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Spectrum Analyzer

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1. Display Line 4 4 2 00000000 00 0 00000 0 er re ere ere ere ee eee er eee reer eer eer ee ree reer eer Threshold Line 0 00S00 v Screen Title ere Contrast 48988 69004000600 0 006 ON OFF 4 0 000060 0 0 eee ere rere ree ree eee reer eer eee errr er eer reer er eer ee rere ee 5 1 SECTION 5 OPERATING PROCEDURES TS if ANNOT ON OFF INVERSE ON OFF TRIGGER FUNCTIONS gt HH HH Hen Continuous Sweep Mode eem HH eee 5 35 Single Sweep Mode eee HH Henne 5 35 Triggered Mode ee MM HH HH 5 36 Trigger Source Arka 5 36 Trigger Filler mmm HH HH Hn 5 36 Trigger PP 5 36 Line Trigger VEN DAE TOLPPOLA 5 37 Extemal Trigger TRIES LI UI 5 37 Trigger Delay 5 37 COUPLED FUNCTIONS 00
2. 29 Figure 2 Rear Panel Controls Connectors and Indicators 3 3 SECTION 3 PANEL DESCRIPTION Controls Connectors and Indicators Location List LOCATION ITEM 1 LCD Display 2 Marker Function Keys 3 Frequency amp Amplitude Function Keys 4 Data Entry Keys 5 Power ON amp Standby Indicators 6 Power ON OFF Contol 7 Remote Control Operation Indicator 8 General Funtion Keys 9 PCMCIA Connector Slot 10 Data Spinner Control 11 Spectrum Ananlyzer Input Connector 12 Increase Key 13 Decrease Key 14 Optional Tracking Generator Output connector 15 Control Function Keys 16 Soft Function Keys 17 IF Output Connector 18 Extemal Trigger Input Connector 19 Extemal Earphone Connector 20 RS232 Connector 21 AC Input Connector and Fuse 22 DC Input Connector 23 Chassis Ground Connector 24 DC Fuse 25 Printer Connector 26 IEEE 488 GPIB Connector 27 Extemal Video Connector 28 Extemal Sweep Gate Connector 29 10 MHz Referenc Input Output Connector 3 4 SECTION 3 PANEL DESCRIPTION TABLE OF I O CONNECTORS CONNECTOR TYPE IN OUT SIGNAL IEC 320 Input AC Power Socket AC Input Type N Input RF Female Analyzer Input Optional Tracking Generator Type N Output Output Female vp Extemal Trigger Input BNC Female Input Extemal Swe
3. Normal Marker 4 988 0000000000 006 06606006 0 0 6 Delta Marker Marker Off ere errr reer reer eerie PEAK SEARCH FUNCTIONS A A Peak Search 8 4 4 00000 00000660 66 660000 6 0 Next Peak Search LB A Peak Left Search Peak Right Search Roe Marker Track Marker Noise 0 0 006 SETTING PARAMETERS USING MARKER VALUES PEPE eee eee eee rere ere reer reer eee errr Setting Parameters Using Marker Values MKR STEP MKR DELTA STEP AMKR gt SPAN MKR ZOOM IN ZOOM OUT AUTOSET
4. LVL SCALE 09 09 23 10 3 dBm LOG 10 dB 20 dB manual UP iPASS LOWPASS m 40 000 MHz 1 000 MHz 30 kHz 30 kHz 1 05 int ref i manual auto manual SPAN RBW VBW SWEEP CENTER Fig 5 31 Limit Line Function 5 59 SECTION 5 OPERATING PROCEDURES The LIMIT LINE FUNCTION displays two lines which can be set to show permissible upper and lower bounds on the spectral waveform Comparison of measured data with the limit lines is very easy To make the upper or lower mask table perform the following key operations When the UPPER Limit line is selected the limit line cursor gt is displayed on the left most top of the display line In LOWER limit line the cursor is displayed on the left most bottom of the display line The UP DOWN step is used to move the limit line cursor in the amplitude axis Y position The SCROLL key is used to move the limit line cursor in the frequency axis X position To define a limit line perform the following operations LIMIT MAKELIMIT I SELECT LOW UP Select the upper limit line or the lower limit line MARK DOT Designates the position of X or Y positions r ACCEL ON OFF Select the moving size of limit line cursor ON 1division OFF 1pixel L UNDO The last line is cleared m CLEAR The limit line is cleared
5. All Auto Function The coupled function has two modes One is the Auto mode the other one is the Manual mode In order to operate the Auto Mode perform the following key operations CPL ALL AUTO REF LVL 16 58 24 23 9 dBm LOG 10 dB 0 dB auto 1 3 ALL AUTO AUTO AUTO wu c LO 4 SWP TIME AUTO 250 0 ms 10 kHz 10 kHz 40 000 MHz 1 000 MHz int ref _ auto auto CENTER RBW SWEEP Fig 5 23 Couple Function SECTION 5 OPERATING PROCEDURES RBW and Sweep Time 1 Auto Mode The RBW Sweep Time and VBW parameters are set to Auto so that even if the frequency span is varied the respective parameters are automatically set to the optimum values so frequency and level measurement do not occur The following shows the Auto Sweep Time Range Lower limit range 50msec Upper limit range 1000sec The following table shows the RBW VBW and sweep time for various span ranges Frequency Span SWEEP TIME 1 2 to 9 9kHz The sweep time is calculated 10 2 to 99 9kHz using the Span RBW VBW values 100kHz to 299 9kHz to optain the lowest sweep time 300kHz to 999kHz while maintaing accuracy 1MHz to 1 99MHz 2MHz to 4 99MHz 5MHz to 5 99MHz 6MHz to 19 99MHz 20MHz to 59 9MHz 60MHz to 199 9MHz 200MHz to more
6. 5 47 Recall Parameters and Waveform 86 8 266 90 08466660060006 66666 6 5 48 MEASUREMENT FUNCTIONS mme nhe nenne 5 50 X dB Down Measurement STENT TA UE I DD OIL 5 51 Occupied Power Bandwidth Measurement MM 5 52 Marker Counter nmm enne nnn nennen nnn enn nen nennen nennen 5 53 QP EMC Measurement option e 5 53 Channel Power Rer E 5 54 Adjacent Channel Power ACP ure vi TE Rad 5 55 DEMODULATION AND AUDIO 5 56 AM Demodulation 5 57 FM Demodulation E EEPE OE TIIE TTI ed E FIE add eb 5 57 Audio Monitor aie sa L IETLS LTE TETE E EE ETET ET 5 57 TRACKING GENERATOR option 5 58 LIMIT LINE FUNCTIONS mmm meme mH 5 59 WINDOW FUNCTIONS Beesssssssossssososossssssssosossssssossssssessosososssscsososssoososossooocsoooo 5 61 PRESET FUNCTIONS VasssecssessesesusceezoskcosocucocusocvessecesceesesessceessstissussesesscecosoFk sue 5 63 Preset 5 63 Last State HH 5 64 All Cal 5 64
7. UE 4 6 TRIG 4 7 SAVE BECALE 4 8 CONFIG c 4 9 MENS adio 4 10 aceti eH usus 4 11 PRESET bd be atu od nates acco 4 12 SECTION 5 OPERATING PROCEDURES 12 20 5 1 FREQ SPAN FUNCTIONS 53 Center Span Data Entry EES 5 4 Start Stop Freq Data Entry 5 6 Setting CF Step Size eee 5 8 Setting Ful Span een 5 9 Setting Zero Span ee 5 10 Retum to the Previous Span e 5 10 Zoom I Zoom OU 5 11 AMPLITUDE FUNCTIONS 5 12 Selecting Log Linear Detector Mode 5 12 Setting Amplitude Units e 5 12 Setting Reference Level e 5 13 Setting Amplitude Scale eue bee eee e e e e dede 5 13 Reference Level Offset ette eee teretes 5 13 Setting Input Attenuation e 5 14 MARK FUNCTIONS estare tete tapete A Pre eher 5 15 Changing Marker Position n 5 15 Normal Marker tette tenente tenter tite 5 16 Delta Marker WIRED EE REED UE GR E OL UEBER DE CREDERE NEN 5 17 Marker Off ttes NIMM ga ane Ta BUCHT LE AMA Sec Te 5 17 PEAK SEARCH FUNCTIONS e 5 18 Peak Sealch emet n RR gt gt 5 18 Next Peak Search eet een petet attinet 5 19 Peak Left Search Peak
8. 1 ALWAYS refer to the operation manual when working near locations at which the alert mark shown on the left is attached If the operation etc is performed without heeding the advice in the operation manual there is a risk of personal injury In addition the equipment performance may be reduced Moreover this alert mark is sometimes used with other marks and descriptions indicating other dangers 2 When supplying power to this equipment connect the accessory 3 pin power cord to a 3 pin grounded power outlet If a grounded 3 pin outlet is not available use a conversion adapter and ground the green wire or connect the frame ground on the rear panel of the equipment to ground If power is supplied without grounding the equipment there is a risk of receiving a severe or fatal electric shock and equipment damage 3 This equipment cannot be repaired by the user DO NOT attempt to open the cabinet or to disassemble intemal parts Only IFR trained service personnel or staff from your sales representative with a knowledge of electrical fire and shock hazards should service this equipment There are high voltage parts in this equipment presenting a risk of severe injury or fatal electric shock to untrained personnel In addition there is a risk of damage to precision parts 4 This equipment should be used in the correct position If the cabinet is tumed on its side etc it will be unstable
9. 9kHz 2 7GHz spectrum analyzer OOD amp TRACE FUNCTIONS The TRACE key is the header key for the trace function Ooo When the TRACE key is pressed the following soft menu is displayed on the screen LVL SCALE 15 45 01 23 9 dBm LOG 10 dB 0 dB auto MAX HOLD VIEW BLANK SELECT B AVERAGE MORE 40 000 MHz 1 000 MHz 10 kHz 10 kHz 50 0 ms int ref auto auto auto CENTER VBW SWEEP Fig 5 18 Trace Function 5 25 SECTION 5 OPERATING PROCEDURES Select Trace The analyzer provides two Trace Memories The active trace memory is selected by the following key operations SELECT B A CLR amp WRT A B The current trace memory is A B The data will be cleared and written by the new data at the trace memory by pressing the key CLR amp WRT A B MAX HOLD A B On each sweep the new data for each horizontal point is compared with previous data The unit stores and displays the level with the larger value Thus the display accumulates the maximum values for each point When this key is pressed again the MAX HOLD function restarts again MAXHOLD A B
10. OOQO 2 RO RF Cable2 Power Meter lt Amplitude display linearity gt Splitter RF Cable3 SECTION 6 PERFORMANCE TESTS 6 3 7 4 Procedure 6 3 7 4 1 LOG Linearity 10 dB div 5 dB div 2 dB div 1dB div Step Procedure 1 Press PRESET key 2 Preset ALL CAL softkey 3 Set up the 2398 as shown below Center frequency 100 MHz Reference level 110 kHz Span OdBm 10dB RBW 1kHz VBW 10Hz Scale 10dB div 4 Set the Synthesized signal generator MG3633A as shown below Frequency 100 MHz Power 6dBm 5 Press AMPL LOG key and then the SCALE gt 10dB div key to set the display in the Log state 6 Press PEAK gt CF key and then the Peak MKR gt REF key to set the waveform peak to the center of the screen Adjust Signal generator as required to confirm that power meter measures 0 dBm 7 Press MKR MARKER DELTA key and increase Attenuator in 10dB steps HP8494 HP8496 reading A marker level 8 Calculate Log Linearity 10 dB div Amplitude display linearity error Attenuator value dB Amarker level 9 Repeat Log Linearity 5 dB div 2 dB div 1 dB div steps 5 than 8 6 25 SECTION 6 PERFORMANCE TESTS Log Display Linearity 10 dB DIV Test Instrument Attenuator Setting dB 21 Marker Value dB 0 10 20
11. Lo LINEAR a NP UNIT 40 0020 MHz 500 0 kHz 10 kHz 10 kHz 50 0 ms int ref i auto auto auto CENTER SPAN VBW SWEEP Fig 5 10 Amplitude Function SECTION 5 OPERATING PROCEDURES MARKER FUNCTIONS The inner key section is used as the header keys for setting the marker functions The MKR key is used as the header key to display markers The OFF key tums the Marker OFF Ikt1z 2 7GHz spectrum analyzer FUNCTION FREQ 3 0 363 S PAN s 2 F2 AMPL jums Hz Changing Marker Position Use the step up down key to move the active marker position in 1 division steps When the up step key is pressed the marker position is moved to the right direction The down step key direction is left The scroll key step size is 1 500 of the horizontal line Step key Scroll key SECTION 5 OPERATING PROCEDURES Normal Marker A single marker is indicated by on the waveform The frequency and level at that point are displayed digitally The normal marker is initially set to ON When the current state is another marker mode or when the normal marker is set to OFF perform the following key operations to set the normal marker ON e NORMAL MARKER The normal mar
12. 5 38 AII Auto Function esssececsossseososososoososososoososesosooseceososessocososossososesoososecesoooe 5 38 RBW and Sweep Time 5 39 Video Bandwidth VBW Me rr rrr UR M E 5 40 Input Attenuator PPE AART E EE T 5 41 CONFIGURATIONS 5 42 Hard Copy 5 42 Print Type Mr PORE UNE 5 42 RS 232 Configuration e a abel 5 43 Address dues ud Jen asaede caus sap LE 5 43 Clock ee HH 5 43 10M REF INT EXT 5 44 ON OFF Pesssssssssssssoscsocseosesossessssessscossccsoceosceocescoseccsooceocecoocceooon 5 44 Version Information 5 44 PCMICIA MEMORY CARD FUNCTIONS option mmm 5 45 SAVE AND RECALL FUNCTIONS mme M HH 5 46 Intemal Register 5 46 Save Parameters and Waveform
13. CANNEL lower channel Low 47 39 dB i i SPACE upper channel CHANNEL uppe ee E E 737 311 menm channe bandwidth 50 0 ms auto SWEEP 10 kHz 100 kHz 1 000000 GHz manual manual VBW int re CENTER Fig 5 29 ACP Function SECTION 5 OPERATING PROCEDURES DEMODULATION AND AUDIO FUNCTIONS The 2398 provides analog demodulation and audio monitor functions AM Demodulation FM Demodulation Audio ON OFF Audio level control Squelch function Tracking Generator ON OFF Output level control m FREQ EB 2 Br 3 OO ore REF LVL 18 30 53 0 0 dBi s OFF AUDIO OFF AUDIO LEVEL SQUELCH LEVEL TRACKING 95 600000 MHz 0 Hz 100 kHz 1 MHz int re manual auto CENTER SPAN RBW VBW Fig 5 30 AUX Function SECTION 5 OPERATING PROCEDURES AM Demodulation The AM demodulation function displays the amplitu
14. MG3633A BNC Cable Power Combiner RF Cable2 Adapter 1 J RF Cable1 RF Cable3 Frequency Counter Hp5350B lt Frequency Span Readout Accuracy gt SECTION 6 PERFORMANCE TESTS 6 3 3 4 Procedure Step Procedure 1 10 11 frequency span accuracy Set the power supply switching on the 2398 rear panel to ON and then the power switch ON the 2398 front panel to ON Press the 2398 PRESET key Press PRESET softkey and then ALL CAL softkey Set the signal generator output frequency equal to the center frequency in the following table Frequency 1300 MHz 10dBm Set the 2398 to the center frequency in the table and the attenuator to 10dB Center frequency 1300 MHz Span 50 kHz CReencele Couple All Auto Set control of 2398 as follows Adjust the MG3633A output frequency to set the signal peak at the 1st division from the left end of the screen scale Record the frequency of f1 After setting the MG3633A output frequency to the f2 frequency adjust it to set the signal peak atthe 9th division Record the frequency of f2 Calculate 2 f1 span 0 8 and check that the value is within the specified range shown in the table on the next page Repeat steps 5 through 10 for each frequency span with 1300 MHz center frequency range between
15. CNTRES 1kHz RETURN 100 Hz 10 Hz 1Hz QP EMC Measurement option Set the Quasi detection mode as required by the CISPR specification for ElectroMagnetic Compliance MEAS QP BAND 9kHz RETURN BAND C 120kHz To use Quasi Peak Detection Mode perform the following key operations When the QP detection mode is selected the scale of the analyzer is set to 5dB DIV and the VBW is set to OFF automatically 5 53 SECTION 5 OPERATING PROCEDURES Channel Power Channel Power measures power in a given channel bandwidth Channel bandwidth is determined using the center frequency in the screen Channel Power Measuring 1 When channel bandwidth key F1 is pressed calculates channel power with the current channel bandwidth at the end of the current sweep 2 When channel bandwidth is changed using step key knob or numeric key calculates channel power with the new channel bandwidth at the end of the current sweep 3 When calculates channel power SAMPLE detection is used Set up condition to measure channel power 1 center frequency center frequency of channel 2 RBW RBW lt 0 025 x Channel Bandwidth 3 VBW 10 X RBW 4 Sweep time AUTO 5 SPAN SPAN 2 Channel Bandwidth 6 Detect mode SAMPLE 7 Scale log mode REF LYL SCALE 17 40 52 39 9 dBm LOG 10 dB
16. STOP CF STEP MNL 39 500 MHz 40 500 MHz 30 kHz 30 kHz 50 0 ms int ref manual auto auto START Ce VBW Fig 5 3 Start Frequency 5 6 SECTION 5 OPERATING PROCEDURES 2 Setting the stop frequency To set the stop frequency perform the following key operations FREQ STOP me Numeric key Step key Scroll key The step up down key step size is 1 10 of the current frequency span The scroll key step size is 1 500 of the current frequency span Notes Because the step up and down keys are used for the center frequency the start and stop frequencies are also changed The start and stop frequency may also vary depending on the values of the frequency span Setting resolution REF LVL SCALE 19 45 29 20 0 dBm 10610 dB 0 dB 1 manual CENTER STR START fh CF STEP MNL 39 500 MHz 40 500 MHz 30 kHz 30 kHz 50 0 ms int ref manual auto START VBN Fig 5 4 Stop Frequency 5 7 SECTION 5 OPERATING PROCEDURES Setting CF Step Size To use the step up and down keys to change the step size of the center frequency identify the step size as following FREQ gt CF STEP AUTO MNI Numeric key Step key 2 2 Scroll key The CF STEP mode is
17. m pa WIN mo F5 co meas aux mec cone GENERATOR ER INPUT F7 aede f N oowte 27GH2 4 264 SJ NJ Continuous Sweep Mode When the trigger mode is set to FREE RUN the sweep is executed continuously When the trigger mode is set to Triggered Trigger source is not FREE RUN the sweep is executed each time the trigger conditions are met To set the continuous sweep mode press the following keys TRIG CONT Single Sweep Mode When the trigger mode is set to FREE RUN the sweep is executed once immediately after the SINGLE key is pressed When the trigger mode is set to Triggered Trigger source is not FREE RUN the sweep is executed only once when the trigger conditions are met To set the single sweep mode press the following keys TRIG SINGLE SECTION 5 OPERATING PROCEDURES Triggered Mode The 2398 trigger mode be divided into FREE RUN and TRIGGER In the Triggered mode VIDEO LINE or EXTERNAL can be selected as the trigger source Trigger Source select the TRIGGER SOURCE perform the following key operations TRIG TRIGSOURCE FREERUN RETURN VIDEO LINE EXTERNAL Trigger Filter The 2398 trigger circuit has two trigger filters High Pass Filter and Low Pass Filter The default setting is Low Pass Filter LPF cutoff frequency 100kHz
18. HPF cutoff frequency 5Hz The TRIGGER FILTER mode may be changed by pressing the softkey TRIG TRIG FLT HPF LPF Trigger Level When the VIDEO ZERO SPAN Trigger source is selected the sweep is started in synchronization with the positive leading edge of the detected waveform that is greater than trigger level To select trigger level perform the following key operations TRIG o TRIG SOURCE VIDEO The trigger level is controlled by the step up down key and the scroll key The trigger level is indicated by displaying the trigger level line on the screen 5 36 SECTION 5 OPERATING PROCEDURES Line Trigger This function starts sweep synchronization with power line frequency Line trigger is conveniently used to observe power line related waveforms With the line trigger function the trigger level and trigger filter are not active External Trigger This function starts sweep in synchronization with the extemal trigger source Sweep is started in synchronization with the positive leading edge of the signal waveform input to the EXT TRIG input connector on the rear panel Trigger execution requires TTL input signals Trigger Delay When the trigger mode is set to Triggered mode Trigger source is selected as VDEO EXT or LINE only the trigger point is usually positioned at the left end of the screen However this means that it is not possible to see the waveform befo
19. VSWR 6 50 SECTION 7 STORAGE AND TRANSPORTATION 24 7 1 Cleaning Cabinet ea tete ced b Re e ip 7 3 Storage Precaloris 7 4 Precautions before SOGE emeret UR E ERI LG AR 7 4 Recommended storage precautions M 7 4 Repacking and Transportation e e e 7 5 Repacking Mute M AM M E ML 7 5 hea 7 5 SENICE ue iMi ciim 7 6 15 lt BLANK gt SECTION 1 GENERAL SECTION 1 GENERAL This section outlines the 2398 Spectrum Analyzer and explains the composition of this manual the configuration of the 2398 with the standard accessories the options the optional accessories peripherals for expanding the 2398 capabilities and the 2398 specifications TABLE OF CONTENTS N Composition of Operation Manual 1 3 Product Outline 1 4 2398 standard Configurations ette tcl ade ane tec 1 5 The 2398 may be special ordered 1 5 With any of the following options Accessones for 2398 UBRO amd 1 5 1 6 1 1 SECTION 1 GENERAL lt BLANK gt 1 2 SECTION 1 GENERAL Composition of Operation Manual This Manual is composed of 7 sections The profile of each section is shown below Section
20. 1300MHz SPAN 50KHz External 10MHz Ref 9 Synthesized Signal Generator MG3633A BNC Cable Power Combiner RF Cable2 Adapter 1 1 RF Cable1 RF Cable3 Frequency Counter Hp5350B lt Center frequency readout accuracy gt 6 8 SECTION 6 PERFORMANCE TESTS 6 3 2 4 Procedure Step Procedure 1 Set the power supply switch on the 2398 rear panel to ON and then the power UJ 9 switch on the 2398 front panel to ON Press the 2398 PRESET key Press PRESET softkey and then ALL CAL softkey Set the signal generator output frequency equal to the center frequency 1300 MHz in the following table Frequency 1300 2 10 dBm Setthe 2398 to the center frequency in the table and the attenuator to 10 dB Setthe 2398 as follows center frequency 1300 MHz Reference level OdBm 50kHz Using the marker function read the marker frequency and check that the value is within the range between the maximum and minimum values shown in the following table Repeat steps 4 to 7 for other combination of the center frequency and span according to the combination shown in the following table Calculate the Center Frequency accuracy by using the following equation Center frequency accuracy Measured frequency Reference Oscillator accuracy
21. Contrast To change the LCD contrast level perform the following key operations DISP CONTRAST gt v Step key 485 M Scroll key To decrease the LCD contrast level press the step down key or turn the scroll key counterclockwise To increase the LCD contrast level press the step up key ortum the scroll key clockwise SECTION 5 OPERATING PROCEDURES GRAT ON OFF This key toggles the graticule ON or OFF To delete the graticule on the screen perform the following key operations DISP gt MORE ON OFF ANNOT ON OFF This key annotation toggles ON or OFF To delete the annotations on the screen perform the following key operations DISP ANNOT ON OFF Annotations are identified below T Triggered Mode S Single Sweep Mode INVERSE ON OFF This key toggles video inversion ON or OFF To invert the background color and the trace waveform press the following key operations DISP MORE INVERSE ON OFF 5 34 SECTION 5 OPERATING PROCEDURES TRIGGER FUNCTIONS The TRIG key is the header key for using the trigger function Iktz 2 7GHz spectrum analyzer FRE 1 2 3 5 FI SPAN sevore 7 en E AMPL Hz
22. SECTION 2 PREPARATIONS BEFORE USE 2 1 Installation Site Environment Conditions 2 3 Locations to be avoided 2 3 Fari clear nce eee tee pt e REOR 2 3 Safety eene 2 4 bim CUR ER GU FUR HR Diete 2 4 Input level to RF 2 5 Preparations before Power on 2 6 Protective grounding 2 7 Replacing FUSE nen 2 8 Precaution for Handling Memory Card option 2 10 AC DC power and rechargeable battery pack option 2 1 Replacement of fuse for DC power option 2 12 How to contact DC Battery pack option 2 13 SECTION 3 PANEL DESCRIPTION ted 3 1 Product Specification 33 Table of O Connectors eet e em 35 IEEE 488 e e Rete mes 3 6 RS 232C eerte tere eee 37 2225 ett ten erence 3 8 DC Input Connector nope ee at a Seed eret dos 39 SECTION 4 SOFT KEY mmm 4 1 Menu Tree xr eode ee ette p et 4 3 5 44 ee 45 TRAGE
23. VIEW A B When this key is pressed the A B Trace leaves the normal write mode The unit stops the LCD writing operation and displays the contents of the A B memory To retum to the normal write mode push CLR amp WRT again BLANK A B When this key is pressed trace data is erased from the screen but the contents of the memory still remain The trace can be redisplayed by selecting VIEW function TRACE BLANK A B 5 26 SECTION 5 OPERATING PROCEDURES Computation use the trace computation perform the following key operation Display the computation and moving soft menu TRACE MORE MATH ry Y Y A B gt A B DL gt B A B gt A A B DL gt A A EXCH B RETURN The result A memory contents become the difference between the original A memory or the sweep data and the B memory That is if Trace A is in the VIEW or BLANK mode the difference is taken between the A and B memories and the result stored in A But if Trace A is in the CLR amp WRT mode the current sweep result has B memory data subtracted from it and is stored in A When Trace A is in the VIEW or BLANK mode it subtracts the Display Line from the B memory data and saves the result in B But when Trace B is in the CLR amp WRT mode it subtracts the Display Line from the current sweep result and saves the result in B Adds Trace A and Trace B displays
24. 10 MHz Frequency span readout accuracy Resolution Bandwidth selectivity Sideband noise Amplitude display linearity Reference level accuracy Second harmonic distortion Resolution bandwidth switching enor Input Attenuator switching error Attenuator Attenuator 1 HP8494 Attenuator 2 HP8496 Frequency Range Attenuation Repeatability Frequency Range Attenuation Repeatability DC 26 5 GHz 0 11GB 1 step lt 0 01 dB lt 0 05dB 18 26 5 GHz DC 26 5 GHz 0 110 dB 10 step lt 0 01 dB lt 0 05dB 18 26 5 GHz Amplitude display linearity Input attenuator switching eror Power Meter HP 437B Frequency range Measure Range Power resolution 100 kHz 110 GHz 70 dBm 44 dBm 0 001 dB Frequency response Reference level accuracy Input attenuator switching error Power sensor HP8481A 6 4 Frequency range VSWR max Power range 10 MHz 18 GHz 1 4 10 MHz 30 MHz 1 18 30 MHz 50 MHz 1 1 50 MHz 2 GHz 118 2 GHz 12 4 GHz 1 28 12 4 GHz 18 GHz 30 dBm 20 dBm Frequency response Reference level accuracy Input attenuator switching error SECTION 6 PERFORMANCE TESTS Instruments Required for Performance Test 2 2 Recomended instrument Required Performance Test Item name Model name Item Specification Power sensor HP8481D Frequency range VSWR max Power range 10 MHz 18 GHz 1 4 10 MHz 30 MHz
25. Fig 5 12 Delta Marker Marker off The markers are tumed off and the softmenu disappears from the screen by the following key operation OFF SECTION 5 OPERATING PROCEDURES Peak Search Functions The 2398 has the following four marker search functions Peak Search Next Peak Search Next Right Peak Search Next Left Peak Search Peak Search Peak Search detects the maximum level point from the entire trace in which a marker is displayed and moves the marker to that point Execute peak search by performing the following key operations PEAK SCALE 10 55 43 27 9 dem LOG 10 d 0 40 0020 MHz manual 30 00dBm MARKER KJ a aaran NE MS NEXT PEAK ME ut MN Ma PEAK LEFT PEAK RIGHT OFF i j MKR NOS 40 0020 MHz 500 0 kHz 10 kHz 10 kHz 50 0 ms OFF int re _ auto auto auto CENTER SPA RBW VBW SWEEP Fig 5 13 Peak Search SECTION 5 OPERATING PROCEDURES Next Peak Search Next Peak search detects the next largest peak relative to the current marker level and moves the marker to that point When there are two or more with same level on the screen the left most peak is detected Execute Next Peak search by performing the following key operations PEAK NEXT The next largest peak can be detected and the marker can be mov
26. Frequency 100 MHz Power 0 dBm Set the amount of attenuation of the attenuator HP8496B to 0 dB Adjust the signal generator output level so that the indicated value of the power meter is 10 dBm Set the 2398 attenuation to 0 dB Press PEAK key to set the signal peak to the center of the screen Read the marker value Add or subtract the difference between the power meter and the 2398 to all amounts in the table calibration factor Calculate Input Attenuator switching error Error Marker Level value Reference value Change the attenuator to other values in the table and repeat steps 7 9 2398 Marker Reference level 6 40 60 dBm 50 dBm 40 dBm 30 dBm 20 dBm 10 dBm SECTION 6 PERFORMANCE TESTS 6 3 13 Residual FM 6 3 13 1 Specification lt 100 Hz p p 50 ms RBW 1 kHz VBW 1 kHz 6 3 13 2 Test Instruments Modulation Analyzer HP8901B BNC Cable BNC male BNC male 6 3 13 3 Setup Hp8901B IF OUTPUT Modulation Analyzer SPECTRUM ANALYZER lt Residual FM gt 6 41 SECTION 6 PERFORMANCE TESTS 6 42 6 3 13 4 Procedure Step Procedure 1 Press Preset key 2 Press ALL CAL softkey 3 Set the 2398 as shown below Center frequency 40 2 Reference level 1
27. L RETURN Retum to the previous menu Set the PASS FAIL mode using this key When the spectral waveform is within the upper limit line and lower limit PASS is displayed on the screen If not FAIL is displayed on the screen LIMIT J PASS CHK ON OFF When ON is selected the upper limit line is checked LIMIT UPPER ON OFF When ON is selected the lower limit line is checked LIMIT LOWER ON OFF When ON is selected beep if pass check fails LIMIT ALARM ON OFF 5 60 SECTION 5 OPERATING PROCEDURES WINDOW FUNCTIONS The WIN key is the header key for using the window function 9kHz 2 7GHz spectrum analyzer 7 FUNCTION ra C 2 3 99 5 9 OB OBO DOO i SA RECALL 11 27 39 1 fem WIN MM ON UPR ZONE s LOWER 40 00 MHz 20 00 MAZ 300 kHz 300 kz 50 0 ms ZONE int re auto auto auto CENTER SPAN RBN VBN SWEEP TT A OKZ ZUON i 200 H TOGGLE OFF 37500000 GHz 50 16 auto auto auto CENTER SPAN VBN Fig 5 32 Window Function 5 61 SECTION 5 OPERATING PROCEDURES The WINDOW function splits the display into two display zones upper display area lower display
28. PCMCIA BMP FILE SAVE OPTION To select the printer perform the following key operations CONFIG HARD COPY SET gt HP LASERJET RETURN PCMCIA 5 42 SECTION 5 OPERATING PROCEDURES RS 232C Configuration The system can be remotely controlled using RS 232C interface To set up RS 232C protocol perform the following key operations CONFIG RS 232C CONFIG gt BAUD RATE Setup the transfer speed baud rate Default Value 19200bps gt DATA LENGTH Setup the data length Default values 8bit m STOP BIT Setup the stop bit length Default values 1 bit m PARITY BIT Setup the parity bit Default value none RETURN Retum to previous menu GPIB Address To set up GIPB configuration perform the following key operations The GPIB address set up can be done using the step key or the scroll key CONFIG GPIB XX 0 31 Clock Set Set the date and time by performing the following key operations CONFIG CLOCK SET YEAR XX Input year by using the scroll or the step key 1996 2095 gt MONTH XX Input month by using the scroll or the step key 1 12 gt DAY XX Input day by using the scroll or the step key 1 31 HOUR XX Input hour by using the scroll or the step 0 23 MINUTE XX Input minute by using the scroll or the step key 0 59 SECOND XX I
29. Power Sensor Step Attenuator RF cable 1 2 3 RF splitter 6 3 9 3 Setup CF 100MHz SPAN 200KHz Synthesized Signal Generator MG3633A Attenuator lt 1 5dB 100 dBm 30 dBm 10dB div MG3633A HP437B HP8481A HP8481D HP8496B HP8494B N male N male Splitter RF Cable2 Hp8496B RF Cable1 Hp8494B RF Cable3 Power Meter Hp437B lt Reference level Accuracy gt SECTION 6 PERFORMANCE TESTS 6 3 9 4 Procedure 6 3 9 4 1 Power meter calibration and Reference Calibration Step Procedure 1 Connect the Power Meter HP437B to Power sensor HP84814A 2 Connect the Power sensor to Power Meter input port 3 Push Power REF button of Power Meter and then display value 0 dBm 4 If displayed value is not 0 dBm tum Cal 5 Setup the test equipment as shown above 6 Adjust Signal generator output level to 10 dBm Frequency 100 MHz Power 10dBm 7 Press PRESET key 8 Press ALL CAL softkey 9 Set the 2398 as shown below Center frequency 100 MHz Reference level 0 dBm Span 2 RBW 2 VBW 10 2 10 Adjust Signal generator output level so that the Reference level in the table below is indicated on th
30. STOP CONTINUE OBW CHANNEL POWER ACP MEAS RETURN X dB END BAND B ON OFF BAND C ON OFF RETURN CHANNEL BANDWIDTH RETURN 1kHz 100Hz 10Hz 1Hz RETURN ACP CHANNEL SPACE CHANNEL BANDWIDTH RETURN 4 10 SECTION 4 MENU TREE Panel Key Soft Menu 1 Soft Menu 2 AUX AM ON OFF AM ON 251 DIV FM ON OFF 20 DIV AM FM SCALE 10 DIV AUDIO ON OFF 5 DIV AUDIO LEVEL 2 5 96 DIV SQUELCH LEVEL RETURN TRACKING GEN LIMIT PASS CHK ON OFF 25 kHz DIV UPPERION OFF 20 kHz DIV LOWER ON OFF 10 kHz DIV MAKE LIMIT 5 kHz DIV CLEAR LIMIT 2 5 kHz DIV ALAM ON OFF 1 kHz DIV RETURN WIN ON OFF TRACKER ON OFF UPPER ZONE OUTPUT LEVEL LOWER ZONE NORMAL ON OFF UPPER ZOOM AUTO FRQ CAL LOWER ZOOM MANUAL FRQ CAL TOGGLE ON OFF RETURN AUTOSET BLANK SELECT LOW UP MARK DOT ACCEL ON OFF UNDO CLEAR RETURN SECTION 4 MENU TREE Panel Key Soft Menu 1 Soft Menu 2 PRESET PRESET YIG CAL LAST STATE RBW CAL ALL CAL LEVEL CAL CAL MODE SPAN CAL CAL SIG ON OFF LOG AMP CAL AUTO CAL ON OFF RETURN 4 12 SECTION 5 OPERATING PROCEDURES SEC
31. Span X Span accuracy 0 5 RBW Reference Oscillator accuracy 2 ppm Span accuracy 396 6 9 SECTION 6 PERFORMANCE TESTS Measured frequency MHz Test Instrument frequency 2398 MG3633A Ceneter Frequency Minimum Measured Maximum Accuracy Frequency 1300 MHz 1300 MHz 1299 9935 1300 0066 Output Power Level 1299 9890 1300 1107 10dBm 1299 9650 1300 0351 1299 9350 1300 0651 1299 8449 1300 1551 1299 6949 1300 3051 1299 3949 1300 6051 1298 4949 1301 5050 1296 9949 1303 0050 1284 9949 1315 0050 SECTION 6 PERFORMANCE TESTS 6 3 3 Frequency span readout accuracy Using the setup shown the figure below set the frequencies corresponding the 1st and 9th division from the left side of the screen scale with the Signal Generator The frequency difference between the peak levels at the 1st and 9th divisions is equal to the frequency span 0 8 6 3 3 1 Specification Frequency span accuracy 3 3 096 6 3 3 2 Test Instruments Synthesized Signal Generator MG3633A Anritsu 1 o Frequency counter HP5350B Power combiner HP11636A o RF Cable 1 2 3 N male N male Adapter N female N female BNC Cable BNC male BNC male 6 3 3 3 Setup aiference milh Signal LJ Synthesized Signal Generator External 10MHz Ref
32. gt gt NONAME trace auto CHANNEL 1 5 BAND CHP 43 22 dBm RETURN CER E i i spectra lensity ra d E ti E n channel c bandwidth hannel bandwith Nu 1 0000000 GHz 600 0 kHz 10 kHz 100 kHz 50 0 ms int re manual manual auto CENTER VBW SWEEP Fig 5 28 Channel Power Function 5 54 SECTION 5 OPERATING PROCEDURES ACP Adjacent Channel Power ACP Adjacent Channel Power measures the channel interference with channels lower band channel amp upper band channel in multi channel communication systems For measuring ACP channel bandwidth amp spacing is determined using the center frequency in the screen ACP Measurement 1 When the ACP key F1 is pressed calculates ACP with the current channel bandwidth amp spacing at the end of the current sweep 2 When calculates ACP SAMPLE detection mode is used Set up condition to measure ACP 1 center frequency center frequency of carrier channel 2 RBW RBW lt 0 025 Channel Bandwidth 3 VBW 10X RBW 4 Sweep time AUTO 5 SPAN SPAN gt 2X Channel Spacing Channel Bandwidth 6 Scale log mode LVL SCALE 39 9 dm l0010d E NONAME trace d auto channel space carrier channel power wem mii pee eer ACP 43 46 dem
33. 115 30 MHz 4 GHz 1 2 4 GHz 10 GHz 1 3 10 GHz 15 GHz 2 35 15 GHz 18 GHz 70 dBm 20 dBm Frequency response Reference level accuracy Input attenuator switching error Power Combiner HP11636A Frequency range Input Output Impedance DC 18 GHz 50 0 Reference level accuracy Frequency response Frequency measurement accuracy 50 2 teminator HP 909F Frequency Range VSWR DC 6 GHz 18 GHz 1 005 DC 5 GHz 1 01 5 6GHz 115 6 18GHz Average noise level Frequency Counter 53508 Frequency range Resolution 1Hz 1MHz 1Hz 0 1Hz 0 01 Hz 0 001 Hz Input level max Damage level 10 Hz 20 GHz 10 MHz 20 GHz 10 MHz 80 MHz 1 MHz 10 MHz 100 kHz 1 MHz 10 Hz 100 kHz 7 dBm type 10 dBm BNc type 50 2 1Vms BNC type 1M2 25 dBm N type 250 Vide 5 kHz 5 5 Vims 28 dBm Reference oscillator frequency stability Extracts part of performance which can cover the measurement range of the test item 6 5 SECTION 6 PERFORMANCE TESTS 6 3 Performance Test For test item other than oscillator frequency stability warming up the equipment for at least thirty minutes and test the performance after the 2398 stabilizes completely Also begin measurements after taking the warm up time of the calibration instrument into full consideration In addition the test should be conducted at room temperature little AC power supp
34. 2 Manual Mode In order to select the manual mode of operation for RBW and or sweep time perform the following key operations 5 39 SECTION 5 OPERATING PROCEDURES SWP TIME MNL SWEEP TIME Video Bandwidth VBW To set the VBW perform the following key operations 1 Auto Mode When VBW is set to AUTO the VBW is set according to the RBW value 2 Manual Mode When wanting to average the noise by making the VBW narrow without regard to RBW set value or when wanting to make the VBW wide to observe the waveform of signals modulated at a high frequency use MANUAL setting The VBW value can be manually set to one of the following values 10Hz 30Hz 100Hz 300Hz 1 2 3kHz 10kHz 30kHz 100kHz 300kHz 1MHz NONE Note When VBWZ RBW is set noise is not averaged and the sweep speed is increased 5 40 SECTION 5 OPERATING PROCEDURES Input Attenuator To set the input attenuator perform the following key operations AMPL ATTEN AUTO MNL 1 Auto Mode While Auto is selected the input attenuator is Automatically set to optimum value according to the reference level Reference Level Range Attenuation Auto 30dBm to 20 1dBm 50 20dBm to 10 1dBm 40 10dBm to 0 1dBm 30 OdBm to 9 9dBm 20 10 0dBm to 19 9dBm 10 20dBm to 110dBm 0 2 Manual Setting When a signal is input with the same level as the reference level the i
35. 28 88 dBm MKR gt f i i i i f CF MKR gt REF LYL MKR gt CF STEP MKR ZOOM OUT 40 0000 MHz 500 0 kHz 30 kHz 30 kHz 50 0 ms int re manual auto t CENTER NEM Fig 5 16 Marker Zoom In LVL 20 0 dBm LOG 10 cB 10 40 000 MHz manual 29 11 dBm 07 19 35 MKR gt CF MKR gt REF LVL MKR gt CF STEP MKR ZOOM IN 40 000 MHz 2 000 MHz 30 kHz 30 kHz 50 0 ms int re manual auto auto EUH MEM lt Fig 5 17 Marker Zoom 5 23 SECTION 5 OPERATING PROCEDURES AUTOSET Pressing the AUTOSET key detects the maximum peak signal and sets that signal frequency and level to the center frequency and reference level This key can be used for changing from the remote mode to local mode when the remote LED is lit AUTOSET Notes 1 When executing the AUTOSET function the search frequency range is from 6MHz to 2 7GHz 2 All coupled parameters RBW VBW SWEEP TIME ATT are set automatically 3 Normal Marker appears on the screen 4 After conclusion of the AUTOSET function the frequency span is 1 MHz n 9kHz 2 7 GHz spectrum analyzer FUNCTION II LA me 9 9 E PAN 2 F2 ajn m G GJ GJ eyed CCI C SECTION 5 OPERATING PROCEDURES
36. 30 40 50 60 70 Log Display Linearity 5 dB DIV Test Instrument Attenuator Setting dB 0 4 Marker Value dB reference 6 26 0 5 10 15 20 25 30 35 40 0 reference SECTION 6 PERFORMANCE TESTS Log Display Linearity 2 dB DIV Test Instrument Attenuator 21 Marker Setting dB Value dB 0 reference Log Display Linearity 1 dB DIV Test Instrument Attenuator 4 Marker Remark Setting dB Value dB 0 reference 0 1 2 3 4 5 6 7 8 6 27 SECTION 6 PERFORMANCE TESTS 6 3 7 4 2 LINEAR Linearity Full scale Step Procedure 1 Press PRESET key 2 Press ALL CAL softkey 3 Setup the 2398 as shown below Center frequency 100 MHz Reference level OdBm Span 10 kHz Attenuator 10dBm RBW 1kHz VBW 10Hz Scale 10dB div 4 Set the Synthesized signal generator MG3633A as shown below Frequency 100MHz 5 Press AMPL LINEAR key and then the AMPL UNIT gt VOLT key to set the display in the linear state 6 Press PEAK MKR gt CF key and then the PEAK MKR gt REF key to set the spectrum waveform peak to the center of the screen 7 Press MKR MARKER DELTA key and increase Attenuator HP8494 HP8496 6 dB reading Amarker level 8 Calculate LINEAR Linearity Full scale Amplitude display linearity erro
37. Averaging Function The digital averaging function calculates the average data at each vertical axis point for each sweep and displays the results The averaging function improves the S N ration depending on the averaging rate and the number of sweep repetitions To use the averaging function perform the following key operations TRACE AVERAGE AVERAGE ON OFF This toggles average function ON or OFF COUNT Sets the Averaging Rate The range is 2 to 256 This value can be input using the numeric keys step key scroll key m gt CYCLE ON OFF Set the averaging NON STOP STOP after the number of times of averaging rate by pressing this key m STOP Temporarily stop average sweeping gt CONTINUE Resumes the average sweeping m RESET Deletes the trace waveform and restarts the average function RETURN Retums to the previous menu Notes regarding the use of the Averaging Funtion To specify the average count input the number of samples using numeric key and unit The default average value is 8 Averaging by video filter has the disadvantage that the sweep time becomes longer when the video bandwidth is narrowed to improve the averaging effect On the other hand digital video averaging smoothes the trace display by averaging the digital data after analog to digital conversion at each sweep without narrowing the video bandwidth VBW Since the video bandwidth VBW gets
38. CTS N Ul A RI NC Table 3 Pin Out for RS 232C Connector 1 5 Figure 4 RS 232C Connector 3 7 SECTION 3 PANEL DESCRIPTION PRINTER CONNECTOR PIN NUMBER SIGNAL STB PDO PD1 PD2 PD3 PD4 PD5 PD6 PD7 ACK BUSY PE SLCT AFD ERROR INIT SLIN Ground Ground Ground Ground Ground Ground Ground Ground m Table 4 Pin Out for PRINTER Connector 13 1 25 14 Figure 5 PRINTER Connector 3 8 SECTION 3 PANEL DESCRIPTION DC INPUT CONNECTOR PIN NUMBER SIGNAL LED Anode Battery Battery Battery Battery Battery LED Cathode Battery Table 5 Pin Out for DC Input Connector Figure 6 DC Input Connector Front view 3 9 SECTION 3 PANEL DESCRIPTION lt BLANK gt 3 10 SECTION 4 MENU TREE SECTION 4 MENU TREE TABLE OF CONTENTS Menu Tree Peer eee eee eee eee eee eee eee eee eee eee eee eee eee eee eee eee ee eee Te eee eee eee eee eee ee eee eee eee eee ee 4 3 FREQ SPAN AMPL 4 4 MKR OFF MKR g
39. Key Soft Menu 1 Soft Menu 2 TRACE CPL 4 6 CLR amp WRT A B MAX HOLD A B AVERAGE ON OFF VIEW A B COUNTLXX 2 256 BLANK A B CYCLE ON OFF SELECT STOP AVERAGE CONTINUE MORE RESET RETURN NORMAL SAMPLE POS PEAK NEG PEAK AVERAGE ALL AUTO RETURN gt B DL A B gt A B DL gt A EXCH B RETURN RBW RBWIAUTO MNL VBW VBWI AUTO MNL SWEEP TIME SWP TIME AUTO MNL SECTION 4 MENU TREE Panel Key Soft Menu 1 Soft Menu 2 TRIG CONT FREE RUN SINGLE VIDEO TRIG SOURCE LINE TRIG FLT LPF HPF EXTERNAL TRIG DELAY RETURN DISP DISPLAY LINE SELECT CHAR DISPLAY LN ON OFF SPACE THRESHLD LINE BACK SPACE THRESHLD OFF ON ERASE TITLE SCREEN TITLE TITLE DONE CONTRAST MORE GRAT ON OFF ANNOT ON OFF INVERSE ON OFF PREV 4 7 SECTION 4 MENU TREE Panel Key Soft Menu 1 Soft Menu 2 SAVE SAVE STATE 0 9 STATE DIR SAVE TRACE A 0 9 TRACE DIR SAVE TRACE B 0 9 TRACE B DIR Memory INTERNAL mode SAVE LIMIT 0 9 LIMIT DIR STATE LIST 0 9 PREV SAVE LOCK ON OFF DIR SAVE STATE SAVE TRACE A SAVE TRACE B x
40. Memory PCMCIA mode RECALL x Memory INTERNAL mode Memory PCMCIA mode SAVE LIMIT SAVE LOCK ON OFF RECALL STATE 0 9 RECALL TRACE A 0 9 STATE DIR RECALL TRACE B 0 9 TRACE A DIR RECALL LIMIT 0 9 TRACE B DIR STATE LIST LIMIT DIR DIR PREV LOAD FILE DELETE FILE NEXT PAGE PREV PAGE 4 8 SECTION 4 MENU TREE Panel Key Soft Menu 1 Soft Menu 2 CONFIG HARD COPY HARD COPY SET HP LASER ET RS 232C CONFIG PCMCIA CARD CLOCK SET RETURN GPIB ADR 0 31 PCMCIA MORE FACTORY CONFIG BAUD 600 19200 SYSTEM OPTION DATA LEN 7 8BIT 10M REF INT EXT STOP BIT 1 2BIT BEEP ON OFF PARITY NONE EVEN ODD VERSION INFO RETURN PREV XX FACTORY CONFIG REFER SERVICE MANUAL SYSTEM OPTION REFER SERVICE MANUAL YEAR XX MONTH XX DAY XX HOURIXX MINUTE XX SECOND XX ENTER PCMCIA FORMAT PCMCIA CHECK MEMORYT INT PCMCIA RETURN 4 9 SECTION 4 MENU TREE Panel Key Soft Menu 1 Soft Menu 2 MEAS dB DOWN X dB DOWN POWER MEAS QUASI PEAK MKR CNT ON OFF CNT RES XXXX X dB LEFT X dB RIGHT FORMAT REL ABSL ABSR
41. __ gt CF 500MHz SPAN 5MHz External 10MHz Ref Synthesized Signal Generator BNC Cable Power Combiner RF Cable2 Adapter RF Cable1 RF Cable3 Frequency Counter Hp5350B lt Frequency Measurement Accuracy gt SECTION 6 PERFORMANCE TESTS 6 3 6 4 Procedure Step Procedure 1 Press PRESET key Press ALL CAL softkey 3 Set up the 2398 as shown below Center frequency 100 2 5 MHZ Couple All Auto 4 Set the Synthesized signal generator as shown below Frequency 100 MHz Power 10dBm 5 Press MKR gt PEAK SEARCH key then set to Frequency Counter MEAS gt MKR COUNT ON 6 Press marker resolution MEAS gt MKR RESOL gt 1 Hz key Then press RETURN key 7 Change the counter resolution to 10 Hz and confirm that the frequency reading is 100 MHz 10Hz or less 8 Change the counter resolution to 100 Hz and confirm that the frequency reading is 100 MHz 100 Hz or less 9 Change the counter resolution to 1 kHz and confirm that the frequency reading is 100 MHz 1 kHz orless 10 Change the amplitude of the signal generator 70dBm and confirm that the frequency reading is still accurate N Signal generator 2398 Measured Frequency Standard Accuracy frequency CF Resolution Marker Frequency Measu
42. and may be damaged if it falls over as a result of receiving a slight mechanical shock Changing Fuse Cleaning Check Terminal For Safety CAUTION NEN 1 Before changing the fuses ALWAYS remove the power cord from the power outlet and replace the blown fuses ALWAYS use new fuses of the type and rating specified on the fuse marking on the rear panel cabinet T3 15A indicates a time lag fuse There is risk of receiving a fatal electric shock if the fuses are replaced with the power cord connected 2 Keep the power supply and cooling fan free of dust Clean the power inlet regularly If dust accumulates around the power pins there is a risk of fire o Keep the cooling fan clean so that the ventilation holes are not obstructed If the ventilation is obstructed the cabinet may overheat and catch fire 3 o Maximum DC voltage ratings RF Input 20VDC TG Output OVDC o Maximum AC power ratings RF Input 26dBm o NEVER input a signal power gt 26dBm gt 20VDC the to RF Input connector o Excessive power may damage the intemal circuits AN Replacing Memory Back Up Battery Storage Medium For Safety ene CAUTION 4 power for memory back up is supplied by a Primary Lithium Battery This battery should only be replaced by a battery of the same type SANYO CR12600SE FT3 sinc
43. at3dB 300 Hz 1 kHz kHz 10kHz 30 kHz 100 kHz 300 2 1 2 3 MHz lt 20 at6dB 9kHz 120 kHz Selectivity 60 dB 3dB Bandwidth lt 15 1 1kHz 3 kHz 10 kHz 30 kHz 100 kHz 300 kHz 1MHz 3 MHz 60 dB 6dB Bandwidth lt 12 1 9 kHz 120 kHz Switching eror lt 1 0 dB SECTION 6 PERFORMANCE TESTS 6 3 4 2 Test Instruments Synthesized Signal Generator MG3633A Anritsu 1 6 3 4 3 Setup iINngwifth MG3633A lt Resolution Bandwidth and Selectivity and Error gt 6 3 4 4 Procedure 6 3 4 4 1 RBW Accuracy Step Procedure External 10MHz Ref Synthesized Signal Generator RF Cable 1 Press PRESET key 2 Press ALL CAL softkey 3 Set up the 2398 as shown below center frequency 100MHz Span 10 2 Reference level 10dBm ATT Auto RBW 3MHz Scale 1dB Div SECTION 6 PERFORMANCE TESTS Sweep time Auto 4 Set the Synthesized signal generator MG3633A as shown below Frequency 100 MHz Power 15dB 5 Press PEAK MKR gt REF key and match the peak of the signal trace to the top line REF LEVEL on the screen 6 Press TRIG SINGLE softkey to execute a single sweep then check that the single sw
44. eee eer ee ee eee ree ee eee eee eer ee ere GA FUNCTIONS 48 6640 0000 6066 060 06 0 0 06 Select Trace 8 94 4 00000 CLR amp WRT Teer e ee eee eer eer MAX HOLD A B VIEW Peer eee eee e ee ere ee eee eee rere eer ee ree eee eee re eee eee ere ere eee eer e ree eee eee BLANK Computation 5 0000060 6 0 0000 0 00 0 Detection Mode Averaging Function DISPLAY FUNCTIONS 444 0
45. electric shock damage to the equipment or a major operation interruption Power on WARNING Before power The 2398 must be connected to protective ground If the power is switched on without taking this precaution there is a risk of receiving an accidental electric shock In addition it is essential to check the power source voltage If an abnormal voltage that exceeds the specified value is there is accidental risk of damage to the 2398and fire During power on To maintain the 2398 sometimes it is necessary to make intemal checks and adjustments with the covers removed while power is supplied Request service by a IFR trained service personnel who received the required training In the following special notes on safety procedures are extracted from sections other than section 2 To prevent accidents read this section together with the related sections before beginning operation 2 4 SECTION 2 PREPARATIONS BEFORE USE Input Level to RF Input Frequency range 9kHz to 2 7GHz Measurement level The maximum signal level which can be applied to the Type N RF input connector is 26 dBm The RF Input circuit is not protected against excessive power If a signal exceeding 26dBm is applied the input attenuator and input mixer will be damaged is waming mark to prevent such damage 2 5 SECTION 2 PREPARATIONS BEFORE USE Preparations b
46. or battery 2 Tum the main switch off before connecting or removing the battery pack 3 If not using the battery pack disconnect it from the system lt STEP 1 gt Open the box lt STEP 2 gt Connect the battery cable to the AC2603 SECTION 2 PREPARATIONS BEFORE USE TS lt STEP 3 gt Insert the battery into the soft carrying case as indicated above lt STEP 4 gt Connect the other side of the battery cable to the DC power jack in the rear panel as indicated above 2 14 SECTION 3 PANEL DESCRIPTION SECTION 3 PANEL DESCRIPTION In this section the front and rear panels are described TABLE OF CONTENTS S Panel Description ss cd 3 Tabl amp of V Connectors en 3 5 488 GPIB eem ee ed 3 6 BS 2920 ieee oes 37 Printer COnneGhor 3 8 DC Input Connector nea 39 M J 3 1 SECTION 3 PANEL DESCRIPTION lt BLANK gt 3 2 SECTION 3 PANEL DESCRIPTION SECTION 3 PANEL DESCRIPTION o 096 AR 2998 T IO 4 ni 6 Cx 7 s 9 9
47. power is off DC power is used to operate the system The optional AC DC power supply has a battery charging circuit for the rechargeable battery pack while the rechargeable battery pack is connected to the DC power inlet When the equipment do not use the batterg pack should be disconnected from the equipment to protect the discharging of the battery pack When the AC power is on recharging voltage is applied to the DC power connector DC power supply output can only be used for the rechargeable battery pack AC2603 DO NOT use the power supply for any other purpose 2 11 SECTION 2 PREPARATIONS BEFORE USE Replacement of fuse for DC power option The DC power fuse is 7A 250V Type T fuse If the fuse must be replaced locate and remedy the cause before replacing the blown fuse Replace the fuse according to the following procedure Step Procedure 1 Set the front panel Power switch to STBY and the rear panel Line switch to OFF Then remove the power cord from the power supply outlet 2 Tum the fuse holder cap at the rear panel 3 Remove the fuse from the fuse cap and replace it with a spare fuse The direction does not matter 4 Push the fuse cap with fuse into the fuse holder and insert it by tuming clockwise 2 12 SECTION 2 PREPARATIONS BEFORE USE How to connect DC Battery pack option 1 2603 is meant for use only with the 2398 Do not use with any other DC power supply
48. the maximum and minimum values shown in the following table Calculate the Frequency Span accuracy by using the following equation frequency f2 frequency f1 100 Span X 0 8 SECTION 6 PERFORMANCE TESTS 2398 Sigenal Generator MHz Specification Minimum span Maximum span Center Frequency 2 f1 100 MHz 200 MHz 500 MHz 1000 MHz 2000 MHz 1 94 MHz 4 85 MHz 10 3 MHz 19 4 MHz 48 5 MHz 970 MHz 8 5 kHz 194 kHz 970 kHz 2 06 MHz 5 15 MHz 20 6 MHz 51 5 MHz 97 MHz 206 MHz 485 MHz 1030 MHz 1940 MHz 51 5 kHz 206 kHz 1 3 MHz 103 MHz 515 MHz 2060 MHz SECTION 6 PERFORMANCE TESTS 6 3 4 Resolution bandwidth RBW and selectivity and switching eror RBW accuracy and selectivity When there are two input signals with a frequency difference corresponding to the 3dB bandwidth of IF final stage the signals can be resolved as two waveforms This is called resolution bandwidth The selectivity is defined by the ratio of the filter width in Hz at the 60dB point to the filter width in Hz at the 3dB point as shown in the formula below To test the resolution bandwidth and selectivity first measure the resolution bandwidth 3dB bandwidth then the 60dB bandwidth and calculate the 60dB 3dB bandwidth ratio RBW switching enor The switching error is defined as the shift in amplitude when the RBW filter is switched 6 3 4 1 Specification Accuracy lt 20
49. waveforms and title from the intemal register memory card perform the following key operations The RECALL key is the header key for recalling parameters and waveforms RECALL STATE 0 STATE 6 STATE 1 m RECALLSTATE STATE 5 STATE 9 MORE PREV Up to 10 data parameters of the unit can be recalled from the intemal or extemal memories TRAO TRA 6 TRA1 m RECALLTRACEA gt TRA5 TRA 9 MORE PREV Up to 10 trace A waveforms can be recalled from the intemal or extemal memories TRB 0 TRB 6 TRB 1 5 9 PREV Up to 10 trace B waveforms can be recalled from the intemal or extemal memories LOAD 0 LOAD 6 LOAD 1 gt RECALL LIMIT LOAD 5 LOAD 9 MORE PREV Up to 10 limits waveforms can be recalled from the intemal or extemal memories STATE 0 STATE 6 STATE 1 L STATE LIST 5 5 5 9 MORE PREV When this key is pressed the stored information is displayed on the screen STATE 0 STATE 1 DIR 2 STATE 5 MORE When this key is pressed the data size and title are displayed on the screen 5 48 SECTION 5 OPERATING PROCEDURES REF LVL SUA 18 22 20 23 9 dBm LOG 10 dB 0 dB auto RECALL E j E i STATE RECALL TRACE A RECALL TRACE B RECALL LIMIT STATE LIST Eni DIR 40 000 MHz 1 000 MHz 1
50. 0 dBm Span 10kHz RBW 1 _ 1 2 VBW 1kHz 4 Set the intemal calibration Signal 40MHz ON 5 Press MRK gt CF key to center to the spectrum waveform display on top line of the screen 6 Press SPAN ZERO SPAN 7 Connect Modulation Analyzer to Rear Panel IF output and measure frequency modulation SECTION 6 PERFORMANCE TESTS 6 3 14 3rd Order Intermodulation Two signal generator provide the signals required for measuring third order intermodulation It is difficult when the input level is 30dBm because the intermodulation signal is very close in level to the noise 6 3 14 1 Specification lt 70 dBc Input 30 dBm Input Att 10 dB 6 3 14 2 Test Instruments Synthesized Signal Generator 1 2 MG3633A Step Attenuator HP8494B HP8496B Power Meter HP437B Power Sensor HP8481A Power Combiner HP11636A RF Cable 1 2 3 4 N male N male RF Cable 5 6 7 BNC male BNC male Adapter T BNC female 6 3 14 3 Setup 89536 100MHz SPAN 200KHz mnm a 0 Gabler Power Comber p a NT 2 INT MG3633A Power Meter Synthesized Signal Genartor Power sensor cit Hp437B Synthesized Signal Genartor Hp8481A RF Cable5 g
51. 0 dBm with 300Hz filter using 1 dB div scale 0 1 dB step minimum lt 85 dBm input terminated 0 dB attenuation lt 60 dBc 40 dBm input 0 dB Input attenuation lt 70 dBc 100 MHz to 2 7 GHz 30 dBm input lt 60 dBc 1 MHz to 100 MHz 30 dBm input lt 60 dBc 10 MHz to 2 7 GHz 30 dBm input 300 Hz 1 kHz 3 kHz 10 kHz 30 kHz 100 kHz 300 kHz 1 MHz and 3 MHz lt 2096 60dB 3dB ratio lt 15 1 60dB 6dB ratio lt 12 1 9 kHz amp 120 kHz Quasi Peak Option 10 dB 3 kHz Reference RBW 10 Hz to 1 MHz in 1 3 10 steps plus None 1 7 SECTION 1 GENERAL 3 0 SWEEP 3 1 Rate 3 1 1 Sweep Rate Accuracy 3 2 Trigger 3 2 1 Source 3 2 2 Mode 3 2 3 Coupling 3 2 4 Bandwidth 3 2 5 Ext Rear Level 3 2 6 Delay 4 0 DISPLAY 4 1 Type 4 2 Digital Resolution 4 3 Marker Modes 5 0 MEMORY 5 1 Trace Storage 5 2 Setup Storage 5 3 Display Traces at One Time 6 0 INPUTS 6 1 RF Input 6 1 1 Connector 6 1 2 VSWR 6 1 3 Max Input Level 6 1 4 LO Emission 7 0 OUTPUTS 7 1 IF Output 7 2 Video Ouput 8 0 FREQUENCY STANDARD 8 1 Temperature Stability 8 2 Aging 50 ms to 1000 sec in 1 2 5 sequence 5 ms to 20 sec ZERO SPAN 20 lt 100 msec 10 for all other sweep rates Extemal rear Line Video Freerun Single DC Selectable Flat 5 Hz HPF or 100kHz LPF 3dB Nominal measured at Extemal Input TTL Level one sweep time 7 4 Monochrome STN LCD 640 H X 480 V activ
52. 0 kHz 1 kHz 250 0 ms int_ref auto auto CENTER SPAN Fig 5 25 Recall Function 5 49 SECTION 5 OPERATING PROCEDURES MEASUREMENT FUNCTIONS The 2398 provides the following 4 measurement functions X dB Down measurement Occupied bandwidth measurement Marker Frequency Counter EMC measurement option 9kHz 2 7GHz spectrum analyzer FREQ n GJ 2 CD OO GJ 6 GJ A e or m REF LVL 14 06 32 30 0 dBm 106 10 dB 0 dB auto dB DOWN MEASURE OBW QP MODE MKR CNT OFF CNT RES 1kHz 40 000 MHz 2 000 MHz 10 kHz 10 kHz 50 0 ms int_ref auto auto auto CENTER SPAN VBW Fig 5 26 Measurement Function SECTION 5 OPERATING PROCEDURES X dB Down Measurement dB Down function displays the difference in frequency and level between a reference marker and another marker that is X dB down or up from the reference The relative dB range that can be specified for X from the screen dynamic range is selected using the step key or scroll key The default value is 3 dB To use the X dB Down measurement function perform the following key operations MEAS DOWN m gt X dB DOWN Places left and right markers at X dB down from the
53. 000 1 000 30 kHz 30 kHz 50 0 ms manual auto auto VBW SWEEP int ref CENTER Fig 5 1 Center Frequency 5 4 SECTION 5 OPERATING PROCEDURES 2 Setting the frequency span To set the frequency span perform the following key operations SPAN SPAN me WIDTH Numeric key Step key Scroll key Changes a 1 2 5 step squence 1k 2k 5k 100k 200k 500k The scroll key step size is 1 500 of the current frequency span LVL SCALE 20 0 dBm LOG 10 dB 10 dB manual 19 44 45 SPAN WIDTH SPAN RESO N ONE TR ZERO SPAN LAST SPAN ZOOM IN ZOOM OUT 40 000 MHz 1 000 MHz 30 kHz 30 kHz 50 0 ms int re _ manual auto CENTER SPA RBW VBW Fig 5 2 Span Width 5 5 SECTION 5 OPERATING PROCEDURES Start Stop Freq Data Entry 1 Setting the start frequency To set the start frequency perform the following key operations FREQ START Numeric key Step key Scroll key The step up down key step size is 1 10 of the current frequency span The scroll key step size is 1 500 of the current frequency span REE LVL 19 45 12 20 0 LOG 10 db 10 TE CENTER rb rmm NR ode ond ed
54. 30 MHz to 1GHz 1 20 550 2096 100 20 14 0 GENERAL CHARACTERISTICS 14 1 Dimensions 13 75 350 mm wide including handle 7 15 185mm high 14 75 381mm deep 14 2 Weight 18 0 Ib 8 2 Kg without options 14 3 Wam up Time 15 minutes for specified accuracy 14 4 Power Requirements standard 14 4 1 Source Voltage and Frequency 100 240 VAC at 50 60Hz 14 4 2 Power Consumption 60 Watts maximum without options 1 9 SECTION 1 GENERAL 14 5 Power Requirements Optional AC DC power supply AC2568 14 5 1 Source Voltage and Frequency 100 240 VAC at 50 60Hz A 13 21VOC Use only AC 2603 battery 14 5 2 Battery With 2603 14 4 Volt nominal 14 5 3 Power Consumption 80 Watts maximum 14 6 Fuse Requirements 14 6 1 F1 F2 14 6 1 1 100 to 120 VAC 3 15 A 250 V Type T 14 6 1 2 220 to 240 VAC 3 15 A 250 V Type T 14 6 1 3 13 21 VDC 7A Type S Optional AC DC Power Supply 14 7 Environmental Range 14 7 1 Use Indoor 14 7 2 Operating Temperature 0 to 40 14 7 3 Storage Temperature 20to 70 C 14 7 4 Temperature Humidity Meets MIL T 28800E for Type 2 Class 5 non condensing 8596 operating 9096 storage 14 7 5 Vibration Meets MIL 28800E for Type 2 Class 5 14 7 6 Altitude Operation up to 3 000 meters Non operational up to 40 000 feet 14 8 Product Safety Complies with EN61010 1 14 8 1 Supplemental Environmental Conditions 14 8 1 1 Mains Supply Voltage Fluctuations lt t 1096 of the nominal voltage 14 8 1 2 Transient O
55. ATT 0 dB RBW 300 2 6 35 SECTION 6 PERFORMANCE TESTS VBW 10Hz Detector mode Negative detect 4 Terminate the RF Input with a 50 2 terminator 5 Press PEAK MKR gt CF key to set the spectrum waveform peak to the center of the screen 6 Change the 2398 as shown below 7 Press TRACE MORE gt AVERAGE gt AVERAGE ON gt COUNT 16 key 8 Press TRACE MORE gt AVERAGING gt CONTINUE key to start the averaging and wait until the 16 sweeps has been completed 9 Press PEAK key to execute peak search At this point read the level value at the marker C enter Frequency Average noise level Remark 10 kHz 100 kHz 1 MHz 2 7GHz 6 36 SECTION 6 PERFORMANCE TESTS 6 3 11 Second harmonic distortion The main point of the test is to apply a signal with harmonic distortion that is lower than the 2398 intemal harmonic distortion at least 20dB below to the 2398 and measure the level difference between the fundamental signal and the second harmonic A low distortion signal source can be obtained by a applying signal to the 2398 after passing the signal through a low pass filter LPF 6 3 1L1 Specification Second harmonic distortion 6 3 11 2 Test Instruments Synthesized Signal generator RF cable 1 2 3 LPF o RF splitter o RF power meter 6 3 11 3 Setup lt eodBc Input level 40 dBm MG3633A N male N male Wi
56. CTION 2 PREPARATIONS BEFORE USE SECTION 2 PREPARATIONS BEFORE USE Installation Site and Environmental Conditions Locations to be avoided The 2398 operates normally at temperatures from 0 to 40 C However for best performance the following situations should be avoided Where there is severe vibration Where the humidity is high Where the equipment will be exposed to direct sunlight Where the equipment will be exposed to active gases In addition to meeting the above conditions to ensure long term trouble free operation the equipment should be used at room temperature and in a location where the power supply voltage does not fluctuate greatly If the 2398 is used at normal temperatures after it has been used or stored for a long time at low temperatures there is a risk of short circuiting caused by condensation To prevent this risk do not tum the 2398 on until it has been allowed to dry out sufficiently Fan clearance To suppress any intemal temperature increase the 2398 has fan on the rear panel As shown in the diagram below leave a gap of at least 10cm between the rear panel and wall nearby equipment or obstructions so that fan ventilation is not blocked 10cm WALL E CAUTION A 2 3 SECTION 2 PREPARATIONS BEFORE USE Safety Measures This paragraph explains the safety procedures which should be followed under all circumstances to prevent the risk of an accidental
57. Cal Mode m n 1 5 64 Cal Signal 5 64 Auto Cal ON OFF menn nennen nnne nnns 5 64 s J 5 2 SECTION 5 OPERATING PROCEDURES SECTION 5 OPERATING PROCEDURES FREQ SPAN FUNCTIONS The observation frequency of the 2398 is set in either of two modes Center Span Mode Start Stop Mode The upper and lower limits are 0 Hz and 2 7GHz respectively The FREQ key is used as the header key for setting the frequency The SPAN key is used as the header key for setting the frequency span se Ce Jd GC xe c s m 2 7 save RECALL i J 9kHz 2 ZGHZ spectrum analyzer 5 3 SECTION 5 OPERATING PROCEDURES Center Span Data Entry 1 Setting the center frequency To set the center frequency perform the following key operations FREQ CENTER gt Numeric key Step key gt Scroll key The step up down key step size is 1 10 of current frequency span The scroll key step size is 1 500 of the current frequency span RE LV VARKER 19 44 14 20 0 1081087 10 mua CENTER aa aaa aa a oomz STOP STEP 40
58. Center frequency Power dBm Specification 100 MHz lt 70 dBm 500 MHz 1000 MHz 1500 MHz 2000 MHz 2500 MHz 6 49 SECTION 6 PERFORMANCE TESTS 6 3 17 Input VSWR This test verifies the Input VSWR of the spectrum analyzer 6 3 17 1 Specification lt 1 5 1 inputAtt 10 dB 150kHz 2 7GHz 6 3 17 2 Test Instruments Network Analyzer 1 HP 87200 frequency Range 50 MHz 20 GHz Network Analyzer 2 HP 8751A frequency Range 5Hz 500 MHz S parameter HP87511A 100 kHz 500 MHz Calibration Cable HP 85131 60012 3 5 mm flexible HP 85131 60013 3 5 mm flexible Calibration Kit HP85052B 3 5 mm Calibration Kit HP 85032B Calibration Kit Adapter SMA female N male 6 3 17 3 Setup RL 0 dBm VSWR 1 5 1 ISS EEE EN dea To Network Analyzer E B i Start 100MHz Stop 2700MHz Calibration Cable RL 0 dBm VSWR 1 5 1 Network Analyzer RL 10 dBm Log 10dB Att 10dB Hp8751A 500MHz SPAN 5 MHz Start 100MHz Stop 150MHz lt Input VSWR gt 6 3 17 4 Procedure 1 Follow the Net
59. LD LINE THRESHLD LN ON OFF Threshold line Threshold Line is a horizontal line such that the waveform is displayed above the threshold line It can be set between the reference level and the lowest level with the numeric keys or step keys or scroll key In the OFF setting the threshold line disappears from the screen The step size of the step up down keys is 1 division of the vertical range The step size of the scroll key is 0 1 dB REF LYL SCALE 22 8 dBm 106 10 dB 39 988 MHz 1 000 MHz 30 kHz 30 kHz 50 0 ms int ref manual auto CENTER SPAN RBW VBW 13 41 27 DISPLAY LINE DISP LN OFF THRESHLD LINE THRESHLD ON J SCREEN TITLE CONTRAST MORE Fig 5 21 Display Function SECTION 5 OPERATING PROCEDURES Screen Title A title of display spectrum or waveform be labeled with this function The input screen title can be used for a printer and memory function To make the screen title perform the following key operations When SCREEN TITLE softkey is pressed characters are displayed DISP SCREEN TITLE gt SELECT CHAR Select the desired character with the scroll key and selects it with this soft key gt SPACE Enter a space blank LI BACKSPACE Erase the last character m ERASE TITLE Clearall titles being displayed gt TITLE DONE Select the screen title and retum to the previous menu
60. Line Trigger Meere 5 37 Exemal oiseau tun bnc E 5 37 Trigger Delay 5 37 COUPLED FUNCTIONS _ 5 38 Re ae Cr ee e ere e ae 5 38 RBW and Sweep Rated 5 39 Video Bandwidth VBW m 5 40 Input Attenuator i oct tete te e et eee pct 5 41 CONFIGURATIONS ibunt aes eee 5 42 Bait CDU 5 42 o 5 42 RS 232C Configuration cAI MULUS 5 4 13 GPIB ACROSS ees a eect dpa es Clock Set oo ope e tee eas TOMIREE INTEXT ON OFF nnne Version INFOrmation e eet e hte e be eet MEMORY CARD FUNCTION option e SAVE AND RECALL FUNCTIONS 1 Intemal Register mT M M Save Parameters and Wavefomm see Recall Parameters Waveform MEASUREMENT FUNCTIONS 2 Down Measurement eee et ette Occupied Power Bandwidth Measurement Marker Counter aec aste a te Fe tete ut QP EMC Measurement option bd env ret M ue Channel Power tee epe Et eh oit de Adjacent Channel POWer 2 E ere eoe te DEMODULATION AND AUDIO FUNCTIONS AM Derniodulall h 9 rettet ir
61. Right Search 5 20 Marker Track aa dee 5 20 Marker pto rper 5 21 SETTING PARAMETERS USING MARKER VALUES o 5 22 Setting Parameters Using Marker Values 5 22 MKR gt CF STEP MKR DELTA STEP 5 22 AMKR DSPAN RR ennemi 5 22 MKR ZOOM IN ZOOM OUT e 5 23 AUTOSET NF ERU EE Nr E UR SUE RUE 5 24 TRACE FUNCTIONS ead a Ee Re let c iU 5 25 Select aCe 3 oo RSEN Ses 5 26 CES WERT ALB auis oed teet do mu bd deduc nig 5 26 MOCHORD AIB NE D ee 5 26 r p 5 26 BLANK AJB utet teet tst 5 26 Combo EU 5 27 DETECTION Mode te t n e E Oe ERE 5 28 Averaging PUniction te 5 30 DISPLAY FUNCTIONS Poe ei ce ay 5 31 Display Le SEDE 5 31 Threshold Line mts 5 32 Sereen THe 2 5 33 5 33 GRAT ON ORF to tata natis 5 34 ANNOT ON OFF t tee qe e tito deeds 5 34 INVERSE ON OFF tee mete 5 34 TRIGGER FUNCTIONS 2 5 35 Continuous Sweep Mode mrt ettet enters eene 5 35 Single Sweep Mode ne m ee e t ette 5 35 T idgered M d nop aite pate esent edd 5 36 THgger SOUICG oo oq eae v PII ee DM uti e 5 36 Trigger Filter eene 5 36 Trigger td 5 36
62. SEARCH key and record marker amplitude Marker Amplitude 2398 dBm Specification dBm 6 47 SECTION 6 PERFORMANCE TESTS 6 3 16 Local Oscillator Emission This test measures the Local Emission power from the input of spectrum analyzer This is measure of how well the local oscillator is isolated from the RF input connector 6 3 16 1 Specification lt 70dBm Input Att 10 dB 6 3 16 2 Test Instruments Spectrum Analyzer IFR2390 RF Cable N male N male 6 3 16 3 Setup IFR2390 IFR2398 RF Cable1 RL 20 dBm RL 30 dBm 6 3 16 4 Procedure 1 Press PRESET key 2 Press ALL CAL softkey 3 Set up the 2398 as shown below lt LO Emission gt 100 MHz Center frequency Zero Span 5 Span Reference level Reference gap ATT 6 48 SECTION 6 PERFORMANCE TESTS 4 Set the IFR2390 as shown below Center frequency 3410 7 MHz Center Frequency of 2398 Span 100 kHz Reference level_ 150 dBm RBW 3kHz C s one 5 Read the power level of IFR2390 and record 6 Press FREQ CENTER key to change 2398 center frequency The IFR2390 must also change the center frequency 7 Repeat step 5 through 6 2398 Measured 2398
63. Spectrum Analyzer nm 2398 9 2 7GHz spectrum analyzer FUNCTION FREQ 1 2 9 9 F1 SPAN REMOTE y g MARKER F4 MKR gt PEAK BJE T I N AUTOSET LOCAL SAVE RECALL win CONTROL F5 TRIG CPL MEAS AUX F6 DISP TRACE v PRESET CONFIG TRACKING GENERATOR ANALYZER INPUT OkHz 27GHz 9kHz 27GHz 20 0 26dBm Operation Manual 2398 Spectrum Analyzer Operation Manual Vol 1 Read this manual before using the equipment Keep this manual with the equipment FR Americas Inc Safety Symbols 5 Where these symbols or indications appear on the instrument or in this manual they have the following meanings WARNING Risk of hazard which may cause injury to human body or danger to life If a WARNING appears on the instrument and in this manual do not proceed until its suitable conditions are understood and met CAUTION Risk of hazard which caused fire or serious damage to the instrument or other equipment Do not proceed until its suitable conditions are met GROUND Ground terminal to chassis earth Repair Falling Over For Safety tt WARNING A
64. TER Fig 5 24 Save Function 5 46 SECTION 5 OPERATING PROCEDURES Save Parameters and Waveform The SAVE key is the header key for saving parameters and waveforms To save the current parameters waveform data and title to the intemal register or memory card perform the following key operations m SAVE STATE 0 STATE 6 STATE 1 m gt SAVE STATE STATE 5 STATE 9 MORE PREV Up to 10 data parameters of the unit can be saved to the intemal or extemal memories TRA 0 TRA 6 gt SAVE TRACEA gt TA 5 9 MORE PREV Up to 10 trace A waveforms can be saved to the intemal or extemal memories TRB 0 TRB 6 gt SAVETRACEB y 5 9 MORE PREV Up to 10 trace B waveforms can be saved to the intemal or extemal memories STATE 0 STATE 6 L SAVE LIMIT STATE 1 M STATE 5 STATE 9 MORE PREV Up to 10 limite may be saved to the intemal or extemal memories LISTO LIST 6 STATE LIST gt Hara oo LIST5 LIST 9 MORE PREV When this key is pressed the saved information is displayed on the screen gt SAVE LOCK ON OFF This key is used for locking purposes to prevents accidental data or state erasure STATE DIR gt DIR TRACE A DIR TRACE B DIR When this key is pressed data size and title are displayed on the screen 5 47 SECTION 5 OPERATING PROCEDURES Recall Parameters and Waveform recall stored parameters
65. TION 5 OPERATING PROCEDURES TABLE OF CONTENTS S FREQ SPAN FUNCTIONS eeesessossosososssosesesceseesesseseesoseosoososeososoosoosoososossosossossosossesosseesoeseesee Center Span Data Enty Start Stop Freq Data Entry Setting CF Step Size T 0 0 0 000 Z00 0 X Setting Full Span Setting Zero Span DE Retum to the Previous Span Zoom In Zoom Out TREE cop es nes 06 6 Coloss ee Use UEM a Ee AMPLITUDE FUNCTIONS 0 00 006 6 Selecting Log Linear Detector Mode NG OE DOR Setting Amplitude Units Pee ESTES eee e ee eer Setting Reference Level 8 8 88 9 006 00 6006666 Setting Amplitude Scale sessessessscssecesosessssesseetososessessseteosssesevteosceossveceesocesseceseee Reference Level Offset PETI Setting Input Attenuation Peer ee eee eee ee Teer eres MARK FUNCTIONS eee eee eee eee reer eee rere er eee eee ere er eee eer eer eee ee ee ere e ee eee ree eee Terre ere ee eee er eee eee e reer errr es Changing Marker Position 4 4
66. TUDE FUNCTIONS key is used as the header key for setting the amplitude 9khtz 2 7 GHz Spectrum zer FREQ EB 2 5 3 2515 Woo00 e8 E363 1 TRACKING GENERATOR Selecting Log Linear Detector Mode To set the amplitude scale to log scale or linear scale perform the following key operations 1 Setting log detector AMPL LOG 2 Setting linear detector AMPL LINEAR The reference level remains constant independent of switching between log and linear Setting Amplitude Units In log scale the 2398 provide the five types of reference level units dBm dBmV dBuV VOLTS WATTS To select one of the reference level units perform the following key operations The reference level unit used for the linear scale is only in Volts AMPL UNITS dBm RETURN dBmV dBuV VOLTS WATTS SECTION 5 OPERATING PROCEDURES Setting Reference Level Set the reference level top graticule by performing the following key operations AMPL REF gt LEVEL Numeric key Step key Scroll key The step key size is the 1division of current scale The scroll key step size is 0 1 dB Setting A
67. WER SUPPLY AC2570 Option 5 PCMCIA CARD INTERFACE Accessries for 2398 0100 Near Field Probe Set AC2388 1 GHz Active Probe AC2600 Maintenance Manual AC2602 Connector and Cable Assembly Kit AC2603 Battery Pack must be used with AC DC Power Supply AC4101T Retum Loss Bridge 4250 to Type Adapter 75 ohm to 50 ohm 5008 DC Block 7800 Type F to type Adapter 75 ohm to 50 ohm AC8700 UHF Antenna 1 5 SECTION 1 GENERAL Specifications NOTE A fifteen minute warm up time shall 1 0 FREQUENCY 1 1 Frequency range 9 0 kHz to 2 7 GHz 1 2 Tunning Resolution 1 Hz Mimimum 1 3 Frequency Span Width 100 Hz div to 270 MHz div in 1 2 5 step selections auto selected plus ZERO Span and FULL SPAN 9kHz to 2 70 2 Manual selection of start stop and span 1 4 Span Accuracy 3 of the indicated Span Width 1 5 Readout Accuracy Span Accuracy Frequency Standard Accuracy 50 of RBW 1 6 Frequency Counter 1 6 1 Resolution 1 kHz 100 Hz 10 Hz 1 Hz user selectable 1 6 2 Accuracy t Reference frequency error X marker frequency accuracy counter resolution 1 count 1 6 3 Sensitivity lt 70 dBm 50 kHz to 2 7 GHz 1 7 Stability 1 7 1 Residual FM 100 HZp p in 200ms 91 kHz RBW 1 kHz VBW P P in 20 ms 1 7 2 Noise Sidbands 90 dBc Hz 910 kHz offset 2 0 AMPLITUDE 2 1 Measurement Range 20 to 105 dBm 2 2 Average Displayed Noise Level 50 kH
68. al The fault is due to misoperation misuse or unauthorized modification or repair of the equipment the customer fault is due to severe usage clearly exceeding normal usage The fault is due to improper or insufficient maintenance by the customer The fault is due to natural disaster including fire flooding and earthquake etc The fault is due to use of non specified peripheral equipment peripheral parts consumables etc The fault is due to use of non specified power supply or in non specified installation location In addition this warranty is valid only for the original equipment purchaser It is not transferable if the equipment is resold IFR will not accept liability for equipment faults due to unforeseen and unusual circumstances nor for faults due to mishandling by the customer IFR Contact If this equipment develops a fault contact office of IFR at the address in the operation manual or your nearest sales or service office Front Panel Power Switch If the equipment is in the standby state the front power switch of this equipment tums on the power when it is pressed If the switch is pressed continuously for one second in the power on state the equipment enters the standby state to prevent malfunction caused by accidental touching In the power on state if the power plug is removed from the outlet then reinserted the power will not be tumed on Also if the line is disconnec
69. area To use the window function perform the following operations WIN m WINDOW ON OFF When the status is selected the screen displays two split zones gt UPPER ZONE The upper zone is activated I J LOWER ZONE The lower zone is activated UPPER ZOOM The upper zone is activated and becomes the normal display r LOWER ZOOM The lower zone is activated and becomes the normal display 3 TOGGLE ON OFF Toggles the sweep function to update the upper and lower zone altemately 5 62 SECTION 5 OPERATING PROCEDURES PRESET FUNCTION The preset key is the header key for the preset and calibration functions When the PRESET key is pressed the following soft menus are displayed PRESET LAST STATE ALL CAL CAL MODE CAL SIGLON OFF AUTO CAL ON OFF PRESET Pushing the preset key retums all of the analyzer parameters to the following values Factory Initial Set up Center Frequency Frequency Span Reference Level Detector Scale Sweep Time RBW VBW ATTEN Trigger Marker Display Line Threshold Line Trace Detector Mode Cantrast 1 375GHz 2 75GHz OdBm LOG 10 dB DIV 50 msec AUTO mode 3MHz 1 10 dB AUTO mode Free Run OFF OFF OFF AUTO mode AUTO mode POS PEAK 60 5 63 SECTION 5 OPERATING PROCEDURES LAST STATE Pressing the LAST STATE key retums all of the analyzer parameters back to the la
70. aution If a memory card containing data is reinitialized all data will be destroyed 2 Insert the memory card 3 Perform the following key operations for memory card initialization CONFIG PCMCIA PCMCIA FORMAT Initialization the memory card FORMAT CHECK Check the memory card gt MEMORY INT PCMCIA Select the the memory card P RETURN 5 45 SECTION 5 OPERATING PROCEDURES SAVE AND RECALL FUNCTIONS 2398 save the setup conditions Parameters and waveform data Trace to an intemal register or memory card option This data can be recalled and used IkHz 2 7GHz spectrum analyzer FUNCTION re OOO a tee C 2 OO 0000 N Internal Register The intemal register uses RAM with battery back up in the 2398 The intemal registers can save the following data and waveform A Unit Setting conditions 10ea B Trace A wavefom 10ea C Trace B waveform 10ea D Limit Line 10ea SCALE 18 22 20 23 9 dBm LOG 10 dB 0 dB auto RECALL STATE RECALL TRACE RECALL TRACE B RECALL LIMIT STATE LIST 40 000 MHz 1 000 MHz 10 kHz 1kHz 250 0 ms i Em auto nt re CEN
71. changed from AUTO to MNL mode by pressing CF STEP soft key In CF STEP MNL manual mode the step size can be set by the numeric keys If CF STEP AUTO MNL AUTO is selected the CF Step size will be selected by 1 10 of the current span REF LVL SCALE 19 45 46 0 0dm LOG 10 dB 10 Laki CENTER Sy STOP CF STEP AUTO 40 000 MHz 1 000 MHz 30 kHz 30 kHz 50 0 ms int re _ manual auto CENTER SPAN RBW VBW Fig 5 5 CF STEP 5 8 SECTION 5 OPERATING PROCEDURES Setting Full Span To set full span and leave the other parameters perform the following key operations SPAN ___ FULL SPAN SCALE 20 0 dBm LOG 10 dB 10 dB 19 46 14 manual SPAN i WIDTH ZERO SPAN LAST SPAN ZOOM IN ZOOM OUT 1 375 GHz 2 750 GHz 30 kHz 30kHz 7 65 int ref B manual auto auto CENTER SPAN RBW VBW 1 Fig 5 6 Full Span SECTION 5 OPERATING PROCEDURES Setting Zero Span The 2398 Spectrum Analyzer can operate as selective level meter in which the horizontal axis is graduated as a time axis by setting the frequency span to 0 Hz The rising and falling edges of signal burst wave can also be observed and measured Performing any of the following key operations allows the 2398 to operate in the zero span mode SPAN ZERO SPAN sean o jJ In the frequency and
72. comparatively wider and the time required for each sweep can be shortened the entire spectrum image can be verified quickly and a repetitive sweep can be stopped when the required smoothing has been obtained The problem of averaging with the video filter is that the time required for smoothing each sweep becomes longer and it takes long time to verify the entire spectrum image 5 30 SECTION 5 OPERATING PROCEDURES DISPLAY FUNCTIONS The 2398 provides functions related to the screen display such as Display line Threshold line Screen Title contrast control and so IkHz 2 7GHz spectrum analyzer SANCTION LLLA FRE 1 2 9 9 FI SPAN nemore vs DOLT AMPL e s 2 fa DM Display Line The Display Line is a horizontal cursor line that runs across the screen for making level comparisons It can be set between the reference level and the lowest level with the numeric key or step key or scroll key In the OFF setting the display line disappears from the screen DISP DISPLAY LINE DISPLAY LN ON OFF The step size of the step up down key is 1 division of the vertical range The step size of the scroll key is 0 1 dB SECTION 5 OPERATING PROCEDURES DISP THRESH
73. composition Explanation SECTION 1 Product outline standard configuration options applicable GENERAL parts peripheral devices and specifications SECTION 2 PREPARATIONS Operations to be accomplished before applying power BEFORE USE SECTION 3 PANEL Description of the front and rear panels DESCRIPTION SECTION 4 SOFT KEY MENU Description of the soft key menu SECTION 5 OPERATING Operation procedures for operation guide PROCEDURES SECTION 6 PERFORMANCE Tests used for checking performance TESTS SECTION 7 STORAGE AND Cautions on storage and transportation TRANSPORTATION 1 3 SECTION 1 GENERAL SECTION 1 GENERAL Product Outline 2398 henceforth called this unit is a portable type monochrome LCD spectrum analyzer suited for signal analysis of radio equipment where the efficiency of frequency usage is increased and equipment is increasingly speeded and digitized The 2398 adopts the synthesizer local system and can cover all frequencies from 9kHz to 2 7GHz Excellent in basic performance such as distortion frequency level accuracy and easily operable by following the display of the soft key menu screen Excellent cost performance with rich options to cope with various applications Equipped with high accuracy calibration signals and an attenuator it can accurately calibrate switching of LOG LIN scales resolution bandwidth reference level etc Since
74. culate the Occupied Bandwidth by performing the following key operations MEAS MEASURE OBW When the calculation is complete the occupied bandwidth Fc is actually the occupied band center frequency appear at the left of the display x markers are set at both side of the occupied band to indicate the band endpoint frequencies REF HARPER 13 07 30 21 6 106 10 cB 0 B 40 04 MHz auto dB 730 26 Bm DOWN MEASURE I QP MODE MKR CNT OFF CNT RES 1kHz 40 00 MHz 20 00 MHZ 300 kHz 300 KHz 50 0 ms int ref X auto auto auto CENTER EH SWEEP Fig 5 27 OBW Function SECTION 5 OPERATING PROCEDURES 4 To change the ratio between the power contained in the occupied and the total power first find the OBW then use the numeric keys to set a new percentage The band markers will be adjusted automatically 5 On the screen TPWR is Total Power Change Value 1 10 T 0 GHz 2 F2 MEASURE VITA OBW Marker Counter use the marker counter function perform the following key operations When the marker counter function is selected the waveform update rate is slow because the count gate is needed for count resolution and accuracy MEAS CNT ON OFF The COUNT mode is toggled ON or OFF by pressing this key Perform the following key operations to select counter resolution MEAS
75. de o Normal signal POS PEAK o Random noise ss SAMPLE OR AVERAGE o Pulsed noise NORMAL Occupied frequency bandwidth SAMPLE for analog communication systems o Occupied frequency bandwidth or SAMPLE for digital communication systems When a detection mode is specified as one of the measurement methods make the measurement in the specified detection mode ABOUT THIS MANUAL 1 Composition of 2398 Manuals The 2398 Spectrum Analyzer manuals of the standard type are composed of the following two documents Operation Manual Vol 1 Composition of Manuals Programming Manual Vol 2 Provides information the 2398 outline preparation before use panel description operation procedure soft key menu and performance tests Programming Manual Provides information on RS 232C remote control GPIB remote control and sample programs 10 TABLE OF CONTENTS For Salely ceca ge mR MER 2 ABOUT THIS MANUAL rise d da Set a SECTION 1 GENERAL et MS M 1 1 Composition of 020222 mida 13 1 4 2398 Standard Configurations 1 5 1 6
76. de demodulated waveform By pressing this key the horizontal axis changes to the time axis The frequency is the center frequency To use AM demodulation function perform the following key operations This key toggles AM demodulation ON and OFF In AM scale the 2398 provides the five scales 25 96 DIV 20 96 DIV 10 DIV 5 96 DIV 2 5 DIV To select ON of the scale perform the following key operations 25 DIV Ax J AM ON AM FM SCALE 20 DIV 10 96 DIV 5 DIV 2 5 96 DIV FM Demodulation The FM demodulation function displays the frequency demodulated waveform By pressing this key the horizontal axis changes to the time axis The carrier frequency is the center frequency To use FM demodulation function perform the following key operations This key toggles FM demodulation ON and OFF In FM scale the 2398 provides the six scales 25 kHz DIV 20 kHz DIV 10 kHz DIV 5 kHz DIV 2 5 kHz DIV 1 kHz DIV To select ON of the scale perform the following key operations 25 kHz DIV aux po FM ON AM FM SCALE 20 kHz DIV 10 kHz DIV 5 kHz DIV 2 5 kHz DIV 1 kHz DIV 5 57 SECTION 5 OPERATING PROCEDURES Audio Monitor The 2398 has an intemal speaker and phone jack at the rear panel The AUDIO ON OFF is used to tum ON the intemal speaker The AUDIO LEVEL is used to control the audio level which can be adjusted by the st
77. e display area Peak Search Peak Track Delta Marker 1 Delta Marker Marker Track Marker to Center Marker to Reference 2 markers maximum 20 stored traces including user defined traces and test limits 10 operational states 2 Traces Type N Female 50 ohm nominal 150 kHz to 2 7 GHz VSWR lt 1 5 1 with 10 dB Input attenuation 20 Vdc 26 dBm with 30 dB Input attenuation lt 70 dBm with 10 dB attenuation 10 7 MHz Nominal 0 to 5V DC STANDARD HIGH STABILITY OPTION 2 ppm 0 1 ppm 1ppm year 0 1 SECTION 1 GENERAL 9 0 EXTERNAL REFERENCE Switchable between Intemal Extemal 9 1 Connector BNC female connector 9 2 Input Level 5 dBm to 15 dBm 9 3 Output Level 10 MHz 5 dBm nominal 10 0 IEEE 488 GPIB INTERFACE 10 1 Conforms to IEEE Standard 488 1987 10 2 Implemented Substes SH1 AH1 T6 L4 SR1 RL1 PPO DC1 CO LEO TEO 11 0 RS 232C INTERFACE 11 1 Type Null Modem Duplex Virtual Hardware Handshaking 11 2 Baud Rate 600 bps 1200 bps 2400 bps 4800 bps 9600 bps 19 2 kbps 11 3 Parity Check Odd Even or None 11 4 Data Length 7 bits 8 bits 11 5 Stop Bit 1 bit 2 bit 12 0 PRINTER 12 1 Driver PCL3 12 2 Connection Standard 25 pin female D Sub Parallel Printer 13 0 QUASI PEAK DETECTOR option SELECTED RECOMMENDED CHARGE DISCHARGE DISPLAY BANDWIDTH FREQUENCY RANGE TIME ms TIME ms TIME ms 9 kHz 150 kHz to 30 MHz 12 2096 160 2096 160 2096 120 kHz
78. e power meter until the power meter locks the sensitivity then just use the 10dB steps of the attenuator 11 Press PEAK MKR gt CF key to set the spectrum waveform peak to the center of the screen Press MKR REF LVL 12 Read the marker level 13 Calculate Reference level accuracy Reference level accuracy Marker level value Power meter reference value SECTION 6 PERFORMANCE TESTS Reference Marker level Step Attemuator level dBm value dBm value dB 0 10 20 30 40 50 60 70 80 SECTION 6 PERFORMANCE TESTS 6 3 10 Average noise level The intemal noise of the spectrum analyzer is measured with this test 6 3 10 1 Specification Average noise level lt 80 dBm frequency range 50 kHz 100 kHz lt 100 dBm frequency range 100 kHz 1 MHz lt 105 dBm frequency range 1 MHz 2 7 GHz 6 3 10 2 Test Instruments 502 terminator HP 909F 6 3 10 3 Setup START 1 0MHz STOP 1 0GHz 50 ohm Termination Hp 909F lt Average Noise level gt 6 3 10 4 Procedure Step Procedure 1 Press PRESET key 2 Press ALL CAL softkey 3 Set the 2398 as shown below 10 5 20 2 Renee
79. e replacement can only be made by IFR contact the nearest IFR representative when replacement is required Note The battery life is about 7years Early battery replacement is recommended Do not throw the battery away but dispose of it according to your county s requirements 5 This equipment stores data and programs using PCMCIA I Memory Card Data and programs may be lost due to improper use or failure IFR therefore recommends that you back up the memory IFR CANNOT COMPENSATE FOR ANY MEMORY LOSS Please pay careful attention to the following points Do not remove the memory card from equipment being accessed o Isolate the card from static electricity o The back up battery in the SRAM memory card has a limited life replace the battery periodically Product Damage Precaution Place related Warninge AN For Safety TC CAUTION GANZ 6 Use Proper Power Source Do not operate this product from a power source that applies more than the voltage specified Provide Proper Ventilation To prevent product overheating provide proper ventilation Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Do Not Attempt To Operate If Protection May Be Impaired If the instrument appears damaged or operates abnormally protection may be impaired Do not attempt to opera
80. ed to each of those peaks by executing Next Peak Search consecutively LV mum z 39 882 MHz 10 0 dBm 106 10 dB 27 19dBm 19 35 30 MKR gt CF MKR gt REF LVL oA do PEK j i 3 RIGHT OFF MKR NOS 102 1052 50 005 auto auto auto RBH 40 000 1 000 MHz _ CENTER SPAN SPAN Fig 5 14 Next Peak Search SECTION 5 OPERATING PROCEDURES Peak Left Search Peak Right Search LEFT Search PEAK RIGHT Search detect the adjacent peak level to the right or left of the current marker and move the marker to that point To execute PEAK LEFT Search and PEAK RIGHT Search perform the following key operations PEAK PEAK RIGHT PEAK LEFT The adjacent peak level to the right or left can be detected and the marker moved to that peak by executing PEAK LEFT or PEAK RIGHT consecutively LVL SCALE 13 45 36 10 0 dim 105 10 0 39 882 MHz auto 27 12dBm MKR gt MKR gt REF LVL E NEXT L A ib ii i PME RM T LEFT RIGHT OFF MKR NOS 40 000 MHz 1 000 MHz 102 102 50 0ns OFF int ref _ t auto CENTER SPAN Fig 5 15 Next Peak Search Left Right Marker Track When the Marker Track is set to ON the maximum
81. eep has been completed 7 Press MEAS dB DOWN gt X dB DOWN softkey and set it to dB or 6 dB 8 Press TRIG CONT softkey 9 Change RBW filter and measure 10 Repeat step 5 to 9 for the frequencies other then the resolution bandwidth 3MHz and frequency span 10MHz according to the combinations of resolution bandwidth and frequency span shown in the follow table 11 Calculate RBW filter accuracy RBW Measured Value RBW Accuracy Marker 4 3dB bandwidth Minimum Measure Maximum 240 Hz 360 Hz 800 Hz 1 2 kHz 2 4 kHz 3 6 kHz 7 2 kHz 10 8 kHz 6 dB BW 8 0 kHz 12 0 kHz 24 kHz 36 kHz 80 kHz 120 kHz 96 kHz 144 kHz 6 dB BW 240 kHz 360 kHz 800 kHz 1 2 MHz 2 4 MHz 6 MHz Accuracy Remark SECTION 6 PERFORMANCE TESTS 6 3 4 4 2 RBW Selectivity Step Procedure 1 Press PRESET key 2 Press ALL CAL softkey 3 Set the 2398 as shown below Center frequency 100MHz Span 100 2 Reference level 10dBm ATT Auto RBW 3MHz Scale 10dB Div Sweep time Auto 4 Set the Synthesized signal generator MG3633A as shown below Frequency 100MHz Power 10 dBm 5 Press PEAK MKR gt REF key and match the peak of the signal trace to the stop line REF LEVEL on the screen 6 Press TRIG SINGLE key to execute a single sweep then check that the single sweep has been completed 7 Press MEAS dB DOWN gt X dB DOWN k
82. efore Power on The 2398 operates normally when it is connected to 100 to 240VAC automatic voltage selected automatically 47 to 63Hz AC power supply To prevent the following take the necessary procedures described on the following pages before power is supplied Accidental electric shock Damage caused by abnormal voltage Ground current problems To protect the operator the following WARNING and CAUTION notices are attached to the rear panel of the 2398 WARNING CAUTION TO AVOID ELECTRIC SHOCK FOR CONTINUED FIRE PROTECTION THE PROTECTIVE GROUNDING CONDUCTOR REPLACE ONLY WITH SPECIFIED MUST BE CONNECTED TO GROUND TYPE AND RATED FUSE DO NOT REMOVE COVERS REFER SERVICING TO QUALIFIED PERSONNEL Disassembly adjustment maintenance or other access inside this instrument is to be performed qualified personnel only Maintenance of this instrument should be performed only by IFR trained service personnel who are familiar with the risk involved of fire and electric shock Potentially lethal voltages existing inside this instrument if contacted accidentally may result in personal injury or death or in the possibility of damage to precision components Always follow the instructions on the following pages 2 6 SECTION 2 PREPARATIONS BEFORE USE Protective Grounding Grounding with frame ground FG terminal When there is no grounded AC power supply outlet the protect
83. elta marker value to the center frequency step size MKR gt SPAN Sets the delta marker value to the span In time domain only MKR gt REF LVL is valid Setting Parameters Using Marker Values Sets the current marker frequency or level to the center frequency or the reference level To execute the MARKER Shift perform the following key operations MKR gt CF MKR gt REF LVL MKR gt CF STEP MKR DELTA gt CF STEP Sets the marker frequency to the center frequency step size resolution determined by up down keys MKR gt CF STEP Although this action does not cause any change to appear on the screen when the center frequency is changed with up down keys the center frequency is changed with the marker frequency as the step size This facilitates observation of harmonics 2 gt SPAN In the delta marker mode this operation sets the delta marker mode reference marker frequency and current marker frequency to the start frequency and stop frequency respectively 5 22 SECTION 5 OPERATING PROCEDURES T ZOOM IN ZOOM OUT This funtion is useable when the current marker frequency is set to the center frequency The MKR ZOOM IN function is to change the current span to half the current span The MKR ZOOM OUT function changes the current span to two times the current span DL ERU 07 16 14 20 0 dm 106 10dB 10 40 0000 MHz manual
84. ep UP DOWN key or scroll key The audio level has 8 steps 0 7 The default value is 3 The SQUELCH key is used for the squelch function It has 256 levels which can be adjusted by step UP DOWN key and scroll key The default value is 127 TRACKING GENERATOR option The 2398 has an optional Tracking Generator To set up the Tracking Generator perform the following key operation gt TRACKER ON OFF The TRACKER ON OFF is used to tum ON the Tracking Generator gt OUTPUT LEVEL The OUTPUT LEVEL is used to control the power level which can adjusted by the step UP DOWN key scroll key or numeric key The power level is adjustable 0 to 70dBm in 0 1dB step gt NORMAL ON OFF Using the normalization function allows the user to compensate for hardware uncertainties therefore making the measurement of the unit under test more accurate H AUTO FRQ CAL The AUTO FRQ CAL is used to compensate the center frequency of TG for the center frequency of system auto maticlly MANUAL FRQ CAL The MANUAL FRQ CAL is used to compensate the center frequency of TG for the center frequency of system UP DOWN key scroll key with the step L RETURN 5 58 SECTION 5 OPERATING PROCEDURES LIMIT LINE FUNCTIONS The LMIT key is the header key for using the limit line function 9kHz 2 7 GHz spectrum analyzer
85. ep Gate Output BNC Female Output Extemal Video output BNC Female Output din Reference BNC Female Input IN 10MHz Oscillator IN OUT Output OUT 10MHz IF Output BNC Female Output 10 7 MHz IEEE 488 GPIB 24 Pin Champ IN OUT See Pin Out Table 2 25 Pin D Ounce Screen Print Data sub Female um See Pin Out Table 4 9 Pin D sub male PRINTER RS 232C IN OUT See Pin Out Table 3 Table 1 I O Connectors 3 5 SECTION 3 PANEL DESCRIPTION IEEE 488 GPIB CONNECTOR The IEEE 488 GPIB Connector complies with ANSI IEEE Standard 488 2 1987 PIN NUMBER SIGNAL PIN NUMBER SIGNAL DIO 1 13 DIO 5 DIO 2 14 DIO 6 DIO 3 15 DIO 7 DIO 4 16 DIO 8 EQI 17 REN DAV 18 Ground NRFD 19 Ground NDAC 20 Ground 2 3 4 5 6 7 8 9 IFC 21 Ground IL SRQ 22 Ground I B ATN 23 Ground N 3 6 Ground 24 Ground Table 2 Pin Out for IEEE 488 GPIB Connector 12 ETEL ES JU Eg DERE P SEA fA DOA IS ER TA DOR S CER Ei Dana EN 24 13 Figure 3 IEEE 488 GPIB Connector SECTION 3 PANEL DESCRIPTION RS 232C CONNECTOR PIN NUMBER SIGNAL m RTS
86. eter and then display value 0 dBm If display value is not 0 dBm tum Cal Connect the test equipment as shown above Adjust Signal generator output level set to 10 dBm Set up the synthesized signal generator as shown below 6 30 SECTION 6 PERFORMANCE TESTS Frequency 100 MHz Power 10 dBm 7 Read the power meter display and adjust signal generator output level to 10dBm 8 Press PRESET key 9 Press ALL CAL softkey 10 Set up the 2398 as shown below Center frequency 100 2 Reference level 10 dBm Span 200kHz Couple Auto 11 Press PEAK MKR gt CF key to set the waveform peak to the center of the screen 12 Change Signal generator output frequency and adjust the signal generator to maintain the level on the power meter 13 Calculate Frequency response Power meter value display Marker peak value Signal Generator Frequency Power Meter dBm Marker peak value dBm Remark 100 MHz 300 MHz 500 MHz 1000 MHz 1500 MHz 2000 MHz SECTION 6 PERFORMANCE TESTS 6 3 9 Reference level accuracy Here the absolute amplitude level at only 100M is tested Confirm the level accuracy with a signal from the Signal Generator calibrated by a standard power meter 6 32 6 3 9 1 Specification Reference level accuracy 6 3 9 2 Test Instruments Synthesized signal generato Power Meter
87. ey and set it to 60 dB Press TRIG CONT key Change the RBW filter and measure 9 Repeat steps 5 to 8 for the other resolution bandwidth filters and frequency spans according to the combinations of resolution bandwidth and frequency span shown in the follow table 10 For3 dB bandwidth used the value table item 6 3 4 4 1 11 Calculate RBW Selectivity 60 dB Bandwidth 3 dB Bandwidth or 6 dB Bandwidth Selectivity SECTION 6 PERFORMANCE TESTS Selectivity 6dB BW 6 3 4 4 3 RBW Switching error Step Procedure 6dB BW l Press PRESET key 2 Press ALL CAL softkey 3 Set up the 2398 as shown below Center frequency 100 MHz Span 20kHz Reference level 10dBm ATT Auto RBW 30 kHz Scale 10dB Div Sweep time Auto 4 Set the Synthesized signal generator MG3633A as shown below Frequency 100MHz Power 15dBm SECTION 6 PERFORMANCE TESTS 5 Press PEAK MKR gt CF key and MKR gt REF to move the signal peak to the center and the top of the screen 6 Press MRK MARKER DELTA key that in order to set to the marker to A marker 7 Set RBW and SPAN as shown in the table and measure the amplitude deviation error of each RBW by following step 8 and 9 below 8 Press PEAK key to conduct peak search and move the current marker to the peak point of the
88. frequency response data is corrected by built in calibration data allowing high accuracy level measurement for a wide range As the switching of waveforms between frequency domain and time domain can be done by a touch and two waveforms are simultaneously displayed signal analysis of both domains can be done efficiently This unit provides the MEASURE function which can perform measurement of various appli cations without requiring the intervention of extemal controllers Therefore the performance evaluation of radio equipment can be easily done in terms of frequency noise occupied frequency bandwidth etc Application This unit is useful for the production building and maintenance of electronic equipment and devices for the following o AM FM radio equipment Digital cellular telephone cordless telephone Satellite broadcasting CATV and TV equipment Small capacity microwave equipment SECTION 1 GENERAL 2398 Standard Configurations 2398 9kHz To 2 7 GHz SPECTRUM Analyzer 2398 1 2398 w 0 1 PPM HSTB QUASI PEAK DETECT FILTERS IEEE 488 GPIB PCMCIA CARD SLOT 2398 2 2398 1 WTRACKING GENERATOR 2398 2398 1 with AC DC POWER SUPPLY 2398 4 2398 1 w TRACKING GEN AC DC POWER SUPPLY The 2398 may be special ordered with any of the following options AC2565 Option1 TRACKING GENERATOR AC2566 Option 2 HIGH STABILITY TIME BASE HSTB AC2567 Option 3 QUASI PEAK DETECTOR AC2568 Option 4 AC DC PO
89. hamber temperature and the 2398 intemal temperature restabilizes measure the frequency by using the counter 6 Calculate the stability by using the following equation counter reading at 40 C counter reading at 25 C Frequency stability counter reading at 25 C 6 7 SECTION 6 PERFORMANCE TESTS 6 3 2 Center frequency readout accuracy Add the known frequency which serves as the center frequency reference to the 2398 as shown in the figure below and set CF same value as the known reference frequency and SPAN At this time check that the difference between the reading of the marker reading of the marker readout frequency thick arrow in the figure of the center frequency peak point and the CF set value is lt span X span accuracy 0 5 RBW As shown in the figure the Synthesized Signal Generator uses the signal source phaselocked with the same accuracy as 10ME reference oscillator of the 2398 6 3 2 1 Specification Center frequency accuracy t Indicated frequency reference frequency accuracy span X span accuracy 0 5 x RBW after calibration 6 3 2 2 Test Instruments Synthesized Signal Generator MG3633A Anritsu Frequency counter HP5350B Power combiner HP11636A RF Cable 1 2 3 N male N male Adapter N female N female BNC Cable BNC male BNC male 6 3 2 3 Setup H Vent
90. he screen 5 Press TRIG SINGLE key to execute a single sweep then check that the single sweep has been completed 6 Press MKR MARKER DELTA that in order to set to the marker to marker Setthe Amarker to frequency of 10 kHz and read marker value amplitude 8 Calculate Sideband noise Sideband noise Measured Value marker value 10log RBW 1Hz Example Offset frequency Measured value Sideband Noise 10 kHz 65dBc 95dBc Hz 6 21 SECTION 6 PERFORMANCE TESTS 6 3 6 Frequency measurement accuracy 6 22 To measure frequency counter accuracy set the signal generator and marker point to a position at least 20 dB higher than the noise or adjacent interference signal to operate the built in counter and test the frequency measurement accuracy using the Frequency Counter COUNT ON mode 6 3 6 1 Specification Accuracy Readout frequency X reference oscillator accuracy 1 LSB Resolution 1Hz 10Hz 100Hz 1kk Sensitivity 70 dBm min reference oscillator accuracy lt 5ppm 6 3 6 2 Test Instruments Synthesized signal generator MG3633A or equivalent Frequency counter HP5350B Power Splitter HP11636A RF cable 1 2 3 N male N male BNC cable BNC male BNC male 6 3 6 3 Setup SPECTRUM ANALYZER VA
91. input section is switched 6 3 12 1 Specification Input attenuator switching eror 0 5dB 9kHz 2 7 GHz total 1dB maximum 6 3 12 2 Test Instruments Synthesized signal generator MG3633A Step Attenuator HP8496B HP8494B Power Meter HP437B Power Sensor HP8481A HP8481D o RF Cable 1 2 N male N male RF Splitter 6 3 12 3 Setup Synthesized Signal Genertor MG3633A Attenuator RF Splitter RF Cable 2 Hp8496B Hp8494B RF Cable 1 Power Sensor Power Meter Hp437B lt Input Attenuator Switching Error gt 6 3 12 4 Procedure 6 3 12 4 1 Power meter calibration and Signal generator Calibration Step Procedure 1 Connect the Power Meter HP437B to Power sensor HP84814A 2 Connect the Power sensor to Power Meter input port 3 Push Power REF button of Power Meter and then display value 0 dBm 4 If display value is not 0 dBm tum Cal 6 39 SECTION 6 PERFORMANCE Step Procedure 1 Press PRESET key 2 Press ALL CAL 3 Set the 2398 as shown below 10 Center frequency 100 MHz Span 100 kHz Reference level 50 dBm RBW 3kHz VBW 30Hz Sweep time Auto Set the Signal generator MG3633A as show below
92. ive frame ground FG terminal on the rear panel must be connected directly to ground potential If power is applied without protective grounding there is a risk of accidental electric shock The protective frame ground FG terminal on the rear panel or the ground pin of the supplied power cord must be connected to ground potential before power is supplied to the 2398 RS 232C z m s W27 3 SS o ww 2 7 SECTION 2 PREPARATIONS BEFORE USE Replacing fuse f the fuses are replaced while power is supplied there is a serious risk of electric shock Before replacing the fuses set the power switch to OFF and remove the power cord from the power outlet If power is supplied without protective grounding there is a risk of accidental electric shock In addition if the AC power supply voltage is excessive there is a risk of the intemal circuits of the 2398 being damaged by the abnormal voltage Before supplying power again after changing the fuses check that the protective grounding described previously is still connected and check that the AC power supply voltage is suitable Then set the power switch to ON When there are no supplied spare fuses the replacement fuses must have the same voltage and current rating as specified If the re
93. ker displays the absolute amplitude level REF LVL SCALE 27 9 dBm LOG 10 dB 0 dB manual 10 54 58 40 0000 MHz 30 90 dBm ee MARKER E IM alta MARKER 1 4 m CEA SEARCH 40 0000 MHz 10 kHz 10 kHz 50 0 ms 500 0 kHz int ref _ auto auto auto CENTER RBW VBW SWEEP Fig 5 11 Normal Marker SECTION 5 OPERATING PROCEDURES Delta MARKER The current marker position when the delta marker is set to is fixed as the reference marker reference point Then as the current marker is moved the reference marker and the Current marker frequency time and level differences are displayed digitally as delta marker values In the delta marker mode the reference marker is indicated by V To set the delta marker to ON perform the following key operation MARKER ZDELTA Press the DELTA MARKER key in the delta marker mode The reference marker moves to the current marker position and switches to the delta marker mode with that as the reference point LVL SCALE Z 10 55 18 27 9 dBm LOG 10 dB 0 dB 0 Hz manual 0 00 dB MARKER i i NORMAL Adelta MARKER 1 4 o1 P illii i i i ew i E i i E i SEARCH 40 0000 MHz Mie 10 kHz 50 0 ms 500 0 kHz int re _ auto auto auto CENTER SPA RBW VBW SWEEP
94. level point of the waveform is always moved to the center position of the horizontal axis To use Marker Track perform the following key operations PEAK ON OFF The Marker Track is changed by key pressing the softkey SECTION 5 OPERATING PROCEDURES Marker Noise When the Marker Noise is set to ON the noise power at the current marker point of the waveform is displayed The noise power is calculated using the equivalent noise bandwidth of current RBW The detection mode is changed to SAMPLE mode To use Marker Noise perform the following key operations 1 Set the delta marker at canier signal 2 Set the normal marker at noise level of the offset frequency PEAK gt NOS ON OFF The Marker Noise is changed by pressing the soft key 5 21 SECTION 5 OPERATING PROCEDURES SETTING PARAMETERS USING MARKER VALUES The marker value can be set as the parameter value of the observation frequency reference level and so on This facilitates the observation of the desired waveform To set parameters using the marker value the following settings are possible MKR gt CF Sets the marker value to the center frequency MKR gt REF LVL Sets the marker value to the reference level MKR gt CF STEP Sets the marker value to the center frequency step size MKR gt CF Sets the delta marker value to the center frequency value gt STEP Sets the d
95. ly voltage fluctuation and should be free of noise vibration dust humidity etc 6 3 1 Reference oscillator frequency stability Frequency stability is tested by measuring the 10MHz reference oscillator Stability is determined by measuring frequency variation at ambient temperatures of 0 and 407 6 3 1 1 Specification Reference Oscillator Frequency 10 MHz Aging rate lt 1 106 year After 24 hour wam up at 25 C 5C Temperature stability lt 2 10 6 at 0 and 40 referred to the frequency measured at 25 C 6 3 1 2 Test Instruments Frequency counter HP5350B 6 3 1 3 Setup CAUTIONS RUNE WARNING Frequency Counter Hp5350B Reference Oscillator Frequency Stability Test gt 6 6 SECTION 6 PERFORMANCE TESTS 6 3 1 4 Procedure 6 3 1 4 1 Temperature stability Test condition Test this performance in a vibration free variable temperature chamber Step Procedure 1 Set up the 2398 in a constant temperature chamber at 25 C 2 Set the LINE and Power switches on the 2398 to ON and wait until the 2398 intemal temperature stabilizes approx 1 5 hours after the chamber temperature stabilizes 3 When the intemal temperature stabilizes measure the frequency by using the counter with 0 1Hz resolution 4 Change the chamber temperature to 40 C 5 When the c
96. mal marker to peak of the intermodulation product signal 11 To calculate the intermodulation performance and the 7 marker value plus 20dB 12 Example Z marker 60dB Intermodulation performance 60 20 80dB 6 45 SECTION 6 PERFORMANCE TESTS 6 3 15 Spurious Response This test measures spurious frequency levels in the 2398 The RF Input is terminated and 0 dB Input attenuation is selected 6 3 15 1 Specification lt 85 dBm Input Terminated Input Att 0 dB 6 3 15 2 Test Instruments 50 ohm Termination HP 909A 6 3 15 3 Setup eee 5 2 SPAN 5MHz Hp909A 50 ohm Terminator Residual Response 6 3 15 4 Procedure Step Procedure 1 Press PRESET key 2 Press ALL CAL softkey 3 Setup the 2398 as shown below Center frequency 1300 MHz Span full Reference level 40dBm AIT RBW lkHz VBW 1 2 Sweep Time Detector Mode POS Peak 6 46 SECTION 6 PERFORMANCE TESTS 4 Press DISP DISPLAY LN ON gt DISPLAY LINE key and rotate knob to 85 dBm 5 Press TRIG SINGLE key Wait for completion of the sweep 6 Any residual responses must be below the display line 7 Press MKR PEAK
97. me rea mrt FM nnn reete tee ve meinen TRACKING GENERATOR option e LIMIT LINE FUNCTIONS e WINDOW FUNCTIONS e PRESET FUNCTIONS gt M ota 2856566 tco All Cali ttt tite delete nettes Cal Mode eee hel E ee M tet tt Cal Signal Auto Cal ON OFF SECTION 6 PERFORMANCE TESTS 14 Requirement for Performance Tests Instruments Required for Performance Tests Peifomnance Tests ii ast Reference oscillator frequency stability Center frequency readout Frequency span readout accuracy Resolution bandwidth RBW and selectivity switching emor nolSe este i o Re e s Frequency measurement aCCUrIaCy eene 6 22 Amplitude display linearity D 6 24 Frequency res DONSC siege etes cette bebe d tor aa 6 30 Reference level 6 32 Average noise level 6 35 Second harmonic distortion s 6 37 Input attenuator switching emor 2222222011 2 6 39 Residual FM E br E ew 6 41 3rd Order Intermodulation 6 43 RESPONSE osos tton rante 6 46 Local Oscillator Emission 6 48
98. mplitude Scale In log scale the 2398 provides the four scales 10 dB 5 dB 2dB 1dB In linear scale the 2398 uses the Full Scale To select one of the scales perform the following key operations Log Detector Mode SCALE 10dB DIV RETURN 5dB DIV 2dB DIV 1dB DIV Reference level offset AMPL REFLVL OFFSET Reference level offset function adds an offset value to amplitude readouts e g reference level and marker amplitude This function can be useful to account for gains or losses in device connected to the spectrum analyzer Input range of offset is 10 dB 10 dB and then only dB units are valid When offset value is other than 0 dB is displayed on the left edge of the screen SECTION 5 OPERATING PROCEDURES Setting Input Attenuation Perform the following key operation to set the input attenuator level AMPL gt AITEN AUTO MNL Numeric key Step key To A Scroll key The ATTEN mode AUTO or MNL is changed by pressing the ATTEN key In ATTEN MNL manual mode the step size can set by the numeric keys step key and scroll key If ATTEN AUTO is selected the input attenuator will be coupled by the current reference level automatically SCALE 11 02 46 27 9 dim LOG 10 dB 0 manual REF LEVEL MEN ME ee NE EN ae AN LOG Fee
99. nput attenuator value in the AUTO mode is controlled so that high accuracy measurements can be made without being influenced by gain compression and the noise level can be reduced However when you want to measure a low level signal by raising the sensitivity set the input attenutor manually as shown in the table below Reference Level Range Attenuation Manual Level 30dBm to 60dBm 50 30dBm to 70dBm 40 20dBm to 80dBm 30 10dBm to 90dBm 20 OdBm to 100dBm 10 10dBm to 110dBm 0 A small input attenuator value can be used when the RF input level is 10dBm or less 5 41 SECTION 5 OPERATING PROCEDURES CONFIGURATION system parameters of the 2398 be set depending on the user objective The CONFIG hard key is the header key related to set system configuration 9kHz 2 7 GHz spectrum analyzer FUNCTION n FREI 1J 2J 6 9 9 2 ODE Jefe g als 1212 85 5 J 3 m mi i 5 4 Hard Copy This key is used for hard copy using the printer In order to print the current display perform the following key operations CONFIG HARDCOPY Printer type The 2398 supports the following HP Laser J et Printer
100. nput second by using the scroll or the step key 0 59 lL ENTER 5 43 SECTION 5 OPERATING PROCEDURES 10M REF INT EXT The system reference oscillator 10MHz is selected by this key This key toggles between INT or EXT Status CONFIG MORE 10M REF INT EXT When INT is selected the intemal reference oscillator is selected When EXT is selected the frequency accuracy is defined by the extemal reference oscillator connected to the 10MHz reference frequency signal input terminal of the analyzer rear panel BEEP ON OFF Menu beep sound is selected by this key This key toggles ON or OFF status CONFIG MORE 5 ON OFF Version information When this key F5 is pressed display software information 5 44 SECTION 5 OPERATING PROCEDURES PCMCIA Memory Card Function option The memory card option is selected Memory cards are used for backing up the current setup configuration waveform data and mask data bitmap BMP files Memory Card Requirements 1 Corresponds to the PCMCIA Release 2 0 Type 2 The following memory types only are available SRAM type 3 Format type MS DOS Format 4 Memory size 64kB 128kB 256kB 512kB 1MB 2MB Memory Card Initialization New unused memory cards should always be initialized before use 1 Tum the write protect off of the card to be initialized C
101. nu functions and its system hierarchy are described using a menu tree Matters to be noted about the tree are shown below 1 Panel key indicates a hard key on the panel 2 SOFT MENU 1 keys are displayed on the screen when the panel key is pressed SOFT MENU 2 indicates another menu below the SOFT MENU 1 3 When the retum key is pressed for SOFT MENU 2 keys the SOFT MENU 1 is retumed 4 3 SECTION 4 MENU TREE Menu Tree Panel Key Soft Menu 1 Soft Menu 2 FREQ CENTER START STOP CF STEP AUTO MNL SPAN SPAN WIDTH FULL SPAN ZERO SPAN LAST SPAN ZOOM IN ZOOM OUT 10dB DIV 5dB DIV REF LEVEL 2dB DIV ATTEN AUTO MNL 1dB DIV LOG RETURN LINEAR SCALE UNIT REF LVL OFFSET 4 4 SECTION 4 MENU TREE Panel Key Soft Menu 1 Soft Menu 2 OFF MKR gt PEAK MARKER NORMAL MARKER DELTA MARKER 1 4 PEAK SEARCH BLANK gt CF REF LVL gt CF STEP ZOOM IN Normal marker status MKR ZOOM OUT AMKR gt CF AMKR CF STEP AMKR gt SPAN MKR ZOOM IN Delta marker status MKR ZOOM OUT gt CF MKR gt REF LVL PEAK LEFT PEAK RIGHT MKR TRK ON OFF NOISE ON OFF 4 5 SECTION 4 MENU TREE Panel
102. or cause deformation or discoloration 7 3 SECTION 7 STORAGE AND TRANSPORTAION Storage Precautions This paragraph describes the precautions to take for long term storage of the 2398 SPECTRUM ANALYZER Precautions before storage 1 Before storage wipe dust finger marks and other dirt off of the 2398 2 Avoid storing the 2398 where 1 It may be exposed to direct sunlight or high dust levels 2 It may be exposed to high humidity 3 It may be exposed to active gases 4 It may be exposed to extreme temperatures gt 50 or high humidity 90 Recommended storage precautions The recommended storage conditions are as follows o Temperature sss 0 to 30C CHUN 40 to 80 o Stable temperature and humidity over 24 hour period 7 4 SECTION 7 STORAGE AND TRANSPORTAION Repacking and Transportation The following precautions should be taken if the 2398 must be retumed to IFR for servicing Repacking Use the original packing meterials If the 2398 is packed in other materials observe the following packing procedure 1 Wrap the 2398 in a plastic sheet or similar material 2 Use a wooden box or aluminum case which allows shock absorbent material to be inserted on all sides of the equipment 3 Use enough shock absorbent material to protect the 2398 from shock during transportation and to prevent it from moving in
103. placement fuses are not of the same type they may not fit correctly there may be a faulty connection or the time taken for the fuses to blow may be too long f the voltage and current rating of the fuses is incorrect the fuses may not blow causing damage to the equipment 2 8 SECTION 2 PREPARATIONS BEFORE USE The fuses are inserted in the fuse holder and must be replaced if they blow If the fuses must be replaced locate and remedy the cause before replacing the blown fuses The 2398 with standard accessories has two spare T3 15A fuses After performing the safety procedures described on the preceding page replace the fuses according to the following procedure Step Procedure 1 Set the front panel Power switch to STBY and the rear panel Line switch to OFF Then remove the power cord from the power supply outlet 2 Pull out the fuse holder at the rear panel with pressing the fuse holder hook 3 Remove the fuse from the fuse cap and replace it with a spare fuse The direction does not matter 4 Put the fuse cap with fuse into the fuse holder and insert it by pushing inward 2 9 SECTION 2 PREPARATIONS BEFORE USE Precaution for handling memory card option When new memory card is used to save file format it beforehand to 5 DOS When saving data to a memory card confirm that the write protect switch of the card is set to the NOT PROTECTED side and then install it in the 2398 Ins
104. r Attenuator value dB Amarker level 6 28 SECTION 6 PERFORMANCE TESTS LINEAR display Linearity full scale ATT Setting dB Value dB reference 6 29 SECTION 6 PERFORMANCE TESTS 6 3 8 Frequency response Generally when one or more signals with a different frequency but the same amplitude are applied to the unit the spectrum analyzer displays the same amplitude for each signal on the screen 6 3 8 1 Specification Frequency response lt lt 1dB 9kHz 10MHz lt 1 5dB 10MHz 2 7 GHz att 10dB 6 3 8 2 Test Instruments Synthesized signal generator MG3633A Power Meter HP437B Power Sensor HP8481A Power splitter HP11636A Adapter N female female RF cable 1 2 3 N male N male 6 3 8 2 Setup 1 i ALII CF 100MHz SPAN 200KHz Synthesized Signal Generator MG3633A Power Combiner Adapter iT RF Cable2 RF Cable1 Hp11636A RF Cable3 Power Meter Power Sensor Hp437B 1 Hp8481A Frequency Response 6 3 8 4 Procedure 6 3 8 4 1 Power meter calibration and measurement procedure Step Procedure Connect the Power Meter HP437B to Power sensor HP8481A Connect the Power sensor to Power Meter input port Push Power REF button of Power M
105. re the trigger point and the waveform beyond the right end of the screen With the 2398 a waveform before or after the end of the display the trigger point can be displayed by changing the delay time NOTE TRIGGER DELAY WORKS IN 0 SPAN MODE ONLY To set the delay time perform the following key operations TRIG gt TRIG DELAY The delay time is set using numeric keys the scroll key and the step up down key in zero span mode A minus value of delay time means the Pre Trigger mode is used A plus value of the delay time means the Post Trigger mode is used 15 52 41 10 2 LOG 10 dB 0 dB EN auto ON CONTINUOUS EN SINGLE TRIG SOURCE TRIG FLT LPF gt 7 TRIG DELAY N X n NEC m 14 40 000 MHz OHz 10 kHz 10 kHz 50 0 ms int ref auto auto auto ENTE msa Fig 5 22 Trigger Function SECTION 5 OPERATING PROCEDURES COUPLED FUNCTIONS The four functions of RBW VBW Sweep Time and Input Attenuation are initially set to AUTO so the 2398 can automatically select the optimum setting There are two hard keys related to the Coupled function CPL and AMPL IkHz 2 7GHz spectrum analyzer FUNCTION CO CD Gee 2 s Gl 2 2
106. red Accuracy 100 MHz 100 MHz 1 2 lt Readout Frequency 10 Hz Reference Oscillator Accuracy 100 Hz 1000 2 100 2 70dBm 100 2 1000 2 6 23 SECTION 6 PERFORMANCE TESTS 6 3 7 Amplitude display linearity 6 24 This test determines the error per vertical graduation for the LOG display and LINEAR display Apply the correct level signal to the RF Input via an extemal attenuator and measure the error from the attenuation of the attenuator and the A marker reading at the trace waveform peak 6 3 7 1 Specification Amplitude display linearity After automatic calibration 106 lt 1 5dB for10 div over 8 divisions lt 1 5 dB for5 dB div over 8 divisions LINEAR lt 10 96 of Ref Level over 8 divisions 6 3 7 2 Test Instruments Synthesized Signal generator Attenuator RF cable 1 2 3 Power meter Power splitter 6 3 7 3 Setup E HI 100MHz SPAN 10KHz Synthesized Signal Generator MG3633A HP 8494 HP 8496 N male N male HP437B RBW lt 3 kHz RBW lt 3 kHz lt 0 5dB 1 2 dB div over 8 divisions RBW lt kHz External 10MHz Reference MG3633A Attenuator RF Cable1 Hp8494 Hp8496 L
107. reference marker X dB LEFT Place a marker at the point to the left of the reference marker that is X dB down X dB RIGHT Places a marker at the point of the right of the reference marker that is X dB down FORMAT REL ABSL ABSR Select the marker display format REL Display Delta Marker the default state ABSL Display Left Marker value ABSR Display Right Marker value gt STOP X dB Down Measurement is executed only once after this key is pressed gt CONTINE When this key is pressed X dB Down is executed continuously L gt X dB END Stop measuring X dB Down 5 51 SECTION 5 OPERATING PROCEDURES Occupied power Bandwidth measurement Locate the occupied bandwidth of the signal being displayed the screen The results are shown in the marker display area for the occupied bandwidth OBW the occupied band carrier frequency Fc and the band center frequency The 2398 has an OBW function that can be calculated from the measurement data displayed on the screen It works by finding the frequency band that contains a specified percentage of the total power The default value is 10 and measurement range between 10 and 99 8 can be specified OBW Measurement Procedure 1 Set the center frequency amp normal marker to the known carrier frequency and set the frequency span resolution bandwidth RBW and sweep time to AUTO 2 Set the detection mode to SAMPLE detector 3 Cal
108. signal spectrum 9 Read the marker level value RBW frequency span Deviation error 1 kHz 10 kHz 3 kHz 20 kHz 0 0 9 kHz 50 kHz 10 kHz 50 kHz 30 kHz 150 kHz Reference 100 kHz 500 kHz 120 kHz 500 kHz 300 kHz 1 5 MHz 1 MHz 5 MHz 3 MHz 15 MHz SECTION 6 PERFORMANCE TESTS 6 3 5 Sideband Noise Phase noise Sideband noise is the measure of the noise present on the local oscillator signal measured at an offset from the frequency It is important to use a signal source with 10dB or better sideband noise performance than spectrum analyzer 6 3 5 1 Specification sideband noise phase noise lt 90 dBc Hz 10 kHz at offset frequency 6 3 5 2 Test Instruments Synthesized signal generator 6 3 5 3 Setup o EA 85850 gt 88 ga C 55 40MHz SPAN 100MHz Ko Synthesized Signal Generator MG3633A Sideband Noiser gt 6 20 SECTION 6 PERFORMANCE TESTS 6 3 5 4 Procedure Step Procedure 1 Press PRESET key 2 Press ALL CAL softkey 3 Set up the 2398 as shown below Center frequency 2700 MHz Span 100 kHz Reference level OdBm ATT Auto RBW 1kHz VBW 30Hz Scale 10dB div Sweep time Auto 4 Press PEAK MKR gt CF key and MKR gt REF to move the signal spectrum peak to the center and the top of t
109. st state values All CAL Pressing the ALL CAL key does self calibration routine for the system CAL Mode When the CAL MODE is pressed a soft menu related to the calibration routines are displayed Each calibration menu does the hardware compensation routine to verify the unit operates precisely regardless of any hardware drift YIG CAL Recalibrates the YIG tuning curve values RBW CAL Compensates the RBW center frequency for drift and gain error and calculates new correction factors e LEVEL CAL Compensates gain error to temperature calculates new correction factors SPAN CAL Compensates the SPAN attenuator error and the sweep gain and calculates new correction factors LOG AMP CAL Compensates the logarithmic amplifier for drift and calculates a new correction factors CAL SIGNAL When the CAL SIGNAL is on the calibration signal is displayed The calibration signal is 40MHz 30dBm This function is very useful for system self check AUTO CAL ON OFF When the AUTO CAL is on the calibration routine automatically operates when a tempercture calibration is required This function does not operate when the AUTO CAL is off 5 64 SECTION 6 PERFORMANCE TESTS SECTION 6 PERFORMANCE TESTS In this section measuring instruments along with setup and operation procedures necessary for conducting performance tests described TABLE OF CONTENTS Req
110. t Adapter oO RF Cable6 RF Cable7 RF Cable3 lt 3rd Order intermodulation gt 6 43 SECTION 6 PERFORMANCE TESTS 6 3 14 4 Procedure 6 3 14 4 1 Power meter calibration Step Procedure Connect the Power Meter HP437B to Power sensor 8481 Connect the Power sensor to Power Meter input port Push Power REF button of Power Meter and then display value 0 dBm If display value is not 0 dBm tum Cal AD Set up synthesized signal generators as shown on previous page Synthesized signal generator 1 Frequency 1100 050 MHz Power 20dBm Synthesized signal generator 2 Frequency 1100 000 MHz Power 20dBm U WN 6 3 14 4 2 Measurement of 3rd Order Intermodulation Step Procedure 1 Press PRESET key 2 Press ALL CAL softkey 3 Set the 2398 as shown below Center frequency 1100 025 MHz Reference level 10 dBm Span 500 kHz ATT OdBm RBW Auto VBW Auto Sweep Time Auto 6 44 SECTION 6 PERFORMANCE TESTS 4 Tum generator 2 RF off Adjust signal generator 1 level so that power meter reads 20dBm Tum generator 1 RF off and generator 2 on Adjust signal generator 2 level so that power meter reads 20dBm Tum RF on for both signal generator Press PEAK PEAK key to set the normal marker to one at the two signals at 20dBm 9 Press Z marker key 10 Move nor
111. t PEAK eee eee eee eer eee ee eee eee eee eee eee eee eee eee ee eee eee eee Te eee eee eee ee eT 4 5 TRACE CPL 88844 004 00 4 6 TRIG DISP Peer e ere eee eee ere eee Te eee eee eee eee Tee eee eee Te eee ee eee eee eee ee eee eee eee ee Teer eee eee eee ee eee 4 7 SAVE RECALL 888444 004 0 4 8 CONFIG eee eee Teer eee eee 0 06 eee eee eT eee eee eee eee ee Teer ee eee eee ee 4 9 MEAS 4 10 AUX LIMIT WIN AUTOSET 4 06000000 0 6 0 6 000 ee eee eee eT eee ee ee eee eee eee eee eee 4 11 PRESET 8884484 4 0 0 4 12 4 1 SECTION 4 MENU TREE lt BLANK gt 4 2 SECTION 4 MENU TREE SECTION 4 MENU TREE In this section soft me
112. t acceptance and periodic inspection to verify performance after repair Reference oscillator frequency stability Center frequency readout accuracy Frequency span readout accuracy Resolution bandwidth and selectivity and switching error Sideband noise phase noise Frequency measurement accuracy Amplitude display linearity Frequency response Reference level accuracy Average noise level Second harmonic distortion Input attenuator switching enor Residual FM 3rd Order Intermodulation Spurious Response Local oscillator Emission Input VSWR Execute the performance tests at regular intervals as preventive maintenance for important evaluation items We recommend that the performance be inspected regularly once or twice a year If the specifications are not met at the performance tests please contact IFR Americas 6 3 SECTION 6 PERFORMANCE TESTS 6 2 Instruments Required for Performance Test Recomended instrument name Model name Instruments Required for Performance Test 1 2 Required Performance Item Specification Test Item Synthesized Signal Generator MG3633A HP 8648C Frequency Range Resolution Output Level Range Output Level resolution SSB Phase noise Second Harmonic Amplitude modulation Extemal reference input 10 kHz 2 7 GHz 1Hz 20 dBm 0 dBm 0 1dB lt 130 dBc Hz at 10 kHz offset lt 30 dBc 096 100 0 1 400 Hz
113. talling Memory Card um analyzer CUTOUT Q n k N e o 2 Ne MEMORY CARD TOP SIDE REMOTE N O LOCAL T LIMIT WIN BNA OGG PRESET coNFia L ANALYZER INPUT KkHz 2 7GHz 20VDC 26dBm MAX A Install the memory card to the 2398 with the cutout of the card at the position as shown above o Removing Memory Card Extract Card to remove the memory card o Replacing Battery of Memory Card Each memory card has a battery When the battery life ends the saved data is erased Replace the battery before the life end For the battery life and replacement method see the operation manual of the card 2 10 SECTION 2 PREPARATIONS BEFORE USE AC DC Power and Rechargeable Battery Pack option If the AC DC power supply and rechargeable battery pack is installed the system either or DC power can operate the system The AC power is a LOOVAC to 240Vac and 47 to 63Hz The DC power range is 13V dc to 21V DC The nominal power of the rechargeable battery pack is 14 4 VDC 7AH Ni Cd Battery A sufficiently charged battery pack will operate the system about 1 hour To prevent abnormal operation use the following procedure When the AC power and DC power is input to system simultaneously AC power is used to operate the system When the AC
114. te the instrument under these conditions Refer all questions of proper instrument operation to qualified service personnel 7 Object and Liquid Entry Never push objects of any kind into instrument through openings as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock Never spill liquid of any kind on the instrument Do not use this instrument near water for example near a bath tub wash bow kitchen sink or laundry tub in a wet basement or near a swimming pool and the like Keep the instrument away from damp air water and dust Unexpected trouble may be caused when the instrument is placed in a damp or dusty place Flammable and Explosive Substance Avoid using this instrument where there are gases and where there are flammable and explosive substances in the immediate vicinity Unstable Location Do not place this instrument on an unstable cart stand tripod bracket or table The instrument may fall causing serious injury to a person and serous damage to the instrument Do not place or use the instrument in a place subject to vibration IFR Warranty IFR will repair this equipment free of charge if a malfunction occurs within 1 year after shipment due to a manufacturing fault provided that this warranty is rendered void under any or all of the following conditions The fault is outside the scope of the warranty conditions described in the operation manu
115. tection mode to the maximum detection mode The SAMPLE detection mode stores the instantaneous signal level at each sample point to the trace memory The SAMPLE detection mode is primarily used for noise level measurement and time domain measurement The POS PEAK detection mode compare the maximum level point present between the current display point and next display point then stores the maximum value in the trace memory corresponding to the curent display point The NEG PEAK detection mode compares the minimum level point present between the curent display point and next display point then stores the minimum value in the trace memory corresponding to the curent display point The NEG PEAK detection mode is often used to measure the lower envelope side of a modulated waveform 5 28 SECTION 5 OPERATING PROCEDURES The AVERAGE detection mode is used to reduce the random noise level without reducing the video filter or using the trace average function This allows averaged displays with faster sweep rates The AVERAGE detection mode stores the average data between POS Peak and NEG Peak for each data cell LYL SCALE 15 11 58 20 2 dBm 106 10 dB 20 dB manual TASA r T NORMAL be SAMPLE 05 PEAK NEG PEAK AVERAGE RETURN 40 000 MHz 1 000 MHz 10 kHz 10 kHz 1 05 int re auto auto manual CENTER SPAN RBW VBN SWEEP Fig 5 20 Detection Mode 5 29 SECTION 5 OPERATING PROCEDURES
116. ted due to momentary power supply interruption or power failure the power will not be tumed on even when power is restored This is because this equipment enters the standby state and prevents incorrect data from being acquired when the line has to be disconnected and reconnected For example if the sweep time is 1 000 seconds and data acquisition requires a long time momentary power supply interruption power failure might occur during measurement and the line could be recovered automatically to power on In such a case the equipment may mistake incorrect data for correct data without recognizing the momentary power supply interruption If this equipment enters the standby state due to momentary power supply interruption or power failure check the state of the measuring system and press the front power switch to restore power to this equipment Further if this equipment is built into a system and the system power has to be disconnected then reconnected the power for this equipment must also be restored by pressing the front power switch DETECTION MODE This instrument is a spectrum analyzer which uses a digital storage system The spectrum analyzer makes level measurements in frequency steps obtained by dividing the frequency span by the number of measurement data points 500 Because of this operation it is desired to use the following detector modes associated with the appropriate measurements Measurement Detector mo
117. th attenuation of 70dB or more at twice the fundamental frequencies SPECTRUM ANALYZER Power Meter Synthesized signal Generator LPF RF Splitter MG3633A RF Cable 1 Second Harmonic Distortion 6 37 SECTION 6 PERFORMANCE TESTS 6 3 11 4 Procedure Step Procedure 1 Press PRESET key 2 Press ALL CAL softkey 3 Set up the 2398 as shown below 95 MHz 5 50 kHz Reference level 4048 RBW 300 Hz VBW 30Hz Sweep time Auto 4 Synthesized signal generator as shown below Frequency 95 MHz Power 40dBm 5 Adjustthe signal generator level that the signal measured is 40dBm on the 2398 6 Setthe Center Frequency to twice the fundamental frequency to display the second harmonic on the screen 7 Press PEAK MKR gt CF key and calculate the difference from 40dBm Signal generator Second harmoinc Output power Frequency marker level dBc Frequency 95 MHz 190 MHz 40 dBm 245 MHz 490 MHz 495 MHz 990 MHz 995 MHz 1990 MHz Example 40dBm 95 2 105dBm 65dBc 190MHz 6 38 SECTION 6 PERFORMANCE TESTS 6 3 12 Input attenuator switching This test measures the switching error when the amount of attenuation in the RF
118. the container 4 Secure the container with packing straps adhesive tape or bands Transportation Do not subject the 2398 to severe vibration during transport It should be transported under the recommerded storage conditions 7 5 SECTION 7 STORAGE AND TRANSPORTAION Service If the 2398 is damaged does not operate as specified contact your nearest IFR dealer business office for repair When you request repair provide the following information a Model name and serial number on rear panel b Fault description c Name of a personnel in charge and address for contact when fault confirmed or at completion of repair DESIR 7 6 IFR AMERICAS 10200 West York Street Wichita KS 67215 Phone 316 522 4981 Email ifrsys com FAX 316 524 2623 Web site www ifrinternational com IFR LIMITED Longacres House Norton Green Road Stevenage Herts England SG1 2 Phone 44 0 1438 742200 Email ifrinternational co uk FAX 44 0 1438 742010 Website www ifrinternational com Americas Inc
119. the result as Trace A Tums on the mode that subtracts Trace B from Trace A adds the Display Line and displays it on Trace A Exchanges the contents of Trace A memory and Trace B memory Retums to the previous menu LVL SCALE AID 30 0 dBm 106 10 dB 0 T auto 12 20 43 B DL2B AtB gt gt A amp BtDL gt A A EXCH B RETURN 40 000 MHz 1 000 MHz 10 kHz 10 kHz 50 0 ms int ref auto auto auto CENTER SPA RBW VBW SWEEP Fig 5 19 Trace Computation 5 27 SECTION 5 OPERATING PROCEDURES Detection Mode The 2398 provides the following five detection modes NORMAL SAMPLE POS PEAK NEG PEAK AVERAGE Select the detection mode by performing the following key operation NORMAL TRACE gt gt DETECT gt amp AMPIE RETURN POS PEAK NEG PEAK AVERAGE The 2398 uses the oversampling method to acquire video data This method does not lose valid data in case the RBW is less than the frequency cell The NORMAL detection mode is similar to the POS PEAK NEG PEAK Detection mode The odd number horizontal line displays the maximum value among oversampling data for 1 display point The even number horizontal line displays the minimum value among oversampling data for 1 display point But in case the NORMAL detection mode the signal do not miss because the even number of the horizontal line is changed from the minimum de
120. time domain RBW VBW Sweep time and other coupling functions can be set to different values REF LVL SCALE 19 46 35 20 0 dBm LOG 10 dB 10 dB manual SPAN i i i WIDTH LAST SPAN Z00M IN ZOOM QUT 1 375000000 GHz 0 Hz 30 kHz 30 kHz 7 6 8 int ref manual auto auto CENTER SPAN VBN Fig 5 7 Zero Span Return to the previous span The previous span is retumed by the following key operation SPAN LAST SPAN SECTION 5 OPERATING PROCEDURES Zoom In Zoom Out The ZOOM IN function changes the span from the current span to 1 2 of the current span The ZOOM OUT function changes the span from the current span to 2 times the current span The center frequency is not changed SPAN ZOOM IN gt ZOOM OUT SCALE 20 0 dBm LOG 10 dB 10 dB manual SPAN WIDTH 19 47 11 FULL SPAN ZERO SPAN LAST SPAN ZOOM IN ZOOM OUT 40 0000 MHz 250 0 kHz 30 kHz 30 kHz 50 0 ms int ref _ manual auto auto CENTER SPAN Fig 5 8 Zoom In REF LVL SCALE 19 47 28 20 0 dBm LOG 10 dB 10 dB manual SPAN i i WIDTH FULL SPAN ZERO SPAN LAST SPAN ZOOM IN ZOOM OUT 40 000 MHz 4 000 MHz 30 kHz 30 kHz 50 0 ms int ref _ manual auto CENTER j RBW VBW Fig 5 9 Zoom Out SECTION 5 OPERATING PROCEDURES AMPLI
121. uirement for Performance Tests eee ee eee eee eee eer ee 6 3 Instruments Required for Performance Test 6 4 Performance Test HMM 6 z 6 Reference oscillator frequency stability 6 6 Center frequency readout 6 8 Frequency span readout accuracy II 6 11 Resolution bandwidth RBW and selectivity and switching eror 6 14 Sideband Noise Phase noise E 6 20 Frequency measurement accuracy EE 6 22 Amplitude display linearity T0000 6 24 Frequency IBSDOL SG see ena TESE dus 6 30 Reference level accuracy 8 4 0 600600060 6 32 Average noise level I PE 6 z 35 Second distortion 6 37 Input attenuator switching HH 6 2 39 Residual e 6 41 3rd Order Intemodulation n 6 43 Spurious Response ee esse 000000000 6 z 46 Local oscillator Emission n 6 48 Input VSWR eee HH 6 50 M J 6 1 SECTION 6 PERFORMANCE TESTS lt BLANK gt 6 2 SECTION 6 PERFORMANCE TESTS 6 1 Requirement for Performance Tests Performance tests are used as preventive maintenance to prevent degradation of the 2398 performance before it occurs Use the performance tests whenever necessary such as a
122. vervoltages According to Installation Category II 14 8 1 3 Pollution Degree 2 14 9 RF Emissions and Immunity 14 9 1 RF Emissions Complies with EN 55011 1991 Class A 14 9 2 RF Immunity Complies with EN 50082 1 1997 1 10 SECTION 2 PREPARATIONS BEFORE USE SECTION 2 PREPARATIONS BEFORE USE This section explains the preparations and safety procedures that should be performed before using the 2398 Spectrum Analyzer The safety procedures are to prevent the risk of injury to the operator and damage to the equipment Ensure that you understand the contents of the pre operation preparations before using the 2398 For connecting the GPIB cable and setting the GPIB address see the remote control operation in Volume 2 TABLE OF CONTENTS S Installation Site and Environmental Conditions r 2 3 Locations to be avoided tene 2 3 Fan clearance ttt 2 3 Safety Measures eene duse i cie uad ae a eae 2 4 Poweron E E 2 4 to RF InDUE eter te ener ena etta 2 5 Preparations before Power on 2 6 tata OR er blot 2 7 Replacing fuse es 2 8 Precaution for handling memory card option 2 10 AC DC power and rechargeable battery pack option 2 11 Replacement of fuse for DC power option 2 12 How to contact DC Battery pack option 2 13 2 1 SECTION 2 PREPARATIONS BEFORE USE lt BLANK gt 2 2 SE
123. work Analyzer calibration procedure 2 Preset PRESET key on 2398 2398 Specification Measured Value 1511 6 50 SECTION 7 STORAGE AND TRANSPORTAION SECTION 7 STORAGE AND TRANSPORTATION This section describes the long term storage repacking and transportation of the 2398 as well as the regular care procedures and the timing TABLE OF CONTENTS S Storage erat eee 7 4 Precautions before storage 7 4 Recommended storage precautions 7 4 Repacking and Transportation 7 5 Repackihg aM 7 5 Transportation eT 7 5 7 6 7 1 SECTION 7 STORAGE AND TRANSPORTAION lt BLANK gt 7 2 SECTION 7 STORAGE AND TRANSPORTAION SECTION 7 STORAGE AND TRANSPORTATION Cleaning Cabinet Always tum the 2398 POWER switch OFF and disconnect the power plug from the AC power inlet before cleaning the cabinet To clean the extemal cabinet Use a soft dry cloth for wiping off Use a cloth moistened with diluted neutral cleaning liquid if the instrument is very dirty before long term storage After insuring that the cabinet has been thoroughly dried use a soft dry cloth for wiping off If loose screws are found tighten them with the appropriate tools Never use benzene thinner or alcohol to clean the extemal cabinet it may damage the coating
124. z to 100 kHz lt 80dBm 100 kHz to 1 MHz lt 100dBm 1 MHz to 2 7 GHz lt 105dBm 300 Hz RBW 10 Hz Video Filter 2 3 1dB Compression Point 10 dBm 100 kHz to 2 7 GHz 0 dB attenuation 2 4 Displayed Range 80 dB in 10 dB div log scale 40 dB 5 dB div log scale 16 2 dB div log scale 8 GB in 1 dB div log scale 8 divisions with linear amplitude scale 2 5 Amplitude Units 2 5 1 Log Scale Mode dBmvV or dBm units 2 5 2 Linear Scale Mode V uV mV etc or dBV dBmV only 2 5 2 Quasi Peak Enabled dBuV dBmV or dBm only 2 6 Display Linearity 2 7 Frequency Response 2 8 Attenuator 2 8 1 Range 2 8 2 Resolution 2 8 3 Accuracy 2 9 Reference Level 2 9 1 Accuracy 2 9 2 Range 2 9 3 Resolution 2 10 Residual Spurious 2 11 Harmonic Distortion 2 12 Intermodulation Distortion 3rd order 0 dB attenuation 2 13 Other Input Related Spurious 2 14 Resolution Bandwidth 2 14 1 Selections 2 14 2 Accuracy 2 14 3 Selectivity 2 14 4 Switching Error 2 15 Video Bandwidth Selection SECTION 1 GENERAL 5 or 10 dB div 0 15 dB dB lt 1 5 dB over 8 divisions 10 2 dB div 3 0 5 dB over 8 divisions Linear 10 of Reference Level over 8 divisions 3 0 1 dB 9 kHz to 10 MHz 1 5 dB 10MHz to 2 7 GHz 10 dB RF attenuation 0 to 50 dB Selected manually or automatically coupled to reference level 10 dB steps 50 kHz to 2 7GHz 0 5dB step up to 1dB maximum 1 5 dB 50 kHz to 2 7GHz 110 dBm to 3

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