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Agilent EPM-P Series Peak and Average Power Meters User's Guide

1. Acqn Cont Trig Source Int internal Level 20 dBm EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Parameters Setting Mode Normal Slope rising Delay 0 Holdoff 20 ms Hysteresis 0 0 dB Output Off Meas The display is setup for a dual numeric window and a single numeric window Upper Window Single Numeric Lower Window Dual Numeric Neas The dual numeric window is configured to display the peak to average ratio in Setup gate 1 and the average power in gate 2 The single numeric window is configured to display the average power in gate 1 Upper Window Gate 1 Average measurement Lower Window Upper Line Gate 1 Peak to average measurement Lower Line Gate 2 Average measurement TIP If you require faster measurement speed set the Filter to MAN Channel Setup screen and reduce the filter value Conversely if you are measuring low power levels and want to improve the stability of the measurements increase the filter value Increasing the filter value however reduces the measurement speed The maximum power level for the E9320 E Series power sensors is 20 dBm Attenuation may be required when directly measuring GSM transmitter output Enter the value of the attenuation as an Offset cE Meas Select to correct the displayed measurement result EPM P Series Peak and Average Powe
2. 1 Identify and select the table you want to edit 2 Rename the table 3 Enter the frequency and calibration factor data pairs 4 Save the table Procedure First select the table you want to edit as follows 1 Press fSystem Tables Pred Dep Offset to display the Offset Tbls screen 2 Choose the table you want to edit using the and keys Press Edit table to display the Edit Offset screen as shown in Figure 2 11 3 Highlight the table title using the and keys Press Change and use the fe gt and keys to select and change the characters to create the name you want to use EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 e Pressing Imsert Char adds a new character to the right of the selected character e Pressing Delete Char removes the selected character 4 Press Enter to complete the entry A frequency in the range of 0 001 MHz to 999 999 GHz can be entered A calibration factor in the range of 1 to 150 can be entered The following rules apply to naming sensor calibration tables e The name must consist of no more than 12 characters e All characters must be upper or lower case alphabetic characters or numeric 0 to 9 or an underscore _ No other characters are allowed e No spaces are allowed in the name RMT TLK Name PEROT Freq Offset 5 000MHz 90 0 6 000MHz 60 0 7 000MHz 70 0 8 000MHz 60 0 93 000MHz 50 0 Figu
3. 2 Use the and keys to select the required register and press The key is disabled greyed out when an unused register is selected 3 Press Confirm OK to Recall Please Confirm Figure 2 30 Recall Pop Up EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Measuring Pulsed Signals TIP The E Series E9320 power sensors are best suited for peak and pulse power measurement However the E9300 E Series 8480 Series and N8480 Series power sensors can be used to measure the power of a pulsed signal The measurement result is a mathematical representation of the pulse power rather than an actual measurement assumes constant peak power The power meter measures the average power of the pulsed input signal and then divides the measurement result by the duty cycle value to obtain the pulse power reading The allowable range of values is 0 001 to 100 The default value is 1 000 If duty cycle is enabled and the channel is setup in single numeric display format the message AMALA is displayed Pulse measurements are not recommended using Agilent E4412A and E4413A power sensors EPM P Series Peak and Average Power Meters User s Guide 67 2 68 General Power Meter Functions An example of a pulsed signal is shown in Figure 2 31 Power 1 Duty Cycle A B Time lt gt A Figure 2 31 Pulsed Signal Procedure Set the duty cycle as follows 1 Press an Sel
4. Softkeys which cannot be selected in your particular mode of operation are grayed out When the unit of measurement is set to Watt it is possible that negative power measurements may be displayed when measuring low power levels Table 2 5 Measurement Units Single Channel Meters Measurement mode Relative mode off Relative mode on Log dBm dB Linear Watt Table 2 6 Measurement Units Dual Channel Meters Measurement mode Relative mode off Ratio Log dB Linear Difference Log dBm Linear Watt Relative mode on dB dB EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Selecting Units of Measurement from the Softkeys In some menus you are required to enter the units of measurement for power In some cases due to the wide power range available the following menu is displayed Prev mW mW __ nW W L Cancel Increment Multiplier m Decrement Multiplier L Cancel Some softkeys may be grayed out so that an invalid value cannot be entered Pressing Increment Multiplier or Decrement Multiplier increases or decreases the multiplier shown in front of W Pressing W after the correct multiplier has been selected confirms the entry EPM P Series Peak and Average Power Meters User s Guide 35 2 General Power Meter Functions Setting the Resolution 36 The resolution of each of the power meter s windows can be set to four differ
5. Trig Delay Marker 1 2 106 Pressing the and hardkeys decreases or increases the trigger delay Your chosen trigger point is indicated by s The trigger event is indicated by The configured value is displayed below the Trig Delay softkey The trigger delay value is shown below the Trig Delay softkey You can also setup the trigger delay by pressing Trig Delay and entering a value in the pop up window Pressing Select highlights Mrks to display the trace markers again Press Marker to select the required marker Press the and keys to move the selected marker EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Gate and trigger markers are moved one pixel when the or keys are pressed and released They are moved up to five pixels at a time when the keys are pressed and held To reduce the time interval represented by one pixel decrease the length of the displayed trace Trace Control Press Trace Control to display the Trace Ctrl menu The vertical and horizontal parameters of the displayed trace are shown in a table The fe gt and keys are used to select a parameter Use the lt gt or K softkeys to increase or decrease the selected parameter Position and scale the trace display as required to ease setting up the gate markers Trace Ctrl Vertical Horizontal Max 3 00dBm BETH 250us Min 20 00dBm Length 1 00ms Figure 3 64 Trace Control
6. phe Agilent Technologies 75 3 Using E9320 E Series Power Sensors Introduction The E9320 E Series power sensors have dual modes of operation e The normal mode is optimized for a wider bandwidth but with reduced dynamic range The instantaneous power of an RF signal can be detected with depending on the sensor type up to 5 MHz of video bandwidth modulation bandwidth Use this mode to measure the peak and average power of pulsed or modulated signals e The average only mode is optimized for high accuracy and wide dynamic range Use this mode to measure the average power of signals below the dynamic range of normal mode The term video is applied here to a signal that has been amplitude demodulated from an RF carrier but contains components in the RF part of the spectrum For a power meter it refers to the output of the sensor diodes in normal mode In normal mode the EPM P Series power meters and E9320 E Series power sensors continuously sample the RF signal at a 20 Msample s rate A trigger can be taken from a rising or falling edge of an RF signal pulse or controlled externally via GPIB or TTL input Table 3 8 Sensor Bandwidth Video bandwidth setting Sensor Low Medium High Off E9321A j E9325A 30 kHz 100 kHz 300 kHz 300 kHz E9322A E9326A 100 kHz 300 kHz 1 5 MHz 1 5 MHz E9323A 5 MHz E9327A 300 kHz 1 5 MHz 5 MHz The Low Medium and High settings provide flat filter responses with very sharp c
7. Agilent R8486A Agilent 8485A continued RCF 100 17 GHz 96 7 50 MHz 100 18 GHz 96 6 26 5 GHz 94 9 19 GHz 96 27 GHz 94 9 20 GHz 96 1 28 GHz 95 4 21 GHz 96 2 29 GHz 94 3 22 GHz 95 3 30 GHz 94 1 23 GHz 94 9 31 GHz 93 5 24 GHz 94 3 32 GHz 93 7 25 GHz 92 4 33 GHz 93 7 26 GHz 92 2 34 GHz 94 9 26 5 GHz 92 1 34 5 GHz 94 5 Agilent R8486D 35 GHz 94 4 RCF 97 6 36 GHz 93 7 50 MHz 97 6 37 GHz 94 9 26 5 GHz 97 1 38 GHz 93 5 27 GHz 95 3 39 GHz 93 9 28 GHz 94 2 40 GHz 92 3 29 GHz 94 5 Agilent 8485A 30 GHz 96 6 RCF 100 31 GHz 97 6 50 MHz 100 32 GHz 98 2 GHz 99 5 33 GHz 98 9 4 GHz 98 9 34 GHz 99 5 6 GHz 98 5 34 5 GHz 99 8 GHz 98 3 35 GHz 97 6 10 GHz 98 1 36 GHz 99 11 GHz 97 8 37 GHz 98 2 12 GHz 97 6 38 GHz 97 4 12 4 GHz 97 6 39 GHz 97 6 14 GHz 97 4 40 GHz 100 16 GHz 97 EPM P Series Peak and Average Power Meters User s Guide 183 6 184 Using 8480 Series Power Sensors Agilent 8487A Agilent 8487A continued RCF 100 34 5 GHz 93 5 50 MHz 100 35 GHz 93 1 100 MHz 99 9 36 GHz 92 500 MHz 98 6 37 GHz 92 4 1 GHz 99 8 38 GHz 90 9 2 GHz 99 5 39 GHz 91 3 3 GHz 98 9 40 GHz 91 4 4 GHz 98 8 41 GHz 90 6 5 GHz 98 6 42 GHz 89 9 6 GHz 98 5 43 GHz 89 1 7 GHz 98 4 44 GHz 88 1 8 GHz 98 3
8. Figure 4 82 CDMA IS 95A 9Ch Fwd 148 EPM P Series Peak and Average Power Meters User s Guide Using E9300 E Series Power Sensors 4 Multitone Signal Measurements In addition to wide dynamic range the E9300 E Series power sensors also have an exceptionally flat calibration factor versus frequency response as shown in Figure 4 83 This is ideal for amplifier intermodulation distortion measurements where the components of the two tone or multitone test signal can be separated by hundreds of MHz Typical Upper Range Calibration Factor iS 2 rz oS uw T o 10 Frequency GHz Typical Lower Range Calibration Factor Cal Factor 0 1 Frequency GHz Figure 4 83 Calibration Factors versus Frequency Simply select a suitable single calibration factor frequency for your measurement using the Frequency key on the power meter EPM P Series Peak and Average Power Meters User s Guide 149 4 Using E9300 E Series Power Sensors Measuring TDMA Signals 150 Power Meter and Sensor Operation The voltages generated by the diode detectors in the power sensor can be very small Gain and signal conditioning are required to allow accurate measurement This is achieved using a 440 Hz square wave output from the power meter to drive a chopper amplifier in the power sensor Digital Signal Processing DSP of the generated square wave is used by the power meter to recover the power sensor output and accurately calcul
9. General Power Meter Functions Setting Measurement Limits 52 You can configure the power meter to detect when a measurement is out with a predefined upper and or lower limit value Limits are windows or measurement display line based and can be applied to power ratio or difference measurements In addition the limits can be set to output a TTL logic level at the rear panel Rmt I O port when the predefined limits are exceeded Power Meter Device Under Swept Source Figure 2 14 Limits Checking Application In this application a swept frequency signal is applied to the input of the Device Under Test The power meter measures the output power The limits have been set at 4 dBm and 10 dBm A fail occurs each time the output power is outside these limits as shown in Figure 2 15 EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions Amplitude Fail 10 dBm 0 0 0 o 0 0 4 dBm 0 Fail p gt Frequency Figure 2 15 Limits Checking Results Setting Limits The power meter can be configured to verify the current measurement in any measurement line against predefined upper and or lower limit values The range of values that can be set for the upper and lower limits and the default values depends on the measurement units in the currently selected measurement line see Table 2 7 Table 2 7 Range of Values for Window Limits Default Window units Max Min Max Min
10. instrument provided with a protective earthing ground incorporated in the power cord The mains plug shall only be inserted in a socket outlet provided with a protective earth contact Any interruption of the protective conductor inside or outside of the instrument is likely to make the instrument dangerous Intentional interruption is prohibited DO NOT operate the product in an explosive atmosphere or in the presence of flammable gasses or fumes DO NOT use repaired fuses or short circuited fuseholders For continued protection against fire replace the line fuse s only with fuse s of the same voltage and current rating and type DO NOT perform procedures involving cover or shield removal unless you are qualified to do so Operating personnel must not remove equipment covers or shields Procedures involving the removal of covers and shields are for use by service trained personnel only DO NOT service or adjust alone Under certain conditions dangerous voltages may exist even with the equipment switched off To avoid dangerous electrical shock service personnel must not attempt internal service or adjustment unless another person capable of rendering first aid and resuscitation is present DO NOT operate damaged equipment Whenever it is possible that the safety protection features built into this product have been impaired either through physical damage excessive moisture or any other reason REMOVE POWER and do not use t
11. 8 Maintenance e The prefix letters indicate the country of manufacture This code is based on the ISO international country code standard and is used to designate the specific country of manufacture for the individual product The same product number could be manufactured in two different countries In this case the individual product serial numbers would reflect different country of manufacture codes The prefix also consists of four numbers This is a code identifying the date of the last major design change e The suffix indicates an alpha numeric code which is used to ensure unique identification of each product throughout Agilent Technologies SERIAL NUMBER PREFIX SUFFIX ae a SER MY12345678 OPT saber Agilent MADE IN MALAYSIA 228 EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 Sales and Service Offices For more information about Agilent Technologies test and measurement products applications services and for a current sales office listing visit our web site http www agilent com You can also contact one of the following centers and ask for a test and measurement sales representative UNITED STATES tel 800 829 4444 fax 800 829 4433 CANADA tel 877 894 4414 fax 800 746 4866 EUROPE tel 31 20 547 2111 JAPAN tel 81 426 56 7832 fax 81 426 56 LATIN AMERICA tel 305 269 7500 ASIA PACIFIC tel 65 6375 8100 fax 65 6755
12. Press this key to switch the meter between on and standby When power is supplied the orange LED above the key is lit Press the key to switch on the meter The green LED lights Press this key to select the upper or lower measurement window The selected window is highlighted by a shadowed box Any measurement setup you create is implemented in the selected window Press this key to choose windowed expanded or full screen display of a numeric measurement It also provides quick access to the Gate Control screen and menu when a trace window is selected Press this key to preset the power meter when it is operating in local mode front panel operation or to select a preinstalled measurement configuration A pop up window is displayed asking you to confirm the command It also enables you to take control of the meter from the front panel when operating via the remote interfaces when Local Lock Out is not enabled EPM P Series Peak and Average Power Meters User s Guide Introduction 1 we ho he e Y These keys are located along the lower edge of the display Key Function Press this key to access general configuration menus such as GPIB address You can also access some measurement configuration menus The measurement screen remains visible a Pa T 3 Press this key to access the channel configuration tables and menus Channel parameters such as averaging and offsets are configured from this menu ra o
13. The display is setup for a dual numeric window and a trace window Upper Window Trace Lower Window Dual Numeric Meas Meas The trace window is configured to show the RF burst from 40 us ahead of the trigger for a duration of 700 us The single numeric window is configured to display the average power in gate 1 Upper Window Trace Max 20 dBm Min 35 dBm Start 40 us Length 700 us Lower Window Upper Line Gate 1 Average measurement Lower Line Gate 1 Peak to average measurement 120 EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 TIP If you require faster measurement speed set the Filter to MAN Channel Setup screen and reduce the filter value Conversely if you are measuring low power levels and want to improve the stability of the measurements increase the filter value Increasing the filter value however reduces the measurement speed The maximum power level for the E9320 E Series power sensors is 20 dBm Attenuation may be required when directly measuring transmitter output Enter the value of the attenuation as an Offset sa J Meas Select to correct the displayed measurement result Measuring NADC Preset The NADC configuration is available by pressing Local and using the the and keys to select NADC Pressing Confirm completes the process The preinstalled setup configures the power meter for average power measure
14. a a D Press this key to access the triggering menu Unless an E9320A E Series sensor is connected all the menu keys are disabled greyed out 3 a S Press this key to setup relative measurements or set display offsets z D i a Setup Press this key to access the measurement display menu You can choose the displayed measurement resolution units and display format D s a Display EPM P Series Peak and Average Power Meters User s Guide 7 1 Introduction These keys are all associated with the menu labels and data entry They are located to the right of the display Key More Prev UUUU e_o Q Function Press this key to access the next pages of a menu For example 1 of 2 displayed beside the key indicates page one of a two page menu is displayed Press to access the second page 2 of 2 is displayed Press this key to access the previous pages of a menu For example 2 of 2 displayed beside the key indicates page two of a two page menu is displayed Press to access the previous page 1 of 2 is displayed These unmarked keys are called softkeys and are referred to by the text on the display beside them For example during a Preset a pop up window asks you to confirm the command Press G6nfiFM to continue that is press the softkey beside the displayed word confirm Similarly pressing Ponce the softkey beside the word cancel stop
15. and duty cycle have no effect on the Recorder Outputs For example the Recorder Outputs can be used to e record swept measurements e level an output from a source using external leveling or e monitor the output power To access the Recorder menu press ees J Recorder Output This menu allows you to switch the Recorder Output signal either on or off The Max Power and Min Power softkeys allow you to scale the power levels to represent the 1 Vdc maximum and 0 Vdc minimum output voltage of the Recorder Output Procedure Configure the recorder output as follows 1 From a measurement display screen use the and C keys to select the measurement window or measurement display line you want to connect to the recorder output 2 Press ess J Recorder Output and Output to select On 3 Press Max Power and Min Power use the and keys to enter the power level you want to generate a 1 Vdc output in the Recorder Maximum pop up Press dBm mW uW or nW to complete the entry EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 CECE Maximum 020 000 Figure 2 26 Recorder Maximum Pop Up 4 Similarly press Min Power and use the e gt and keys to enter the power level you want to generate a 0 Vdc output in the Recorder Minimum pop up Press dBm mW uW or nW to complete the entry Ei Minimum 150 000 Figure 2 27 Recorder Minimum Pop
16. the filter value however reduces the measurement speed The maximum power level for the E9320 E Series power sensors is 20 dBm Attenuation may be required when directly measuring GSM transmitter output Enter the value of the attenuation as an Offset se J Meas Select to correct the displayed measurement result EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 LCL TLK ERR Gate Ctrl Al 2 7 Time 200ns AT Avg 9 83dBm 2Time 366us Peak 93 66dBm See lene 0 17dB Figure 3 73 Markers on a Bluetooth Measurement EPM P Series Peak and Average Power Meters User s Guide 131 3 Using E9320 E Series Power Sensors Measuring cdmaOne G 5 The cdmaOne configuration is available by pressing Es and using the and keys to select cdmaOne Pressing Confirm completes the process The preinstalled setup configures the power meter for a continuous measurement on a cdmaOne signal Peak and peak to average power measurements are made over a defined and statistically valid number of samples With gated 10 ms measurements corresponding to 200 000 samples there is less than a 0 01 probability that there are no peaks above the measured peak value The display Figure 3 74 is configured to show the peak the average and the peak to average ratio Resolipr iz2 e4 Units p Ani bitr Sealing Figure 3 74 cdmaQne Measurement Display 132 EPM P Series Peak and Avera
17. the meter is not synchronized to any modulated RF signal at the sensor input Consequently power levels within the configured time gates are random and the displayed measurement results are not valid 38 82dBm Avg Y H 20 000dBm Figure 3 43 Trigger Menu Free Run Mode The amp symbol in the upper window indicates the power meter is in free run mode The amp symbol is replaced by Q and the measurement halted when Stop Run is pressed to select Stop To make use of the measurement gates the power meter must be triggered The trigger can be taken from a rising or falling measured power level or controlled externally via the Ext Trig input or GPIB Additional features such as holdoff hysteresis and delay are additional control features provided to help you achieve a stable and reliable trigger EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 e Press Aeqn to configure a trigger e Select either Sing Trig or Cont Trig Sing Trig is a single shot mode After triggering the measurement is halted the gt lt symbol is displayed and Stop is highlighted You can start another measurement by pressing Stop Run to select Run and wait for the next trigger e Press Settings to configure the remaining trigger parameters Settings Channel A is trigger source Level 38 E84HER Yy Delay 0 0000 s 70 000dBm 20 000dBm Figure 3 44 Trigger Se
18. 0042 In any correspondence or telephone conversations refer to the power sensor by its model number and full serial number With this information the Agilent Technologies representative can quickly determine whether your unit is still within its warranty period EPM P Series Peak and Average Power Meters User s Guide 229 8 230 Maintenance Returning Your Power Meter for Service Use the information in this section if you need to return your power meter to Agilent Technologies Package the Power Meter For Shipment Use the following steps to package the power meter for shipment to Agilent Technologies for service 1 Fill in a blue service tag available at the end of this guide and attach it to the power meter Please be as specific as possible about the nature of the problem Send a copy of any or all of the following information e Any error messages that appeared on the power meter display e Any information on the performance of the power meter CAUTION Power meter damage can result from using packaging materials other than those specified Never use styrene pellets in any shape as packaging materials They do not adequately cushion the power meter or prevent it from shifting in the carton Styrene pellets cause power meter damage by generating static electricity and by lodging in the rear panel 2 Use the original packaging materials or a strong shipping container that is made of double walled corrugated cardb
19. 199 Figure 7 107 Sensor Tbls Screen 201 Figure 7 108 Edit Cal Screen 202 Figure 8 109 Self Test in Progress 208 Figure 8 110 Error Indicator Position 213 Figure 8 111 Error Queue Message 214 Figure 8 112 Replacing the Fuse 225 xviii EPM P Series Peak and Average Power Meters User s Guide Tables Table 2 1 Power Sensor Connection Requirements 27 Table 2 2 TTL Input Control Logic 30 Table 2 3 TTL Inputs Timing Diagram 1 31 Table 2 4 TTL Inputs Timing Diagram 2 33 Table 2 5 Measurement Units Single Channel Meters 34 Table 2 6 Measurement Units Dual Channel Meters 34 Table 2 7 Range of Values for Window Limits 53 Table 3 8 Sensor Bandwidth 76 Table 3 9 Measurement Example Channel Setup 109 Table 3 10 Measurement Example Gate Configurations 110 Table 3 11 Measurement Example Trigger Configurations 111 Table 3 12 Trace Setup Parameters 113 Table 3 13 GSM900 Configurations 116 Table 3 14 EDGE Configurations 119 Table 3 15 NADC Configurations 123 Table 3 16 iDEN Configuration 126 Table 3 17 Bluetooth Configurations 129 Table 3 18 cdmaOne Configurations 133 Table 3 19 W CDMA Configurations 136 Table 4 21 Power Sensor Connection Requirements 145 Table 6 22 8480 Series Connection Requirements 171 Table 6 23 Installed Power Sensor Models 178 Table 7 24 Power Range in Power Meter Range Setting 186 Table 7 25 N8480 Series Power Sensors Connection Requirements 191 Table 7 26 Installed Power Sensor Models 200 Tabl
20. 36 dBm to 20 dBm Accuracy Instrumentation Please add the corresponding power sensor linearity percentage Refer to the Specifications section in the user s guide supplied with your power sensor Average only Mode Absolute Logarithmic 0 02 dB Linear 0 5 Relative Logarithmic 0 04 dB Linear 1 0 Calibration Temperature temperature 5 C 0 to 55 C Absolute accuracy log 0 04 dB 0 08 dB Absolute accuracy linear 0 8 1 7 Relative accuracy log 0 08 dB 0 16 dB Relative accuracy linear 1 6 3 4 1 Power meter is within 5 C of its calibration temperature EPM P Series Peak and Average Power Meters User s Guide 235 9 Specifications and Characteristics Time Base 0 01 Zero Set Zero Drift and Measurement Noise For E9320 E Series sensors refer to the Specifications Section in the E Series 9320 Power Sensors Operating and Service Guide 1 mW Power Reference Power Output 1 00 mW 0 0 dBm Factory set to 0 4 Traceable to National Physical Laboratories NPL UK Accuracy for two years 0 9 0 to 55 C 0 6 25 10 C 1 03 23 3 C Frequency 50 MHz nominal SWR 1 06 maximum 1 08 maximum for Option 003 Connector Type Type N f 50 Q 236 EPM P Series Peak and Average Power Meters User s Guide Specifications and Characteristics 9 Measurement Characteristics Measurement Characteristics Measurements Average Power P
21. 45 GHz 86 9 9 GHz 98 3 46 GHz 85 8 10 GHz 98 3 47 GHz 85 4 11 GHz 98 1 48 GHz 83 2 12 GHz 97 9 49 GHz 81 6 13 GHz 98 50 GHz 80 2 14 GHz 98 2 Agilent 08486A 15 GHz 97 7 RCF 100 16 GHz 96 8 50 MHz 100 17 GHz 97 33 5 GHz 91 3 18 GHz 96 3 34 5 GHz 92 19 GHz 95 9 35 GHz 91 7 20 GHz 95 2 36 GHz 91 5 21 GHz 95 6 37 GHz 92 1 22 GHz 95 5 38 GHz 91 7 23 GHz 95 4 39 GHz 91 24 GHz 95 40 GHz 90 7 25 GHz 95 4 41 GHz 90 3 26 GHz 95 2 42 GHz 89 5 27 GHz 95 1 43 GHz 88 5 28 GHz 95 44 GHz 88 7 29 GHz 94 4 45 GHz 88 2 30 GHz 94 46 GHz 87 31 GHz 93 7 47 GHz 86 4 32 GHz 93 8 48 GHz 85 3 33 GHz 93 49 GHz 84 7 34 GHz 93 2 50 GHz 82 9 EPM P Series Peak and Average Power Meters User s Guide EPM P Series Peak and Average Power Meters User s Guide 7 Using N8480 Series Power Sensors Introduction 186 Power Meter Configuration 188 Measurement Accuracy 190 phe Agilent Technologies 185 7 Using N8480 Series Power Sensors Introduction The N8480 Series power sensors is a replacement for the 8480 Series power sensors excluding the D model sensors with build in Electrically Erasable Programmable Read Only Memory EEPROM The N8480 Series power sensors is used for measuring the average power supplied by RF or microwave source or device under test DUT The N8480 Series power sensors places a 50 ohm load on the RF or microwave source The power meter indicates the power dissipated in this load in W or dBm The N8480 sensors exclud
22. 60 dBm to 10 dBm 10 dBm to 20 dBm E9300 1B 30 dBm to 20 dBm 20 dBm to 44 dBm E9300 1H 50 dBm to 0 dBm 0 dBm to 30 dBm The default is AUTO In AUTO the range crossover value depends on the sensor model being used E9300 1 4A E9300 1B E9300 1H 10 dBm 0 5 dBm 20 dBm 0 5 dBm 0 dBm 0 5 dBm EPM P Series Peak and Average Power Meters User s Guide 153 4 Using E9300 E Series Power Sensors Procedure Set the range as follows 1 Press to display the Channel Setup In addition on dual channel meters you may need to press Channel to display the Channel Setup for the channel you want to use 2 Use or to highlight the Range setting 3 Press hange to scroll through the choices AUTO LOWER or UPPER and choose as required Press Done to complete the procedure Measurement Considerations While autorange is a good starting point it is not ideal for all measurements Signal conditions such as crest factor or duty cycle may cause the power meter to select a range which is not the optimum configuration for your specific measurement needs Signals with average power levels close to the range switch point require you to consider your needs for measurement accuracy and speed For example using an E9300 1 4A sensor where the range switch point is 10 0 5 dBm in a pulsed signal configured as follows Characteristic Value Peak Amplitude 6 dBm Duty Cycle 25 The calculated average power is 12 dBm 154 EP
23. 81 426 56 7832 fax 81 426 56 7840 Korea tel 080 769 0800 fax 080 769 0900 Latin America tel 305 269 7500 Taiwan tel 0800 047 866 fax 0800 286 331 Other Asia Pacific Countries tel 65 6375 8100 fax 65 6755 0042 Or visit Agilent worlwide Web at www agilent com find assist Product specifications and descriptions in this document are subject to change without notice Always refer to the Agilent Web site for the lat est revision Agilent Technologies Inc 2000 2010 Printed in Malaysia Fifth Edition April 23 2010 E4416 90023 l 7 Agilent Technologies
24. 99 8 and a calibration factor of 97 6 at the measurement frequency e Disconnect the power sensor from any signal source e Press Jms Ref CF e Use the gt and keys to select and change the digits to display 99 8 in the pop up window Complete the entry by pressing e Press and the channel Zero softkey to zero the channel e When the zeroing routine is complete connect the power sensor to the POWER REF output e Press the channel Cal softkey to start the calibration routine e When the calibration routine is complete press fFrsauency Cal Fac EPM P Series Peak and Average Power Meters User s Guide Using 8480 Series Power Sensors 6 e Use the and keys to select and change the digits to display 97 6 in the pop up window e Complete the entry by pressing e Connect the power sensor to the signal to be measured e The corrected measurement result is displayed EPM P Series Peak and Average Power Meters User s Guide 173 6 Using 8480 Series Power Sensors Sensor Calibration Tables This section describes how to use sensor calibration tables Sensor calibration tables store the measurement calibration factors for a power sensor model or for a specific power sensor in the power meter They are used to correct measurement results TIP Use sensor calibration tables when you want to make power measurements over a range of frequencies using one or more power sensors The
25. Back m RS422 Loop Back More accesses Trigger Loop back Time base Fast Path Accuracy The RS232 and RS422 loop back tests require a specially wired connector refer to the EPM P Series power meter service guide Each of these tests can be run individually Information on the instrument self test and confidence check are described in Instrument Self Test on page 208 Refer to Test Descriptions on page 210 if you require a description of the other tests EPM P Series Peak and Average Power Meters User s Guide 207 8 Maintenance Instrument Self Test If Instrument Self Test is selected the following tests are run These are the same tests which are run using the TST command ROM checksum RAM Lithium Battery Display Assembly Calibrator Measurement Assemblies Fan Serial Interface As each test takes place the name of the test is listed on the screen While a test is running the message Testing appears beside the name of the test As each stage of the test is completed the Testing message is replaced by either Passed or Failed Self Test RESULT Passed Passed RAM Battery Passed Display Assy Passed Calibrator Passed Meas Assy Passed Serial Interface Testing Figure 8 109Self Test in Progress When the test is complete the result is displayed until Done is selected If the self test failed information about the failure is displayed on the screen 208 EPM P
26. Change Use the fe and keys to change the value to match the power sensor Press to complete the entry Edit and or enter the frequency and calibration factor pairs as follows 5 Use the fe and keys to select the frequency or calibration factors in the table 6 Press Change and edit the value to match the sensor you want to use Complete the entry by pressing the GHz or MHz keys 7 Enter additional frequency calibration factor pairs by pressing Insert when the Edit Cal screen is displayed You are prompted to enter the frequency first followed by the respective calibration factor The power meter automatically sets up the table in frequency ascending order 8 When you have finished editing the table press Done 9 Use the fe and keys and the channel Table Off On to allocate the new table to the measurement channel 10 Press Done to complete the editing process and save the table Ensure that the frequency points you use cover the frequency range of the signals you want to measure If you measure a signal with a frequency outside the frequency range defined in the sensor calibration table the power meter uses the highest or lowest frequency point in the sensor calibration table to calculate the calibration factor EPM P Series Peak and Average Power Meters User s Guide 181 6 Using 8480 Series Power Sensors Preinstalled Calibration Table Contents The following lists detail the c
27. E Series Power Sensors 3 Measurement Method The E4416A meter and E9320 E Series power sensors continuously sample the RF signal at a 20 MHz rate Similarly the E4417A samples both channels at the same rate Various trigger methods enable the measurement of continuously modulated signals or single events Measurement Gates A system of gates controlled by and referenced to a trigger point is used to extract measurement data from the captured trace The trace data within each gate period is subsequently used for the individual measurement calculations Up to four gates can be set up for each channel Refer to Figure 3 36 Gate 3 Gate 4 Trigger Figure 3 36 Measurement Gates With the gates setup as shown in Figure 3 36 for example you can simultaneously measure e The average power level of the pulse Gate 1 average measurement e The Peak to average ratio Gate 1 peakto average measurement e The Pulse droop Gate 3 average measurement minus Gate 4 average measurement e The average off power level ahead of the pulse Gate 2 average measurement EPM P Series Peak and Average Power Meters User s Guide 79 3 Using E9320 E Series Power Sensors Measurement Display Average peak and peak to average ratio measurements are made within each gate period generating 12 possible measurement results per channel as shown in Figure 3 37 Gates 1 to 4 Peak Feed 1 Gate 1 Average Pk to Avg Feed 2 D
28. Save Recall screen as shown in Figure 2 28 RMT TLK Reg Name Status Statel Available State2 Available Available State4 Available State6 Available State Available States Available States Available 10 Statei0 Available 1 2 3 4 5 States Available 6 7 8 9 Figure 2 28 Save Recall Screen Your power meter has been shipped with measurement configurations suitable for common wireless communication formats already saved as Instrument States These require E9320 E Series power sensors Refer to Chapter 3 for more information 2 Using the and keys select an available name from the displayed list To change the name of a register proceed from step 4 otherwise press Save 3 The power meter prompts you to press Confirm to proceed EPM P Series Peak and Average Power Meters User s Guide 65 2 66 General Power Meter Functions OK to SAVE Please Confirm Figure 2 29 Save Pop Up If you need to modify a name 4 If you have not already done so press Save Recall 5 Use the and keys to select the required register and press Edit Name The selected name is displayed in a pop up window Modify this as required e Use and keys to modify the character on which the cursor is currently positioned e Use or to move to other characters e Use Insert Char and Delete Char as required 6 To confirm your choice press Enter To recall a measurement setup 1 Press aie Save Recall
29. Series Power Sensors FDO Table Video Avg Video B W If your test setup has known frequency dependant amplitude variations you can remove these errors from the displayed measurement results by setting up and using a Frequency Dependant Offset table Refer to Setting Offsets on page 39 Video averaging uses a digital filter to average to average repetitions of a triggered signal The number of acquisitions averaged can range from 1 to 256 With video averaging the average of a number of acquisitions is calculated to smooth the displayed trace and reduce apparent noise The measurement requires a continuously repeating signal Increasing the value of the filter reduces noise but increases the time required to make the measurement Select a value close to or greater than that of the modulating signal bandwidth Note that this varies between sensors See Table 3 8 on page 76 The pass band shapes achieved by the video bandwidth settings are flat with very sharp cutoffs to ensure accurate power measurement within the specified band EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 E9323A and E9327A sensors Amplitude 0 3 5 dB Approx 00kHz 1 5MHz 5MHz Frequency Meter B W l l Setting Low 4 Med High l l Off Figure 3 39 Bandwidth Filter Shapes A fourth filter Off setting is provided This provides approximately 3 dB roll off at the maximum se
30. a configuration that conflict with a previous setup The Upper window previous setup is lost upper measurement has been disconnected from TTL output 2 18 EPM P Series Peak and Average Power Meters User s Guide Introduction 1 Numeric or Alphanumeric Entry Pop Up This pop up window is displayed when you are required to modify numeric or alphanumeric data ra The and keys move the position ay of the cursor The a and keys increment and decrement the alphanumeric digit on which the cursor is currently positioned 00 001 EPM P Series Peak and Average Power Meters User s Guide 19 1 20 Introduction EPM P Series Peak and Average Power Meters User s Guide EPM P Series Peak and Average Power Meters User s Guide 2 General Power Meter Functions Zeroing and Calibrating 22 Setting the Units of Measurement 34 Setting the Resolution 36 Making Relative Measurements 37 Setting Offsets 39 Setting Averaging 49 Step Detection 51 Setting Measurement Limits 52 Setting the Range 59 Scaling the Analog Display 60 Recorder Output 62 Saving and Recalling Power Meter Configurations 65 Measuring Pulsed Signals 67 Presetting the Power Meter 70 phe Agilent Technologies 21 2 General Power Meter Functions Zeroing and Calibrating This section describes how to zero and calibrate the power meter and sensor combination You should always zero the power meter prior to calibrating it Zeroing Zeroing adjusts
31. a wide range of signal frequencies a sensor table is more effective as you only need to enter the frequency of the signal you are measuring The power meter automatically selects and applies the calibration factor from the selected table Frequency Specific Calibration Factors This section shows you how to make a measurement using the calibration factor for the frequency of the signal you want to measure TIP This method is best suited to making several measurements at one frequency as you need only enter a small amount of data Using this method requires the following steps 1 Zero and calibrate the power meter sensor combination 2 Set the calibration factor value for the frequency of the signal you want to measure 3 Make the measurement Procedure First select and enter the reference calibration factor for the sensor you are using as follows 1 Ensure the power sensor is disconnected from any signal source 2 Refer to the connection requirements in Table 7 25 and ensure the sensor is ready for connection to the Power Reference 3 Check the current reference calibration factor setting by pressing E The value is displayed under the channel Ref CF softkey Does this setting match the value for the sensor The power sensor reference calibration factor can normally be found above the calibration factors table on the power sensor body EPM P Series Peak and Average Power Meters User s Guide 193 7 194 Using N84
32. average power in gate 2 The trace window is configured to show the RF burst from 0 2 ms ahead of the trigger for a duration of 28 ms Upper Window Max 20 dBm Min 35 dBm Start 0 2 ms Length 28 ms Lower Window Upper Line Gate 1 Average measurement Lower Line Gate 2 124 Average measurement EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 TIP If you require faster measurement speed set the Filter to MAN Channel Setup screen and reduce the filter value Conversely if you are measuring low power levels and want to improve the stability of the measurements increase the filter value Increasing the filter value however reduces the measurement speed The maximum power level for the E9320 E Series power sensors is 20 dBm Attenuation may be required when directly measuring GSM transmitter output Enter the value of the attenuation as an Offset se J Meas Select to correct the displayed measurement result Measuring iDEN The iDEN configuration is available by pressing and using the and keys to select iDEN Pressing Confirm completes the process The preinstalled setup configures the power meter for average power and the peak to average power ratio measurements in one iDEN training and data pulse and the average power in a 90 ms iDEN frame Triggering is achieved using the rising edge of the training burst Time gating is used to measure the ave
33. configure the required value in the pop up window Press dBm to complete the entry Trace Max 020 000 Figure 3 58 Trace Maximum Pop Up e Similarly select each parameter as required completing the entry by pressing the appropriate units key The trace start time is relative to your selected trigger point Positive values start the trace up to one second after the trigger event Use a negative value to start the trace up to one second before the trigger EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Setting Up Using Trace Markers Setting up a measurement using the trace markers requires less information about the signal you are measuring than the data entry method Similar steps are required but in a different and less ordered manner More iteration between the power meter controls may be required to complete the measurement set up While you can configure the display with several measurement results there are some occasions where the information presented as shown in Figure 3 59 is sufficient and additional display set ups are not required 7 Time 34 3us Pow 40 60dBm Avg 5 67dBm 2Time 155us 4 32dBm Pow 4 44dBm Pk Avg 1 34dB Figure 3 59 Gate Control Menu and Display If the bandwidth of a modulated signal is unknown you may discover during the set up process that a power sensor of lesser or greater bandwidth is required Loosely follow this process un
34. default Channel Setup RYG only AUTO AUTO i286 Off LBBB off 6 80688 Trase 50 000MHz Setup Off Off Off a Off On EPM P Series Peak and Average Power Meters User s Guide Using E4410 E Series Power Sensors 5 Measurement Accuracy Power sensors have small errors in their response over frequency The response of each sensor is measured during manufacture and during periodic calibration With E Series power sensors the resulting frequency compensation information is written into Electrically Eraseable Programmable Read Only Memory EEPROM This allows the frequency and calibration data to be downloaded to the power meter automatically Using calibration factors enables you to achieve improved measurement accuracy This section describes making continuous wave measurements using the E4410 E Series power sensors Making a measurement requires the following steps 1 Zero and calibrate the power meter sensor combination 2 Set the frequency for the signal you want to measure 3 Make the measurement Procedure First zero and calibrate the power meter sensor combination 1 Ensure the power sensor is disconnected from any signal source 2 Press and the channel Zero softkey to zero the channel The message and wait symbol are displayed 3 Connect the power sensor to the POWER REF output 4 Press the channel Cal_ softkey to start the calibration routine The message and wait symbol are displayed TIP You can
35. error Ch A Dty Cyc may impair accuracy with ECP sensor This indicates that the sensor connected to channel A is for use with CW signals only 310 System error Ch B Dty Cyc may impair accuracy with ECP sensor This indicates that the sensor connected to channel B is for use with CW signals only 310 System error Sensor EEPROM Read Failed critical data not found or unreadable This indicates a failure with your Agilent E Series or N8480 Series power sensor Refer to your power sensor manual for details on returning it for repair 310 System error Sensor EEPROM Read Completed OK but optional data block s not found or unreadable This indicates a failure with your Agilent E Series or N8480 Series power sensor Refer to your power sensor manual for details on returning it for repair 310 System error Sensor EEPROM Read Failed unknown EEPROM table format This indicates a failure with your Agilent E Series or N8480 Series power sensor Refer to your power sensor manual for details on returning it for repair 310 System error Sensor EEPROM lt gt data not found or unreadable Where lt gt refers to the sensor data block covered for example Linearity Temp Comp temperature compensation This indicates a failure with your Agilent E Series or N8480 Series power sensor Refer to your power sensor manual for details on returning it for repair 310 System error Sensors connected to b
36. field displays the channel being measured This measurement line is the Upper Window Upper Measurement 4 The arrow indicates the currently selected measurement display line With an E Series E9320 power sensor connected the channel and associated gate number are shown 6 With an E Series E9320 power sensor connected the associated measurement type is shown below the channel and gate number 7 This field displays the measurement units either dBm dB Watts or percent With an E Series E9320 power sensor connected a measurement result of 270 dBm indicates the input power level is outwith the sensitivity of the sensor 8 With an E Series E9320 power sensor connected you can make combined measurements with a single channel meter A dual channel meter extends this feature across both channels EPM P Series Peak and Average Power Meters User s Guide 11 1 Introduction A CF 100 0 Dty Rng Ofs Rel 50 0MHz Cyc Hid Over 20 0848 20 08dBm Y 70 000dBm 20 000dBm 9 This window is configured to show a single numeric display 10 This window is configured to show an analog meter which displays the measurement result and the meter scaling 11 This field displays the number of pages in the current menu For example 1 of 2 indicates that there are two pages in the menu and the first page is currently displayed Pressing displays the next page indicated by 2 of 2 Pe displays the previous menu page 12 The avai
37. modulation bandwidth They are ideally suited to the average power measurement of multi tone and spread spectrum signals such as CDMA W CDMA and digital television formats Please refer to the documentation supplied with your E Series E9300 power sensor for specification and calibration information EPM P Series Peak and Average Power Meters User s Guide Using E9300 E Series Power Sensors Power Meter Configuration 4 The EPM P Series power meters automatically recognize an E Series E9300 power sensor when it is connected The sensor calibration data is automatically read by the power meter The power meter also configures the auto averaging settings shown in Figure 4 77 to suit the power sensor characteristics Maximum Resolution Setting E9300 1 4A E9300 1H 9300 1B Sensor Power 1 2 3 1 1 1 10 dBm 20 dBm 40dBm eee ee ee ee ee ee eee 2 1 1 4 2 dBm 12 dBm 32dBm 2 2 2 5 2 ee eee ee eee G T 1 1 8 a 4 dBm 6 dBm 26dBm 54 54runnnnnnnnnnnnn 1 4 16 s 10 dBm 0 dBm 20 dB Hse ee ae ee Slee ee ee Ss Ses 1 16 64 2 E 1 1 1 S 20 dBm 10 dBm WOMBin sas a a at a a eee F 1 1 2 amp 30 dBm 20 dBm OdBm Ree ee ee ee ee eee amp 1 2 16 40 dBm 30 dBm QB Sede er dn eee ee a a 4 16 128 50 dBm 40 dBm 20dBm Y eee eee ee eee 32 64 256 Minimum Sensor Power Figure 4 77 E9300 E Series Auto Averaging Settings 32 128 128 16 64 256 safesany jo
38. open a gate up to one second before the trigger e Press Change and again use the gt and keys to configure the required value in the Time Gating Start pop up window Time Gating Start 00 000 Figure 3 41 Time Gating Start Pop Up EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors e Complete the entry by pressing the required second millisecond or microsecond 9 Mis or MS softkey e Select the Gate Length parameter and press Change Use the and keys to configure the required value in the Time Gating Length pop up window A maximum of one second can be entered Time Gating Length gt ay 100 000 Figure 3 42 Time Gating Length Pop Up e Complete the entry by pressing the required second milisecond or microsecond 9 Ms or MS softkey e Repeat this process until you have setup all the required gates 3 The gate length is the length of time from the gate start It can only have positive values EPM P Series Peak and Average Power Meters User s Guide 3 90 Using E9320 E Series Power Sensors Step 3 The Trigger Setup e Press Fraser The Trigger menu is displayed The Trigger menu is disabled when the Sensor Mode is set to AVG only in the Channel Setup The trigger status is also displayed below the A qn label in the Trigger menu Table 3 43 on page 90 shows the power meter display in Free Run mode In this mode
39. parameters as follows 112 EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Table 3 12 Trace Setup Parameters Parameters Setting Max 20 dBm Min 35 dBm Start 40 us Length 700 us Disp Form Respintior 12a Units Ani Mee Seating Figure 3 66 Measurement Example Measurement Display TIP If you require faster measurement speed set the Filter to MAN Channel Setup screen and reduce the filter value Conversely if you are measuring low power levels and want to improve the stability of the measurements increase the filter value Increasing the filter value however reduces the measurement speed The maximum power level for the E9320 E Series power sensors is 20 dBm Attenuation may be required when directly measuring transmitter output Enter the value of the attenuation as an Offset fsa J Meas Select to correct the displayed measurement result EPM P Series Peak and Average Power Meters User s Guide 113 3 Using E9320 E Series Power Sensors Using Preinstalled Measurement Setups Preinstalled measurement setups for GSM900 EDGE NADC iDEN Bluetooth cdmaOne W CDMA and cdma2000 help reduce the time required to measure these common wireless communications formats They are accessed quickly by pressing the Fes key and using the cursor keys to select the required format from the displayed list LCL TLK Please select Preset type Conf
40. pressing ti Disp Type 1 Disp Form ma 7270 00dem ff 75 Unit ie 0 00aB Ani kitr ATAS 30 00anm sn 1 The status reporting line displays five fields three associated with either GPIB RS232 or RS422 status and two associated with error and warning conditions The first field displays either RMT remote GPIB RS232 or RS422 operation or LCL local front panel operation For GPIB operation the second field displays TLK if the power meter is addressed to talk or LSN if it is addressed to listen The third field indicates an SRQ service request For RS232 and RS422 operation the second field displays RX when data is being received The third field displays TX when the power meter is transmitting data The fourth field indicates ERR for any error conditions The last field is used to report error and warning messages 10 EPM P Series Peak and Average Power Meters User s Guide Introduction 1 9 RMT TLK Disp Form 3 4 5 Resolution 6 1294 7 Unit Pk Avg 0 00aB Arni Mir 8 Al A4 30 OOgem Seating 2 There are two measurement windows This is the upper measurement window The shading around the window indicates it has been selected using the or keys With numeric measurement results you can choose either two rectangular windows a single enlarged window or a full screen display by pressing a The display style is applied to the currently selected window or measurement line 3 This
41. sensor to the POWER REF output Press the channel Cal softkey to start the calibration routine The message and wait symbol are displayed The power meter and sensor are now ready for use TIP You can reduce the steps required to carry out the zero and calibration procedure as follows Connect the power sensor to the POWER REF output Press __ ana ZSTC For dual channel meters press Zero r Cal Zero cal A or Zero Cal B as required Following calibration ensure you remove reattach any attenuators or adaptors before making a measurement EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Calibration with 8480 Series Power Sensors and N8480 Series Power Sensors with Option CFT This section describes the calibration procedure for Agilent 8480 Series power sensors and N8480 Series power sensors with Option CFT The reference calibration factor is entered manually V8486A and W8486A sensors For most 8480 Series sensors the correct A type or D type linearity correction table is automatically selected The linearity type field on the measurement screen is grayed out Under the gray out condition the selected linearity correction table that is displayed on the screen is irrelevant to the correct linearity correction table that is automatically selected by power meter firmware However for the V8486A and W8486A sensors V8486A and W8486A sensors only the automatic s
42. the 30 kHz bandwidth of the E9321A and E9325A sensors in the Low setting and these are best suited Other E9320 sensors may be used in their lowest setting but they provide less dynamic range and low level stability After a Preset Video B W defaults to High for all sensors Sensor Mode Normal Range AUTO Filter AUTO Offset Off Frequency 800 MHz FDO Table Off Video Avg Off Video B W E9321A E9325A Low E9322A E9326A Low E9323A E9327A Low Step Detect On Gates Two gates are configured as follows Gate1 Start 123 5 us Length 6 46 us Gate2 Start 20 123 ms Length 6 46 ms Gate3 Start 0 Length 0 Gate4 Start 0 Length 0 The trigger is configured for a power level of 20 dBm on a rising edge A trigger hold off is also setup for 30 ms disabling the trigger for 4 5 time slots ensuring the same time slot is measured each time Acqn Cont Trig Source Int internal EPM P Series Peak and Average Power Meters User s Guide 123 3 Using E9320 E Series Power Sensors Parameters Setting Level 20 dBm Mode Normal Slope rising Delay 0 Holdoff 30 ms Hysteresis 0 0 dB Output Off EA The display is setup for a dual numeric window and a trace window Upper Window Trace Lower Window Dual Numeric Meas The dual numeric window is configured to display the average power in gate 1 sae and the
43. the four measurement line limit conditions can be connected to either TTL output line The TTL connector is an RJ 45 Series shielded modular jack assembly with the TTL output pins connected as shown in Figure 2 17 Pinnumber Connection 1 None 2 Ground 3 TTL Output 1 4 TTL Output 2 pares 5 TTL Input 1 6 TTL Input 2 7 Ground 8 Ground Figure 2 17 Remote 1 0 TTL Outputs Procedure Set the TTL Output as follows 1 Press Sts mimis ETTHOutputl 2 Use the and keys to select the measurement line you want to configure 3 Press TTL Output EPM P Series Peak and Average Power Meters User s Guide 55 2 56 General Power Meter Functions TTL Output gt Figure 2 18 TTL Output Pop up 4 Use the and keys to select TTL Output line 1 2 or Off Press Enter to confirm your choice The new setting appears under the TTL Output softkey If you have selected a TTL Output line previously configured for another measurement a warning message is displayed ATTENTION PLEASE Upper window upper measurement has been disconnected from TTL output 2 Figure 2 19 Example of TTL Disconnect Warning Message Your new connection overrides the previous configuration which is now disconnected 5 Press Limits The TTL output can indicate an over limit condition under limit condition or both Use the and keys to select your choic
44. the power meter for a zero power reading with no power applied to the power sensor During zeroing the wait symbol is displayed To zero the power meter and sensor Press aa and the channel Zero softkey The message and wait symbol are displayed On dual channel meters you can zero both channels sequentially by pressing Zero Both During zeroing the wait symbol is displayed When to zero Zeroing of the power meter is recommended e whena5 C change in temperature occurs e when you change the power sensor every 24 hours prior to measuring low level signals For example 10 dB above the lowest specified power for your power sensor 22 EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Calibration Calibration sets the gain of each power meter channel and sensor combination using a 50 MHz 1 mW 0 dBm signal Use the power meter s POWER REF as a traceable power reference or a suitable external reference signal An essential part of calibrating is setting the correct reference calibration factor for the power sensor you are using You must manually enter the reference calibration factor for an 8480 Series power sensor or N8480 Series power sensor with Option CFT The reference calibration factor is automatically set for all E Series sensors and N8480 Series sensors excluding Option CFT During calibration the wait symbol is displayed Offset relative and duty cycle setti
45. 0 000 samples there is less than a 0 01 probability that there are no peaks above the measured peak value The display Figure 3 75 is configured to show the peak the average and the peak to average ratio Resotutiog 4 9 4aBm ae Anki Mir 5 1 3 4B Seating Figure 3 75 W CDMA Measurement Display EPM P Series Peak and Average Power Meters User s Guide 135 3 136 Using E9320 E Series Power Sensors Table 3 19 W CDMA Configurations Parameters Setting With 5 MHz bandwidth the E9323A and E9327A sensors are best suited The E9321A E9322A E9325A and E9326A sensors are not recommended due to their lack of bandwidth 5 MHz required After a Preset Video B W defaults to High for all sensors Sensor Mode Normal Range AUTO Filter AUTO Offset Off Frequency 1900 MHz FDO Table Off Video Avg Off Video B W E9323A E9327A High Step Detect On Gates Only one gate is set up starting 1 us after the trigger for a duration of 10 ms Gate Start Os Length 10 ms Gate2 Start 0 Length 0 Gate3 Start 0 Length 0 Gate4 Start 0 Length 0 The trigger is configured for continuous triggering on a rising edge at 10 dBm This results in continuously updated results based on a 10 ms period relating to a position beyond 0 01 on the CCDF curve Acqn Cont Trig Source Int internal Level 10 dBm Mode
46. 422 50 ns t1 0s 50 ns for delays lt 50 ms otherwise 200 ns Range us to 400 ms Resolution 1 of selected value minimum of 100 ns Range 20 to 20 dBm Level Accuracy 0 5 dB Resolution 0 1 dB Latency 500 ns 100 ns Latency is defined as the delay between the applied RF crossing the trigger level and the power meter switching into the triggered state External Trigger Range Trigger Out High gt 2 0 V Low lt 0 8 V BNC connector rising or falling edge triggered input impedance gt 1 kW Output provides TTL compatible levels High gt 2 4 V Low lt 0 4 V and uses a BNC connector 238 EPM P Series Peak and Average Power Meters User s Guide Sampling Characteristics Sampling Rate Sampling Technique Rear Panel Inputs Outputs Recorder Output s Remote Input Output RS 232 422 Interface Trigger In Trigger Out Ground Line Power Specifications and Characteristics 9 20 MSa s Continuous sampling Analog 0 to 1 V 1 kW output impedance BNC connector Two outputs are available on the E4417A Channel A and B TTL Output used to signal when measurement has exceeded a defined limit TTL Input initiates zero and calibration routine Connector type RJ 45 series shielded modular jack assembly TTL Output high 4 8 V max low 0 2V Max TTL Input high 3 5 V min 5 V max low 1 Vmax 0 3 V min Serial interface for communication with an external controller M
47. 80 Series Power Sensors 4 If required change this setting by pressing the channel Ref CF The reference calibration factor pop up window is displayed as shown in Figure 7 101 Ref Cal Factor an ay 100 0 Figure 7 101Reference Calibration Factor Pop Up Window Modify this see below as required e Use or to highlight the digit you want to change e Use or to increment or decrement the highlighted digit 5 Confirm your choice by pressing Now zero and calibrate the power meter sensor combination as follows 6 Press and the channel Zero softkey to zero the channel The message and wait symbol are displayed 7 Connect the power sensor to the POWER REF output 8 Press the channel Cal softkey to start the calibration routine The message and wait symbol are displayed Now set the sensor calibration factor for the frequency of the signal you want to measure 9 Check the current calibration factor setting by pressing The value is displayed under the channel Cal Fac softkey Does this setting match the value for the sensor at the frequency of the signal you want to measure The calibration factors are presented in table form on the power sensor body You may need to interpolate between values if the specific frequency is not listed EPM P Series Peak and Average Power Meters User s Guide Using N8480 Series Power Sensors 7 10 If required change this setting by pressing the channel Cal Fac The calibration f
48. 8480 Series Power Sensors excluding Option CFT Power sensors have small errors in their response over frequency The response of each sensor is measured during manufacture and during periodic calibration With N8480 Series power sensors excluding Option CFT the resulting frequency compensation information is written into Electrically Eraseable Programmable Read Only Memory EEPROM This allows the frequency and calibration data to be downloaded to the power meter automatically Using calibration factors enables you to achieve improved measurement accuracy This section describes making continuous wave measurements using the N8480 Series power sensors excluding Option CFT Making a measurement requires the following steps 1 Zero and calibrate the power meter sensor combination 2 Set the frequency for the signal you want to measure 3 Make the measurement EPM P Series Peak and Average Power Meters User s Guide Using N8480 Series Power Sensors 7 Table 7 25 N8480 Series Power Sensors Connection Requirements Sensor N8481A N8481H N8482A N8482H N8481B N8482B N8485A N8486AR N8486A0 N8487A N8488A Connection Requirements These power sensors connect directly to the POWER REF These power sensors are configured with an attenuator Prior to calibration this attenuator must be removed Replace the attenuator before making measurements This power sensor requires an APC 3 5 f to 50 m N Type adapter 0
49. 8482B and Agilent 8482H power sensors use the same data as the Agilent 8482A EPM P Series Peak and Average Power Meters User s Guide Using N8480 Series Power Sensors 7 There are also ten sensor calibration tables named CUSTOM_0 through CUSTOM_9 These tables do not contain any data when the power meter is shipped from the factory Editing or generating power sensor tables requires the following steps 1 Identify and select the sensor table you want to edit or create 2 Rename the table 3 Edit enter the frequency and calibration factor data pairs 4 Save the table Procedure First select the table you want to edit or create as follows 1 Press Pry Tables Sensor Cal Tables to display the Sensor Tbls screen RMT TLK Tbl Name State Pts DEFAULT off 2 HP84814 off 19 HP84824 off 12 HP8483A off 10 HP8481D off 21 HP8485A off 22 R8486A off 17 Q8486A off 19 R8486D off 17 HP84874 off 54 0 1 2 3 4 5 6 7 8 9 Figure 7 107 Sensor Tbls Screen 2 Choose the table you want to edit using the and keys Press Edit Table to display the Edit Cal screen as shown in Figure 7 108 EPM P Series Peak and Average Power Meters User s Guide 201 7 202 Using N8480 Series Power Sensors RMT TLK Name Ref CF 100 0 Freq Cal Fac 50 000MHz 100 0 100 000MHz 95 8 2 000GHz 99 0 3 000GHz 98 6 4 000GHz 96 0 5 000GHzZ 97 7 6 000GHZ 97 4 7 000GHz 97 1 Figure 7 108 Edit Cal Screen A freque
50. 8485 60005 to connect to the POWER REF Remove this adapter before making measurements These waveguide power sensors have two connectors Use the N Type connector to calibrate the power meter This sensor requires an APC 2 4 f to 50 Q m N Type adapter 08487 60001 to connect to the POWER REF Remove this adapter before making measurements Procedure First zero and calibrate the power meter sensor combination 1 Ensure the power sensor is disconnected from any signal source 2 Press ze and the channel Zero softkey to zero the channel The message and wait symbol are displayed 3 Connect the power sensor to the POWER REF output 4 Press the channel Gal softkey to start the calibration routine The message and wait symbol are displayed TIP You can reduce the steps required to carry out the zero and calibration procedure as follows e Connect the power sensor to the POWER REF output e Press and Zero Cal For dual channel meters press Zero Cal Zor eca or Zor Cal B as required EPM P Series Peak and Average Power Meters User s Guide 191 7 192 Using N8480 Series Power Sensors Now set the frequency of the signal you want to measure The power meter automatically selects the apporpriate calibration factor 5 Press 2 and the channel Breg softkey to display the pop up window Frequenc 100 000 Figure 7 100Frequency Pop Up Window 6 Use the gt and E keys to enter the f
51. 9 with a further 10 10 to 19 available as custom tables The Pts column shows the number of data points in the table 2 Use the and keys to select the sensor model you are using 3 Press Table On Off to highlight On The State changes to on as shown in Figure 6 92 LCL TLK Tbl Name State Pts DEFAULT off 2 on 19 HP8482A off 12 HP8483A off 10 HP8481D off 21 HP8485A off 22 R8486A off 17 Q8486A off 19 R8486D off 17 HP8487A off 54 0 1 2 3 4 5 6 7 8 9 Figure 6 92 Sensor Table Selected 4 Press Done to complete the process Now enter the frequency of the signal you want to measure as follows 5 Press fErsaueney and the channel Freq softkey to display the Frequency pop up window EPM P Series Peak and Average Power Meters User s Guide 175 6 176 Using 8480 Series Power Sensors Frequenc 100 000 Figure 6 93 Frequency Pop Up Window 6 Use the gt and w keys to select and change the digits to match the frequency of the signal you want to measure 7 Press GHz or MHZ as required to complete the entry Now make the measurement 8 Connect the power sensor to the signal to be measured 9 The corrected measurement result is displayed If the measurement frequency does not correspond directly to a frequency in the sensor calibration table the power meter calculates the calibration factor using linear interpolation If you enter a frequency outside the frequency range defined i
52. A A 200 00MHz 4525n A 45 25dBm Y Hh 20 000dBm Figure 2 10 Frequency Dependent Offset Configured EPM P Series Peak and Average Power Meters User s Guide 45 2 46 General Power Meter Functions If the measurement frequency does not correspond directly to a frequency in the sensor calibration table if selected and the frequency dependent offset table being used the power meter calculates the calibration factor and offset using linear interpolation If you enter a frequency outside the frequency range defined in the sensor calibration table or the frequency dependent offset table the power meter uses the highest or lowest frequency point in the appropriate table to set the calibration factor and offset Editing Frequency Dependent Offset Tables There are ten frequency dependent offset tables named CUSTOM_A through CUSTOM_J They do not contain any data when the power meter is shipped from the factory You cannot delete any of the 10 existing frequency dependent offset tables or create any additional tables However you can enter values into the 10 existing tables Each frequency dependent offset table can contain a maximum of 80 frequency points To view the frequency dependent offset tables currently stored in the power meter press is Tables Freq Dep Offset The Offset Tbls screen is displayed as shown in Figure 2 8 on page 44 Creating frequency dependent offset tables requires the following steps
53. A These waveguide power sensors have two connectors Use the 08486A N Type connector to calibrate the power meter V8486A W8486A R8486D 08486D 8481B These power sensors are configured with an attenuator Prior to 8482B calibration this attenuator must be removed Replace the attenuator before making measurements EPM P Series Peak and Average Power Meters User s Guide 171 6 172 Using 8480 Series Power Sensors Table 6 22 8480 Series Connection Requirements Sensor Connection requirements 8485A This power sensor requires an APC 3 5 f to 50 Q m N Type adapter 08485 60005 to connect to the POWER REF Remove this adapter before making measurements 8485D Prior to calibration an Agilent 11708A 30 dB reference attenuator and an APC 3 5 f to 50 Q m N Type adapter 08485 60005 should be connected between the power sensor and the POWER REF Remove this attenuator and adaptor before making measurements 8487A This sensor requires an APC 2 4 f to 50 Q m N Type adapter 08487 60001 to connect to the POWER REF Remove this adapter before making measurements 8487D Prior to calibration an Agilent 11708A 30 dB reference attenuator and an APC 2 4 f to 50 Q m N Type adapter 08487 60001 should be connected between the power sensor and the Power Ref Remove this adapter before making measurements Example To make a measurement on channel A with a power sensor which has a reference calibration factor of
54. Agilent EPM P Series Peak and Average Power Meters User s Guide 2 Agilent Technologies Notices Agilent Technologies Inc 2000 2010 No part of this manual may be reproduced in any form or by any means including electronic storage and retrieval or transla tion into a foreign language without prior agreement and written consent from Agi lent Technologies Inc as governed by United States and international copyright laws Manual Part Number E4416 90023 Edition Fifth Edition April 23 2010 Printed in Malaysia Agilent Technologies Inc 3501 Stevens Creek Blvd Santa Clara CA 95052 USA Warranty The material contained in this docu ment is provided as is and is sub ject to being changed without notice in future editions Further to the max imum extent permitted by applicable law Agilent disclaims all warranties either express or implied with regard to this manual and any information contained herein including but not limited to the implied warranties of merchantability and fitness for a par ticular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connec tion with the furnishing use or per formance of this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the sep arate ag
55. An invalid string was received Check to see if you have enclosed the character string in single or double quotes For example MEM CLE CUSTOM_1 158 String data not allowed A character string was received but is not allowed for the command Check the list of parameters to verify that you have used a valid parameter type For example LIM STAT ON 161 Invalid block data A block data element was expected but was invalid for some reason For example DDT 15FET The 5 in the string indicates that 5 characters should follow whereas in this example there are only 3 168 Block data not allowed A legal block data element was encountered but not allowed by the power meter at this point For example SYST LANG 15FETC 178 Expression data not allowed A legal expression data was encountered but not allowed by the power meter at this point For example SYST LANG 5 2 211 Trigger ignored Indicates that lt GET gt or TRG or TRIG IMM was received and recognized by the device but was ignored because the power meter was not in the wait for trigger state EPM P Series Peak and Average Power Meters User s Guide 217 8 218 Maintenance 213 Init ignored Indicates that a request for a measurement initiation was ignored as the power meter was already initiated For example INIT CONT ON INIT 214 Trigger deadlock TRIG SOUR was set to HOLD
56. Auto Level Slope rising Delay 0 EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Parameters Setting Holdoff 0 Hysteresis 0 0 dB Output Off EA The display is setup for a single numeric and a dual numeric window Upper Window Single Numeric Lower Window Dual Numeric The single numeric window is configured to display the average power The dual numeric window is configured to show the peak power and the peak to average ratio Ea Upper Window Gate 1 Average measurement Lower Window Upper Line Gate 1 Peak measurement Lower Line Gate 1 Peak to average measurement TIP If you require faster measurement speed set the Filter to MAN Channel Setup screen and reduce the filter value Conversely if you are measuring low power levels and want to improve the stability of the measurements increase the filter value Increasing the filter value however reduces the measurement speed The maximum power level for the E9320 E Series power sensors is 20 dBm Attenuation may be required when directly measuring GSM transmitter output Enter the value of the attenuation as an Offset A Meas Select to correct the displayed measurement result EPM P Series Peak and Average Power Meters User s Guide 137 3 138 Using E9320 E Series Power Sensors Measuring cdma2000 The cdma2000 configuration is available by pressing E and u
57. Display TIP To zoom in on a gate first adjust the Start parameter to place the gate markers at the left of the display Next reduce the value of the Length parameter Readjust the Start parameter as required As the marker timings are related to the trigger point they remain in a fixed position on the trace Adjustments to the gate markers require the Gate Ctrl menu EPM P Series Peak and Average Power Meters User s Guide 107 3 Using E9320 E Series Power Sensors 108 Gate Control Press Gate Control to display the Gate Ctrl screen and continue with the gate setup Repeat this process until you have configured all the gates required Display Now configure the display to show the measurement results you require by pressing ie Refer to Step 4 The Display Setup on page 96 for more Displa information TIP If you choose to configure one of the windows with a trace display you can quickly redisplay the Gate Ctrl screen by pressing 0 5 LCL TLK ERR Ail 2 7 Time 200ns Avg 9 83dBm 2Time 366us 9 66dBm Pk Avg 0 17dB Figure 3 65 Bluetooth Signal with Markers Shown Measurement Setup When you have configured both windows with the required displays set up the measurements as shown in Step 5 The Measurement Setup on page 98 EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Measurement Example This measurement example configures th
58. EPM P Series power meters are capable of storing 20 sensor calibration tables each containing up to 80 frequency points The power meter is supplied with a set of 9 predefined sensor calibration tables plus a 100 default table The data in these tables is based on statistical averages for a range of Agilent Technologies power sensors Your own sensor will most likely differ from the typical to some degree If you require best accuracy create a custom table for each sensor you use as shown in Editing Generating Sensor Calibration Tables on page 178 Using power sensor tables require the following steps 1 Choose the sensor table for the power sensor you are using and allocate it to the associated power meter channel 2 Zero and calibrate the power meter The reference calibration factor used during the calibration is automatically set by the power meter from the sensor calibration table 3 Specify the frequency of the signal you want to measure The calibration factor is automatically selected by the power meter from the sensor calibration table 4 Make the measurement 174 EPM P Series Peak and Average Power Meters User s Guide Using 8480 Series Power Sensors 6 Procedure First select the table for the sensor you are using as follows 1 Press pen Tables Sensor Cal Tables to display the Sensor Tbls screen The selected sensor table is indicated in the State column as shown in Figure 6 92 The sensors are listed 1 to
59. M P Series Peak and Average Power Meters User s Guide Using E9300 E Series Power Sensors 4 Accuracy The value of 12 dBm lies in the lower range of the E Series E9300 power sensor In autorange mode AUTO the power meter determines the average power level is below 10 dBm and selects the low power path However the peak amplitude of 6 dBm is beyond the specified square law response range of the low power path diodes The high power path 10 dBm to 20 dBm should be used to ensure a more accurate measurement of this signal However range holding in UPPER the high power path for a more accurate measurement results in considerably more filtering Speed and Averaging The same signal also requires that consideration is given to measurement speed As shown above in autorange mode the power meter selects the low power path in the E Series E9300 power sensor With auto averaging also configured minimal filtering is applied Values of 1 to 4 for average power levels above 20 dBm are used in the low power path Refer to E9300 E Series Auto Averaging Settings on page 143 If the range is held in UPPER for more accuracy the measurement is slower More filtering is applied due to the increase in noise susceptibility at the less sensitive area of the high power path Values of 1 to 128 for average power levels less than 10 dBm are used Again refer to E9300 E Series Auto Averaging Settings on page 143 Ma
60. Meter Maximum 019 000 Figure 3 55 Meter Maximum Pop Up e Similarly press Min and use the fe and keys to configure the required value in the Meter Minimum pop up window Press dBm mW uW or nW to complete the entry EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors D ay 010 000 Figure 3 56 Meter Minimum Pop Up TIP If you have selected linear scaling for the analog measurement and the units you require are outwith the range of the displayed menu an additional menu is available When the pop up is displayed you can press to access the increment decrement multiplier menu Use the Increment Multiplier or to display the required units Press the units softkey XW to complete the entry ar n Increment Press these keys to select the units required Multiplier Decrement Multiplier Cancel EPM P Series Peak and Average Power Meters User s Guide 101 3 3 102 Using E9320 E Series Power Sensors Trace Format Configure a measurement displayed in Trace format as follows e Press and use the or keys to select the trace window e Press Es Trace Setup to display the Trace Setup menu LCL TLK Channel Trace Start 0 000 s Length 100 0us Max 20 000dBm Min 50 000dBm Units dBm Figure 3 57 Trace Display in Lower Window e Use the fe and keys to select the required parameter Press Change and
61. Now enter the frequency of the signal you want to measure as follows 5 Press fFreaueney and the channel Freq softkey to display the Frequency pop up window Frequenc Figure 7 105Frequency Pop Up Window EPM P Series Peak and Average Power Meters User s Guide Using N8480 Series Power Sensors 7 6 Use the and keys to select and change the digits to match the frequency of the signal you want to measure 7 Press GHz or MHz as required to complete the entry Now make the measurement 8 Connect the power sensor to the signal to be measured 9 The corrected measurement result is displayed If the measurement frequency does not correspond directly to a frequency in the sensor calibration table the power meter calculates the calibration factor using linear interpolation If you enter a frequency outside the frequency range defined in the sensor calibration table the power meter uses the highest or lowest frequency point in the sensor calibration table to set the calibration factor When Single Numeric display mode is chosen the frequency you entered and the sensor table identifier is displayed in the upper window Also pressing fFreaueney displays the frequency you entered and calibration factor for each channel derived from the selected sensor tables LCL TLK A 13 5GHz Freq 13 500GHz 1 Q 28aam 0 28dBm Y ba 20 000dBm Figure 7 106Frequency Calibration Table Display EPM
62. ON and the sensor currently connected to channel B has not been calibrated then any command which would normally return a measurement result for example FETC READ or MEAS will generate this error message 230 Data corrupt or stale Please calibrate Channel B When CAL 1 2 RCAL is set to ON and the sensor currently connected to channel B has not been calibrated then any command which would normally return a measurement result for example FETC READ or MEAS will generate this error message EPM P Series Peak and Average Power Meters User s Guide 219 8 220 Maintenance 231 Data questionable CAL ERROR Power meter calibration failed The most likely cause is attempting to calibrate without applying a 1 mW power to the power sensor 231 Data questionable CAL ERROR ChA Power meter calibration failed on channel A The most likely cause is attempting to calibrate without applying a 1 mW power to the power sensor 231 Data questionable CAL ERROR ChB Power meter calibration failed on channel B The most likely cause is attempting to calibrate without applying a 1 mW power to the power sensor 231 Data questionable Input Overload The power input to Channel A exceeds the power sensor s maximum range 231 Data questionable Input Overload ChA The power input to Channel A exceeds the power sensor s maximum range 231 Data questionable Input Overload ChB The power
63. OWER REF output 8 Press the channel Cal softkey to start the calibration routine The message and wait symbol are displayed Following calibration ensure you remove reattach any attenuators or adaptors before making a measurement V8486A and W8486A sensors V8486A and W8486A sensors require that you manually select D type linearity correction Subsequent connection of another A type sensor will result in a warning message BUNGE Inge ests BUEN eae You must then manually select A type correction Select the linearity to be applied as follows Press ables and press the channel Linearity softkey to highlight Atyp or Dtyp Linearity can be manually configured for each channel For example to set D type linearity on channel B EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Press ama f Tables and press B Linearity to highlight Dtyp Table 2 1 Power Sensor Connection Requirements Sensor Connection requirements 8481A 8481H 8482A 8482H N8481A N8481H N8482A N8482H E4412A E930xA E930xH E9304 H18 E9304 H19 E932xA 8481D 8484A 8483A R8486A 08486A V8486A W8486A R8486D 08486D 8481B 8482B N8481B N8481B E930xB These power sensors connect directly to the reference calibrator Prior to the power meter calibration an Agilent 11708A 30 dB reference attenuator should be connected between the power sensor and the reference calibrator Remove th
64. P Series Peak and Average Power Meters User s Guide 199 7 200 Using N8480 Series Power Sensors Editing Generating Sensor Calibration Tables Predefined sensor calbration factor table stored in power meter is not applicable for Agilent N8480 Series power sensors with Option CFT Therefore users are required to create a new sensor calibration table for the sensors when a sensor calibration table is needed To help achieve the best accuracy in your measurement you can enter the values supplied for the sensors you are using by editing the installed sensor calibration tables or by generating your own custom tables While you cannot delete any of the 20 sensor calibration tables you can edit or delete their contents If you need another table you should edit and re name one of the tables A maximum of 80 frequency calibration factor data points can be stored in each table You can view the installed sensor tables by pressing Py Tables Sensor Cal Tables to display the Sensor Tbls screen as shown in Figure 7 104 These power sensors are Table 7 26 Installed Power Sensor Models Table Sensor model Table Sensor model 0 DEFAULT 5 8485A 1 8481A 6 R8486A 2 8482A 7 08486A 3 8483A 8 R8486D 4 8481D 9 8487A 1 DEFAULT is a sensor calibration table where the reference calibration factor and calibration factors are 100 This sensor calibration table can be used during the performance testing of the power meter 2 The Agilent
65. Peak Feed 1 Gate2 eeey g Pk to Avg 2 Feed 2 N p4 e Peak 5 Feed 1 7 Average Hd Gate3 gy 2 Pk to Avg N Feed 2 se gt gt Peak Feed 1 Gate 4 Average Pk to Avg Feed 2 Figure 3 37 Twelve Measurements per Channel The EPMP power meters cannot display all 12 or 24 measurements simultaneously However up to four measurements or a combination of measurements and traces can be shown on the display Any of the four measurement display lines can show any of the measurement results from any of the four gates allowing you complete control of the displayed information Each displayed line has a measurement feed Each measurement feed has two independent inputs Feed 1 and Feed 2 The two Feeds 1 and 2 can carry any of the 12 measurement results from the 4 gates 24 measurements from eight gates in the dual channel E4417A Only Feed 1 can be displayed in Single Mode In Combined Mode Feed 1 Feed 2 or Feed 1 Feed 2 can be displayed 80 EPM P Series Peak and Average Power Meters User s Guide Gate 1 Gate 2 Gate 3 Gate 4 Peak Average Pk to Avg Peak Average Pk to Avg Peak Average Pk to Avg o gt Peak Average a a Pk to Avg 12 24 Measurement Highway Feed 1 Feed 2 Feed 1 Feed 2 Feed 2 Feed 2 Using E9320 E Series Power Sensors 3 Measurement Feeds single or combined Single Feed 1 Feed 2 Combined Feed 1 Feed 2
66. Please refer to Returning Your Power Meter for Service on page 230 Replacing the Power Line Fuse 1 Remove the power cord from the power meter 2 Slide the fuse holder assembly from the rear panel as shown in Figure 8 112 3 Install the correct fuse in the In line position as shown in Figure 8 112 A spare fuse can be stored in the fuse holder assembly 4 Replace the fuse holder assembly in the rear panel EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 In line fuse Spare fuse Figure 8 112Replacing the Fuse EPM P Series Peak and Average Power Meters User s Guide 225 8 Maintenance Contacting Agilent Technologies 226 This section details what to do if you have a problem with your power meter If you have a problem with your power meter first refer to the section Before calling Agilent Technologies This chapter contains a checklist that will help identify some of the most common problems If you wish to contact Agilent Technologies about any aspect of the power meter from service problems to ordering information refer to see Sales and Service Offices on page 229 If you wish to return the power meter to Agilent Technologies refer to see Returning Your Power Meter for Service on page 230 Before calling Agilent Technologies Before calling Agilent Technologies or returning the power meter for service please make the checks listed in see Check the Bas
67. Power Sensors 7 The N8480 Series power sensors consist of four sensor model types with respective power range e A models 35 dBm to 20 dBm e N8481A N8482A N8485A N8487A and N8488A e B models 5 dBm to 44 dBm e N8481B and N8482B e H models 15 dBm to 35 dBm e N8481H and N8482H e Waveguide models 35 dBm to 20 dBm e N8486AQ and N8486AR Please refer to the documentation supplied with your Agilent N8480 Series power sensors for specification and calibration information The calibration factor table stored in the EEPROM is not applicable for N8480 Series power sensors with Option CFT 2 Recommended for pulse signals measurement with period of more than one second EPM P Series Peak and Average Power Meters User s Guide 187 7 Using N8480 Series Power Sensors Power Meter Configuration 188 Sensor Dynamic Range Lower Range Upper Range The EPM P Series power meters automatically recognize an N8480 Series power sensor when it is connected The averaging settings shown in Figure 7 97 are automatically configured N8481 2 5 7A Maximum Resolution Setting N8486AQ0 AR N8481 2B N8481 2H Sensor Power 1 2 3 4 0 dBm 1 dBm 10 dBm 20 dBm 30 dBm 30 dBm 29 dBm 20 dBm 10 dBm 0 dBm 20dBm Ss Be ee ee ne 2 2 4 32 2 17 dBm 5 2 2 4 32 10dBm lt 22 4 2oce sete ete ee eek a a 2 2 16 256 gt OB cee 2 Foes et ee eee eee Se S D 2 8 128 128 e 10dBm vse Vee
68. R Comite International Special Perturbations Radioelectriques requirements and electromagnetic interference EMI test applications such as the radiated immunity test TEC61000 4 3 DC coupling of the E9304A input allows excellent low frequency coverage However the presence of any dc voltages mixed with the signal has an adverse effect on the accuracy of the power measurement CAUTION The E9304A sensor is DC coupled DC voltages in excess of the maximum value 5 Vdc can damage the sensing diode 152 EPM P Series Peak and Average Power Meters User s Guide Using E9300 E Series Power Sensors 4 Measurement Accuracy and Speed The power meter has no internal ranges The only ranges you can set are those of the E9300 E Series power sensors and other Agilent Technologies E Series power sensors With an E Series E9300 power sensor the range can be set either automatically or manually Use autorange when you are not sure of the power level you are about to measure CAUTION To prevent damage to your sensor do not exceed the power levels specified in the sensor user s guide The E9304A sensor is DC coupled DC voltages in excess of the maximum value 5 Vdc can damage the sensing diode Setting the Range There are two manual settings LOWER and UPPER The LOWER range uses the more sensitive path and the UPPER range uses the attenuated path in the E9300 E Series power sensors Sensor LOWER range UPPER range E9300 1 4A
69. Series Peak and Average Power Meters User s Guide Maintenance 8 Remote Testing To invoke the remote self test the IEEE 488 1 compliant standard command TST is used This command runs a full self test and returns one of the following codes e 0 no tests failed one or more tests failed The remote self test consists of the following tests e ROM checksum e RAM e Lithium Battery e Display Assembly e Calibrator e Measurement Assemblies e Communications Assembly Implicit The communications assembly is tested implicitly in that the command will not be accepted or return a result unless the GPIB interface is functioning correctly Refer to see Test Descriptions on page 210 if you require a description of each individual test When the TST command is executed the screen is cleared As each test takes place the name of the test is listed on the screen While a test is running the message Testing appears beside the name of the test As each stage of the test is completed the message Testing is replaced by either the message Passed or Failed EPM P Series Peak and Average Power Meters User s Guide 209 8 210 Maintenance Test Descriptions This section specifies what is actually checked by each of the tests Some of the tests may only be applicable to one method of invocation for example from the front panel If this is the case it is specified in the test description Most of the
70. Single Feed 1 Feed 2 Combined Feed 1 Feed 2 Single Feed 1 Feed 2 Combined Feed 1 Feed 2 A 1 00mw 4 84 270 004Bm ae 0 00us Ay 30 00am SH Single Feed 1 Feed 2 Combined Feed 1 Feed 2 When selected the trace display should be used only as an indication It is representative of the measurement trace but the resolution is constrained by the limitations of the display You can configure the trace start and length parameters in a similar manner to setting up a gate In addition you can configure the amplitude scaling EPM P Series Peak and Average Power Meters User s Guide 81 3 Using E9320 E Series Power Sensors Configuring a Peak Power Measurement 82 While the EPMP may at first seem complex configuring a measurement and displaying the results are quickly achieved using trace markers or by following a step by step process of numeric data entry Before configuring the measurements you should have some information about the signal you want to measure The following information for example can help you quickly establish stable triggering and reliable measurement data e the Center Frequency CF e the bandwidth of any modulating signal e the expected maximum and minimum power levels e timing information for any pulsed signals You can configure the required measurements using numeric data entry from the keypad or remote int
71. Trace 20 000dBm Trigger Indicator EPM P Series Peak and Average Power Meters User s Guide 97 3 98 Using E9320 E Series Power Sensors Step 5 The Measurement Setup Numeric Format Configure a measurement displayed in Single Numeric or Dual Numeric format as follows e Press and use the or C keys to select the measurement window or measurement line you want to configure e Press Meas Select RMT LSN Lower Window Lower Measurement Chan Gate Meas Feed A H Fendi coda Relative Off 4 8Gd ifim Offset Off saci Figure 3 51 Lower Window Lower Measurement Setup Single Function Measurement e Press Function to select SINGLE e Use the and and Change keys to assign a measurement type to a gate number as required Figure 3 51 shows an average measurement assigned to Gate 1 in the lower measurement line of the lower window The Channel label is disabled as a single channel meter is shown e Press Done to complete the set up and display the measurements results screen e Use the or keys to select the next measurement window or measurement line you want to configure EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Combined Measurement e Press to select COMB e Use the and and Change keys to assign a measurement type to a gate number as required Figure 3 52 shows a Combined Mea
72. Up The highest power you are going to measure is used to determine the value which you should set for the Recorder Output maximum setting For example if you are measuring a power less than 1 mW and greater than 100 mW then set the recorder maximum value to 1 mW Log 50 40 30 20 10 0 Lin 100 W 10 W 1W 100 mW 10 mW 1 mW Log 10 20 30 40 50 60 Lin 100 mW 10 mW 1 mW 100 nW 10 nW 1nW EPM P Series Peak and Average Power Meters User s Guide 63 2 64 General Power Meter Functions TIP If you have selected linear scaling for the analog measurement and the units you require are outwith the range of the displayed menu an additional menu is available When the pop up is displayed you can press to access the increment decrement multiplier menu Use the Incremento Multipliers or Decrement Multiplier to display the required units Press the units softkey XW to complete the entry mW Increment Press these keys to select the units Multiplier lt g Decrement Multiplier Cancel EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Saving and Recalling Power Meter Configurations To reduce repeated setup sequences up to ten power meter configurations can be stored in nonvolatile memory The save recall functions are part of the Sys Inputs menu accessed by pressing the key To save a measurement setup 1 Press E Save Recall to display the
73. able 6 23 Installed Power Sensor Models Table Sensor model Table Sensor model 0 DEFAULT 5 8485A 1 8481A 6 R8486A 2 8482A 7 08486A 3 8483A 8 R8486D 4 8481D 9 8487A 1 DEFAULT is a sensor calibration table where the reference calibration factor and calibration factors are 100 This sensor calibration table can be used during the performance testing of the power meter 2 The Agilent 8482B and Agilent 8482H power sensors use the same data as the Agilent 8482A There are also ten sensor calibration tables named CUSTOM_0 through CUSTOM _9 These tables do not contain any data when the power meter is shipped from the factory 178 EPM P Series Peak and Average Power Meters User s Guide Using 8480 Series Power Sensors 6 Editing or generating power sensor tables requires the following steps 1 Identify and select the sensor table you want to edit or create 2 Rename the table 3 Edit enter the frequency and calibration factor data pairs 4 Save the table Procedure First select the table you want to edit or create as follows 1 Press ical Tables Sensor Cal Tables to display the Sensor Tbls screen RMT TLK Tbl Name State Pts DEFAULT off 2 HP84814 off 19 HP84824 off 12 HP84834 off 10 HP8481D off 21 HP84854 off 22 R8486A off 17 Q8486A off 19 R8486D off 17 HP8487A4 off 54 0 1 2 3 4 5 6 7 8 9 Figure 6 95 Sensor Tbls Screen 2 Choose the table you want to edit using the and keys Press Edit T
74. able to display the Edit Cal screen as shown in Figure 6 96 EPM P Series Peak and Average Power Meters User s Guide 179 6 Using 8480 Series Power Sensors RMT TLK Name Ref CF 100 0 Freq Cal Fac 50 000MH7 100 0 100 000MHz 95 8 2 000GHz 99 0 3 000GHz 98 6 4 000GHz 96 0 5 000GHzZ 97 7 6 000GHZ 97 4 7 000GHz 97 1 Figure 6 96 Edit Cal Screen A frequency in the range of 0 001 MHz to 999 999 GHz can be entered A calibration factor in the range of 1 to 150 can be entered The following rules apply to naming sensor calibration tables The name must consist of no more than 12 characters e All characters must be upper or lower case alphabetic characters or numeric 0 9 or an underscore _ e No other characters are allowed e No spaces are allowed in the name Now change the title of the table as follows 3 Highlight the table title using the and keys Press GHaNB l and use the fe gt and keys to select and change the characters create the name you want to use e Pressing Insert Char adds a new character to the right of the selected character e Pressing Delete Char removes the selected character Press Enter to complete the entry 180 EPM P Series Peak and Average Power Meters User s Guide Using 8480 Series Power Sensors 6 Enter the reference calibration factor as follows 4 Using the and keys select the reference calibration factor value and press
75. actor pop up window is displayed as shown in Figure 7 102 Cal Factor ap ay 098 4 Figure 7 102Calibration Factor Pop Up Window Modify this see below as required e Use or to highlight the digit you want to change e Use or to increment or decrement the highlighted digit Confirm your choice by pressing Now make the measurement as follows 11 Connect the power sensor to the signal to be measured 12 The corrected measurement result is displayed When no sensor tables are selected and Single Numeric display mode is chosen the calibration factor used for the measurement is displayed in the upper window as shown in Figure 7 103 EPM P Series Peak and Average Power Meters User s Guide 195 7 196 Using N8480 Series Power Sensors Contrast Calibration Factor 21 8BaBm A 21 85dBm Yy ba 20 000dBm Figure 7 103Calibration Factor Displayed Example To make a measurement on channel A with a power sensor which has a reference calibration factor of 99 8 and a calibration factor of 97 6 at the measurement frequency Disconnect the power sensor from any signal source Press e s Ref CF Use the e gt and keys to select and change the digits to display 99 8 in the pop up window Complete the entry by pressing Press More and the channel Zero softkey to zero the channel When the zeroing routine is complete connect the power sensor to the POWER REF output Press the cha
76. ailing edge The time delay for this process 4 us with Video B W set to Off 8 us using High Med and Low settings may impair your measurement By using the upper or lower settings to hold the sensor in a specific range the switching delay is removed Filter The power meter uses a digital filter to average power readings The filtering is applied only to an average measurement in the selected gates when in normal mode or to the average only mode measurement The number of readings averaged can range from 1 to 1024 This filter is used to reduce noise obtain the desired resolution and to reduce the jitter in the measurement results Increasing the value of the filter length reduces measurement noise but increases the time to make the measurement Offset If your test setup has known gains or losses you can remove these from the displayed measurement results by setting up an Offset as described in Setting Offsets on page 39 Frequency The E9320 E Series power sensors are fully corrected for calibration factor and frequency dependent linearity errors Correction data is downloaded to the meter when a sensor is connected It is important for best accuracy to enter the frequency of the RF signal you are measuring TIP Entering the frequency especially when making comparative measurements between signals greatly reduces measurement uncertainty EPM P Series Peak and Average Power Meters User s Guide 85 3 86 Using E9320 E
77. ak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Table 3 14 EDGE Configurations Parameters Setting a The E9321A and E9325A sensors are best suited as they have the optimum dynamic range and low level stability in the 300 kHz bandwidth After a Preset Video B W defaults to High for all sensors Sensor Mode Normal Range AUTO Filter AUTO Offset Off Frequency 900 MHz FDO Table Off Video Avg Off Video B W E9321A E9325A High E9322A E9326A Med E9323A E9327A Low Step Detect On Gates Only one gate is set up starting 20 us after the trigger for a duration of 520 us Gate1 Start 20 us Length 520 us Gate2 Start 0 Length 0 Gate3 Start 0 Length 0 Gate4 Start 0 Length 0 The trigger is configured for 20 dBm on a rising edge A trigger hold off is also setup for 4275 us disabling the trigger for 7 5 time slots ensuring the same time slot is measured in the next frame Also trigger hysteresis is included to prevent small power transitions during the burst causing re triggering ti Acqn Cont Trig Source Int internal Level 20 dBm EPM P Series Peak and Average Power Meters User s Guide 119 3 Using E9320 E Series Power Sensors Parameters Setting Mode Normal Slope rising Delay 0 Holdoff 4275 us Hysteresis 0 0 dB Output Off Meas
78. ale Plug 9 pin D subminiature connector Accepts a TTL signal for initiating measurements BNC connector Outputs a TTL signal for synchronizing with external equipment BNC connector Binding post accepts 4 mm plug or bare wire connection Input Voltage Range 85 to 264 Vac automatic selection Input Frequency Range 47 to 440 Hz Power Requirement 50 VA 14 Watts EPM P Series Peak and Average Power Meters User s Guide 239 9 Specifications and Characteristics Remote Programming Interface GPIB interface operates to IEEE 488 2 and IEC 625 RS 232 and RS 422 interfaces are supplied as standard Command Language SCPI standard interface commands GPIB Compatibility SH1 AH1 T6 TEO L4 LEO SR1 RL1 PP1 DC1 DT1 CO Physical Specifications Dimensions The following dimensions exclude front and rear panel protrusions 212 6 mm W x 88 5 mm H x 348 3 mm D 8 5 in x 3 5 in x 13 7 in Weight Net E4416A 4 0 Kg 8 8 lb approximately E4417A 4 1 Kg 9 0 lb approximately Weight Shipping E4416A 7 9 Kg 17 4 lb approximately E4417A 8 0 Kg 17 6 lb approximately 240 EPM P Series Peak and Average Power Meters User s Guide Specifications and Characteristics 9 Environmental Specifications Operating Environment Temperature 0 C to 55 C Maximum Humidity 95 at 40 C non condensing Minimum Humidity 15 at 40 C Maximum Altitude 3000 meters 9840 feet Storage Conditions Storage Tempera
79. ariety of reasons such as when e an error or warning occurs e a confirmation is required e you are required to wait while the power meter carries out a procedure e you are required to select an entry from a list e you are required to enter an alphanumeric value Warning Symbol The warning symbol is displayed either directly in the measurement window or in a pop up window when such an event occurs A pop up window is displayed for approximately two seconds The text in the pop up window gives details of the warning type This symbol may also appear on a measurement window for example to indicate that a power sensor is not connected Confirmation Pop Up This pop up window is displayed when you are required to press Confirm to verify your previous OK to preset P Please Confirm selection For example prior to Preset a Tocal Preset being carried out EPM P Series Peak and Average Power Meters User s Guide 17 1 Introduction Wait Symbol The wait symbol is displayed when the power meter is carrying out a procedure but no action is required from you The symbol appears in a pop up window It may appear for example during zeroing or calibration One of Many Entry Pop Up This pop up window is displayed when you are required to select an entry using and 0 from the list Aa Limits OVER Configuration Conflict Pop Up This pop up window is displayed ATTENTION PLEASE when you make
80. ate the power level The chopper amplifier technique provides noise immunity and allows large physical distances between power sensor and power meter Agilent 11730 Series cables available up to 61 metres Additional averaging helps reduce noise susceptibility Achieving Stable Results with TDMA Signals The averaging settings in the power meter are designed to reduce noise when measuring continuous wave CW signals Initial measurement of a pulsed signal may appear unstable with jitter on the less significant displayed digits With pulsed signals the averaging period must be increased to allow measurement over many cycles of the pulsed signal Procedure Set the averaging as follows 1 Press to display the Channel Setup screen In addition on dual channel meters you may need to press Channel to display the Channel Setup for the channel you want to use 2 If Filter MAN is not configured use or to highlight the Filter setting 3 Repeatedly press Change to scroll through the choices AUTO MAN and OFF Choose MAN 4 With MAN selected use to select the filter length value and press Change EPM P Series Peak and Average Power Meters User s Guide Using E9300 E Series Power Sensors 4 5 Use e and 0 to select and change the values as required Confirm your entry by pressing Enter You can delete any changes and return to the Channel Setup simply by pressing Cancel 6 Press Done to complete the proce
81. be disabled and reenabled by pressing Eii Rel Offset to select Off is displayed in the window when the measurement line it is applied to is displayed see Figure 2 3 RMT TLK A 500Mkz Rel 4 8405 ts Offset A 50 0MHz Rel On 81 44e5 Figure 2 3 Rel Indicator EPM P Series Peak and Average Power Meters User s Guide 37 2 General Power Meter Functions NOTE The symbol is not displayed when the associated measurement is displayed in Dual Numeric or Analog format 38 EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Setting Offsets The power meter can be configured to compensate for a signal loss or gain in your test setup The power meter allows you to apply offsets at three different points in the measurement path as shown in Figure 2 4 Channel Functions Window Functions Upper Window Lower Window Channel B gt amp z D a E S pe 5 a a mee eee ee mmi Figure 2 4 Simplified Measurement Path Applying a Channel Offset or a Frequency Dependent Offset allows you to compensate each channel individually prior to any mathematical functions An overall offset can then be applied if required using the Display Offset Setting Channel Offsets This gain or loss is applied to the measured power before any mathematical functions display offsets or relative functions are included Offsets are entered in dB The allowable range of val
82. be set either automatically or manually There are two manual settings LOWER and UPPER The lower range is more sensitive than the higher range Use autorange when you are not sure of the power level you will be measuring Use a manually configured range when you want to ensure there is no range switching during the measurement The default is AUTO Procedure Set the range as follows 1 Press to display the Channel Setup screen The current Range setting is displayed 2 Use the and keys to select the Range setting RMT TLK Channel Setup Sensor Mode Normal Range EUKO Filter AUTO 2 Duty Cycle Of LEGGO Offset Off ggggii Frequency 50 000MHz CF Table amp ff FDO Table Off Video Avg Off 4 amp 4 Video B W Med Step Detect On Figure 2 22 Channel Setup Range 3 Press Change and choose AUTO LOWER or UPPER as required 4 Press Done to confirm your choice EPM P Series Peak and Average Power Meters User s Guide 59 2 General Power Meter Functions Scaling the Analog Display 60 Configure a measurement displayed in Analog format as follows 1 Press Meee 2 Use the and keys to select the analog measurement window 3 Press Anlg Mtr Scaling Al 6 15dBm Avg Y bo 20 000dBm Figure 2 23 Analog Display in Lower Window The M and Mi scale values are shown on the analog display and adjacent to the softkey labels 4 Press Max and use the gt an
83. cee ee eee eaa a Minimum Sensor Power Figure 7 97 N8480 Series Auto Averaging Settings These values are valid only for the power meter channel connected to the Agilent N8480 Series power sensors and only while the sensor is connected Averaging settings can also be manually configured EPM P Series Peak and Average Power Meters User s Guide Using N8480 Series Power Sensors 7 Default Channel Setup Figure 7 98 shows the Channel Setup configured automatically Presetting returns the power meter to this configuration Any changes made to the Channel Setup are retained after a power cycle RMT TLK Channel Setup Sensor Mode Range Filter Duty Cycle Offset Frequency CF Table FDO Table Video Avg Video B W Step Detect Change ANG priy AUTO AUTO 268 orf LBE off O BEHTG 50 000MHz Eg off Gt Done Gti On 32 bes gt Trace Setep Figure 7 98 N8480 Series Sensor excluding Option CFT Default Channel Setup RMT TLK Please Zero Channel Setup Sensor Mode Range Filter Duty Cycle Offset Cal Fac CF Table FDO Table Video Avg Video B W Step Detect AYG only RUTO AUTO Off LOBE Off O BGHHE 100 0 DEFAULT off Qi 4 cHE On Figure 7 99 N8480 Series Sensor with Option CFT Default Channel Setup EPM P Series Peak and Average Power Meters User s Guide 189 7 Using N8480 Series Power Sensors Measurement Accuracy 190 N
84. configured to measure the average power in a 520 us period 20 us after triggering The display Figure 3 68 is configured to show the average power in the lower window in numeric format while the upper window shows the power trace starting 40 us before the trigger Table 3 13 shows the configuration RMT TLK Disp Form Type Resoltiog i284 900 0MHz A nits y 9 5 1 Anky Mite Sealing J I dBm Figure 3 68 GSM Measurement Display EPM P Series Peak and Average Power Meters User s Guide 115 3 Using E9320 E Series Power Sensors Table 3 13 GSM900 Configurations Parameters Setting Channel The E9321A and E9325A sensors are best suited as they have the optimum dynamic range and low level stability in the 300 kHz bandwidth After a Preset Video B W defaults to High for all sensors Sensor Mode Normal Range AUTO Filter AUTO Offset Off Frequency 900 MHz FDO Table Off Video Avg Off Video B W E9321A E9325A High E9322A E9326A Med E9323A E9327A Low Step Detect On Gates Only one gate is set up starting 20 us after the trigger for a duration of 520 us Gate1 Start 20 us Length 520 us Gate2 Start 0 Length 0 Gate3 Start 0 Length 0 Gate4 Start 0 Length 0 Trigger The trigger is configured for 20 dBm on a rising edge A trigger hold off is also setup for 4275 us disabling the trigger for 7 5 time sl
85. curacy 145 Measuring Spread Spectrum and Multitone Signals 147 CDMA Signal Measurements 148 Multitone Signal Measurements 149 Measuring TDMA Signals 150 Power Meter and Sensor Operation 150 Achieving Stable Results with TDMA Signals 150 Achieving Stable Results with GSM Signals 151 Electromagnetic Compatibility EMC Measurements 152 Measurement Accuracy and Speed 153 Setting the Range 153 Measurement Considerations 154 5 Using E4410 E Series Power Sensors Introduction 158 Power Meter Configuration 159 Default Channel Setup 160 Measurement Accuracy 161 6 Using 8480 Series Power Sensors Introduction 164 Power Meter Configuration 165 Default Channel Setup 165 Measurement Accuracy 167 Frequency Specific Calibration Factors 168 Sensor Calibration Tables 174 Editing Generating Sensor Calibration Tables 178 Preinstalled Calibration Table Contents 182 7 Using N8480 Series Power Sensors Introduction 186 EPM P Series Peak and Average Power Meters User s Guide xi Power Meter Configuration 188 Default Channel Setup 189 Measurement Accuracy 190 N8480 Series Power Sensors excluding Option CFT 190 N8480 Series Power Sensors with Option CFT 192 Frequency Specific Calibration Factors 193 Sensor Calibration Tables 197 Editing Generating Sensor Calibration Tables 200 8 Maintenance Self Test 206 Power On Self Test 206 Front Panel Selection of Self Tests 207 Remote Testing 209 Test Descriptions 210 Error Messages 213 Introduction 213 Error Me
86. d keys to configure the required value in the Meter Maximum pop up window Press dBm mW uW or nW to complete the entry 4p S o1 o00 Figure 2 24 Meter Maximum Pop Up EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 5 Similarly press Min and use the fe and keys to configure the required value in the Meter Minimum pop up window Press dBm mW uW or nW to complete the entry Meter Minimum 010 000 Figure 2 25 Meter Minimum Pop Up TIP If you have selected linear scaling for the analog measurement and the units you require are outwith the range of the displayed menu an additional menu is available When the pop up is displayed you can press to access the increment decrement multiplier menu Use the Increment Multiplier or Decrement Multiplier to display the required units Press the units softkey W to complete the entry mW Increment Press the keys to select the units required Multiplier Decrement Multiplier lt 4 Cancel EPM P Series Peak and Average Power Meters User s Guide 61 2 General Power Meter Functions Recorder Output 62 The rear panel Recorder Output connectors A and B produce a DC voltage that corresponds to the power level in Watts of the channel depending on the measurement mode This DC voltage ranges from 0 to 1 Vdc The output impedance is typically 1 kW Channel and display offsets
87. d measurement accuracy This section describes making average power measurements using the E9300 E Series power sensors Making a measurement requires the following steps 1 Zero and calibrate the power meter sensor combination 2 Set the frequency for the signal you want to measure 3 Make the measurement Table 4 21 Power Sensor Connection Requirements Sensor Connection requirements E9300A These power sensors connect directly to the POWER REF E9300H E9301A E9301H E9304A E9300B These power sensors are configured with an attenuator Prior to calibration this E9301B attenuator must be removed Replace the attenuator before making measurements Procedure First zero and calibrate the power meter sensor combination 1 Ensure the power sensor is disconnected from any signal source 2 Press and the channel Zero softkey to zero the channel The message and wait symbol are displayed 3 Connect the power sensor to the POWER REF output using the connection method specified in Table 4 21 on page 145 EPM P Series Peak and Average Power Meters User s Guide 145 4 146 Using E9300 E Series Power Sensors 4 Press the channel Cal softkey to start the calibration routine The message and wait symbol are displayed TIP You can reduce the steps required to carry out the zero and calibration procedure as follows e Connect the power sensor to the POWER REF output Press __ ana ROE For dual channel meters pre
88. dB 200 dB 180 dB 60 dB 120 dB dBm 230 dBm 150 dBm 90 dBm 90 dBm 10 0 Z 100 0 a 100 0 M 100 0 p Ww 100 000 XW 1 000 aW 1 000 MW 1 000 pW EPM P Series Peak and Average Power Meters User s Guide 53 2 2 General Power Meter Functions Procedure Set the limits as follows 1 Press fsa J Limits The current setting of the maximum and minimum limits for the selected measurement line are displayed under the Max and Min softkeys respectively 2 Use the and keys to select the measurement line you want to configure 3 Change these settings by pressing Max or Min and use the fe gt and keys to set the required values in the pop up windows Complete the entry by pressing the required power unit softkey Maximum Limit 099 000 Figure 2 16 Setting Maximum Limit 4 To enable limit checking press Limits to select On 5 Repeat this process for each required measurement line Limits can be disabled and reenabled simply by pressing Limits Off On 54 EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 TTL outputs The limits can also be set to output a TTL logic level at the rear panel Rmt I O port when the predefined limits are exceeded You can switch the rear panel TTL outputs on or off set the TTL output level to active high or low and determine whether the TTL output represents an over limit condition under limit condition or both Any two of
89. dow Dual Numeric Meas The single numeric window is configured to display the average power The dual numeric window is configured to show the peak power and the peak to average ratio Upper Window Gate 1 Average measurement Lower Window Upper Line Gate 1 Average measurement Lower Line Gate 1 Ppeak to average measurement TIP If you require faster measurement speed set the Filter to MAN Channel Setup screen and reduce the filter value Conversely if you are measuring low power levels and want to improve the stability of the measurements increase the filter value Increasing the filter value however reduces the measurement speed The maximum power level for the E9320 E Series power sensors is 20 dBm Attenuation may be required when directly measuring GSM transmitter output Enter the value of the attenuation as an Offset fsa J Meas Select to correct the displayed measurement result EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Measuring W CDMA The W CDMA configuration is available by pressing and using the and keys to select W CDMA Pressing Confirm completes the process The preinstalled setup configures the power meter for a continuous power measurement on a W CDMA signal Peak and peak to average power measurements are made over a defined and statistically valid number of samples With gated 10 ms measurements corresponding to 20
90. dure You should also ensure the filter is not reset when a step increase or decrease in power is detected by switching the step detection off Procedure Switch off step detection as follows Channel 1 Press to display the Channel Setup In addition on dual channel meters you may need to press Channel to display the Channel Setup for the channel you want to use 2 If Step Detect Off is not configured use or to highlight the Step Detect setting 3 Press Change to select Off 4 Press Done to complete the procedure Achieving Stable Results with GSM Signals Signals with a pulse repetition frequency PRF close to a multiple or sub multiple of the 440 Hz chopper amplifier signal generate a beat note at a frequency between the PRF and 440 Hz Control over the filter settings is again required to obtain stable results TIP The PRF of a GSM signal is approximately 217 Hz and thus requires more averaging than most other TDMA signals To achieve a stable measurement use the filter setting procedures to set the Length Experimentally a Length setting of 148 gives optimum results although settings in the order of 31 or 32 give acceptable results if a faster measurement is required EPM P Series Peak and Average Power Meters User s Guide 151 4 Using E9300 E Series Power Sensors Electromagnetic Compatibility EMC Measurements The low frequency range of the E9304A make it the ideal choice for making EMC measurements to CISP
91. e from the pop up Press Enter to confirm your choice EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 TTL Limits lt EITHER Figure 2 20 TTL Limits Pop Up 6 You can choose a high or low level TTL output to represent a limits failure Press Fail O P to select High or Low to set a logical 1 or logical 0 for a limits failure Checking for Limit Failures Limit failures are displayed in the appropriate field in the measurement window on the power meter s display as shown in Figure 2 21 21 59dBm Yy Poot tit tit iwooodm 70 000dBm 20 000dBm Min This measurement has 50 0MHz 30 000dBm lt passed This is 1 s O ig indicated by the empty a m EPM P Series Peak and Average Power Meters User s Guide 57 2 General Power Meter Functions LCL TLK This measurement has failed as the result is greater than the set limit level This is indicated with This measurement has failed as the result is less than the set Recorder limit level This is indicated with gt Output the text RUIA RA Figure 2 21 Limit Failures 58 EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Setting the Range The power meter has no internal ranges The only ranges that can be set are those of the E Series and N8480 Series power sensors With an E Series or N8480 Series power sensor excluding Option CFT the range can
92. e 9 27 Video Bandwidth vs Peak Power Dynamic Range 235 EPM P Series Peak and Average Power Meters User s Guide xix XX EPM P Series Peak and Average Power Meters User s Guide EPM P Series Peak and Average Power Meters User s Guide 1 Introduction Welcome 2 Conventions Used in this Guide 4 Power Meter and Sensor Capability 5 Front Panel Keys and Connections 6 The Display Layout 10 Window Symbols 17 ee Agilent Technologies 1 Introduction Welcome Welcome to the EPMP Series power meter user s guide Together with the E9320 ESeries power sensors the EPM P Series power meters can measure complex modulation formats such as TDMA CDMA and W CDMA Preinstalled measurement setups for GSM900 EDGE NADC iDEN Bluetooth cdmaOne W CDMA and cdma2000 help reduce the time required to measure these common wireless communications formats Power measurements include peak peakto average ratio and average power of RF and microwave signals Extensive triggering features such as continuous level external TTL and GPIB are available for making time gated measurements In addition the EPM P power meters are compatible with E9300 E Series E Series E4410 8480 Series and N8480 Series power sensors giving you additional choice for conventional average power measurements The N8480 Series power sensors used in this user s guide is refering to all sensors from the N8480 Series unless otherwise stated Documentation Information As show
93. e Power Meters User s Guide 169 6 Using 8480 Series Power Sensors Cal Factor ap ay 098 4 Figure 6 90 Calibration Factor Pop Up Window Modify this see below as required e Use or to highlight the digit you want to change e Use or to increment or decrement the highlighted digit Confirm your choice by pressing Now make the measurement as follows 11 Connect the power sensor to the signal to be measured 12 The corrected measurement result is displayed When no sensor tables are selected and Single Numeric display mode is chosen the calibration factor used for the measurement is displayed in the upper window as shown in Figure 6 91 170 EPM P Series Peak and Average Power Meters User s Guide Using 8480 Series Power Sensors 6 LCL TLK Contrast 21 8BaBm Calibration Factor 21 85dBm Yy Heh 20 000dBm Figure 6 91 Calibration Factor Displayed Table 6 22 8480 Series Connection Requirements Sensor Connection requirements 8481A These power sensors connect directly to the POWER REF 8481H 8482A 8482H 8481D Prior to calibration an Agilent 11708A 30 dB reference attenuator 8484A should be connected between the power sensor and the POWER REF Remove this attenuator from the power sensor input before making measurements 8483A This power sensor requires a 75 Q f to 50 Q m N Type adapter 1250 0597 to connect to the POWER REF Remove this adapter before making measurements R8486
94. e period This allows stable triggering to be achieved even when a signal has multiple edges for example a TDMA signal with nonconstant amplitude modulation Values up to 400 ms can be configured To change the setting press Holdoff and use the fe and o keys to enter the new value Trigger Holdoff ap ay Oof 000 Figure 3 48 Trigger Holdoff Pop Up Complete the entry by pressing gs mS or US Hysteresis The current setting is displayed below the Hysteresis label You can use the hysteresis function to help generate a more stable trigger by preventing triggering unless the RF power level achieves the trigger level and the additional hysteresis value It can be applied to both rising and falling edge trigger generation A maximum of 3 dB hysteresis can be entered EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Rising Edge When a rising power transition triggers the power meter the triggering system is disabled The power meter does not trigger again if another rising power transition is presented The triggering system is rearmed only when the input power falls below a level equal to the trigger level minus the configured hysteresis value Falling edge When a falling power transition triggers the power meter the triggering system is disabled The power meter does not trigger again if another falling power transition is presented The triggering sys
95. e power meter to measure an Enhanced Data for Global Evolution or Enhanced Data for GSM Evolution signal Triggering is achieved using the rising edge of the burst As the power meter triggers during the rising power transition the measurement gate is configured to measure the average power in a 520 us period 20 us after triggering The display is configured to show the peak and peak to average results in the lower window in numeric format while the upper window shows the power trace starting 40 us before the trigger Step 1 The Channel Setup 1 Press The Channel Setup screen is displayed 2 Select the channel you want to configure 3 Use the fe and Change keys to configure the settings listed in Table 3 9 Table 3 9 Measurement Example Channel Setup Parameter Setting Sensor Mode Normal Range AUTO Filter AUTO Offset Off Frequency 900 MHz FDO Table Off Video Avg Off Video B W E9321A E9325A High E9322A E9326A Med E9323A E9327A Low Step Detect On The E9321A and E9325A sensors are best suited as they have the optimum dynamic range and low level stability in the 300 kHz bandwidth EPM P Series Peak and Average Power Meters User s Guide 109 3 110 Using E9320 E Series Power Sensors After a Preset Video B W defaults to High for all sensors Step 2 The Gate Setup Only one gate is to be set up starting 20 us after the trigger for a duratio
96. eak Power Peak to Average ratio Measurements between two time offsets time gating Averaging Averaging over 1 to 1024 readings is available for reducing noise Measurement Speed GPIB Over the GPIB three measurement modes are available Normal X2 and Fast The typical maximum speed for each mode is shown in the table below Measurement speed readings per second Sensor type Normal x2 Fast E9320 E Series peak Average only 20 40 400 and average sensors mode Normal mode 20 40 1000 E4410 E Series and E9300 E Series average 20 40 400 power sensors 8480 Series power sensors 20 40 N A N8480 Series power sensors 20 40 N A 1 Fast speed not available for 8480 Series and N8480 Series sensors 2 Maximum measurement speed is obtained by using binary output in free run trigger mode 3 For E9320 E Series sensors maximum speed is achieved using binary output in free run acquisition EPM P Series Peak and Average Power Meters User s Guide 237 9 Specifications and Characteristics Channel Functions Storage Registers Predefined setups Trigger Sources Time Resolution Delay Range Delay Resolution Hold off Internal Trigger A B A B B A A B B A and relative 10 instrument states can be saved via Save Recall menu For common wireless standards GSM900 EDGE NADC iDEN Bluetooth IS 95 CDMA WCDMA and cdma2000 predefined setups are provided Internal External TTL GPIB and RS232
97. ect the channel you want to configure The current setting of the duty cycle is displayed in the channel setup table 2 Use the fe and keys to select the duty cycle setting and press Change to select On RMT TLK Channel Setup Sensor Mode Range Filter Duty Cycle Offset Frequency CF Table FDO Table Video Avg Video Bi Step Detect RYG only AUTO AUTO 28 1B88 Off 8 88888 947 00MHz Off Off Off Mod Off Figure 2 32 Duty Cycle Off Change Gates gt Frace gt setg Done EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 3 Use the fe and keys to select the duty cycle value and press Change Duty Cycle 50 000 Figure 2 33 Duty Cycle Pop Up 4 Again use the gt and keys to select and change the values as required Complete the entry by pressing LCL TLK Channel Setup Change Sensor Mode Range Filter Duty Cycle Offset Frequency CF Table FDO Table Video Avg Video Bi Step Detect AYG only AUTO AUTO izg On 50 000 Off poggi 947 00MHz Off Off Ott Mod Off GaS Frace X setip Done Figure 2 34 Duty Cycle On 50 5 Press Done Pulse power averages out any aberrations in the pulse such as overshooting or ringing For this reason it is called pulse power and not peak power or peak pulse power In order to ensure accurate pulse pow
98. election must be overridden by selecting the D type linearity Subsequent connection of another A type sensor while the D type is selected will result in a warning message stating that Linearity Override May be Required V 8486A and W8486A sensors on page 26 show you how to change the linearity configuration Procedure 1 Ensure the power sensor is disconnected from any signal source 2 Refer to the connection requirements in Table 2 1 and ensure the sensor is ready for connection to the Power Reference 3 Check the current reference calibration factor setting by pressing Er More The value is displayed under the channel Ref CF softkey Does this setting match the value for the sensor The power sensor reference calibration factor can normally be found above the calibration factors table on the power sensor body 4 If required change this setting by pressing the channel Ref CE The reference calibration factor pop up window is displayed as shown in Figure 2 1 EPM P Series Peak and Average Power Meters User s Guide 25 2 26 General Power Meter Functions ET Ref Cal Factor 100 0 Figure 2 1 Reference Calibration Factor Pop Up Window Use the fe and keys to select and change the values as required 5 Confirm your choice by pressing 6 Press and the channel Zero softkey to zero the channel The message and wait symbol are displayed 7 Connect the power sensor to the P
99. ent levels 1 2 3 or 4 These four levels represent e 1 0 1 0 01 0 001 dB respectively if the measurement suffix is dBm or dB e 1 2 3 or 4 significant digits respectively if the measurement suffix is W or The default value is 0 01 dB three digits To set the resolution on the currently selected window 1 Press Ei The current setting of the resolution is highlighted under the Resolution softkey 2 To change this setting press Resolution until the required resolution setting is highlighted EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Making Relative Measurements Relative mode enables comparison of a measurement result to a reference value The relative reading or difference can be displayed in either dB or terms When the measurement result is displayed in a prefix multiplier may be shown Procedure To set a reference value on the currently selected window 1 Press t Rel Offset to display the Rel Offset menu 2 Confirm the power meter is measuring the signal you want to use as the reference 3 Press Rel to use the current reading as the reference value You can compare the measurement result in dB or percentage Rel Off On is automatically set to On when Rel is pressed 4 To change the measurements press ti Units Press dB or as required 5 Successive measurements are now displayed relative to the reference value The relative mode can
100. er readings the input signal must be pulsed with a rectangular pulse Other pulse shapes such as triangle chirp or Gaussian will cause erroneous results The pulse power on off ratio must be much greater than the duty cycle ratio EPM P Series Peak and Average Power Meters User s Guide 69 2 General Power Meter Functions Presetting the Power Meter This section details the power meter s preset conditions The GPIB address the data stored in the sensor calibration tables and the zeroing and calibration data are not affected by a Preset The calibration table selected is not affected Preset Conditions The number of windows displayed is two ss is not affected is not affected is not affected is not affected is not affected is not affected is not affected is not affected channel Table is not affected channel Table is not affected is set to Atype is set to Off is not affected 70 EPM P Series Peak and Average Power Meters User s Guide Channel Sensor Mode Range Filter Duty Cycle Offset Frequency Cal Fac CF Table FDO Table Video Avg Video B W Step Detect Gates Gate Start Gate Length Trace Setup Start General Power Meter Functions 2 Is active and set to Normal mode only when an E9320A E Series sensor is connected otherwise inactive and greyed out in AVG only setting Is active and set to Auto only when an E9320A E Seri
101. erface or by manually positioning trace markers using the front panel controls Setting up the power meter using the trace markers is a more interactive process and may require more iterations between channel triggering gate and display functions to make a measurement However it is ideally suited to measuring an unknown signal TIP If pulsed signal timing information is unavailable or incomplete you may prefer to use the trace and marker functions to configure your measurement You must select continuous or single trigger mode to enable the use of trace markers EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 The Set Up Process Setting Up Using Data Entry Using the data entry method the following steps are required to set up one or several measurements 1 Channel Setup choose the sensor mode and range configure filtering averaging bandwidth and the RF frequency 2 Gate Setup configure the timing of gates for the signal you want to measure 3 Trigger Setup configure the trigger to ensure the gates you have set up are capturing the required signal information 4 Display Setup choose the display format for the measurements you want to make 5 Measurement Setup assign the measurements to the displays you have set up EPM P Series Peak and Average Power Meters User s Guide 83 3 84 Using E9320 E Series Power Sensors Step 1 The Channel Setup e Pres
102. es E9300 E Series sensor or N8480 Series sensor excluding Option CFT is connected otherwise inactive and greyed out in Auto setting Is set to Auto Is set to Off Is inactive and greyed out when an E9320 E Series sensor is connected and in normal mode Is set to Off Is only available when an E Series sensor or N8480 Series sensor excluding Option CFT is connected and is set to 50 000 MHz Is only available when an 8480 Series sensor or N8480 Series sensor with Option CFT is connected and is set to 100 Is not affected when an 8480 Series sensor or N8480 Series sensor with Option CFT is connected otherwise inactive and greyed out in the Off setting Is not affected Is set to Off When and E9320A E Series sensor is connected otherwise greyed out in the Off setting Is set to Off when and E9320A E Series sensor is connected otherwise greyed out in the Off setting Is set to On Is only available when an E9320A E Series power sensor is connected All gates are set to 0 0000 s Gate 1 is set to 100 00 us Gates 2 3 and 4 are set to 0 0000 s Is only available when an E9320A E Series power sensor is connected Is set to 0 0000 s EPM P Series Peak and Average Power Meters User s Guide 71 2 72 General Power Meter Functions Length leas c Is set to 100 00 us Is set to 20 000 dBm Is set to 50 000 dBm Is set to dBm All Trigger configurations are inactive and greyed out unle
103. es Peak and Average Power Meters User s Guide 165 6 Using 8480 Series Power Sensors RMT TLK Please Zero Channel Setup Sensor Mode AYG only Range AFG Filter 128 Duty Cycle Off LBBB Offset off GHG Trace Cal Fac 100 0 Setep CF Table DEFAULT FDO Table Off Video Avg Gif 4 Done Video B W GHE Step Detect On Change lt 3 tes gt Figure 6 88 8480 Series Sensor Default Channel Setup 166 EPM P Series Peak and Average Power Meters User s Guide Using 8480 Series Power Sensors 6 Measurement Accuracy Power sensors have small errors in their response over frequency The response of each sensor is measured during manufacture and during periodic calibration and the resulting frequency compensation information is supplied in the form of calibration factors Using calibration factors enables you to achieve improved measurement accuracy The EPM P Series peak power meters provide two methods of using the calibration factors e inputting the individual calibration factor for a frequency prior to making the measurement or e using sensor calibration tables If you are making most of your measurements at a single frequency or in a narrow range of frequencies entering a specific calibration factor is a more effective method Only a minimal amount of data entry is required However if you are making measurements on a wide range of signal frequencies a sensor table is more effective as you only need to ente
104. et up Gate1 Start 0 2 us Length 366 us Gate2 Start 0 Length 0 Gate3 Start 0 Length 0 Gate4 Start 0 Length 0 The trigger is now configured for a power level of 20 dBm on a rising edge A trigger hold off is also setup for 650 us disabling the trigger until the current time slot is measured Acqn Cont Trig Source Int internal Level 20 dBm Mode Normal Slope rising Delay 0 Holdoff 650 us EPM P Series Peak and Average Power Meters User s Guide 129 3 130 Using E9320 E Series Power Sensors Parameters Setting Hysteresis 0 0 dB Output Off Meas Displa The display is setup for a dual numeric window and a trace window Upper Window Trace Lower Window Dual Numeric Meas The dual numeric window is configured to display the average power in gate 1 and the peak power in gate 1 The trace window is configured to show the RF burst from 50 us ahead of the trigger for a duration of 3 8 ms Upper Window Max 20 dBm Min 35 dBm Start 50 us Length 3 8 ms Lower Window Upper Line Gate 1 Average measurement Lower Line Gate 1 Peak measurement TIP If you require faster measurement speed set the Filter to MAN Channel Setup screen and reduce the filter value Conversely if you are measuring low power levels and want to improve the stability of the measurements increase the filter value Increasing
105. ge Power Meters User s Guide Using E9320 E Series Power Sensors 3 Table 3 18 cdmaOne Configurations Parameters Setting The E9322A and E9326A sensors are best suited due to their 1 5 MHz bandwidth The E9321A and E9325A are not recommended due to their lack of bandwidth After a Preset Video B W defaults to High for all sensors Sensor Mode Normal Range AUTO Filter AUTO Offset Off Frequency 8500 MHz FDO Table Off Video Avg Off Video B W E9322A E9326A High E9323A E9327A Medium Step Detect On Gates Only one gate is set up starting 1 us after the trigger for a duration of 10 ms Gate Start Os Length 10 ms Gate2 Start 0 Length Gate3 Start Length Gate4 Start Length o o o oj o The trigger is configured for continuous triggering on a rising edge at 10 dBm This results in continuously updated results based on a 10 ms period relating to a position beyond 0 01 on the CCDF curve Acqn Cont Trig Source Int internal Level 10 dBm Mode Auto Level Slope rising Delay 0 EPM P Series Peak and Average Power Meters User s Guide 133 3 134 Using E9320 E Series Power Sensors Parameters Setting Holdoff 0 Hysteresis 0 0 dB Output Off E Display The display is setup for a single numeric and a dual numeric window Upper Window Single Numeric Lower Win
106. gure 4 80 Spread Spectrum Signal 147 Figure 4 81 Wideband CDMA Error of E Series E9300 power sensor versus corrected CW sensor 148 Figure 4 82 CDMA IS 95A 9Ch Fwd 148 Figure 4 83 Calibration Factors versus Frequency 149 Figure 5 84 E Series CW sensor Auto averaging settings 159 Figure 5 85 E Series CW sensor default Channel Setup 160 Figure 5 86 Frequency Pop up Window 162 Figure 6 87 8480 Series Auto Averaging Settings 165 Figure 6 88 8480 Series Sensor Default Channel Setup 166 Figure 6 89 Reference Calibration Factor Pop Up Window 169 Figure 6 90 Calibration Factor Pop Up Window 170 Figure 6 91 Calibration Factor Displayed 171 Figure 6 92 Sensor Table Selected 175 Figure 6 93 Frequency Pop Up Window 176 Figure 6 94 Frequency Calibration Table Display 177 Figure 6 95 Sensor Tbls Screen 179 Figure 6 96 Edit Cal Screen 180 Figure 7 97 N8480 Series Auto Averaging Settings 188 Figure 7 98 N8480 Series Sensor excluding Option CFT Default Channel Setup 189 Figure 7 99 N8480 Series Sensor with Option CFT Default Channel Setup 189 Figure 7 100 Frequency Pop Up Window 192 Figure 7 101 Reference Calibration Factor Pop Up Window 194 EPM P Series Peak and Average Power Meters User s Guide xvii Figure 7 102 Calibration Factor Pop Up Window 195 Figure 7 103 Calibration Factor Displayed 196 Figure 7 104 Sensor Table Selected 198 Figure 7 105 Frequency Pop Up Window 198 Figure 7 106 Frequency Calibration Table Display
107. h that the current measurement is invalidated for example a change of frequency setting or triggering conditions 230 Data corrupt or stale Please zero and calibrate Channel A When CAL 1 2 RCAL is set to ON and the sensor currently connected to channel A has not been zeroed and calibrated then any command which would normally return a measurement result for example FETC READ or MEAS will generate this error message 230 Data corrupt or stale Please zero and calibrate Channel B When CAL 1 2 RCAL is set to ON and the sensor currently connected to channel B has not been zeroed and calibrated then any command which would normally return a measurement result for example FETC READ or MEAS will generate this error message 230 Data corrupt or stale Please zero Channel A When CAL 1 2 RCAL is set to ON and the sensor currently connected to channel A has not been zeroed then any command which would normally return a measurement result for example FETC READ or MEAS will generate this error message 230 Data corrupt or stale Please zero Channel B When CAL 1 2 RCAL is set to ON and the sensor currently connected to channel B has not been zeroed then any command which would normally return a measurement result for example FETC READ or MEAS will generate this error message 230 Data corrupt or stale Please calibrate Channel A When CAL 1 2 RCAL is set to
108. he reference calibration factor pop up window is displayed as shown in Figure 6 89 168 EPM P Series Peak and Average Power Meters User s Guide Using 8480 Series Power Sensors 6 Ref Cal Factor an ay 100 0 Figure 6 89 Reference Calibration Factor Pop Up Window Modify this see below as required e Use or to highlight the digit you want to change e Use or to increment or decrement the highlighted digit 5 Confirm your choice by pressing Now zero and calibrate the power meter sensor combination as follows 6 Press and the channel Zero softkey to zero the channel The message and wait symbol are displayed 7 Connect the power sensor to the POWER REF output 8 Press the channel Cal softkey to start the calibration routine The message and wait symbol are displayed Now set the sensor calibration factor for the frequency of the signal you want to measure 9 Check the current calibration factor setting by pressing Ermo The value is displayed under the channel Cal Fac softkey Does this setting match the value for the sensor at the frequency of the signal you want to measure The calibration factors are presented in table form on the power sensor body You may need to interpolate between values if the specific frequency is not listed 10 If required change this setting by pressing the channel Cal Fac The calibration factor pop up window is displayed as shown in Figure 6 90 EPM P Series Peak and Averag
109. he expected results are within the specifications and capabilities of the power meter e Check the power meter display for error messages e Check operation by performing the self tests e Check with a different power sensor Instrument serial numbers Agilent Technologies makes frequent improvements to its products to enhance their performance usability and reliability Agilent Technologies service personnel have access to complete records of design changes for each instrument The information is based on the serial number and option designation of each power meter Whenever you contact Agilent Technologies about your power meter have a complete serial number available This ensures you obtain the most complete and accurate service information The serial number can be obtained by e interrogating the power meter over the GPIB using the IDN command e from the front panel by selecting C More Service Version e from the serial number label The serial number label is attached to the rear of each Agilent Technologies instrument This label has two instrument identification entries The first provides the instruments serial number and the second provides the identification number for each option built into the instrument The serial number is divided into two parts the prefix two letters and the first four numbers and the suffix the last four numbers EPM P Series Peak and Average Power Meters User s Guide 227
110. he front panel or remotely The front panel softkey menu allows you to run individual tests whereas the remote command runs a complete series of tests as listed in Remote Testing on page 209 Power On Self Test 206 The power on self test is performed automatically when the power meter is turned on and takes approximately 10 seconds to complete The power on self test checks following components e Lithium Battery e Calibrator e Measurement Assembly Both assemblies on dual channel meters e Fan e Serial Interface Refer to see Test Descriptions on page 210 if you require a description of each individual test As the power on self test takes place the message Testing appears next to the name of the test which is being performed When each test is complete the message Testing is replaced by either the message Passed or Failed If a failure occurs the message Power up H W Err appears Any errors are also written to the error queue and can be examined in the Errors screen by pressing Per Error List EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 Front Panel Selection of Self Tests Press P More Semic SEP TESE to access the Self Test menu consisting of the following Instrument Self Test Individual accessing the following tests Keyboard Fan Display bitmaps Serial Interface accessing the following tests a UART Configuration m Local Loop Back m RS232 Loop
111. he product until safe operation can be verified by service trained personnel If necessary return the product to a Agilent Sales and Service Office for service and repair to ensure the safety features are maintained DO NOT substitute parts or modify equipment Because of the danger of introducing additional hazards do not install substitute parts or perform any unauthorized modification to the product Return the product to a Agilent Sales and Service Office for service and repair to ensure the safety features are maintained EPM P Series Peak and Average Power Meters User s Guide vii viii EPM P Series Peak and Average Power Meters User s Guide Contents 1 Notices ii Certification iii Warranty iii Limitation of Warranty iii Exclusive Remedies iv Warnings and Cautions iv Safety Symbols v General Safety Considerations vi Introduction Welcome 2 Conventions Used in this Guide 4 Power Meter and Sensor Capability 5 1 Not applicable for N8480 Series power sensors with Option CFT Front Panel Keys and Connections 6 The Display Layout 10 Window Symbols 17 Confirmation Pop Up 17 Wait Symbol 18 One of Many Entry Pop Up 18 Configuration Conflict Pop Up 18 Numeric or Alphanumeric Entry Pop Up 19 2 General Power Meter Functions Zeroing and Calibrating 22 Zeroing 22 Calibration 23 Calibration with E Series Power Sensors and N8480 Series Power Sensors Excluding Option CFT 24 Calibration with 8480 Series Power Sensor
112. ics on page 226 If you still have a problem please read the warranty printed at the front of this guide If your power meter is covered by a separate maintenance agreement please be familiar with the terms Agilent Technologies offers several maintenance plans to service your power meter after warranty expiration Call your Agilent Technologies Sales and Service Center for full details If the power meter becomes faulty and you wish to return the faulty instrument follow the description on how to return the faulty instrument in the section see Sales and Service Offices on page 229 Check the Basics Problems can be solved by repeating what was being performed when the problem occurred A few minutes spent in performing these simple checks may eliminate time spent waiting for instrument repair Before calling Agilent Technologies or returning the power meter for service please make the following checks EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 e Check that the line socket has power e Check that the power meter is plugged into the proper AC power source e Check that the power meter is switched on e Check that the line fuse is in working condition e Check that the other equipment cables and connectors are connected properly and operating correctly e Check the equipment settings in the procedure that was being used when the problem occurred e Check that the test being performed and t
113. ing Option CFT measure power levels from 35 dBm to 20 dBm 316 nW to 100 mW at frequencies from 100 kHz to 33 GHz and have two independent power measurement range upper and lower range Table 7 24 Power Range in Power Meter Range Setting Sensor Range Setting Lower Range Upper Range and N8486A0 AR LOWER 35 dBm to 1 dBm excluding Option CFT UPPERZ 30 dBm to 20 dBm AUTO Default 5 dBm to 29 dBm 29 dBm to 44 dBm N8481 2B excluding LOWER 5 dBm to 29 dBm Option CFT UPPER 0 dBm to 44 dBm AUTO Default 15 dBm to 17 dBm 17 dBm to 35 dBm Nggeh excluding LOWER 15 dBm to 17 dBm Option CFT UPPER 10 dBm to 35 dBm Meanwhile the N8480 sensors with Option CFT only measure power levels from 30 dBm to 20 dBm 1 uW to 100 mW in single range Similar to the E Series power sensors the N8480 Series power sensors are also equipped with EEPROM to store sensor s characteristics such as model number serial number linearity temperature compensation calibration factor and so forth However the calibration factor table stored in the EEPROM is not applicable for N8480 Series power sensors with Option CFT Therefore you are required to use the default calibration tables or manually enter the required correction factors Likewise they cannot be used to make peak or time gated measurements 186 EPM P Series Peak and Average Power Meters User s Guide Using N8480 Series
114. ing power sensor tables require the following steps 1 Choose the sensor table for the power sensor you are using and allocate it to the associated power meter channel 2 Zero and calibrate the power meter The reference calibration factor used during the calibration is automatically set by the power meter from the sensor calibration table 3 Specify the frequency of the signal you want to measure The calibration factor is automatically selected by the power meter from the sensor calibration table 4 Make the measurement EPM P Series Peak and Average Power Meters User s Guide 197 7 198 Using N8480 Series Power Sensors Procedure First select the table for the sensor you are using as follows 1 Press sen Tables Sensor Cal Tables to display the Sensor Tbls screen The selected sensor table is indicated in the State column as shown in Figure 7 104 The sensors are listed 1 to 9 with a further 10 10 to 19 available as custom tables The Pts column shows the number of data points in the table 2 Use the and keys to select the sensor model you are using 3 Press Table On Off to highlight On The State changes to on as shown in Figure 7 104 LCL TLK Tbl Name State Pts DEFAULT off 2 on 19 HP84824 off 12 HP84834 off 10 HP8481D off 21 HP84854 off 22 R8486A off 17 Q8486A off 19 R8486D off 17 HP84874 off 54 COSanonkhann oO Figure 7 104Sensor Table Selected 4 Press Done to complete the process
115. input to Channel B exceeds the power sensor s maximum range 231 Data questionable Lower window log error This indicates that a difference measurement in the lower window has given a negative result when the units of measurement were logarithmic 231 Data questionable Upper window log error This indicates that a difference measurement in the upper window has given a negative result when the units of measurement were logarithmic 231 Data questionable ZERO ERROR Power meter zeroing failed The most likely cause is attempting to zero when some power signal is being applied to the power sensor 231 Data questionable ZERO ERROR ChA Power meter zeroing failed on channel A The most likely cause is attempting to zero when some power signal is being applied to the power sensor 231 Data questionable ZERO ERROR ChB Power meter zeroing failed on channel B The most likely cause is attempting to zero when some power signal is being applied to the power sensor EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 241 Hardware missing The power meter is unable to execute the command because either no power sensor is connected or it expects an Agilent E Series or N8480 Series power sensor and one is not connected 310 System error Dty Cyc may impair accuracy with ECP sensor This indicates that the sensor connected is for use with CW signals only 310 System
116. ion 00 _ a m Inputs T5 gt 16 17 T8 Time Description Value T5 Maximum time between inputs going low 100 ms T6 Minimum overlap of low inputs 200 ms T7 Time between input detection and start of zero cal cycle This is determined by the 4s number of averages x sample rate or if there is an existing zero cal operation in progress the time for this current operation to complete Note that the worst case is 1024 averages x 50 ms 51 2 s For front panel operation in free run mode the time is 1 x 50 ms T8 Time for cal operation to complete Cal All timings based on 100 ms firmware polling If both TTL inputs are simultaneously low under any circumstances other than those shown above the operation is undefined EPM P Series Peak and Average Power Meters User s Guide 6 s 8480 Series 7 s E Series 30 s E9320 Series 10 s N8480 Series excluding Option CFT 7 s N8480 Series with Option CFT 33 2 General Power Meter Functions Setting the Units of Measurement 34 The Units menu is used to select the measurement units for the currently selected window These can either be logarithmic dBm or dB or linear Watt or units Presetting Fs the power meter sets the measurement units to dBm logarithmic units Table 2 5 and Table 2 6 show the units applicable to each measurement mode Press ES Units Select the unit of measurement from dBm W dB and
117. ion for both the single channel E4416A and the dual channel E4417A To identify channels on a dual channel meter a Channel softkey on an E4416A meter becomes Channel A and Channel B to an E4417A When you are asked to press the channel Softkey in a procedure make sure you select the relevant channel EPM P Series Peak and Average Power Meters User s Guide Introduction 1 Power Meter and Sensor Capability Your E4416A or E4417A power meter is compatible with E9320 E Series E9300 E Series E4410 E Series 8480 Series and N8480 Series power sensors However not all sensor and meter combinations have the same features or capabilities The main differences are Features E9320 E9300 E 4410 8480 N8480 E Series E Series E Series Series Series Average Power of CW Signal e e e Cal Factors on EEPROM e e e e gt 200 Readings per second e Average Power of modulated signal e Peak Burst Average Power Time Gated Measurements 1 Not applicable for N8480 Series power sensors with Option CFT Specifications The specifications for the power meter are listed in Chapter 1 EPM P Series Peak and Average Power Meters User s Guide 5 1 Introduction Front Panel Keys and Connections This section briefly describes the functions of the front panel keys and connectors The user s guide shows you how to use them in more detail These keys are located to the left of the display Preset Local Function
118. ir DEFAULT GSMs00 EDGE NADC Bluetooth cdmaOne W CDMA cdmaz2000 iDEN Figure 3 67 Preset Selection Display If required you can modify the setups to suit your own needs and save them using Saving and Recalling Power Meter Configurations on page 65 When there are no power sensors connected or sensors other than E9320 E Series power sensors the preinstalled setups menu keys are disabled When an E Series E9320 power sensor and a non E Series E9320 power sensor are connected to a dual channel meter only the channel connected to the E Series E9320 power sensor is configured The other channel is configured with default settings When two E9320 E Series power sensors are connected to a dual channel meter both channels are configured with the same values differing only when the desired bandwidth requires an appropriate setting for each sensor 114 EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Measuring GSM The GSM900 configuration is available by pressing res and using the keys to select GSM900 Pressing Confirm completes the process The preinstalled setup configures the power meter for an average power measurement in a GSM RF burst Triggering is achieved using the rising edge of the burst The useful part of the GSM burst lasts for 542 8 us with a rise time of 28 us As the power meter triggers during the rising power transition the measurement gate is
119. is attenuator from the power sensor input before making measurements This power sensor requires a 75 Q f to 50 Q m N Type adapter 1250 0597 to connect to the POWER REF Remove this adapter from the power sensor input before making measurements These waveguide power sensors have two connectors Use the N Type connector to calibrate the power meter These power sensors are configured with an attenuator Prior to calibration this attenuator must be removed The attenuator must be reconnected prior to making measurements EPM P Series Peak and Average Power Meters User s Guide 27 2 28 General Power Meter Functions Table 2 1 Power Sensor Connection Requirements Sensor Connection requirements 8485A N8485A E4413A E9300A H24 E9300A H25 8485D 8487A N8487A N8488A 8487D N8486AR N8486A0 This power sensor requires an APC 3 5 f to 50 Q m N Type adapter 08485 60005 to connect to the reference calibrator Remove this adapter before making measurements Prior to calibration an Agilent 11708A 30 dB reference attenuator and an APC 3 5 f to 50 Q m N Type adapter 08485 60005 should be connected between the power sensor and the reference calibrator Remove this attenuator from the power sensor input before making measurements This sensor requires an APC 2 4 f to 50 Q m N Type adapter 08487 60001 to connect to the power meter Remove this adapter before making measurements Prior to the po
120. lable softkey labels are displayed in these four fields Additionally settings associated with the labelled function are displayed 19 18 17 16 1514 RMT TLK ST 13 Rng Ofs Rel Single 50 0MHz Cyc Hid Ove Numeric 20 08 5 2 A 20 08dBm GTT h 70 000dBm 20 000dBm 12 EPM P Series Peak and Average Power Meters User s Guide Introduction 1 13 This field displays the menu title For example when the power meter is initially switched on the Contrast menu is displayed and if for example you press E the Zero Cal menu is displayed 14 This field indicates the measurement result is out with any configured upper or lower limits If the measurement is within the limits this field is empty If the measurement result is less than the minimum limit set Undr Lmt is displayed If the measurement result is more than the maximum limit set Over Lmt is displayed 15 This field displays Rel if relative mode is on 16 This field displays Ofs if an offset is set 17 This field displays Rng Hld if a range is selected 18 This field displays Dty Cyc if a duty cycle is set With an E Series E9320 power sensor connected the field shows amp Q L Or f depending on the trigger state 19 The information in this field is displayed on two lines and depends on the sensor type sensor calibration table frequency dependent offset table currently selected and the measurement frequency The following trace disp
121. lays are only available when an E Series E9320 power sensor is connected 50 0MHz I A 8 84uiBm 20 20 000dBm 21 50 000dBm EPM P Series Peak and Average Power Meters User s Guide 13 1 Introduction 20 This window is configured to show a trace display This is only available with an E Series E9320 power sensor connected The captured trace and scaling are displayed 21 The indicates the point on the trace where trigger event occurs Single or continuous triggering Sing Trig or Cont Trig must be selected from the Acqn menu to view a trace window The Acqn menu is accessed by pressing ese Acqn Trace is disabled when Free Run is selected AT Avg 5 67dBm Peak 4 32dBm Pk Avg 1 34dB 24 25 Pow 40 60dBm 155us 4 440Bm 2 Time Pow This display shows the Gate Ctrl menu associated tables and markers The Gate Ctrl screen is accessed by pressing Gate Control from the Trace Ctrl menu or by pressing Gate Control from the Gates menu 22 Pressing Gate scrolls through the four gates available for each channel The selected gate number is repeated in the upper left corner of the window 23 The markers 1 and 2 indicate the start and end points of the selected gate Pressing Marker 1 2 toggles between the two markers You can use the and keys to move the active marker along the trace 24 This table shows the time Time from the configured trigger point and the instanta
122. ll not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED AGILENT TECHNOLOGIES SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE EPM P Series Peak and Average Power Meters User s Guide iii Exclusive Remedies Warnings and Cautions THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES AGILENT TECHNOLOGIES SHALL NOT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY This guide uses warnings and cautions to denote hazards A warning calls attention to a procedure practice or the like which if not correctly performed or adhered to could result in injury or the loss of life Do not proceed beyond a warning until the indicated conditions are fully understood and met CAUTION A caution calls attention to a procedure practice or the like which if not correctly performed or adhered to could result in damage to or the destruction of part or all of the equipment Do not proceed beyond a caution until the indicated conditions are fully understood and met Recommended Calibration Interval Agilent Technologies reco
123. ments of both active time slots in NADC or IS 136 full rate transmission This assumes that there are two time slots in each frame to be measured for example time slots 0 in Figure 3 70 IS 136 full rate frame Figure 3 70 Full Rate Frame Triggering is achieved using the rising edge of the burst The measurement gates are configured to measure the average power in two NADC time slots separated by two inactive time slots The rise time of an NADC TDMA burst is approximately 123 5 us 6 bits and the useful part of the burst lasts approximately 6 4 ms Gate 1 is configured to measure the average power in a EPM P Series Peak and Average Power Meters User s Guide 121 3 122 Using E9320 E Series Power Sensors 6 4 ms period 123 5 us after triggering Gate 2 is configured to measure the average power in a 6 4ms period 20 123 ms 3 time slots plus rise times after triggering The display Figure 3 71 is configured to show the Gate 1 and Gate 2 average results in the lower window in numeric format while the upper window shows the power trace starting 0 2 ms before the trigger RMT TLK A 20 000dBm 9 51 apm Any Mir 10 37am Figure 3 71 NADC Measurement Display EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors Table 3 15 NADC Configurations 3 Parameters Setting Channel The narrow bandwidth of the NADC signal requires only
124. mmends a two years calibration cycle for the E4416A and E4417A EPM P Series power meter EPM P Series Peak and Average Power Meters User s Guide Safety Symbols The following symbol on the instrument and in the documentation indicates precautions that must be taken to maintain safe operation of the instrument Caution risk of danger The Instruction Documentation Symbol The product is marked with this symbol when it is necessary for the user to refer to the instructions in the supplied documentation This symbol indicates the operating switch for Stand by mode Note the instrument is NOT isolated from the mains when the switch is pressed To isolate the instrument the mains coupler mains input cord should be removed from the power supply NY Alternating current AC This symbol indicates the operating switch for On mode EPM P Series Peak and Average Power Meters User s Guide v General Safety Considerations vi The following general safety precautions must be observed during all phases of operation service and repair of this instrument Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of the instrument Agilent Technologies assumes no liability for the customer s failure to comply with these requirements EPM P Series Peak and Average Power Meters User s Guide WARNING This is a Safety Class
125. n in the installation guide this guide is only part of the information supplied The documentation consists of e The installation guide Shows you how to check your power meter switch it on and connect it to an Agilent power sensor This information is presented in English French German Italian Japanese and Spanish languages The user s guide Shows you how to operate your power meter from the front panel interface to make measurements using the Agilent E Series E9320 E Series E9300 E Series E4410 8480 Series and N8480 Series power sensors You can find the user s guide as Adobe Acrobat PDF Portable Document Format file on the supplied CD ROM in English French German Italian Japanese and Spanish languages e The programming guide Shows you how to operate your power meter using the remote interfaces You can find the programming guide as an Adobe Acrobat PDF file on the supplied CD ROM in English language only Printed Guides available by ordering the following options e English language user s guide Option OBK EPM P Series Peak and Average Power Meters User s Guide Introduction 1 e French language user s guide Option ABF e German language user s guide Option ABD e Italian language user s guide Option ABZ e Japanese language user s guide Option ABJ e Spanish language user s guide Option ABE The programming guide is supplied in english language only What You ll Find in this Guide Thi
126. n of 520 us 1 Press Gates The Channel Gates screen is displayed 2 Use the fe and Change keys to configure the settings listed in Table 3 10 Table 3 10 Measurement Example Gate Configurations Parameter Setting Gate1 Start 20 us Length 520 us Gate2 Start Length Gate3 Start Length Gate4 Start Length o o o o oj o EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Step 3 The Trigger Setup The trigger is now configured for a power level of 20 dBm on a rising edge A trigger hold off is also setup for 4275 us disabling the trigger and ensuring the same time slot is measured at the next frame Also trigger hysteresis is included to prevent small power transitions during the burst causing retriggering Configure the Trigger as shown in Table 3 11 Table 3 11 Measurement Example Trigger Configurations Parameter Setting Acqn Cont Trig Source Int internal Trigger Level 20 dBm Slope rising Holdoff 4275 us Hysteresis 3 0 dB Output Off 1 Press Maver The Trigger menu is displayed 2 Press Acqn Cont Trig 3 Press Settings Source Int 4 Press Mode Norm 5 Press Level Use the the gt and keys to set the trigger level to 20 dBm Press to access the second page of the menu 7 Press Slope to select F 8 Press Holdoff Use the a
127. n the sensor calibration table the power meter uses the highest or lowest frequency point in the sensor calibration table to set the calibration factor When Single Numeric display mode is chosen the frequency you entered and the sensor table identifier is displayed in the upper window Also pressing Etecuency displays the frequency you entered and calibration factor for each channel derived from the selected sensor tables EPM P Series Peak and Average Power Meters User s Guide Using 8480 Series Power Sensors 6 A 13 5GHz Freq 13 500GHz 1 0 28 cam A 0 28dBm h bad 20 000dBm Figure 6 94 Frequency Calibration Table Display EPM P Series Peak and Average Power Meters User s Guide 177 6 Using 8480 Series Power Sensors Editing Generating Sensor Calibration Tables To help achieve the best accuracy in your measurement you can enter the values supplied for the sensors you are using by editing the installed sensor calibration tables or by generating your own custom tables While you cannot delete any of the 20 sensor calibration tables you can edit or delete their contents If you need another table you should edit and rename one of the tables A maximum of 80 frequency calibration factor data points can be stored in each table Syst You can view the installed sensor tables by pressing P Tables Sensor Cal Tables to display the Sensor Tbls screen as shown in Figure 6 92 These power sensors are T
128. ncy in the range of 0 001 MHz to 999 999 GHz can be entered A calibration factor in the range of 1 to 150 can be entered The following rules apply to naming sensor calibration tables The name must consist of no more than 12 characters e All characters must be upper or lower case alphabetic characters or numeric 0 9 or an underscore _ e No other characters are allowed e No spaces are allowed in the name Now change the title of the table as follows 3 Highlight the table title using the and keys Press Change and use the fe gt and keys to select and change the chacraters create the name you want to use e Pressing Insert Char adds a new character to the right of the selected character e Pressing Delete Char removes the selected character Press Enter to complete the entry EPM P Series Peak and Average Power Meters User s Guide Using N8480 Series Power Sensors 7 Enter the reference calibration factor as follows 4 Using the and keys select the reference calibration factor value and press hangel Use the gt and keys to change the value to match the power sensor Press to complete the entry Edit and or enter the frequency and calibration factor pairs as follows 5 Use the fe and keys to select the frequency or calibration factors in the table 6 Press Change and edit the value to match the sensor you want to use Complete the entry by pressing
129. nd header or within a parameter For example LIM LOW O 102 Syntax error Invalid syntax was found in the command string For example LIM CLE AUTO 1 or LIM CLE AUTO 1 103 Invalid separator An invalid separator was found in the command string You may have used a comma instead of a colon semicolon or blank space or you may have used a blank space instead of a comma For example OUTP ROSC 1 105 GET not allowed A Group Execute Trigger GET is not allowed within a command string 108 Parameter not allowed More parameters were received than expected for the command You may have entered an extra parameter or added a parameter to a command that does not accept a parameter For example CAL 10 109 Missing parameter Fewer parameters were received than expected for the command You omitted one or more parameters that are required for this command For example AVER COUN 112 Program mnemonic too long A command header was received which contained more than the maximum 12 characters allowed For example SENSeAVERageCOUNt 8 EPM P Series Peak and Average Power Meters User s Guide 215 8 216 Maintenance 113 Undefined header A command was received that is not valid for this power meter You may have misspelled the command it may not be a valid command or you may have the wrong interface selected If you are using the short form of the c
130. nd keys to enter a value of 4275 us 9 Press Hysteresis Use the gt and keys to enter a value of 3 dBm o EPM P Series Peak and Average Power Meters User s Guide 111 3 Using E9320 E Series Power Sensors Step 4 The Display Setup Before configuring the measurement first setup the display for a dual numeric window and a trace window Configure the display as follows 1 2 3 4 5 Press E The Disp Form menu is displayed Use the or keys to select the upper window Press Disp Type Trace Use the or C keys to select the lower window Press Dual Numeric Step 5 The Measurement Setup The dual numeric window is now configured to display the average power and the peak to average ratio in Gate 1 The trace window is configured to show the RF burst from 20 us ahead of the trigger for a duration of 700 us Configure the Measurements as follows 1 2 Press k Use the or C keys to select the upper measurement in the lower window Press Meas Select Use the fe and keys to setup an average measurement in Gate 1 4 Press Done 5 Use the or keys to select the lower measurement in the 7 8 9 lower window Press Meas Select Use the and keys to setup a peak to average measurement in Gate 1 Press Done Press SS Use the or C keys to select the upper window 10 Press and setup the
131. neous power level Pow for both markers A negative time value indicates a measurement before the trigger point 14 EPM P Series Peak and Average Power Meters User s Guide Introduction 1 Gate timing parameters are all related to your chosen trigger point This may be different from the timing of the triggering event if you have configured a trigger delay Refer to item 26 for more information 25 This table shows the width of the gate AT time between the markers and the average peak and peak to average ratio power measurements within the gate 26 1 Time 25 8us AT Pow 31 91dBm Avg 7 58dBm 2Time 120us Peak 4 43dBm Pow 4 58dBm Pk Avg 3 15dB 26 Pressing Select TgDel hides the gate markers and displays the trigger marker s indicates when the trigger event occurs whilst hy shows the delayed trigger point When the two points coincide only the delayed trigger d is shown In the example displayed the iy appears ahead of the as a trigger delay of 70 00 us has been configured placing the measurement trigger before the trigger event You can configure the trigger delay by pressing Select TgDel and entering a numeric value or by pressing the or keys Gate and trigger markers are moved one pixel when the or keys are pressed and released They are moved up to five pixels at a time when the keys are pressed and held To reduce the time interval represented by one pixel decrease the length of the displayed t
132. ngs are correctly configured on the UART e Local Loop Back Tx and Rx on the UART are internally connected and a test message is sent to confirm correct operation e RS232 RS422 Loop Back A message is sent via the UART and transceivers using an external loop back connector refer to the EPM P Series Power Meter Service Guide Calibrator The reference calibrator is turned on indicated by the POWER REF LED and measured internally A pass or fail result is returned Display Three tests are available for the display the display assembly display RAM and bitmap display A read or write is performed on the display RAM If the value which is written is read back correctly a pass is recorded otherwise a fail is recorded The liquid crystal display or light emitting diode LCD LED control circuits are tested by making separate voltage measurements via the multiplexer and digital signal processor If the expected voltages are measured a pass is recorded otherwise a fail is recorded The three circuits tested are the LCD contrast control the LED brightness control and the display temperature sensing diode Trigger Loop Back This test generates a level on the trigger output and verifies that it can be seen on the trigger input You are required to make the connection between the trigger input and out put connectors BNC Time Base This test routes the 10 MHz internal time base signal to the trigger output connector where f
133. ngs are ignored during calibration Some power sensors require adaptors or attenuator pads to enable connection to the POWER REF output Refer to Table 2 1 on page 27 for details During calibration the power meter automatically switches the power reference calibrator on if it is not already on After calibration it switches it back to the state it was in prior to calibration EPM P Series Peak and Average Power Meters User s Guide 23 2 24 General Power Meter Functions Calibration with E Series Power Sensors and N8480 Series Power Sensors Excluding Option CFT This section describes the calibration procedure for E Series power sensors and N8480 Series power sensors excluding Option CFT The power meter identifies that an E Series power sensors and N8480 Series power sensors excluding Option CFT is connected and automatically downloads the calibration table Since there is no requirement to enter any calibration factors the channel Ref CF and Cal Fac softkeys are disabled These softkey labels are still visible but appear grayed out Procedure Zero and calibrate the power meter sensor combination as follows 1 Ensure the power sensor is disconnected from any signal source 2 Refer to the connection requirements in Table 2 1 and ensure the sensor is ready for connection to the power reference 3 Press and the channel Zero softkey to zero the channel The message and wait symbol are displayed 4 Connect the power
134. nnel Cal softkey to start the calibration routine When the calibration routine is complete press Espen Cal Fac Use the gt and keys to select and change the digits to display 97 6 in the pop up window Complete the entry by pressing Connect the power sensor to the signal to be measured EPM P Series Peak and Average Power Meters User s Guide Using N8480 Series Power Sensors 7 e The corrected measurement result is displayed Sensor Calibration Tables This section describes how to use sensor calibration tables Sensor calibration tables store the measurement calibration factors for a power sensor model or for a specific power sensor in the power meter They are used to correct measurement results TIP Use sensor calibration tables when you want to make power measurements over a range of frequencies using one or more power sensors The EPM P Series power meters are capable of storing 20 sensor calibration tables each containing up to 80 frequency points The power meter is supplied with a set of 9 predefined sensor calibration tables plus a 100 default table The data in these tables is based on statistical averages for a range of Agilent Technologies power sensors Your own sensor will most likely differ from the typical to some degree If you require best accuracy create a custom table for each sensor you use as shown in Editing Generating Sensor Calibration Tables on page 200 Us
135. nsor bandwidth and is best suited for accurate trace capture removing any ringing effects caused by the sharp cutoff filters used in the Low Med and High settings Figure 3 39 shows the filter shapes associated with the E9323A and E9327A power sensors Table 3 8 on page 76 lists all the bandwidth settings Selecting a bandwidth only slightly higher than required by your signal can help reduce noise and improve accuracy on peak measurements It can however reduce the processing speed for long acquisition times Step Detect To reduce the filter settling time after a significant step in the measured power the filter can be set to reinitialise upon detection of a step increase decrease in the measured power Step detection can be set in both manual and automatic filter modes EPM P Series Peak and Average Power Meters User s Guide 87 3 88 Using E9320 E Series Power Sensors Step 2 The Gate Setup e Press Gates The Channel Gates screen is displayed RMT TLK Channel Gates Gate Start Length 100 0us Gate2 Start 0 000 Length 0 000 Gate3 Start 0 000 Length 0 000 Gate4 Start 0 000 s Length 0 000 Figure 3 40 Gates screen e First select the Gate Start value for the gate you want to configure using the fe and keys The gate start time is relative to the trigger event Positive values open a measurement gate up to one second after the trigger Use a negative Time Gate Start value to
136. nually lowering the filter settings speeds up the measurement but can result in an unwanted level of jitter Summary Attention must be paid to signals whose average power levels are in the low power path range whilst their peaks are in the high power path range You can achieve best accuracy by selecting the high power path or best speed by selecting the low power path EPM P Series Peak and Average Power Meters User s Guide 155 4 Using E9300 E Series Power Sensors 156 EPM P Series Peak and Average Power Meters User s Guide EPM P Series Peak and Average Power Meters User s Guide 5 Using E4410 E Series Power Sensors Introduction 158 Power Meter Configuration 159 Measurement Accuracy 161 phe Agilent Technologies 157 5 Using E4410 E Series Power Sensors Introduction 158 The E4410 E Series power sensors are diode based power sensors They are intended for the measurement of CW microwave power levels in a wide dynamic range from 70 dBm to 20 dBm 100 pW to 100 mW These are high speed power sensors and do not incorporate narrow bandwidth averaging used in average power sensors Signals with digital pulse or other forms of amplitude modulation may introduce measurement errors Multi tone signals containing multiple frequency components or signals with significant harmonic content gt 45 dBc may introduce measurement errors at high power levels Please refer to the documentation supplied with your E Serie
137. nuation may be required when directly measuring GSM transmitter output Enter the value of the attenuation as an Offset IEA Meas Select to correct the displayed measurement result EPM P Series Peak and Average Power Meters User s Guide EPM P Series Peak and Average Power Meters User s Guide 4 Using E9300 E Series Power Sensors Introduction 142 Power Meter Configuration 143 Measurement Accuracy 145 Measuring Spread Spectrum and Multitone Signals 147 Measuring TDMA Signals 150 Electromagnetic Compatibility EMC Measurements 152 Measurement Accuracy and Speed 153 phe Agilent Technologies 141 4 142 Using E9300 E Series Power Sensors Introduction The E9300 E Series power sensors are true average wide dynamic range RF microwave power sensors They are based on a dual sensor diode pair attenuator diode pair This technique ensures the diodes in the selected signal path are kept in their square law region thus the output current and voltage is proportional to the input power The diode pair attenuator diode pair assembly can yield the average of complex modulation formats across a wide dynamic range irrespective of signal bandwidth Further refinements are included to improve power handling allowing accurate measurement of high level signals with high crest factors without incurring damage to the sensor These sensors measure average RF power on a wide variety of modulated signals and are independent of the
138. oard with 159 kg 350 1b bursting strength The carton must be both large enough and strong enough to accommodate the power meter and allow at least 3 to 4 inches on all sides of the power meter for packing material 3 Surround the power meter with at least 3 to 4 inches of packing material or enough to prevent the power meter from moving in the carton If packing foam is not available the best alternative is SD 240 Air Cap T from Sealed Air Corporation Commerce CA 90001 Air Cap looks like a plastic sheet covered with 1 1 4 inch air filled bubbles Use the pink Air Cap to reduce static electricity Wrap the power meter several times in the material to both protect the power meter and prevent it from moving in the carton 4 Seal the shipping container securely with strong nylon adhesive tape 5 Mark the shipping container FRAGILE HANDLE WITH CARE to ensure careful handling 6 Retain copies of all shipping papers EPM P Series Peak and Average Power Meters User s Guide EPM P Series Peak and Average Power Meters User s Guide 9 Specifications and Characteristics Introduction 232 Power Meter Specifications 233 Measurement Characteristics 237 Environmental Specifications 241 Regulatory Information 242 phe Agilent Technologies 231 9 Specifications and Characteristics Introduction This chapter details the power meter s specifications and supplemental characteristics Specifications describe the warranted pe
139. ommand remember that it may contain up to four letters For example TRIG SOUR IMM 121 Invalid character in number An invalid character was found in the number specified for a parameter value For example SENS AVER COUN 128 H 123 Exponent too large A numeric parameter was found whose exponent was larger than 32 000 For example SENS COUN 1E34000 124 Too many digits A numeric parameter was found whose mantissa contained more than 255 digits excluding leading zeros 128 Numeric data not allowed A numeric value was received within a command which does not accept a numeric value For example MEM CLE 24 131 Invalid suffix A suffix was incorrectly specified for a numeric parameter You may have misspelled the suffix For example SENS FREQ 200KZ 134 Suffix too long A suffix used contained more than 12 characters For example SENS FREQ 2MHZZZZZZZZZZZ 138 Suffix not allowed A suffix was received following a numeric parameter which does not accept a suffix For example INIT CONT OHz EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 148 Character data not allowed A discrete parameter was received but a character string or a numeric parameter was expected Check the list of parameters to verify that you have used a valid parameter type For example MEM CLE CUSTOM_1 151 Invalid string data
140. ontents of the installed sensor calibration tables DEFAULT Agilent 8483A RCF 100 RCF 94 6 0 1 MHz 100 0 1 MHz 94 110 GHz 100 0 3 MHz 97 9 Agilent 8481A 1 MHz 98 4 RCF 100 3 MHz 98 4 50 MHz 100 10 MHz 99 3 100 MHz 99 8 30 MHz 98 7 2 GHz 99 100 MHz 97 8 3 GHz 98 6 300 MHz 97 5 4 GHz 98 1 GHz 97 2 5 GHz 97 7 2 GHz 96 4 6 GHz 97 4 3 GHz 93 7 GHz 97 1 4 GHz 91 8 GHz 96 6 Agilent 8481D 9 GHz 96 2 RCF 99 10 GHz 95 4 50 MHz 99 11 GHz 94 9 500 MHz 99 5 12 4 GHz 94 3 1 GHz 99 4 13 GHz 94 3 2 GHz 99 5 14 GHz 93 2 3 GHz 98 6 15 GHz 93 4 GHz 98 6 16 GHz 93 5 GHz 98 5 17 GHz 92 7 6 GHz 98 5 18 GHz 91 8 7 GHz 98 6 Agilent 8482A 8 GHz 98 7 RCF 98 9 GHz 99 5 0 1 MHz 98 10 GHz 98 6 0 3 MHz 99 5 11 GHz 98 7 1 MHz 99 3 12 GHz 99 3 MHz 98 5 12 4 GHz 99 1 10 MHz 98 5 13 GHz 98 9 30 MHz 98 1 14 GHz 99 4 100 MHz 97 6 15 GHz 98 9 300 MHz 97 5 16 GHz 99 1 1 GHz 97 17 GHz 98 4 2 GHz 95 18 GHz 100 1 3 GHz 93 4 2 GHz 91 182 EPM P Series Peak and Average Power Meters User s Guide Using 8480 Series Power Sensors 6
141. or BUS anda READ or MEASure was attempted expecting TRIG SOUR to be set to IMMediate 220 Parameter error Frequency list must be in ascending order Indicates that the frequencies entered using the MEMory TABLe FREQuency command are not in ascending order 221 Settings conflict This message occurs under a variety of conflicting conditions The following list gives a few examples of where this error may occur Ifthe READ parameters do not match the current settings e Ifyou are in fast mode and attempting to switch on for example averaging duty cycle or limits Trying to clear a sensor calibration table when none is selected 221 Settings conflict DTR DSR not available on RS422 DTR DSR is only available on the RS232 interface 222 Data out of range A numeric parameter value is outside the valid range for the command For example SENS FREQ 2KHZ 224 Illegal parameter value A discrete parameter was received which was not a valid choice for the command You may have used an invalid parameter choice For example TRIG SOUR EXT 226 Lists not same length This occurs when SENSe CORRection CSET 1 CSET2 STATe is set to ON and the frequency and calibration offset lists do not correspond in length EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 230 Data corrupt or stale This occurs when a FETC is attempted and either a reset has been received or the power meter state has changed suc
142. oth front and rear inputs You cannot connect two power sensors to the one channel input In this instance the power meter detects power sensors connected to both it s front and rear channel inputs EPM P Series Peak and Average Power Meters User s Guide 221 8 222 Maintenance 321 Out of memory The power meter required more memory than was available to run an internal operation 330 Self test Failed The 330 Self test Failed errors indicate that you have a problem with your power meter Refer to see Contacting Agilent Technologies on page 226 for details of what to do with your faulty power meter 330 Self test Failed Measurement Channel Fault Refer to see Measurement Assemblies on page 210 if you require a description of the Measurement Assembly test 330 Self test Failed Measurement Channel A Fault Refer to see Measurement Assemblies on page 210 if you require a description of the Measurement Assembly test 330 Self test Failed Measurement Channel B Fault Refer to see Measurement Assemblies on page 210 if you require a description of the Measurement Assembly test 330 Self test Failed Lithium Battery Fault Refer to see Lithium Battery on page 210 if you require a description of the battery test 330 Self test Failed Calibrator Fault Refer to see Calibrator on page 211 if you require a description of the calibra
143. ots ensuring the same time slot is measured in the next frame Also trigger hysteresis is included to prevent small power transitions during the burst causing re triggering 116 Acqn Cont Trig Source Int internal Level 20 dBm EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Parameters Setting Mode Normal Slope rising Delay 20 us Holdoff 4275 us Hysteresis 0 0 dB Output Off EA The display is setup for a single numeric window and a trace window Upper Window Trace Lower Window Single Numeric Meas The trace window is configured to show the RF burst from 40 us ahead of the trigger for a duration of 700 us The single numeric window is configured to display the average power in gate 1 Upper Window Trace Max 20 dBm Min 35 dBm Start 40 us Length 700 us Lower Window Upper Line Gate 1 Average measurement Lower Line Gate 1 Peak to average measurement TIP If you require faster measurement speed set the Filter to MAN Channel Setup screen and reduce the filter value Conversely if you are measuring low power levels and want to improve the stability of the measurements increase the filter value Increasing the filter value however reduces the measurement speed The maximum power level for the E9320 E Series power sensors is 20 dBm Attenuation may be required when directly measu
144. ow 1 Press Mees Rel Offset to display the Rel Offset menu 2 Press Offset to highlight On 3 Press Offset to display the Offset pop up The current offset value is shown below the Offset softkey Display Offset gt ay 000 000 Figure 2 6 Offset Pop Up Use the and keys to select and change the values as required 4 Confirm your choice by pressing dB 5 Press Done to complete the offset entry If either a channel or a display offset is set is displayed EPM P Series Peak and Average Power Meters User s Guide 41 2 General Power Meter Functions RMT TLK 50 0MHz Ofs A 46 16 46 16dBm 70 000dBm 20 000dBm Figure 2 7 Offset applied The symbol is not displayed when the associated measurement is displayed in Dual Numeric Trace or Analog format The display offset is a function of the window Any of the four measurement display lines can have its own offset 42 EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Setting Frequency Dependent Offsets Frequency dependent offset tables provide a quick and convenient method of compensating for frequency related changes in the response of your test system Note that when selected frequency dependent offset corrections are applied IN ADDITION to any correction for sensor frequency response The power meter is capable of storing 10 frequency dependent offset tables of up to 80 frequency point
145. ower Meters User s Guide Certification Warranty Limitation of Warranty Agilent Technologies certifies that this product met its published specifications at the time of shipment from the factory Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the Institute s calibration facility and to the calibration facilities of other International Standards Organization members This Agilent Technologies instrument product is warranted against defects in material and workmanship for a period of one year from date of shipment During the warranty period Agilent Technologies will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned to a service facility designated by Agilent Technologies Buyer shall prepay shipping charges to Agilent Technologies and Agilent Technologies shall pay shipping charges duties and taxes for products returned to Aglent Technologies from another country Agilent Technologies warrants that its software and firmware designated by Agilent Technologies for use with an instrument will execute its programming instructions when properly installed on that instrument Agilent Technologies does not warrant that the operation of the instrument or firmware will be uninterrupted or error free The foregoing warranty sha
146. power sensors is ideally suited to the average power measurement of these signals The sensors have wide dynamic range 80 dB max sensor dependent and are bandwidth independent Some signal modulation formats such as orthogonal frequency division multiplexing OFDM and CDMA have large crest factors The E Series E9300 1 4A power sensors can measure 20 dBm average power even in the presence of 13 dB peaks but the peak pulse duration must be less than 10 microseconds For high power applications such as base station testing the E9300 1B and E9300 1H are recommended EPM P Series Peak and Average Power Meters User s Guide 147 4 Using E9300 E Series Power Sensors CDMA Signal Measurements Figure 4 81 and Figure 4 82 show typical results obtained when measuring a CDMA signal In these examples the error is determined by measuring the source at the amplitude of interest with and without CDMA modulation adding attenuation until the difference between the two values stops changing The CW sensor in Figure 4 81 uses correction factors to correct for power levels beyond its square law operating region Lower Range Error Upper Range Error A CW Sensor Error a 5 uo Power dBm Figure 4 81 Wideband CDMA Error of E Series E9300 power sensor versus corrected CW sensor Lower Range Error Upper Range Error Modulation Error dB E9300 E Series power sensor only shown Power dBm
147. r Level 009 000 Figure 3 45 Trigger Level Pop Up Complete the entry by pressing dBm EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Delay The current setting is displayed below the Delay label The delay time is applied between the trigger event and all the gate start times This allows you to timeshift all the gates by the same amount with one setting change A delay of up to one second can be entered To change the setting press Delay and use the e and keys to enter the new value gt ay 000 000 Figure 3 46 Trigger Delay Pop Up Complete the entry by pressing _ MS or US Press to display the second menu page Settings Rising edge trigger Figure 3 47 Trigger Setting Menu 2 of 2 EPM P Series Peak and Average Power Meters User s Guide 93 3 94 Using E9320 E Series Power Sensors Slope Holdoff The current setting is displayed below the Slope label and the or f symbol is displayed in single numeric display mode and f is used to generate the trigger from an increasing power level Similarly and is used to generate the trigger from a decreasing power level or external TTL transition To change the setting press Slope to highlight or as required The current setting is displayed below the Holdoff label After a trigger event occurs the trigger mechanism is disabled for the configured tim
148. r Meters User s Guide 127 3 128 Using E9320 E Series Power Sensors Measuring Bluetooth The Bluetooth configuration is available by pressing Fes and using the and keys to select Bluetooth Pressing Confirm completes the process The preinstalled setup configures the power meter for peak and average power measurements in a single Bluetooth DH1 data burst Triggering is achieved using the rising edge of the burst The measurement gate is configured to measure the peak and average power in a 366 us period 0 2 us after the trigger The display Figure 3 72 is configured to show the peak and average power in the lower window in numeric format while the upper window shows the power trace over 6 time slots starting 50 us before the trigger Resor 1zZ84 35 000dBm Hnis y Al 10 04aBm Ani Mir aaa 9 92 apm Seating Figure 3 72 Bluetooth Measurement Display EPM P Series Peak and Average Power Meters User s Guide Table 3 17 Bluetooth Configurations Parameters Using E9320 E Series Power Sensors 3 Setting The E9321A and E9325A are not recommended due to lack of bandwidth After a Preset Video B W defaults to High for all sensors Sensor Mode Normal Range AUTO Filter AUTO Offset Off Frequency 2400 MHz FDO Table Off Video Avg Off Video B W E9322A E9326A Low E9323A E9327A Low Step Detect On Gates Only one gate is s
149. r the frequency of the signal you are measuring The power meter automatically selects and applies the calibration factor from the selected table EPM P Series Peak and Average Power Meters User s Guide 167 6 Using 8480 Series Power Sensors Frequency Specific Calibration Factors This section shows you how to make a measurement using the calibration factor for the frequency of the signal you want to measure TIP This method is best suited to making several measurements at one frequency as you need only enter a small amount of data Using this method requires the following steps 1 Zero and calibrate the power meter sensor combination 2 Set the calibration factor value for the frequency of the signal you want to measure 3 Make the measurement Procedure First select and enter the reference calibration factor for the sensor you are using as follows 1 Ensure the power sensor is disconnected from any signal source 2 Refer to the connection requirements in Table 6 22 and ensure the sensor is ready for connection to the Power Reference 3 Check the current reference calibration factor setting by pressing E More The value is displayed under the channel Ref CF softkey Does this setting match the value for the sensor The power sensor reference calibration factor can normally be found above the calibration factors table on the power sensor body 4 If required change this setting by pressing the channel Ref CF T
150. r you can set the power meter to auto filter mode The default is AUTO When the auto filter mode is enabled the power meter automatically sets the number of readings averaged together to satisfy the filtering requirements for most power measurements The number of readings averaged together depends on the resolution and the power level currently being measured Resolution Setting Minimum Sensor Power 1 2 3 4 10 dB 1 8 128 128 Fe a eae oie ee ee i ee eee i ee ee 10 dB 1 1 16 256 5 2 o 52 gt c 2 no o aian 10 dB 1 1 2 32 n 2 D ee A E E E E E EEA lt ZS S Z 10 dB 1 1 1 16 S Maximum Sensor Power Figure 2 12 Averaged Readings Figure 2 12 shows the typical number of readings averaged for each range and resolution when the power meter is in auto filter mode and is set to normal speed mode The EPM P Series power meters recognize different sensor types when they are connected and configure suitable averaging automatically EPM P Series Peak and Average Power Meters User s Guide 49 2 50 General Power Meter Functions Resolution is a measurement display function and not a channel function In the case where a channel is set up in both the upper and lower window and the resolution settings are different the highest resolution setting is taken to calculate the averaging number These four resolution levels represent e 1 0 1 0 01 0 001 dB respectively if the measurement suffix is dBm or dB e 1 2 3 or 4
151. race EPM P Series Peak and Average Power Meters User s Guide 15 1 Introduction To indicate an off screen trigger event 4 or is displayed To indicate an off screen trigger point lt b or ds is displayed Gate timing parameters are all related to your chosen trigger point This may be different from the timing of the triggering event if you have configured a trigger delay Refer to item 26 for more information Trace Ctrl Vertical Horizontal Max 3 00dBm 250us Min 20 00dBm Length 1 00ms The Trace Ctrl screen is accessed by pressing Trace Control from the Gate Ctrl menu or by pressing Trace Control from the Trace Setup menu 27 Pressing Gate scrolls through the four gates available for each channel The selected gate number is repeated in the upper left corner of the window 28 The markers 1 and 2 indicate the start and end points of the selected gate 29 The vertical table shows the amplitude scaling of the trace display The horizontal table shows the scale and start point relative to the measurement trigger of the trace 30 You can change any of the horizontal or vertical trace values using the fs or I softkeys having first selected the parameter using the F f and w keys 16 EPM P Series Peak and Average Power Meters User s Guide Introduction 1 Window Symbols There are a number of different graphic symbols and pop up windows that can occur on the power meter display These can occur for a v
152. rage Power Meters User s Guide 213 8 214 Maintenance To read the error queue from the remote interface use e the SYSTem ERRor command Error queue messages have the following format Error Error Device Number O Description C gt Dependent Info rO Figure 8 111 Error Queue Message For example 330 Self test Failed Battery Fault Errors are retrieved in a first in first out FIFO order If more than 30 errors occur the error queue overflows and the last error in the queue is replaced with error 350 Queue Overflow Any time the queue overflows the most recent error is discarded When the errors are read they are removed from the error queue This opens a position at the end of the queue for a new error message if one is subsequently detected When all errors have been read from the queue further error queries return 0 No errors To delete all the errors in the queue from the front panel press f Sstem Error List and use Clear Errors To delete all the errors in the queue remotely use e the CLS clear status command The error queue is also cleared when the instrument power has been switched off EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 Error Message List 101 Invalid character An invalid character was found in the command string You may have inserted a character suchas or inthe comma
153. rage power in the following 15 ms pulse The display is configured to show the peak to average ratio within the data pulse and the average power in the entire 90 ms frame on two display lines in the lower window while the upper window shows the average power in a 15 ms data pulse All displays are numeric EPM P Series Peak and Average Power Meters User s Guide 125 3 126 Using E9320 E Series Power Sensors Table 3 16 iDEN Configuration Parameters Setting Channeli The narrow bandwidth of the iDEN signal requires only the 30 kHz bandwidth of the E9321A and E9325A sensors in the Low setting and these are best suited Other E9320 sensors may be used in their lowest setting but they provide less dynamic range and low level stability Sensor Mode Normal Range AUTO Filter AUTO Offset off Frequency 800 MHz FDO Table off Video Avg off Video B W E9321A E9325A Low E9322A E9326A Low E9323A E9327A Low Step Detect On Gates Two gates are configured as follows Gate1 Start 10 us Length 15 ms Gate2 Start Os Length 90 ms Gate3 Start 0 Length 0 Gate4 Start 0 Length 0 Trigger The trigger is now configured for a power level of 20 dBm on a rising edge Auto level triggering is also be used A trigger hold off is also setup to ensure the power meter is not re triggered by the data pulse following the training pulse
154. re 2 11 Edit Offset Screen with Some Added Data Enter or edit the frequency and offset pairs as follows 5 Press Insert to add a new frequency value or use the fe and keys to select the frequency value in the table 6 Enter the value or press Change and use the and E keys to enter the required frequency Complete the entry by pressing the GHz MHz keys EPM P Series Peak and Average Power Meters User s Guide 47 2 General Power Meter Functions 7 Enter the offset using the gt and keys Complete the entry by pressing the key Continue adding editing values until you have entered all the data you require 8 When you have finished editing the table press Done to save the table Both single and dual channel power meters with variety of rear panel configurations have been used for the illustrations in this guide Your power meter may differ in detail to those shown 48 EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Setting Averaging The power meter uses a digital filter to average power readings The number of readings averaged can range from 1 to 1024 This filter is used to reduce noise obtain the desired resolution and to reduce the jitter in the measurement results Increasing the value of the filter length reduces measurement noise However the time to take the measurement is increased You can select the filter length o
155. reduce the steps required to carry out the zero and calibration procedure as follows e Connect the power sensor to the POWER REF output e Press and Zero Cal For dual channel meters press Zero Cal Zero Cal A or Zero Cal B as required Now set the frequency of the signal you want to measure The power meter automatically selects the appropriate calibration factor EPM P Series Peak and Average Power Meters User s Guide 161 5 Using E4410 E Series Power Sensors 5 Press erecvensy and the channel Freq softkey to display the pop up oe Frequenc 100 000 Figure 5 86 Frequency Pop up Window 6 Use the and keys to enter the frequency of the signal you want to measure 7 Press GHZ or MHZ as required to complete the entry Now make the measurement 8 Connect the power sensor to the signal to be measured The corrected measurement result is displayed 162 EPM P Series Peak and Average Power Meters User s Guide EPM P Series Peak and Average Power Meters User s Guide 6 Using 8480 Series Power Sensors Introduction 164 Power Meter Configuration 165 Measurement Accuracy 167 Frequency Specific Calibration Factors 168 Sensor Calibration Tables 174 phe Agilent Technologies 163 6 Using 8480 Series Power Sensors Introduction 164 The 8480 Series offers a wide range of both thermocouple and diode based power sensors Many have very specific applications for example the 110 GH
156. reement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license Restricted Rights Legend U S Government Restricted Rights Soft ware and technical data rights granted to the federal government include only those rights customarily provided to end user cus tomers Agilent provides this customary commercial license in Software and techni cal data pursuant to FAR 12 211 Technical Data and 12 212 Computer Software and for the Department of Defense DFARS 252 227 7015 Technical Data Commercial Items and DFARS 227 7202 3 Rights in Commercial Computer Software or Com puter Software Documentation Safety Notices CAUTION A CAUTION notice denotes a haz ard It calls attention to an operat ing procedure practice or the like that if not correctly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indi cated conditions are fully under stood and met A WARNING notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly per formed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated condi tions are fully understood and met EPM P Series Peak and Average P
157. requency of the signal you want to measure 7 Press GHz or MHz as required to complete the entry Now make the measurement 8 Connect the power sensor to the signal to be measured The corrected measurement result is displayed N8480 Series Power Sensors with Option CFT Similiar to the 8480 Series sensors the N8480 Series power sensors with Option CFT needs to apply corrections when making measurements across frequency as well Therefore you are required to enter calibration factor manually The calibration factor table written into Electrically Eraseable Programmable Read Only Memory EEPROM is not applicable for N8480 Series power sensors with Option CFT Therefore the response of each sensor is measured during manufacture and during periodic calibration and the resulting frequency compensation information is supplied in the form of calibration factors The EPM P Series peak power meters provide two methods of using the calibration factors e inputting the individual calibration factor for a frequency prior to making the measurement or EPM P Series Peak and Average Power Meters User s Guide Using N8480 Series Power Sensors 7 e using sensor calibration tables If you are making most of your measurements at a single frequency or ina narrow range of frequencies entering a specific calibration factor is a more effective method Only a minimal amount of data entry is required However if you are making measurements on
158. requency verification can be made When the power meter is preset or power cycled the routing is removed EPM P Series Peak and Average Power Meters User s Guide 211 8 Maintenance Fast Path Accuracy This test requires specialized test equipment and is beyond the scope of this guide Please refer to the EPM P Series Power Meters Service Guide 212 EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 Error Messages Introduction This section contains information about error messages It explains how to read the power meter s error queue and lists all error messages and their probable causes When there is a hardware related problem for example a power sensor overload the error message is displayed on the status line at the top of the display In addition the errors are also written to the error queue If there are any errors in the error queue the front panel error indicator is displayed as shown in Figure 8 110 Other errors can also be generated when the power meter is being operated over the remote interface These errors also display the error indicator and are written to the error queue Error Indicator RMT TLK Contrast 50 0MHz Dty Cyc 37 80 cen 37 80dBm 70 000dBm 70 000dBm Figure 8 110Error Indicator Position To read the error queue from the front panel e Press En Error List and use Next to scroll through each error message EPM P Series Peak and Ave
159. rformance and apply after a 30 minutes warm up These specifications are valid over the power meter s operating and environmental range unless otherwise stated and after performing a zero and calibration procedure Supplemental characteristics shown in italics are intended to provide information useful in applying the power meter by giving typical expected but nonwarranted performance parameters These characteristics are shown in italics or denoted as typical nominal or approximate Measurement uncertainties for information on measurement uncertainty calculations refer to Agilent Application Note 64 1 Fundamentals of RF and Microwave Power Measurements Literature Number 5965 6380E Compatibility the EPM P Series power meters operate with the E9320 E Series family of power sensors for peak average and time gated measurements The EPM P Series meters also operate with existing 8480 Series E4410 E Series E9300 E Series and N8480 Series ranges of power sensors for average power measurements Measurement Modes the EPM P Series power meters have two measurement modes e Normal mode default mode using E9320 E Series sensors for peak average and time related measurements e Average only mode this mode is primarily for average power measurements on low level signals when using E9320 E Series sensors and is the mode used with 8480 Series E4410 E Series E9300 E Series and N8480 Series range of po
160. ries Peak and Average Power Meters User s Guide xv xvi Figure 3 51 Lower Window Lower Measurement Setup 98 Figure 3 52 Measurement Set Up Example 99 Figure 3 53 Measurement Example Display 99 Figure 3 54 Analog Display in Lower Window 100 Figure 3 55 Meter Maximum Pop Up 100 Figure 3 56 Meter Minimum Pop Up 101 Figure 3 57 Trace Display in Lower Window 102 Figure 3 58 Trace Maximum Pop Up 102 Figure 3 59 Gate Control Menu and Display 103 Figure 3 60 E Series E9320 Power Sensor Default Channel Setup 104 Figure 3 61 Trigger Menu Free Run Mode 105 Figure 3 62 Gate Control Menu and Display 105 Figure 3 63 Trigger Marker Negative Delay 106 Figure 3 64 Trace Control Display 107 Figure 3 65 Bluetooth Signal with Markers Shown 108 Figure 3 66 Measurement Example Measurement Display 113 Figure 3 67 Preset Selection Display 114 Figure 3 68 GSM Measurement Display 115 Figure 3 69 EDGE Measurement Display 118 Figure 3 70 Full Rate Frame 121 Figure 3 71 NADC Measurement Display 122 Figure 3 72 Bluetooth Measurement Display 128 Figure 3 73 Markers on a Bluetooth Measurement 131 Figure 3 74 cdmaOne Measurement Display 132 Figure 3 75 W CDMA Measurement Display 135 Figure 3 76 Typical cdma2000 Measurement Display 138 EPM P Series Peak and Average Power Meters User s Guide Figure 4 77 E9300 E Series Auto Averaging Settings 143 Figure 4 78 E9300 E Series Sensor Default Channel Setup 144 Figure 4 79 Frequency Pop Up Window 146 Fi
161. ring GSM transmitter output Enter the value of the attenuation as an Offset se J Meas Select to correct the displayed measurement result EPM P Series Peak and Average Power Meters User s Guide 117 3 118 Using E9320 E Series Power Sensors Measuring EDGE B The EDGE configuration is available by pressing and using the the and keys to select EDGE Pressing Confirm completes the process Enhanced Data for Global Evolution or Enhanced Data for GSM Evolution is an enhancement of the GSM standard The modulation scheme is 8PSK As Edge does not have constant amplitude GMSK modulation like GSM peak to average ratio may be of interest The preinstalled setup configures the power meter for average and peak to average power measurements in a GSM RF burst Triggering is achieved using the rising edge of the burst The useful part of the GSM burst lasts for 542 8 us with a rise time of 28 us As the power meter triggers during the rising power transition the measurement gate is configured to measure the average power in a 520 us period 20 us after triggering The display Figure 3 69 is configured to show the peak and peak to average results in the lower window in numeric format while the upper window shows the power trace starting 40 us before the trigger RMT TLK A 20 000dBm Resolior 1284 35 000dBm 9 56 aBm Units I Anij Mtr 3 0 4p Seatiess Figure 3 69 EDGE Measurement Display EPM P Series Pe
162. s Channel The Channel Setup screen is displayed Select the channel you want to configure and use the and keys to select any parameters you want to change Press Change to configure the required settings RMT TLK Input Set Channel Setup Sensor Mode Range Filter Duty Cycle Offset Frequency CF Table FDO Table Video Avg Video BiW Step Detect Normal AUTO AUTO 258 Off LBG Off 8 8608 50 000MHz Off Off Off 4 Off On Figure 3 38 E Series E9320 Power Sensor Default Channel Setup Sensor Mode Normal enables peak peak to average and average measurements and is suitable for making time gated measurements AVG only is suitable for measuring the average power of a lower level signal only If used above 20 dBm it will give accurate results for CW signals only EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Range The power sensors have a high and low range When in autorange mode the correct range for the measurement is selected automatically In Free Run acquisition mode the range is selected to be suitable for the input signal If the signal rises sharply through a range threshold while a measurement is being made the range is changed and a new measurement made In a triggered acquisition mode Cont Trig or Sing Trig the sensor may switch range from low to high on the rising edge of a pulse or from high to low on the tr
163. s Time between input detection and start of zero cal cycle This is determined by the Max 50 ms typical number of averages x sample rate or if there is an existing zero cal operation in Min 0 ms progress the time for this current operation to complete Note that the worst case is 1024 averages x 50 ms 51 2 s For front panel operation in free run mode the time is 1x50 ms Maximum width of input Longer inputs may cause a subsequent zero cal operation 4s T4 some time after the current one is complete Time for zero cal operation to complete Zero Both dual channel meters is a sequential operation and requires double that of single channel meters EPM P Series Peak and Average Power Meters User s Guide Zero 10s 8480 Series 12 s E Series 45 s E9320 Series 22 s N8480 Series excluding Option CFT 8 s N8480 Series with Option CFT 31 2 General Power Meter Functions Table 2 3 TTL Inputs Timing Diagram 1 Timing of zero cal inputs for conditions 01 and 10 Operation T1 T2 _ T3 gt T4 All timings based on 100 ms firmware polling 32 Cal 6s 8480 Series 7 s E Series 15 s E9320 Series 10 s N8480 Series excluding Option CFT 7 s N8480 Series with Option CFT EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Table 2 4 TTL Inputs Timing Diagram 2 Timing of zero cal inputs for condit
164. s E4410 power sensor for specification and calibration information EPM P Series Peak and Average Power Meters User s Guide Power Meter Configuration The EPMP Series power meters automatically recognize an E Series E4410 power sensor when it is connected The sensor calibration data is Using E4410 E Series Power Sensors 5 automatically read by the power meter Also the power meter automatically configures the averaging as shown in Figure 5 84 Maximum Sensor Power Resolution Setting Power Sensor Dynamic Range Minimum Sensor Power Figure 5 84 E Series CW sensor Auto averaging settings 2 3 4 1 1 8 1 1 16 1 2 32 1 16 256 8 128 128 safesany jo saquinyl These values are valid only for the power meter channel connected to the E Series E4410 power sensor and only while the sensor is connected Averaging settings can also be manually configured EPM P Series Peak and Average Power Meters User s Guide 159 5 160 Using E4410 E Series Power Sensors Default Channel Setup When an E Series E4410 power sensor is connected the following Channel Setup is automatically configured Carrying out a Preset returns the channel to this configuration Any changes made to the Channel Setup are retained through a power cycle RMT TLK Channel Setup Sensor Mode Range Filter Duty Cycle Offset Frequency CF Table FDO Table Video Avg Video BAW Step Detect Figure 5 85 E Series CW sensor
165. s and N8480 Series Power Sensors with Option CFT 25 Zero Cal Lockout 29 Zeroing and Calibrating Using TTL Inputs 30 Setting the Units of Measurement 34 Selecting Units of Measurement from the Softkeys 35 EPM P Series Peak and Average Power Meters User s Guide Setting the Resolution 36 Making Relative Measurements 37 Setting Offsets 39 Setting Channel Offsets 39 Setting Display Offsets 41 Setting Frequency Dependent Offsets 43 Setting Averaging 49 Step Detection 51 Setting Measurement Limits 52 Setting Limits 53 Checking for Limit Failures 57 Setting the Range 59 Scaling the Analog Display 60 Recorder Output 62 Saving and Recalling Power Meter Configurations 65 Measuring Pulsed Signals 67 Presetting the Power Meter 70 Preset Conditions 70 3 Using E9320 E Series Power Sensors Introduction 76 Power Meter Configuration 78 Default Channel Setup 78 Measurement Method 79 Measurement Display 80 Configuring a Peak Power Measurement 82 The Set Up Process 83 Setting Up Using Data Entry 83 Setting Up Using Trace Markers 103 Measurement Example 109 Using Preinstalled Measurement Setups 114 Measuring GSM 115 Measuring EDGE 118 Measuring NADC 121 Measuring iDEN 125 Measuring Bluetooth 128 EPM P Series Peak and Average Power Meters User s Guide Measuring cdmaOne_ 132 Measuring W CDMA 135 Measuring cdma2000 138 4 Using E9300 E Series Power Sensors Introduction 142 Power Meter Configuration 143 Default Channel Setup 144 Measurement Ac
166. s and refer to Step 3 The Trigger Setup on page 90 to configure a suitable trigger You can also configure trigger delay timing using markers EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Ferrini d Acqn Free Run 38 82dBm Avg Y Ho 20 000dBm Figure 3 61 Trigger Menu Free Run Mode hanne Gate To access the gate control menu press pa Gates Gate Control Trace Markers 5 67dBm 4 32dBm 1 34dB Figure 3 62 Gate Control Menu and Display Gate Pressing Gate scrolls through the four gates available for each channel The gate displayed is highlighted below the Gate softkey and also in the channel gate annotation in the top left of the display Select Pressing Select displays the gate or trigger markers EPM P Series Peak and Average Power Meters User s Guide 105 3 Using E9320 E Series Power Sensors Mrks Tgdel When Mrks is selected markers 1 and 2 indicate the start and end points of the measurement gate When Tgdel is selected you can adjust the trigger delay Again refer to Step 3 The Trigger Setup on page 90 for more detail Your chosen trigger point is used as the reference point for the timing of all the measurement gates Al f Ks Trigger Markers 1 Time 25 8us Pow 31 91dBm Avg 7 58dBm 58dBm Pk Avg 3 15dB 2Time 120us 4 43dBm Pow 4 Figure 3 63 Trigger Marker Negative Delay
167. s each To use frequency dependent offset tables 1 Select the table to be applied to a channel Refer to Selecting a Frequency Dependent Offset Table on page 44 for further information If you require to edit the table refer to Editing Frequency Dependent Offset Tables on page 46 for further information 2 Zero and calibrate the power meter The reference calibration factor used during the calibration is automatically set by the power meter from the sensor calibration table if selected 3 Specify the frequency of the signal you want to measure The calibration factor offset is automatically set by the power meter from the sensor calibration table if selected and the frequency dependent offset table Refer to Procedure on page 44 for further information 4 Make the measurement EPM P Series Peak and Average Power Meters User s Guide 43 2 44 General Power Meter Functions Selecting a Frequency Dependent Offset Table You can select a frequency dependent offset table from the key menu or the rere The State column indicates if any frequency dependent offset tables are currently selected The Offset Tbls screen is shown in Figure 2 8 RMT TLK Thi Name State Pts off CUSTOM_B off CUSTOM_C off CUSTOM_D off CUSTOM_E off CUSTOM_F off CUSTOM_G off CUSTOM_H off CUSTOM off CUSTOM_J off an A B C D E F G H l J Figure 2 8 Offset Tables Procedure Select an offset table as follo
168. s the Preset The arrow keys are used to select and change parameters such as instrument state names and offset values EPM P Series Peak and Average Power Meters User s Guide Introduction These keys and connectors are associated with the measurement channels and are located on the right hand side of the front panel Key Function Press this key to access the input frequency and sensor calibration factor menus Use these functions to improve the accuracy of your measurement Zero Press this key to access the zero and calibration menus Use these functions to improve the accuracy of your measurement Connector Function POWER REF O The power reference is a 1 mW 0 dBm 50 MHz signal O available from a 50 Q type N connector It is used for calibrating the sensor and meter system If the meter is configured with Option 003 the connector is fitted to the rear panel The Green LED beside the connector is lit when the calibrator is turned on CHANNEL The sensor input connectors The E4417A has two inputs the E4416A has one input as shown in the photograph If the meter is configured with Option 002 or Option 003 the connectors are fitted to the rear panel OO EPM P Series Peak and Average Power Meters User s Guide 1 1 Introduction The Display Layout The following figure details the display layout when the two windows are configured in the dual numeric mode Other display formats are available by
169. s user s guide shows you how to operate your EPM P Series power meter using the front panel interface to make measurements with the E9320 E Series E9300 E Series E4410 E Series 8480 Series and N8480 Series power sensors Some EPM P Series power meter features and capabilities depend on the type of power sensor connected Other features are general and independent of the power sensor This user s guide is there for divided into three main blocks e Chapters 1 and 2 show you the main EPM P power meter functions These functions are typically independent of the connected sensor type e Chapters 3 4 5 6 and 7 show you how to use the EPM P power meters with each of the five sensor families e Chapters 8 and 9 describe general maintenance and specifications For remote programming information refer to the EPM P Series Power Meter Programming Guide EPM P Series Peak and Average Power Meters User s Guide 3 1 Introduction Conventions Used in this Guide The following conventions are used throughout this guide Channel Softkey Message Parameter Channel This symbol and text represents a labeled key on the power meter front panel This symbol and text represents a labeled softkey and is used to indicate you should press the unmarked key beside the displayed text This symbol and text represents a displayed message This is used to represent a parameter value or title This user s guide describes the operat
170. saquinyy These values are valid only for the power meter channel connected to the E Series E9300 power sensor and only while the sensor is connected You can also configure the settings manually refer to Achieving Stable Results with TDMA Signals on page 150 if required EPM P Series Peak and Average Power Meters User s Guide 143 4 144 Using E9300 E Series Power Sensors Default Channel Setup When an E Series E9300 power sensor is connected the following Channel Setup is automatically configured Carrying out a Preset returns the power meter to this configuration Any changes made to the Channel Setup are retained after a power cycle RMT TLK Input Set Channel Setup Sensor Mode yG only Range Be Filter AUTO 28 Duty Cycle Off 1GBE Offset Off Geari Frequency 50 000MHz CF Table ci FDO Table off Video Avgi F 4 Video B W GE Step Detect On Figure 4 78 E9300 E Series Sensor Default Channel Setup EPM P Series Peak and Average Power Meters User s Guide Using E9300 E Series Power Sensors 4 Measurement Accuracy Power sensors have small errors in their response over frequency The response of each sensor is measured during manufacture to determine correction factors With E Series power sensors correction factors are held in Electrically Erasable Programmable Read Only Memory EEPROM and are downloaded to the power meter automatically Using calibration factors enables improve
171. significant digits respectively if the measurement suffix is W or Procedure Set averaging as follows 1 Press and select the channel you want to set up The current Filter setting AUTO MAN or OFF is shown on the Channel Setup screen 2 Use the fe and keys to select the Filter setting 3 Press Change to step through the available settings If you have selected AUTO or OFF proceed at step 7 If you have selected MAN proceed as follows 4 Use the fe and keys to select the Filter value 5 Press Change to display the Filter Length pop up Filter Length gt ay oooi Figure 2 13 Filter Length Pop Up 6 Use the fe and keys to enter the required value and press Enter 7 Press Done to close the Channel Setup screen EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Step Detection To reduce the filter settling time after a significant step in the measured power the filter can be set to reinitialize upon detection of a step increase decrease in the measured power Step detection can be set in both manual and automatic filter modes Procedure Set step detection as follows 1 Press ea On dual channel meters select the required channel 2 Use the and keys to select the Step Detect setting 3 Press Change to set step detection On or Off as required 4 Press Done EPM P Series Peak and Average Power Meters User s Guide 51 2
172. sing the and keys to select cdma2000 Pressing Confirm completes the process The preinstalled setup configures the power meter for a continuous power measurement on a cdma2000 signal Peak and peak to average power measurements are made over a defined and statistically valid number of samples With gated 10 ms measurements corresponding to 200 000 samples there is less than a 0 01 probability that there are no peaks above the measured peak value The display Figure 3 76 is configured to show the peak the average and the peak to average ratio Resplitior rza 4 94aBm aie Ani Mir 5 1 34B Seating Figure 3 76 Typical cdma2000 Measurement Display EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 Table 3 20 cdma2000 Configurations Parameters Setting With 5 MHz bandwidth the E9323A and E9327A sensors are best suited The E9321A E9322A E9325A and E9326A sensors are not recommended due to their lack of bandwidth 5 MHz required After a Preset Video B W defaults to High for all sensors Sensor Mode Normal Range AUTO Filter AUTO Offset Off Frequency 1900 MHz FDO Table Off Video Avg Off Video B W E9323A E9327A High Step Detect On Gates Only one gate is set up starting 1 us after the trigger for a duration of 10 ms Gate Start Os Length 10 ms Gate2 Start 0 Length Gate3 Start Length Gate4 Star
173. ss Zero Cal Zero r cal A or Zero r Cal B as required Now set the frequency of the signal you want to measure The power meter automatically selects the appropriate calibration factor 5 Press fFrsauency and the channel Freq softkey to display the pop up window Frequenc Figure 4 79 Frequency Pop Up Window Use the and keys to enter the frequency of the signal you want to measure 6 Press GHz or MHz as required to complete the entry Now make the measurement 7 Reconnect any required attenuators or adaptors and connect the power sensor to the signal to be measured The corrected measurement result is displayed EPM P Series Peak and Average Power Meters User s Guide Using E9300 E Series Power Sensors 4 Measuring Spread Spectrum and Multitone Signals To achieve high data transfer rates within a given bandwidth many transmission schemes are based around phase and amplitude I and Q modulation These include CDMA W CDMA and digital television The signals are characterized by their appearance on a spectrum analyzer display a high amplitude noise like signal of bandwidths up to 20 MHz An 8 MHz bandwidth digital television signal is shown in Figure 4 80 R 306 00 MHz SPAN 12 00 MHz RES BW 100 kHz VBW 1 MHz SWP 20 0 msec AVG CHANNEL POWER average 10 sweeps 16 3 dBm Figure 4 80 Spread Spectrum Signal The diode pair attenuator diode pair architecture of the E9300 E Series
174. ss an E9320A E Series power sensor is connected Is set to Free Run Is set to Run Is set to Int Is set to AutoLvl Is set to 0 0000 s Is set to Is set to 1 0000 us Is set to 0 000 dB Is set to Off Chan Gate and Meas are all inactive and greyed out regardless of sensor type Is set to Single Is set to Off Is set to 0 000 dBm Is set to Off Is set to 0 000 dB Is set to Off Is set to 90 000 dBm EPM P Series Peak and Average Power Meters User s Guide Is set to 90 000 dBm TTL Output Is set to Off Is set to 3 General Power Meter Functions Upper window is set to Single Numeric and the Lower window to Analog Is only available when an E Series sensor or N8480 Series sensor excluding Option CFT is connected and is set to 50 000 MHz 2 Is only available when an 8480 Series sensor or N8480 Series sensor with Option CFT is connected and is set to 100 Is set to Off EPM P Series Peak and Average Power Meters User s Guide Disp Type Resolution Unit Is set to dBm Freq Cal Fac Power Ref 73 2 General Power Meter Functions 74 EPM P Series Peak and Average Power Meters User s Guide EPM P Series Peak and Average Power Meters User s Guide 3 Using E9320 E Series Power Sensors Introduction 76 Power Meter Configuration 78 Configuring a Peak Power Measurement 82 The Set Up Process 83 Measurement Example 109 Using Preinstalled Measurement Setups 114
175. ssage List 215 Operator Maintenance 224 Replacing the Power Line Fuse 224 Contacting Agilent Technologies 226 Before calling Agilent Technologies 226 Check the Basics 226 Instrument serial numbers 227 Sales and Service Offices 229 Returning Your Power Meter for Service 230 9 Specifications and Characteristics Introduction 232 Power Meter Specifications 233 Video Bandwidth Dynamic Range Optimization 234 Accuracy 235 1 mW Power Reference 236 Measurement Characteristics 237 Sampling Characteristics 239 Rear Panel Inputs Outputs 239 Remote Programming 240 xii EPM P Series Peak and Average Power Meters User s Guide Physical Specifications 240 Environmental Specifications 241 Operating Environment 241 Storage Conditions 241 Regulatory Information 242 Electromagnetic Compatibility 242 Product Safety 242 EPM P Series Peak and Average Power Meters User s Guide xiii Figures xiv Figure 2 1 Reference Calibration Factor Pop Up Window 26 Figure 2 2 Rmt 1 0 Port TTL Inputs 30 Figure 2 3 Rel Indicator 37 Figure 2 4 Simplified Measurement Path 39 Figure 2 5 Offset Applied 40 Figure 2 6 Offset Applied 40 Figure 2 7 Offset applied 42 Figure 2 8 Offset Tables 44 Figure 2 9 Frequency Dependent Offset Table Selected 45 Figure 2 10 Frequency Dependent Offset Configured 45 Figure 2 11 Edit Offset Screen with Some Added Data 47 Figure 2 12 Averaged Readings 49 Figure 2 13 Filter Length Pop Up 50 Figure 2 14 Limits Checking Applica
176. surement configuration channel A gate 1 peak power minus gate 3 peak power with a 3 dB display offset to be displayed in the upper measurement line of the lower display window Again the Channel label is disabled as a single channel meter is shown RMT TLK Meas Sel Lower Window Upper Measurement Chan Gate Meas A 1 Peak A 3 Relative Off goggiikn Offset On Figure 3 52 Measurement Set Up Example Press to complete the setup The measurement configuration is also displayed with the results Figure 3 53 shows both the previously configured measurements in the Lower Window AKAS 33 74aBm au 0 03aBm Figure 3 53 Measurement Example Display Continue this process until you have configured all the required numeric displays EPM P Series Peak and Average Power Meters User s Guide 99 3 100 Using E9320 E Series Power Sensors Analog Format Configure a measurement displayed in Analog format as follows e Press F e Use the or C keys to select the analog measurement window e Press Anlg Mtr Scaling LCL TLK 50 0MHz I A Al 6 15dBm Avg Y l 20 000dBm Figure 3 54 Analog Display in Lower Window The Max and Min scale values are shown on the analog display and adjacent to the softkey labels e Press Max and use the and keys to configure the required value in the Meter Maximum pop up window Press dBm mW uW or nW to complete the entry
177. t Length OIO Ol O The trigger is configured for continuous triggering on a rising edge at 10 dBm This results in continuously updated results based on a 10 ms period relating to a position beyond 0 01 on the CCDF curve Acqn Cont Trig Source Int internal Level 10 dBm Mode Auto Level Slope rising Delay 0 EPM P Series Peak and Average Power Meters User s Guide 139 3 140 Using E9320 E Series Power Sensors Parameters Setting Holdoff 0 Hysteresis 0 0 dB Output Off E Displa The display is setup for a single numeric and a dual numeric window Upper window Single Numeric Lower Window Dual Numeric Meas The single numeric window is configured to display the average power The dual numeric window is configured to show the peak power and the peak to average ratio Upper Window Gate 1 Average measurement Lower Window Upper Line Gate 1 Peak measurement Lower Line Gate 1 Peak to average measurement TIP If you require faster measurement speed set the Filter to MAN Channel Setup screen and reduce the filter value Conversely if you are measuring low power levels and want to improve the stability of the measurements increase the filter value Increasing the filter value however reduces the measurement speed The maximum power level for the E9320 E Series power sensors is 20 dBm Atte
178. tem is rearmed only when the input power rises above a level equal to the trigger level plus the configured hysteresis value To change the setting press Hysteresis and the fe and keys to enter the new value Trigger Hysteresis 008 000 Figure 3 49 Trigger Hysteresis Pop Up Complete the entry by pressing dB Output The current setting is displayed below the Output label A TTL level high is produced at the rear panel TRIG OUT BNC connector when the power meter is triggered when On is configured To change the setting press Output to highlight On or Off as required EPM P Series Peak and Average Power Meters User s Guide 95 3 96 Using E9320 E Series Power Sensors Step 4 The Display Setup This step requires that you first check the power meter is set up to show the measurement results in the display format you require e Press t Disp Type to display the first page of the display format menu Al 947 0MHz t A 29 Addem A2 0 01dB Pk Avg Selected window Yy Highlighted Loo 1 761dB Figure 3 50 Display Type Menu e Use the and or keys to select a measurement window Choose the type of display you require from the menu Single Numeric 947 0MHz i A 0 07aBm 0 0 7 dBm ere aeeae laa 0 07 dam 0 42dB Y Dual Numeric Analog Hi 1 761dB EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3
179. tests have an associated error message which is added to the error queue if the test fails The exception to this is the bitmap display test Refer to Error Messages on page 213 for more details ROM Checksum This test calculates the checksum of the firmware and checks it against the predefined checksum stored on the ROM A pass or a fail result is returned RAM This test carries out a read and write test on the instrument RAM Lithium Battery When the firmware is first downloaded a known value is written into a batterybacked memory location This test verifies that the value is still resident It returns a pass if the value is still present otherwise it returns a fail Measurement Assemblies A measurement assembly is requested to automatically run a self test This self test returns either a pass or a fail A fail can either be produced by the measurement assembly self test failing or by the measurement assembly not responding Fan This test confirms that the internal cooling fan is operating Serial Interface Four tests are available for the serial interface UART configuration local loop back RS232 loop back and RS422 loop back Both the RS232 and RS422 loop back tests require a specially wired connector refer to the EPM P Series Power Meter Service Guide EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 e UART Configuration confirms that the baud rate stop bits and parity setti
180. the GHz _ or MHZ keys 7 Enter additional frequency calibration factor pairs by pressing Insert when the Edit Cal screen is displayed You are prompted to enter the frequency first followed by the respective calibration factor The power meter automatically sets up the table in frequency ascending order 8 When you have finished editing the table press Done 9 Use the fe and keys and the channel Table Off On to allocate the new table to the measurement channel 10 Press Done to complete the editing process and save the table Ensure that the frequency points you use cover the frequency range of the signals you want to measure If you measure a signal with a frequency outside the frequency range defined in the sensor calibration table the power meter uses the highest or lowest frequency point in the sensor calibration table to calculate the calibration factor EPM P Series Peak and Average Power Meters User s Guide 203 7 Using N8480 Series Power Sensors 204 EPM P Series Peak and Average Power Meters User s Guide EPM P Series Peak and Average Power Meters User s Guide 8 Maintenance Self Test 206 Error Messages 213 Operator Maintenance 224 Contacting Agilent Technologies 226 phe Agilent Technologies 205 8 Maintenance Self Test The power meter has two self test modes e Power on self test occurs automatically when you turn on the power meter Troubleshooting mode accessed via t
181. til you are familiar with the trace and marker controls e Channel choose the sensor mode and range configure filtering averaging bandwidth and the RF frequency e Trigger configure the trigger to ensure the meter is triggering on the required event e Gate use the Gate Ctrl and Trace Ctrl menus to configure the timing of gates and trigger point on the displayed signal EPM P Series Peak and Average Power Meters User s Guide 103 3 104 Using E9320 E Series Power Sensors e Display choose the display format for the measurements you want to make e Measurement Setup assign the measurements to the displays you have set up Channel Press Refer to Step 1 The Channel Setup on page 84 and configure the Channel Setup table with as much information as you have available Confirm the Video B W and Video Avg are set to Off Bandwidth filtering and averaging can be readjusted later to improve measurement accuracy RMT TLK Channel Setup Sensor Mode Normal Range AUTO Filter AUTO 258 Duty Cycle Off LEGG Offset Off egosi Frequency 50 000MHz CF Table lt FDO Table Off Video Avg Off 4 amp 4 Video B W Off Step Detect On Figure 3 60 E Series E9320 Power Sensor Default Channel Setup The Sensor Mode must be set to Normal to allow access to the gate and trace control screens Trigger The power meter must be in a triggered mode to allow access to the gate and trace control screens Pres
182. tion 52 Figure 2 15 Limits Checking Results 53 Figure 2 16 Setting Maximum Limit 54 Figure 2 17 Remote 0 TTL Outputs 55 Figure 2 18 TTL Output Pop up 56 Figure 2 19 Example of TTL Disconnect Warning Message 56 Figure 2 20 TTL Limits Pop Up 57 Figure 2 21 Limit Failures 58 Figure 2 22 Channel Setup Range 59 Figure 2 23 Analog Display in Lower Window 60 EPM P Series Peak and Average Power Meters User s Guide Figure 2 24 Meter Maximum Pop Up 60 Figure 2 25 Meter Minimum Pop Up 61 Figure 2 26 Recorder Maximum Pop Up 63 Figure 2 27 Recorder Minimum Pop Up 63 Figure 2 28 Save Recall Screen 65 Figure 2 29 Save Pop Up 66 Figure 2 30 Recall Pop Up 66 Figure 2 31 Pulsed Signal 68 Figure 2 32 Duty Cycle Off 68 Figure 2 33 Duty Cycle Pop Up 69 Figure 2 34 Duty Cycle On 50 69 Figure 3 35 E Series E9320 Power Sensor Default Channel Setup 78 Figure 3 36 Measurement Gates 79 Figure 3 37 Twelve Measurements per Channel 80 Figure 3 38 E Series E9320 Power Sensor Default Channel Setup 84 Figure 3 39 Bandwidth Filter Shapes 87 Figure 3 40 Gates screen 88 Figure 3 41 Time Gating Start Pop Up 88 Figure 3 43 Trigger Menu Free Run Mode 90 Figure 3 44 Trigger Setting Menu1of2 91 Figure 3 45 Trigger Level Pop Up 92 Figure 3 46 Trigger Delay Pop Up 93 Figure 3 47 Trigger Setting Menu 2of2 93 Figure 3 48 Trigger Holdoff Pop Up 94 Figure 3 49 Trigger Hysteresis Pop Up 95 Figure 3 50 Display Type Menu 96 EPM P Se
183. tor test 330 Self test Failed ROM Check Failed Refer to see ROM Checksum on page 210 if you require a description of the ROM Checksum test 330 Self test Failed RAM Check Failed Refer to see RAM on page 210 if you require a description of the RAM test 330 Self test Failed Display Assy Fault Refer to see Display on page 211 if you require a description of the Display test EPM P Series Peak and Average Power Meters User s Guide Maintenance 8 330 Self test Failed Serial Interface Fault Refer to see Serial Interface on page 210 if you require a description of this test 350 Queue overflow The error queue is full and another error has occurred which could not be recorded 361 Parity error in program The serial port receiver has detected a parity error and consequently data integrity cannot be guaranteed 362 Framing error in program The serial port receiver has detected a framing error and consequently data integrity cannot be guaranteed 363 Input buffer overrun The serial port receiver has been overrun and consequently data has been lost 410 Query INTERRUPTED A command was received which sends data to the output buffer but the output buffer contained data from a previous command the previous data is not overwritten The output buffer is cleared when power has been off or after RST reset command has been e
184. tting Menu 1 of 2 The are two pages for the trigger Settings menu Figure 3 44 shows page 1 TIP To help you quickly check the triggering setup the current settings for all the trigger parameters are shown below the respective softkey labels EPM P Series Peak and Average Power Meters User s Guide 91 3 92 Using E9320 E Series Power Sensors Source Mode Level mS Si The current setting is shown below the Source label Also the trigger source is shown beside the trigger symbol when a measurement window is configured in single numeric mode When an external trigger Ext is selected the power meter can be triggered via the Ext Trig TTL transition edge input or a remote command To change the setting press Source and choose Ext or Int The Mode key is only available when trigger Source Int is selected Again the current setting is displayed below the label When Norm is selected you can choose the RF power level transition used as the trigger The power meter automatically finds a triggering power level transition when AutoLvl is selected To change the setting press Mode and choose Norm or AutoLvl Level is only available when Norm trigger has been selected The current value is shown below the Level label The minimum power level you can enter is limited to 40 dB below the maximum sensor power To change the setting press Level and use the gt and keys to enter the new value Trigge
185. ture 20 C to 70 C Non Operating Maximum Humidity 90 at 65 C non condensing Non Operating Maximum Altitude 15240 meters 50000 feet EPM P Series Peak and Average Power Meters User s Guide 241 9 Specifications and Characteristics Regulatory Information Electromagnetic Compatibility This product conforms with the protection requirements of European Council Directive 89 336 EEC for Electromagnetic Compatibility EMC The conformity assessment requirements have been met using the technical construction file route to compliance using EMC test specifications EN 55011 1991 Group 1 Class A and EN 50082 1 1992 In order to preserve the EMC performance of the product any cable which becomes worn or damaged must be replaced with the same type and specification Product Safety This product conforms to the requirements of European Council Directive 73 23 EEC and meets the following safety standards e IEC61010 1 1990 A1 1992 A2 1995 EN 61010 1 1993 e IEC 825 1 1993 EN 60825 1 1994 e Canada CSA C22 2 No 1010 1 93 242 EPM P Series Peak and Average Power Meters User s Guide www agilent com Contact us To obtain service warranty or technical support assistance contact us at the following phone numbers United States tel 800 829 4444 fax 800 829 4433 Canada tel 877 894 4414 fax 800 746 4866 China tel 800 810 0189 fax 800 820 2816 Europe tel 31 20 547 2111 Japan tel
186. u can use the TTL inputs on the rear panel Rmt I O port to initiate zero and calibration cycles on the power meter The connector is an RJ 45 Series shielded modular jack with the TTL input pins connected as shown in Figure 2 2 y WARNING no OPERATOR SERVICEABLE PARTS INSIDE REFER SEAVICING TO SERVICE TRAINED PERSONNEL Pin Connection fe Chi 1 Che B Power Ret number al 1 none P J amp wi 2 Ground lol ee T5 a an a 3 Upper Window ANINE FOR connie PROTECTION USE SPECIFIED LINE FUSE JJ TTL Output S 4 Lower Window N TTL Output N lt 5 TTL Input 1 6 TTL Input 2 12345678 7 Ground 8 Ground Figure 2 2 Rmt 1 0 Port TTL Inputs The TTL inputs are active low and control the zero and calibration functions as shown in Table 2 2 Table 2 2 TTL Input Control Logic Input 1 Input 2 Single channel Dual channel 1 1 None None 1 0 CAL CALA 0 1 ZERO ZERO BOTH 0 0 CAL CAL B 30 EPM P Series Peak and Average Power Meters User s Guide Timing of zero cal inputs for conditions 01 and 10 T1 T2 T3 General Power Meter Functions 2 Effective control of the zero and calibration cycles using the TTL inputs depends on correct timing of the input signals as shown in Table 2 3 and Table 2 4 Table 2 3 TTL Inputs Timing Diagram 1 Operation T1 T2 e T3 T4 Emai Time Description Value Minimum width of input 300 m
187. ues is 100 dB to 100 dB A positive value compensates for a loss and a negative value compensates for a gain EPM P Series Peak and Average Power Meters User s Guide 39 2 General Power Meter Functions To enter a channel offset 1 Press to display the Channel Setup screen Confirm the required channel setup is displayed Press Channel Ch to change channel if required 2 Use the and o keys to highlight the Offset setting 3 Press Change to select ION Press to highlight the Offset value and press Change to display the Offset pop up Use the and keys to select and change the values as required 4 Confirm your choice by pressing dB 5 Press Done to complete the offset entry If either a channel or a display offset is set is displayed A 50 0MHz Ofs 46 16 46 16dBm 70 000dBm 20 000dBm Figure 2 5 Offset Applied The symbol is not displayed when the associated measurement is displayed in Dual Numeric or Analog format 40 EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Setting Display Offsets This gain or loss is applied to the measured power after any channel offsets or mathematical functions have been included Offsets are entered in dB The allowable range of values is 100 dB to 100 dB A positive value compensates for a loss and a negative value compensates for a gain Procedure Enter a display offset on the currently selected wind
188. utoff points by applying digital signal processing techniques The Off setting removes all signal conditioning Refer to Figure 3 39 76 EPM P Series Peak and Average Power Meters User s Guide Using E9320 E Series Power Sensors 3 NOTE Maximum dynamic range is related to the maximum sensor bandwidth Please refer to the documentation supplied with your E Series E9320 power sensor for specification information EPM P Series Peak and Average Power Meters User s Guide 71 3 Using E9320 E Series Power Sensors Power Meter Configuration The EPMP Series power meters automatically recognize an ESeries E9320 power sensor when it is connected The sensor calibration data characterizing the sensor output versus input power frequency and temperature is automatically read by the power meter Default Channel Setup When an E Series E9320 power sensor is connected the following Channel Setup is automatically configured Carrying out a Preset returns the power meter to this configuration Any changes made to the Channel Setup are retained after a power cycle RMT TLK Channel Setup Normal AUTO Sensor Mode Range Filter Duty Cycle Offset Frequency CF Table FDO Table Video Avg Off Video BA Off Step Detect On Ole Off Off Off Figure 3 35 78 AUTO 286 EGGO 8 00888 50 000MHz E Series E9320 Power Sensor Default Channel Setup EPM P Series Peak and Average Power Meters User s Guide Using E9320
189. wer envelope of the input signal The power envelope of the input signal is in some cases determined by the signal s modulation bandwidth and hence video bandwidth is sometimes referred to as modulation bandwidth Video Bandwidth Dynamic Range Optimization The power measurement system comprising the sensor and meter has its maximum video bandwidth defined by the E9320 E Series power sensor To optimize the system s dynamic range for peak power measurements the Video Bandwidth in the meter can be set to High Medium or Low as detailed in Table 9 27 The filter video bandwidths stated in the table are not the 3 dB bandwidth as the video bandwidths are corrected for optimal flatness Refer to the E9320 E Series Power Sensor Operating and Service Guide for information on the sensor s peak flatness response A filter Off mode is also provided EPM P Series Peak and Average Power Meters User s Guide Specifications and Characteristics 9 Table 9 27 Video Bandwidth vs Peak Power Dynamic Range Video bandwidth Maximum peak power dynamic range Sensor Off High Medium Low E9321A 300 kHz 300 kHz 100 kHz 30 kHz 93254 40dBmto20dBm 42 dBm to 20 dBm 43dBmto20dBm 45 dBm to 20 dBm E9322A 1 5 MHz 1 5 MHz 300 kHz 100 kHz E9326A 36dBm to 20 dBm 37 dBm to 20 dBm 38 dBm to 20 dBm 39 dBm to 20 dBm E9323A 5 MHz 5 MHz 1 5 MHz 300 kHz E9327A 32 dBm to 20dBm 32 dBm to 20 dBm 34 dBm to 20 dBm
190. wer meter calibration an Agilent 11708A 30 dB reference attenuator and an APC 2 4 f to 50 Q m N Type adapter 08487 60001 should be connected between the power sensor and the reference calibrator Remove this attenuator from the power sensor input before making measurements These waveguide power sensors have two connectors Use the N Type connector to calibrate the power meter EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 Zero Cal Lockout The Zero Cal Lockout facility can help you make sure that a measurement cannot be made until the power meter sensor combination has been zeroed and calibrated When the Zero Cal Lockout facility is enabled and a sensor is first connected the message EENIA OERI is displayed When you zero the sensor the message changes to REGRA If you calibrate the sensor before zeroing it the message changes to RERED Dual Channel Dual channel meters display channel specific messages when a sensor is connected The Zero Cal Lockout configuration is applied to both channels it cannot be applied to one channel only You can enable and disable the Zero Cal Lockout facility from the System menu or the Zero Cal menu as follows Press fer Mor Must Cal Off or On Similarly press E More Must Cal Off or On EPM P Series Peak and Average Power Meters User s Guide 29 2 General Power Meter Functions Zeroing and Calibrating Using TTL Inputs Yo
191. wer sensors 232 EPM P Series Peak and Average Power Meters User s Guide Specifications and Characteristics 9 Power Meter Specifications Frequency Range 9 kHz to 110 GHz power sensor dependent Power Range 70 dBm to 44 dBm 100 pW to 25 W power sensor dependent Power Sensors Compatible with all Agilent 8480 Series power sensors Agilent E Series power sensors and Agilent N8480 Series power sensors Single Sensor Dynamic Range E9320 E Series peak and average sensors 70 dB maximum Normal mode 85 dB maximum Average only mode E4410 E Series sensors 90 dB E9300 E Series average sensors 80 dB maximum 8480 Series sensors 50 dB maximum N8480 Series sensors excluding 55 dB maximum Option CFT N8480 Series sensors with 50 dB maximum Option CFT Display Units Absolute Watts or dBm Relative Percent or dB EPM P Series Peak and Average Power Meters User s Guide 233 9 234 Specifications and Characteristics Display Resolution Selectable resolution of 1 0 0 1 0 01 and 0 001 dB in logarithmic mode or 1 2 3 and 4 significant digits in linear mode Default Resolution 0 01 dB in logarithmic mode Three digits in linear mode Offset Range 100 dB in 0 001 dB increments to compensate for external loss or gain Video Bandwidth Modulation Bandwidth 5 MHz set by meter and is sensor dependent The video bandwidth represents the ability of the power sensor and meter to follow the po
192. ws 1 Ensure the power meter sensor combination has been zeroed and calibrated 2 Press stem Tables Freq Dep Offset or press and after selecting the required channel use the and keys to select FDO Table and press Change The Offset Tbls screen is displayed 3 Use the and keys to highlight one of the 10 table titles and press Table to highlight On When no data is contained in the highlighted table the Table key is disabled greyed out 4 Press Done to complete the selection of the offset table EPM P Series Peak and Average Power Meters User s Guide General Power Meter Functions 2 RMT TLK Channel Setup Sensor Mode AG oniy Range AUTO Filter AUTO izg Duty Cycle Off LEEG Offset Off 28g Frase Frequency 200 00MHz Setup CF Table FDO Table Video Avg Done Video Biv Step Detect Change G2 LOS D Figure 2 9 Frequency Dependent Offset Table Selected 5 Press Done again to display the measurement screen Press feao The current setting of the frequency is displayed under the channel Freq softkey 7 To change the frequency press the channel Freq softkey The frequency is displayed in a pop up window Use the and E keys to select and change the values as required 8 To confirm your choice press the appropriate unit softkey 9 Connect the power sensor to the signal to be measured 10 The measurement result including offset is now displayed RMT TLK 200 0MHz Freq
193. xecuted 420 Query UNTERMINATED The power meter was addressed to talk that is to send data over the interface but a command has not been received which sends data to the output buffer For example you may have executed a CONFigure command which does not generate data and then attempted to read data from the remote interface 430 Query DEADLOCKED A command was received which generates too much data to fit in the output buffer and the input buffer is also full Command execution continues but data is lost 440 Query UNTERMINATED after indefinite response The IDN command must be the last query command within a command string EPM P Series Peak and Average Power Meters User s Guide 223 8 Maintenance Operator Maintenance 224 This section describes how to replace the power line fuse and clean the power meter If you need additional information about replacing parts or repairing the power meter refer to the EPM P Series Power Meter Service Guide To clean the power meter disconnect its supply power and wipe with a damp cloth only The power line fuse is located within the power meter s fuse holder assembly on the rear panel For all voltages the power meter uses a 250 V F3 15AH 20 mm fast blow fuse with high breaking capacity Agilent part number 2110 0957 The power meter also has an internal fuse If you suspect that this fuse needs replaced it must be done by trained service personnel
194. z W8486A or the 44 dBm 8482B However they do not have their calibration factors stored in EEPROM unlike all E Series and N8480 Series power sensors excluding Option CFT which require that you use default calibration tables or manually enter the required correction factors Likewise they cannot be used to make peak or time gated measurements Please refer to the documentation supplied with your Agilent 8480 Series power sensors for specification and calibration information EPM P Series Peak and Average Power Meters User s Guide Power Meter Configuration Using 8480 Series Power Sensors 6 The EPM P Series power meters automatically recognize an 8480 Series power sensor when it is connected The averaging settings shown in Figure 6 87 are automatically configured Maximum Sensor Power 1 Resolution Setting Power Sensor Dynamic Range Minimum Sensor Power Figure 6 87 8480 Series Auto Averaging Settings 2 3 4 1 1 1 8 1 1 1 16 1 1 2 32 1 1 16 256 1 8 128 128 sefesany jo saquinyy These values are valid only for the power meter channel connected to the Agilent 8480 Series power sensors and only while the sensor is connected Averaging settings can also be manually configured Default Channel Setup Figure 6 88 shows the Channel Setup configured automatically Presetting returns the power meter to this configuration Any changes made to the Channel Setup are retained after a power cycle EPM P Seri

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