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B&K Precision 2650A User Manual

1. Setting of 2650A 2652A 2651 2658A Measurement Wisin Center frequency Frequency span RBW 1 value 50 kHz 200 kHz 10 kHz Within Reference 2 6 dB 1dot 100 kHz 200 kHz 30 kHz Within Reference 2 6 dB 1dot 1 MHz 2 MHz 100 kHz Within Reference 2 6 dB I dot 10 MHz 10 MHz 3 MHz Within Reference 2 0 dB I dot 100 MHz 10 MHz 3 MHz Reference 1 GHz 10 MHz 3 MHz Within Reference 1 0 dB 1dot 2 GHz 10 MHz 3 MHz Within Reference 1 0 dB 1dot 3 3 GHz 10 MHz 3 MHz Within Reference 1 0 dB Idot 6 2 GHz 2 10 MHz 3 MHz Within Reference 1 0 dB Idot 8 5 GHz 2 10 MHz 3 MHz Within Reference 1 0 dB 1dot 1 RBW switching error is included at RBW other than 3 MHz 2 2658 only Setting of 2650A 2652A 2651 2658A Setting of calibration unit Reference level 154 Frequency Same as a center frequency of VBW 1MHz 2650A 2652A 2651 2658A Sweep time Is Detectionmode SMPL Output power Adjust the power indication of Display scale 2dB div 2650A 2652A 2651 2658A to 15 dBm T 27 2 Accuracy of Reference Level Adjust the output level ofthe calibration unit so that the displayed value of this unit is the Oth div from the top and calibrate the absolute value with the receiver for calibration microwave power meter etc Setting of 2650A 2652A 2651 2658A
2. Marker measurement NORM displays frequency 8digits max and level 4digits max at marker point DELTA displays frequency difference and level difference between two markers Peak search function Searches for peak level with all of 10 div NORM mode or within ZONE specified ZONE mode and displays frequency and level at peak level and moreover NEXT peak at NORM mode Calculation function NORM MAX HOLD MIN HOLD AVERAGE OVER WRITE Number of sweeps is 2 to 1024 power of 2 and infinite Measuring function Channel power Adjacent channel power Occupied bandwidth Electric field strength needs optional dipole antenna Magnetic field strength needs optional magnetic field probe and Frequency counter Auto tuning When pressing AUTO TUNE key the spectrum of maximum level within full span is adjusted to center and reference level RBW VBW and sweep time are set to optimum parameters Save Save Saves 200 spectrums and 200 setting parameters Load Load Loads one spectrum and one setting parameter General 2650A 2652A 2658A 2651 common Input connector connector USB Communication Protocol USB version 1 1 will also work with USB 2 0 devices Device Connector B plug Transfer rate 12 Mbps Hard copy USB printer option connected to A plug host enables hard copy of screen host connector A plug Display Display 5 7 inches and color LCD Backlight LED
3. 30 133 ALL AUTO MODE 30 13 4 SETTING OF DETECTION 30 13 5 SETTING OF TRIGGER SOURCE 31 14 AUTO TUNING AUTO gt 31 15 HOLD RUN lt gt 31 16 CALCULATION FUNCTION CALC 32 16 1 NORMAL 32 16 2 MAX HOLD 32 16 3 MIN HOLD 32 16 4 AVERAGE MODE 33 16 5 OVERWRITE MODE 33 16 6 SPURIOUS FREE MODE 2658A ONLY 33 17 MARKER amp PEAK SEARCH lt gt 34 17 1 MOVEMENT AND BASIC FUNCTION OF MARKER 35 17 2 NORMAL PEAK SEARCH 35 17 3 ZONE PEA
4. 73 25 8 WRITING OF ORIGINAL COMPENSATION DATA 74 26 OPTION 76 27 BASIC PERFORMANCE TEST 2650A 2651 2652A 2658A 77 27 1 FREQUENCY CHARACTERISTICS 77 27 2 ACCURACY OF REFERENCE LEVEL 78 27 3 DISPLAY ACCURACY OF CENTER FREQUENCY 78 27 4 DISPLAY ACCURACY OF FREQUENCY 79 27 5 LINEARITY OF AMPLITUDE AXIS 79 1 Outline 1 2 3 4 5 7 8 9 1 4 Product outlines The 2650 series are authentic s pectrum analyzers compact a nd l ightweight f orm factor pr oviding performance and functions comparable to large size bench type instruments The features are as follows Compact and lightweight 1 8 kg The dimensions are 162 W 71 H 265 D mm and the weight is only 1 8 kg including the battery making the instrument very convenient for field use Large color TFT display 5 7 inches 640x480 color LCD Four hours battery operation The included Lithium ion battery when fully charged can provide power for up to four hours of operation with the backlight tumed off And about
5. 50 20 1 ADDITIONAL FUNCTION FOR EMI TEST 50 20 2 1 51 21 SCREEN CONTROL lt 1 gt 53 21 1 SETTING SCREEN DISPLAY 54 21 2 ON OFF SWITCHING OF LCD BACKLIGHT 54 21 3 ADJUSTING BRIGHTNESS OF LCD 54 1 22 TRACKING GENERATOR MODE 26524 54 22 1 SPECIFICATION OF T G FUNCTION 54 22 2 DESCRIPTION OF I O 55 22 3 ON OFF SWITCHING OF T G 55 22 4 NORMALIZING 56 23 STORAGE PRINT SCREEN IMAGE lt COPY gt 57 23 1 SELECTION OF IMAGE AREA 57 23 2 PRINT ON PRINTER 57 23 3 STORAGE INTO USB MEMORY 57 23 4 TRANSFERRING
6. 19 6 2 CONNECTION TO POWER 5 1 19 6 9 BATTERY 20 6 4 INSTALLATION OF BATTERY 20 7 CENTER FREQUENCY FREQ 21 7 1 SETTING WITH STEP KEYS 1 2 21 7 2 SETTING WITH ENCODER 21 7 8 SETTING WITH NUMERIC 22 7 4 ACCORDING TO MARKER POSITION 23 8 FREQUENCY SPAN SPAN rrr rrr nnnm n nenne nnnm nennt 23 8 1 SWITCHING FREQUENCY 24 9 REFERENCE LEVEL REFER m nnn rrr nnm nnn 25 9 1 SETTING OF REFERENCE LEVEL 25 9 2 CHANGE OF UNIT OF AMPLITUDE 5 25 9 3 X SETTING OF STEP SIZE OF REFERENCE LEVEL 25 9 4 ON OFF SETTING OF OFFSET 25 9 5 SETTING OF
7. Rw The following are the data when the antenna 15 connected to RF input directly with no obstacles around Actually the directivity changes due to the human body when handling the unit However the data of M405 is the reference data which is included the influence of the human body M401 900 MEZ E plane Antenna gain vs Frequency a wD wr 03 035 03 0 95 Frequency GH 3 46 M402 1 5 GHz E plane Antenna vs Frequency 4 M a ISTH SOK AS XK 271155560 UJ Bp We Ok S NJ N RY SS Es TTX oe Cy E 22724 if M V S XS 49 Ss lt lt 2 nS Frequency GH 2 M403 2 GHz plane Antenna gain vs Frequency Se RRS SERED SN 51 225240 ch DEX 252 S RSS KSC XS SENT SS ML 17 18 19 2 21 22 Frequency GHz Antenna gain vs Frequency ANT Gain dBi Frequency GHz 47 405 horizontal plane Antenna gain vs Frequency ANT Gain dBi 300 325 350 375 400 425 450 475 500 Frequency MHz Antenna gain vs Frequency 405 520 545 570 595 620 Frequency GHz 19 5 Magnetic Field Strength Measurement M F PROBE magnetic field distribution can be measured by using the magnetic field probe 25 o
8. Occupied bandwidth measurement E F ANT Electric field strength measurement M F PROBE Magnetic field strength measurement FREQ COUNT Frequency counter factory option Once the measuring function 15 set when is pushed the function menu is directly returned to the last setting of the measuring function In order to stop the measuring function or to select the other measuring function push F6 key MEAS OFF then the function menu is returned to the main menu of the measuring function Each ofthe four functions Channel power Adjacent channel leakage power Occupied bandwidth and Frequency counter and the marker function cannot be used at the same time When is pushed while each ofthe four functions is selected the measuring function will stop Similarly when the measuring function is selected while using the marker function the marker function will stop Although 501 points can be displayed on the screen the number of points calculated in the instrument is 1001 19 1 Channel Power Measuremnt CH POWER The total power in the specified frequency band is measured Two modes TOTAL and BAND are available TOTAL mode By pushing MODE TOTAL mode is selected sum of power in the displayed spectrum specified by center frequency and frequency span is measured 41 CP TOTAL CP TOTAL is displayed in MEAS area on the scree
9. 25 9 6 SETTING OF INPUT 26 9 7 REFERENCE LEVEL SETTING RANGE FOR EACH UNIT 26 9 8 RELATIONSHIP BETWEEN REFERENCE LEVEL AND AT DBM 27 10 DISPLAY SCALE SCALE mnn nnn nennen nnnm nnne 28 10 1 SETTING THE FUNCTION 28 11 RESOLUTION BANDWIDTH lt gt 28 11 1 MANUAL 28 11 2 AUTO 29 11 3 ALL AUTO MODE 29 Contents 12 VIDEO BANDWIDTH lt gt 29 121 MANUAL 29 12 2 AUTO 29 12 8 AUTO MODE 30 13 SWEEP AXIS DETECTION MODE SWEEP 30 13 1 MANUAL 30 13 2 AUTO MODE
10. 500 screen position center 250 Example ACPOFS100 Query ACPOFS 15 Setting bandwidth for adjacent channel power measurement Command ACPCHBW 0 500 screen position center 250 Example ACPCHBW30 Query ACPCHBW 16 Setting reference band center frequency for adjacent channel power measurement Command ACPREF 66 0 500 screen position center 250 Example ACPREF250 Query ACPREF 17 Setting reference bandwidth for adjacent channel power measurement Command ACPREFBW 0 500 screen position center 250 Example 50 Query ACPREFBW 18 Setting mode for occupied bandwidth measurement Command OBWMODE Command DB N POWER mode Example OBWMODEN DB XdBDOWN mode Query OBWMODE 19 Setting N RATIO for occupied bandwidth measurement Command OBWRATIO 80 0 to 99 9 0 1 step unit Example OBWRATIO85 6 Query OBWRATIO 20 Setting XdB DOWN for occupied bandwidth measurement Command OBWDB 0 1 to 99 0 0 1 step unit dB Example OBWDB45 3 Query OBWDB 21 Setting antenna for electric field strength measurement Command EFANT 2 g data for 01 M404 405 M406 USER Setting data for M402 Example EFANTMA0S Query FANT USER Setting data for user s original antenna 22 Transfer user
11. x280mm 7 50 x210mm 7 59 x210mm 8 E 22mm 7 x 52mm Approx 58g Amex 60g Approx 58g Approx 56g 6g Ames 54g Reference level setting range 93to 143 96to 146 99 to 149 100 to 150 87 to 137 109 to 159 except for the ua dBuV m dBuV m dBuV m dBuV m dBuV m dBuV m minimum value in screen shift When M405 is used the measurement errors will occur due to how to hold of instrument and influence of human body because M405 is 74 Xwhip antenna The error value will be several dB or more In order to reduce the error separate 2650A series from human body as much as possible Mode Selection and Measurement By pushing the antenna M401 M402 M403 M404 M405 M406 USER can be selected The measurement starts as soon as the antenna is selected 45 E F M40X or E F USER is displayed in MEAS area on the screen USER is the original compensation data which 15 created by the user Refer to 25 8 Writing of Original Compensation Data for the details The spectrum may exceed the area on the screen depending on the antenna gain compensation The unit of amplitude axis automatically changes into dBuV m The optimum center frequency and frequency span are automatically set according to the antenna In addition a spectrum other than the frequency range ofthe antenna is not displayed Directivity of Antenna reference data 11 n E plane X Y axis X direction 0
12. e Set the reference level 13 Refer to 10 Display scale for details 9 Set the display scale Refer to 11 Resolution Bandwidth for details Set the RBW Refer to 12 Video Bandwidth for details 9 Setthe VBW Referto 13 Sweep Axis Detection Mode for details T G MODE is only for 2658A 14 Referto 16 Calculation Function for details SPR FR is only for 2658A ER ES L 9 Refer to 17 Marker amp Peak Search for details e Move the marker NORM mode F4 Peak Search ea 5 7 R Setthe zone center frequency ZONE mode 15 SAVELOAD Referto 18 Save Load for details MODESELECT Savemenu Load menu File Search Step EE n wq s 9 Set the address to call the spectrum or the parameter Delete menu FileSearch Step BORNE e Set the address to eliminate the trace or parameter For2651 Preset menu for 2651 16 Refer to 19 Measuring Function for details AE Input the probe ID first time only Refer to 19 5 Magnetic field strength measurement for details 17 Refer to 21 Screen Control for details 5 Referto 23 Storage Print Screen Image for details Referto 24
13. 17 2 Normal Peak Search e Menu of normal peak search When is pushed the following function menu is displayed 1 When is pushed the marker moves to the maximum peak position of spectrums 2 When is pushed the marker moves to the next highest peak Fifty or less peaks are available 3 When is pushed the function menu 15 returned to the main menu of marker function 17 3 Zone Peak Search e Menu of normal peak search When is pushed the following function menu is displayed 35 At the Zone mode the marker automatically moves to the maximum peak point within the range set beforehand When entering this mode the zone is displayed with thin blue shadow in the spectrum display area The marker moves to maximum level within this zone at each sweep The center ofthe zone can be adjusted by pressing e The width of the zone can be adjusted by pressing Note The marker does not move HOLD 17 4 Change Unit of Marker Level When is pushed the unit ofthe marker level is changed If the unit ofthe reference level is dBm it can be changed to dBm W If the unit ofthe reference level is dBuV dBmV or dBV it can be changed to dBuV dBmV dBV V If the unit of the reference level is dBuV m it can be changed to dBuV m V m If the unit of the reference level is dBuA m it can be changed to dBuA m A m Note V M is only displayed when the electric field strength mea
14. frequency compensation data Example of M405 300M 0 0DBL350M 1 0DBLA400M 1 4DBL450M 1 4DBI 500M 0 0DBI Write the unit with a capital letter as it is case sensitive G GHz is also available 2 Write the text file into the unit with 2650A PC software Connect the personal computer to 2650 series with the included USB cable and turn on the power of the 2650A 2651 series From the upper menu ofthe PC software select File Write E F User Data in case of electric field strength measurement or select File Write M F User Data in case of magnetic field strength measurement When the text file created beforehand is selected the data is written nstall the specified USB driver in the personal computer prior to using the PC software Referto 25 3 Installation of Driver 4 Method of using original program for writing 1 Prepare the USB communication software Connect the personal computer to the 2650A 2651 series with the included USB cable and turn on the power of the 2650A 2651 series 2 Write the data into the unit Transfer the data in the following format with the USB communication software Format In case of electric field strength measurement EFUSER frequency compensation data frequency compensation data In case of magnetic field strength measurement MFUSER frequency compensation data frequency compensation data Example of CP 2S MFUSER10M
15. 4 8 6 gt 3 64 128 E 256 512 1024 infinite When this mode is set number of times is displayed in the CALC area on the screen Refer to 4 Explanation of Screen for the details 16 3 MIN HOLD Mode 1 Bythe operation of e the number of times of the sweep in the MIN HOLD mode 15 set 32 2 The update spectrum data is compared with the data left last time at each point and the smaller one is retained and displayed 2 4 3 gt 6 32 64 128 When this mode is set MIN number of times is displayed in the CALC area on the screen Refer to 4 Explanation of Screen for the details 16 4 AVERAGE Mode 1 Bythe operation of e the number of times of the sweep in the AVERAGE mode 15 set 2 The simple averaging process is executed at each sweep 2 lt gt 4 8 6 32 64 128 E o When this mode is set AVG number of times is displayed in the CALC area the screen Refer to 4 Explanation of Screen for the details 16 5 OVERWRITE Mode 1 By the operation of 9 the number of times of the sweep in the OVER WRITE mode is set 2 The image on the screen is not cleared at each sweep and the overwriting display is executed 2 8 6 3 64 lt 128 255 512 1024 infinite When this mode is set OVER WR is displayed in the
16. ZERO 200K 500K 2M 5M 10M 20M 50M 100M 200M 500M 1G 2G 5G FULL unit Hz Example SPANS00K Query SPAN When the unit is other than dBm convert into dBm by using calculation formula in 9 8 Relation between reference level and 4 Setting reference level Command REF 60 to 10 1 step unit dBm Example REF 5 Query REF 5 Setting reference level unit Command UNIT DBM DBUV DBMV DBV Example UNITDBUV 64 6 Setting RBW Command RBW 2650A 2652A 2658A 3K 10K 30K 100K 300K 1M 3M AUTO ALL unit Hz 2651 3K 9K 30K 120K 300K 1M 3M AUTO ALL unit Hz ALL The optimum RBW VBW and sweep time set based on the frequency span AUTO The optimum RBW is set based on the frequency span Example RBW3M Query RBW 7 Setting VBW Command VBW 100 300 IK 10K 30K 100K 300K IM AUTO ALL unit Hz ALL The optimum RBW VBW and sweep time are set based on the frequency span AUTO The optimum RBW is set based on the frequency span Example VBW300 Que VBW Nr 8 Selecting Measuring Function PUDE bandwidth measurement LI uw ma FC OFF Frequency counter factory option Example MEASOBW OFF To change measuring function when in a different measurement mode set function OFF first by
17. the detection mode can be set SMPL gt AV J the 2651 QP detection and AV detection are added for EMI measurement POS Positive Peak The spectrum of the maximum value between the sample points SMPL Sample The spectrum of the momentary value between the sample points NEG Negative Peak The spectrum ofthe minimum value between the sample points QP Quasi Peak The spectrum ofthe quasi peak value between the sample points AV Average The spectrum ofthe average value between the sample points As for QP detection the following characteristics are chosen according to RBW settings based on CISPR16 RBW charging dis charging meter timeconstant timeconstant time constant 9kHz 1ms 160ms 160ms 120kHz 1ms 550ms 100ms Preset Initialization Refer to 18 Save Load In the 2651 the radiated emission measurement and the conducted emission measurement are added to the preset as a default setting Bypushing SAVELOAD the menu is displayed NORMAL The initial parameters of normal mode are set The initial parameters of conducted emission measurement are set EMER The initial parameters of radiated emission measurement are set In the radiated mission measurement USER is selected as an antenna It is necessary to input the compensation data of antenna beforehand 50 20 2 Test detection is usually used in
18. CISPR22 class B 0 15 MHz to 0 50 MHz 66 to 56 dBuV 56to46dBuV Decreasing linearly with the logarithm ofthe Limits of conducted disturbance at 0 50 MHz to 5 MHz 56dBuV 46dBuV frequency mains ports 5 MHz to 30 MHz 60 dBuV 50 dBuV CISPR22 class A 30 MHz to 230 MHz 40 dBuV m Measurement distance 10 m Limits of radiated disturbance 230 MHz 1000 MHz 47 dBuV m 1000 MHz to 3000 MHz 76 dBuV m 56 dBuV m 3000 MHz to 6000 MHz 80 dBuV m 60 dBuV m CISPR22 class B 30 MHz to 230 MHz 30 dBuV m Measurement distance 10 Limits of radiated disturbance 230 MHzto 1000 MHz 37 dBuV m 1000 MHz to 3000 MHz 70 dBuV m 50 dBuV m 3000 MHz to 6000 MHz 74 dBuV m 54 dBuV m VCCI class 0 15 MHz to 0 50 MHz 79 dBuV 66dBuV Limits of conducted disturbance at 0 50 MHz to 30 MHz 73 dBuV 60dBuV mains ports VCCI class B 0 15 MHz to 0 50 MHz 66 to 56 dBuV 56to46dBuV Decreasing linearly with the logarithm of the Limits of conducted disturbance at 0 50 MHz to 5 MHz 56dBuV 46dBuV frequency mains ports 5 MHzto 30 MHz 60dBuV 50dBuV VCCIclass 30 MHzto 230 MHz 40dBuV m Measurement distance 10 Limits of radiated disturbance 230 MHz 1000 MHz 47 dBuV m 1000 MHz to 3000 MHz 76 dBuV m 56 dBuV m Measurement distance 3 m 3000 MHz to 6000 MHz 80 dBuV m 60 dBuV m VCCI class 30 230 MHz 30 dBuV m Measurement distance 10 m Limits of radiated disturbance 230 MHz 1000 MHz 37 dBuV m 1000 MHz to 3000 MHz 70 dBuV m 50 dBuV m Measurement distance 3 m 3000 MH
19. Example CLC0902111103 Query CLC 72 57 Setting tracking generator Command TG ON OFF Example TGON Query TG 58 Setting normalizing function Command NORM ON OFF Example NORMOFF Query NORM 59 Save Load function Command DEV MEN USB 60 Request On Off of Offset Level Command OFFSETOF Retumed data ON or OFF 61 Request firmware version Command VER 25 6 Input of Frequency The frequency is input as follows 0 0k to 999 9k 0 1 step unit Hz 0 0M to 999 9M 0 1 step unit Hz 0 0000G to 3 3G 0 0001 step unit Hz 2650A 2652A 2651 0 0000G to 8 5G 0 0001 step unit Hz 2658A The offset frequency and the zone width can be input only in the range decided by the center frequency and frequency span If the value out of the range is input an error occurs The offset frequency and the zone width change when the frequency span is changed 25 7 Transfer of Spectrum Data 73 The spectrum data outputs as a numeric string separated commas 47 The unit is dBm and it is available up to two decimal places e Description SPECT The data which follows the string SPECT is the spectrum data SPECT It is the spectrum data This string consists of all data points 102 01 102 03 separated by comma after each data value and the string can have a total often data points line
20. For example 110 12 transferring spectrum data of 1001 points require a total of 101 lines 25 8 Writing of Original Compensation Data When antennas or probes other than the option is used in electric field strength measurement or magnetic field strength measurement it is necessary to write each original compensation data into the unit Please write the data into the unit according to the following description There are two methods for writing Either use the 2650A PC Software or write a custom program using interface commands 1 Preparation items Windows PC with USB interface The writing can be done with 2650A 2651 series unit only 2650A PC software Refer to 3 below 2 Example of writing data As an example the compensation data antenna gain of antenna M405 and the compensation data compensation coefficient of magnetic field probe CP 2S are shown below Compensation data antenna gain of antenna M405 Compensation data compensation coefficient of magnetic field probe CP 2S xu Compensation 86 7dB 69 2dB 50 7dB 44 9dB 40 1dB coefficient Data of ten points or less can be written OHZ is not valid as a data point 3 Using 2650A PC software for writing 1 Create the text file of compensation data 74 Create a new text file and open it with a text editor Write the frequency and compensation data in the following format Format frequency compensation data
21. Utility Function for details S e ee 9 Select the character pow E L3 Select the numeric value 18 6 Preparing for Operation 6 1 Stand Utilize the stand on the back to use the screen in an easier to see angle the desk 6 2 Connection to power supply The AC adapter MA400 is used to power the instrument and for charging the MB400 battery Charging starts automatically if the AC adapter is connected and unit is power off Connect the adapter as in the figure below and connect the AC plug to the power line 100 240 VAC 50 60 Hz For static electricity protection ground the unit by connecting the three cores if possible Not grounding the unit can damage the unit and or device being measured Do not use an AC adapter other than the MA400 supplied with the unit Using an AC adapter other than the MA400 may cause damage to the unit Battery full charge time approx 4 hours Battery operating time 4 hours maximum with backlight set to minimum Tested at normal temperature with initial setting 55 4 Please make sure to connect to ground Connect to 100 to 240 VAC 50 60 Hz The battery indicator is divided into five levels and is displayed on the screen When the mark of the battery remainder displays 1 the buzzer will sound even if buzzer is OFF under settings and the power will tum off within a few minutes E
22. of points per trace 501 dots are visible on the display 1001 dots of trace data are captured internally and can be transferred to a PC via USB device interface Resolution bandwidth 3 dB bandwidth 6 dB for 2651 9 kHz 120 kHz Setting range 3 kHz to 3 MHz 1 3 step and AUTO 2651 3 kHz 9 kHz 30 kHz 120 kHz 300 kHz 1 MHz 3 MHz Accuracy 20 Selectivity 1 12 typical 3 dB 60 dB Video bandwidth 100 Hz to 1 MHz 1 3 step and AUTO SSB phase noise 90 dBc Hz typical 100 kHz offset RBW 3 kHz VBW 100 Hz sweep time 1 s Spurious response less than 60 dBc Harmonics less than 40 dBc 2100 MHz Amplitude section 2650A 2652A 2651 2658A Reference level Setting range 10 to 60 dBm 1dB step Accuracy within 0 8 dB 1 dot center frequency 100 MHz RBW 3 MHz VBW 1 MHz REF 15 dBm 23 5 C Unit dBm dBV dBmV dBuV dBuV m dBuA m dBuV m and dBuA m are used for measurement functions Average noise level 127 dBm typical CF 1 GHz RBW 3 kHz VBW 100 Hz Ref level lt 40dBm preamp automatically ON Frequency within 2 0 dB 1dot 50 kHz to 100 MHz within 2 0 dB ldot 50 kHz to 100 MHz characteristics within 1 0 dB 140 100 MHz to 3 3GHz withi
23. 19 5 Magnetic Field Strength Measurement for the details mum Frequency range 10 MHz to 3 GHz Specification Space resolution approx 0 25 mm depending on objects Dimensions outside 120 x135 mm probe tip 2 mm W x1 mm T Connectors SMA P USB printer With AC adaptor and one roll of paper Refer to 23 Storage Print of Screen Image for the details Printing method Thermal line dot method Lacan Paper 80mm width thermal paper Power source internal AA sized alkaline battery 4 pcs external 7 5 VDC 3 A dedicated AC adapter Dimensions 134 W x60 H x180 D mm Weight 222 approx 450 g mainframe only Roll printer 10 rolls For USB printer 76 27 basic Performance Test 2650A 2651 2652A 2658A To keep the quality ofthe unit regular performance testing is recommended This section describes a method and specification of basic performance testing If a problem is found in the results of basic performance testing or formal testing is required please contact B amp K Precision Connection diagram Spectrum analyzer calibration unit Receiver for calibration 2650 2651 series 27 1 Frequency Characteristics Adjust the output level of the spectrum analyzer calibration unit thereafter calibration unit so that the displayed power v alueis 15dBm at e ach frequency fort his unit and m easure the absolute value with a receiver for calibration microwave power meter etc
24. For the sequence of selection for the function menu refer to 5 2 Menu 12 Funcionmenu Key Sequence Page Functionmenu ___ Key Sequence Page A ACP OFFSET MEAS F2 F2 42 MEAS Fl ACP MEAS gt F2 4l Fl ACP WIDTH MEAS gt F gt 42 NEXT PEAK MKR F4 gt F2 ANT MEAS gt FP Fl M NORMAL CALCO FI AVG CALC gt FA 32 B BACKLT DSPL F2 53 NORMAL SAVELOAD BACK SPACE FREQ F6 F5 21 ET BAND CNTR MEAS 41 DEN MER als OFSdB REFER F5 BAND WIDTH MEAS gt Fl gt FI 41 BEREITS a OVRWR CALC gt 5 BRIGHT DSPL F3 53 PEAK SEACH MKR gt FS Fl BUZZER UTIL gt F3 59 PEAK SERCH Dee CENTERFREQ FREQFI 20 NORM CENTERFREQ gt FREQ gt F2 20 2 SERCH POWE MESSE 5 SAVEILOAD gt F6 36 CLEAR PREQ gt E6 SER 2 PROBE MEAS F5 5 Fl 48 2 1 s 2 R RATIO MEAS gt F3 gt F2 43 CODOR DEP SOM RBWALLAUTO RBW gt F3 28 CONV 40 E RBW AUTO RBW gt F2 28 D DELETE SAVELOAD gt F3 36 BBWIMANDAE RBW FI 27 DEVICE MEM SAVELOAD F4 36 REFERENCE MEAS F2 F4 42 DET SWEEP F4 29 CENTER DISP CLEAR SAVELOAD F2 38 REFERENCE MEAS F2 gt Fl 42 F5 W
25. Frequency characteristics measurement of electronic component circuit and return loss measurement 2651 50 kHz to 3 3 GHz For EMI test Applications Radiated and conducted emission measurement 2 Specifications 2 1 Performance Frequency section 2650A 2652A 2651 2658A Frequency range 50 kHz to 3 3 GHz 50 kHz to 8 5 GHz Frequency Frequency 50 3 5 1 mmm 336063 Band 1 1 616085 Band 1 1 GHz Center frequency Setting 20kHz resolution Allows rotary encoder numeric key and function key Accuracy within 30 20 2 1 dot within 30 20T kHz 1 dot frequency span 200 kHz to 10 MHz frequency span 200 kHz to 10 MHz RBW 3 kHz 23 5 RBW 3 kHz 23 5 within 60 300 kHz 1dot within 60 300T kHz1dot frequency span 20 MHz to 3 3 GHz frequency span 20 MHz to 8 5 GHz RBW 100kHz 23 5 RBW 100 kHz 23 5 T sweep time s T sweep time s RBW within 4 kHz 3 kHz 10 kHz 30 kHz frequency within 20 of RBW RBW 100 kHz 300 kHz error within 10 of RBW RBW 1 MHz 3 MHz Frequency span Setting range 0 Hz zero span 0 Hz zero span 200 kHz to 2 GHz 1 2 5 step and 200 kHz to 5 GHz 1 2 5 step and 3 3 GHz full span 8 5 GHz full span Accuracy within 3 1dot sweep time of 0 3s 23 5 C Display resolution 501dots on LCD screen 1001 dots readout via PC
26. IMG is automatically generated and these files are stored inside To change the color ofthe display before print refer to 21 Screen Control 27 X Once you disconnect then reconnect the same or a different USB flash memory drive the 2650A series will not automatically recognize the new USB drive After connecting the drive you first must press the Save Load followed by F5 key USB in order for the 2650A to see the new drive then proceed with copying data to the drive 23 4 Transferring Internal Data to USB Memory in Lump Sum When pushing after connecting USB memory removable storage to this unit the data stored in the intemal memory with SAVE LOAD function are transferred to USB memory in a lump sum During the transfer process the screen on the lower right corner will display Saving Wait until it disappears indicating that transfer is complete before continuing operation The folder 2650 SaveAll is automatically generated and these files are stored inside X Once you disconnect then reconnect the same or different USB flash memory drive the 2650A series will not automatically recognize the new USB drive After connecting the drive you must first press the Save Load key followed by F5 key USB in order for the 2650A to see the new drive then proceed as normal 23 5 USB Printer option 2650A 2651 series enables a hard copy of the screen by connecting a USB printer option to USB A plug
27. INTERNAL DATA TO USB MEMORY IN LUMP SUM 58 23 5 USB PRINTER OPTION 58 23 6 USB 59 24 UTILITY FUNCTION lt UTIL gt 60 24 1 LABEL FUNCTION 60 24 2 MENU OFF 61 24 3 BUZZER SETTING 61 24 44 SETTING THE 61 25 USB DEVICE FUNCTION 63 25 1 63 25 2 HOW TO CONNECT 63 25 3 INSTALLATION OF DRIVER 63 25 4 SAMPLE PROGRAM 63 25 5 EXPLANATION OF 64 25 6 INPUT OF FREQUENCY 73 25 7 TRANSFER OF SPECTRUM DATA
28. according to 75 Q and the offset is set to 5 7 dB insertion loss of 50 75 Q adapter Moreover the offset can be changed When the unit at marker point is set to W V V m or other it is converted correctly from dBm Be sure to attach a coaxial 50 75 Q impedance conversion adapter when selecting 75 9 7 Reference Level Setting Range for Each Unit Maw mar iU ar ara il en ds etter Available unit in measuring function dBuA n dBuV m Electric field strength measurement Magnetic field strength measurement Sume ROT MR C CES 0 SS nn s ee o SS i 153 When the reference level is set between Minimum and Minimum shifted spectrum data the spectrum of Minimum is shifted and displayed on the screen 26 When the reference level is set below Minimum S W is displayed in Amplitude axis setting values display area on the screen Calculation formula conversion from dBm e A dBuV 107 X dBm e B dBmV 47 X dBm e C dBV 13 X dBm e D dBuV m 68 8 Ax N X Gar dBm Wavelength m Gar Antenna absolute gain times e E dBuA m 107 X F dBm F Probe calibration changes depending on the frequency 9 8 Relationship Between Reference Level and ATT AMP at dBm Un oo an EX EA Internal input
29. connected to USB devices such as USB memory or printer The B plug is for USB device and is connected to USB host such as a personal computer The device function is explained in this chapter As for the host function using USB plug refer to 23 Storage and print of screen image 25 2 How to Connect When using the USB device connect with the included USB cable as illustrated i R SB B plug 25 3 Installation of Driver An instrument specified USB driver is necessary in order to control the 2650A 2651 series with a PC via USB interface and should be installed in the PC prior to using the software The driver along with instructions can be downloaded from our website Go to the Support section and select download After the downloaded file is unzipped the 2650A 2651 series is connected to a PC with the USB cable and then the power is turned on The detection wizard for the USB driver starts on the PC screen the moment the power ofthe 2650A 2651 series is turned and install it following this wizard 25 4 Sample Program Please contact usto request a sample code which demonstrates how to write a custom program using the commands in the following section 63 Test Equipment 99 Washington Street Depot Melrose MA 02176 Fax 781 665 0780 1 800 517 8431 TestEquipmentDepot com BK PRECISION D SETS ct wu Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176
30. displayed This can be set from 00 to 99 Used to set the month This can be set from 1 to 12 Used to set the date This can be set from 1 to 31 Used to set the hour It is displayed in twenty four hour format Values be set from 1 to 24 Used to set the minute 3 By pushing the values which are set from item 2 above are saved The values are updated only when this key is pushed Theclock function of the 2650A 2651 series 15 driven by a dedicated LSI and the power is supplied by a built in lithium battery 62 25 USB Device Function 25 1 Outline 2650A 2651 series is equipped with two kinds of USB connecters A and B plugs The A plug is for USB host and is connected to USB devices such as USB memory or printer The B plug is for USB device and is connected to USB host such as a personal computer The device function is explained in this chapter As for the host function using USB plug refer to 23 Storage and print of screen image 25 2 How to Connect When using the USB device connect with the included USB cable as illustrated i R SB B plug 25 3 Installation of Driver An instrument specified USB driver is necessary in order to control the 2650A 2651 series with a PC via USB interface and should be installed in the PC prior to using the software The driver along with instructions can be downloaded from our website Go to the Support section and select download Aft
31. for measurement is selected out of three methods based on the classification of definition of carrier power total power method reference level method and in band method e Mode selection and measurement By pushing MODE TOTAL BAND or PEAK mode is selected ACP TOTAL ACP BAND or ACP is displayed in MEAS area on the screen 42 The measured value and the setting parameter are displayed the lower part ofthe screen C TOTA 1000 OOMHz SPAN 2MHz RBW 100kHz 1 Jacrorsen 2 VBN 0 2 offset frequency of adjacent channel is set 2598 SCL 10dB OTs The offset is from the center frequency of the reference CALC NORMAL carrier MEAS ACP TOTAL Jaco Q te DFS 400kHz LL 40 19dBm 45 16980 DW 152kHz 1000 2 MLAS band width of adjacent channel is set 3 By REFERENCE CENTER Setting parameter the center frequency of the reference carrier is set Measuring mode Measured value F4 is only for TOTAL and BAND mode 4 By e the band width ofreference carrier 15 set F5 is only for BAND mode e Definition of Reference Carrier for each Mode TOTAL total power method This is based on the sum of power
32. in the displayed spectrum The center frequency ofthe reference carrier is set by F4 BAND in band method This is based on the sum of power in the specified bandwidth The center frequency ofthe reference carrier 1s set by F4 43 PEAK reference level method This is based on the power of peak on the screen The center frequency ofthe reference carrier is automatically set to the peak on the screen 19 3 Occupied Bandwidth Measurement lt OBW gt It is possible to measure the occupied frequency bandwidth defined as the width of points at N ofthe total power N POWER or as the width of points that are X dB lower than the peak level XdB DOWN e N POWER mode By pushing MODE N POWER mode N is selected The bandwidth of points at of the total power is measured CF OBW N96 1000 OOMHz SPAN 2MHz RBW 100kHz VBW 300kHz REF 10dBm ATT 5dB 501 1 dB SWP 0 15 DET SMPL ALC NORMAL MEAS OBW N UBJunJU 13h20m RATIO EncST 99 0 0 1 MODE NX OBW N is displayed in MEAS area on the screen The measured value is displayed at the lower right corner on the screen 1 e the percentage of the total power is set Setting range 80 0 to 99 9 Measuring mode Setting parameter 2128 2 the step size of RATIO can be to 1 or 0 1 OFF Measured va
33. kHz 8 5 GHz 2 20 MHz 2650A 2652A 2651 only 2 2658A only Setting 0f2650A 2652A 2651 2658A Setting of calibration unit Reference level 15 dBm Frequency Same as a center frequency of VBW AUTO 2650A 2652A 265 1 2658A Sweep time 15 Output power 15 dBm Detection mode SMPL However calibrate the signal generator in advance Display scale 10 dB div 78 27 4 Display Accuracy of Frequency Span Adjust the frequency of the calibration equipment so that the peaks are at the positions of f and f and measure the frequencies of f and fo Calculate from f and f the display accuracy of the frequency span fi 1 div from the left on the spectrum display 9 div from the left on the spectrum display 27 5 Linearity of Amplitude Axis Adjust the level ofthe calibration unit so that the peak 15 at the top ofthe amplitude axis Oth div and regard the point set at that time as the reference Gradually lower the output starting from the reference and measure the amplitude value of 2650A 2652A 265 1 2658A Setting of 2650A 26524 2651 2658A f Center Specifications Measurement Measurement 6 f Judgment Frequency span RBW value value 200 kHz 100 MHz 3 kHz within 180 kHz x3 1dot 10 MHz 100 MHz 100 kHz within 8 MHz 3 1 dot 20 MHz 100 MHz 300 kHz within 18 MHz 3 1401 200 MHz 100 MHz 3 MHz within 180 MHz x3
34. ldot 500 MHz 1 GHz 3 MHz within 400 MHz x3 1 dot 2 GHz 1 GHz 3 MHz within 1 8 GHz x3 1dot FULL 33 GHz 1 1 65 GHz 3 MHz within 2 64GHz x3 1 dot 2 GHz 2 4 8 GHz 3 MHz within 1 8 GHz x3 1dot 2 GHz 2 74 GHz 3 MHz within 1 8 GHz x3 l1dot FULL 8 5 GHz 2 425 GHz 3 MHz within 46 8 kHz 3 1 2650A 2652A 2651 only 2 2658A only Setting of 2650A 2652A 2651 2658A Setting of calibration unit Reference level 15 dBm Frequency Adjust it to the positions of fl VBW AUTO and fo Sweep time ls Output power 15 dBm Detection mode SMPL Display scale 10 dB div Setting of 2650A 2652A 2651 2658A Output of calibration unit Specifications M pm Judgment Display scales XdBm adjust it to the Oth div Reference 15 dBm 15 dBm 10 dB div X 10dBm Within 25 dBm 0 8 dB 1dot XdBm adjust it to the Oth div Reference 15 dBm 15 dBm BST X 5dBm Within 20 dBm 04 dB 1dot A XdBm adjust it to the Oth div Reference 15 dBm 15 dBm X2 dB Within 17 dBm 0 2 dB 1dot Setting of 2650A 26524 2651 2658A Setting of calibration unit 79 Center frequency Reference level Frequency span RBW VBW Sweep time Detection mode 100 MHz Frequency 100MEZ 15 dBm 10 MHz 3 MHz 1 MHz 1 SMPL 80 25 USB Device Function 25 1 Outline 2650A 2651 series is equipped with two kinds of USB connecters A and B plugs The A plug is for USB host and is
35. sending MEASOFF Query MEAS 9 Request measuring result Command MEASRES Example of measuring result Channel power measurement POW 25 5 dBm Adjacent channel power measurement L 47 7 dBc U 48 3 dBc Occupied bandwidth measurement C 1 45 G 20 00 k Frequency counter 2400 0000 M fthe frequency counter is not installed Invalid for F C is responded fthe level of spectrum is low and unmeasurable Non Signal is responded 65 10 Setting mode for channel power measurement Command CPMODE TOTAL BAND Example CPMODETOTAL Query CPMODE TOTAL sum of power on the screen 15 measured The sum of power in the band specified is measured 11 Setting zone center frequency for channel power measurement Command CPCNTR 0 500 screen position center 250 Example CPCNTR300 Query CPCNTR 12 Setting zone width for channel power measurement Command CPWIDTH 0 500 screen position center 250 Example CPWIDTH200 Query CPWIDTH 13 Setting mode for adjacent channel power measurement Hom ONO E TOTAL BAND PEAK TOTAL method Example ACPMODEPEAK ERD BAND in band method Query ACPMODE PEAK PEAK teference level method 14 Setting band offset for adjacent channel power measurement Command ACPOFS s
36. 15 lt 035 lt 15 35 10s 30s For 2650A 2651 and 2652A when the setting is FULLSPAN it cannot be set to 10 ms For 2658A when the setting is 5 GHz SPAN or FULLSPAN it cannot be set 10 ms 13 2 AUTO Mode By pushing the optimum sweep time is set based on the frequency span and RBW When AUTO mode is set x is displayed on the right end of SWEEP setting value display 13 3 ALL AUTO Mode By pushing the optimum RBW VBW and sweep time are set based on the frequency span When ALL AUTO mode is set x is displayed on the right end of each setting value display 13 4 Setting of Detection Mode For 2651 referto 20 EMI test 30 14 By pushing detection mode is set 5 595 SMPL J POS Positive Peak The maximum value of the sample points is detected SMPL Sample The momentary value of the sample points is detected NEG Negative Peak The minimum value ofthe sample points is detected 13 5 Setting of Trigger Source By pushing the trigger source is set INT EXT INT The sweep is automatically repeated This setting is normally used EXT When the signal over the trigger level 0 56 V is input to external trigger input the sweep starts The sweep automatically starts without an input Available only for zero span AUTO Tuning lt AUTO TUNE gt When is pushed the spectrum with the maximum level is searched within full span and then it is adjusted
37. 3 gt hours with the backlight set to the minimum level USB host adapter USB host port can be used with removable storage USB flash drives screen image Is stored as BMP format and the spectrum and the setting parameters are stored as CSV format The port conforms to USB 1 1 standards and is backwards compatible with USB 2 0 devices USB device for PC connectivity USB interface with transfer rates up to 12 Mbps maximum conform to USB 1 1 standards Accurate frequency measurement by PLL synthesizer The center frequency is accurately set by PLL Phase Locked Loop synthesizer Moreover the frequency counter factory option enables more accurate measurements ofthe frequency of a signal Average noise level 127 dBm The low average noise level 127 dBm 1 GHz provides a wide dynamic range 100 dB display dynamic range Wide dynamic range display with a display scale of 100 dB 10div at 10 dB div in the amplitude axis Easy operation with AUTO mode e Auto range operation RBW VBW and sweep time are automatically selected based on the frequency span e Autotuning operation The center frequency is adjusted to the maximum level within full span and the optimum RBW VBW and sweep time are chosen 10 Abundant functions e Measuring functions Channel power Adjacent channel power Occupied bandwidth Electric field strength Magnetic field strength and Frequency measurement Calculation functions Max hold Min hold Avera
38. 86 7DB 100M 69 2DB 1G 50 7DB 2G 44 9DB 3G 40 1DB Write the unit with a capital letter as it is case sensitive G GHz is also available 3 When the writing ends correctly is retumed 5 How to use Set the measuring function ofthe 2650A 2651 senes to electric field strength measurement mode or magnetic field strength measurement mode By pushing MEAS E F electric field strength measurement mode is set By pushing MEAS M F PROBE magnetic field strength measurement mode is set Select USER from antennas or probes on the display by pushing F1 Then the measurement by the written data will begin The written data remains even if power is turned off The measuring mode returns to a usual measurement mode when turning off power 6 About antenna gain 75 Inthe following context the antenna gain means an absolute gain When the antenna gain is a relative gain it can change into an absolute gain by adding 2 15 dB Absolute gain dBi Relative gain dBd 2 15 dB As a reference the conversion formula to electric field strength is indicated below E 480n x Pa Gax 22 E Electric field strength V m Pa Received electric power W Ga Antenna gain times Wavelength m 3 105 frequency Hz 26 Option Dipole antenna M401 to M406 Connector N P Refer to 19 4 Electric Field Strength Measurement for the details Magnetic field probe CP 2S Refer to
39. 99 Washington Street Melrose MA 02176 Phone 781 665 1400 1 800 517 8431 Toll Free 1 800 517 8431 Test Equipment Depot BK Model 2650A 2651 Series LUE s 7 Lo REFER Eg e E om m Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Before Using the Product Please note the following described on the back panel A WARNING NO OPERATOR SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL PRIOR TO USE BE FAMILIAR WITH SAFETY INSTRUCTIONS IN THE MANUAL DANGER OF EXPLOSION IF THE BATTERY IS INCORRECTLY REPLACED REPLACE ONLY WITH THE SPECIFIED BATTERY C MADE IN JAPAN For safe use 1 2 3 4 5 6 When bnormal ound abnormal mell or smoke is found stop us ing the product and remove the battery and AC adapter Never handle this product with wet hands to prevent risks of electric shock fire or damage Never use this product under lightning conditions to prevent risks of damage Neverus e any AC a dapter ot her t han s pecified or it w ill caus e da mage Connect the power cable only to three terminal outlet for protection from static electricity otherwise this product or a device under test may be damaged Never use any battery other than specified or it may damage this product Turn off the power and di
40. CALC area on the screen Refer to 4 Explanation of Screen for the details Only the last spectrum is saved 16 6 SPURIOUS FREE Mode 2658A only 1 By pushing SPRIOUS FREE mode by which the spurious response at band 1 and band 1 1 simply deleted is selected SPR is displayed in CALC area on the screen Refer to 4 Explanation of Screen for the details 33 Differing from base band at which the up conversion of input frequency is done with frequency mixer the spurious response peculiar to band 1 and band 1 is generated because the down conversion is done at those two bands About SPURIOUS FREE mode 1 SPURIOUS FREE mode is a mode by which the spurious response peculiarly caused at band 1 is simply deleted 2 SPURIOUS FREE mode is especially effective in the measurement of a stationary wave 3 If SPURIOUS FREE mode is used in measurement of a signal with level change or frequency change the phenomenon that the level goes down will occur 4 The noise level goes down little in case ofa noise changing at random In short the same phenomenon as MIN HOLD function happens How to judge SPURIOUS response at band 1 and band 1 procedure for judging SPURIOUS response at band 1 and band 1 is as follows 1 Set the center frequency to lt current setting value f gt 2 The spectrum shifting left by f is a correct spectrum but another spectrum shifting such as left by 26 left by righ
41. FAX 781 665 0780 TestEquipmentDepot com
42. IDTH F5 E EFANT MEAS F4 43 SAVE gt Fl 36 EncST FREQ H 20 SCALE 5dB SCALE 27 EMLC SAVELOAD F6 gt 50 SET MKR FREQ gt F5 20 F2 SPR FR 2 CALC F6 32 EMER 1 SAVELOAD F6 50 SWEEP AUTO SWEEP F2 29 F SWEEP MANUAL SWEEP Fl 29 F FREQCOUNT MEAS F6 49 T TG MODE 3 SWEEP F6 55 I REFER gt F6 25 TRIG SWEEP gt F5 30 K KeyST FREQ gt F3 20 Ten Key MODE FREQ F6 20 L LABEL UTIL FI 58 U UNIT REFER Fl 4 24 LOAD SAVELOAD gt F2 38 V VBWALLAUTO VBW F3 29 M MF PROBE MEAS gt F5 47 VBW AUTO VBW F2 28 MAXHLD CALC F2 31 VBW MANUAL VBW Fl 28 MEAS OFF MEAS Fl 5 F6 4l Z ZONECENTER FS FI 35 MINHLD gt 31 ZONE WIDTH MKR F5 F2 35 MARKER DELTA MKR F2 33 2651 2 2658A only 3 2652A only MARKER MKR gt 33 NORMAL 5 2 Menu Tree The following is the sequence of selection for the function menu The function menu corresponds to the function key ofF1 to F6 Function menu L dp Ese e Refer to 7 Center Frequency for details Low Set the center frequency ee Cr oo Refer to 8 Frequency Span for details D s T T ma T pe _ Set the frequency span Refer to 9 Reference Level for details ow pee pm e
43. K SEARCH 35 17 4 CHANGE UNIT OF MARKER LEVEL 36 18 SAVE LOAD SAVE LOAD 36 18 1 SELECTION OF STORAGE 37 18 2 SAVE FUNCTION 38 18 3 ABOUT FILE 38 18 4 LOAD FUNCTION 39 18 5 DELETE FUNCTION 40 18 6 PRESETTING INITIALIZATION 40 19 MEASURING FUNCTION MEAS 41 19 1 CHANNEL POWER MEASUREMNT CH POWERS 41 19 2 ADJACENT CHANNEL LEAKAGE POWER MEASUREMENT lt gt 42 19 3 OCCUPIED BANDWIDTH MEASUREMENT gt 44 19 4 ELECTRIC FIELD STRENGTH MEASUREMENT E F ANT 44 19 5 MAGNETIC FIELD STRENGTH MEASUREMENT M F PROBES 48 19 6 FREQUENCY COUNTER FREQ 50 20 TEST 2651
44. SPAN Under this condition the instrument will return to the former span when the rotary knob is rotated 3 By pushing the frequency span is set to ZERO SPAN 23 4 When is pushed and then the setting is FULL ZERO span the frequency span is returned to the last setting 5 By pushing the frequency span in function menu is set 8 1 Switching Frequency Band 2658A has three frequency bands Frequency band Measured frequency range Base band 50 kHz to 3 5 GHz Band 1 3 3 GHz to 63 GHz Band 1 6 1 GHz to 8 5 GHz The frequency band is automatically set to the appropriate band based on the center frequency and span At the span less than 200 MHz only one band is used When the setting frequency range belongs to two bands the lower band has priority The frequency connection point of two bands is fixed as follows Two bands Frequency connection point Base band and Band 1 3 4 GHz Band 1 and Band 1 6 2 GHz Note The spectrum may change a little at the frequency connection point For accurate measurement center frequency and span should be set as the measured frequency range in one band 24 9 Reference Level lt aREFER gt When REFER is pushed the following function menu is displayed 9 1 Setting of Reference Level By rotating e the reference level is changed Referto 9 7 Reference Level Setting Range for Each Unit details 9 2 Change
45. ata for the returned data 49 Request preset Command PRESET ON Operation by function key and encoder cannot be done Control the unit with USB commands OFF Operation by function key and encoder can be done USB commands are available 50 Setting remote control Command REMOTE ON OFF Example REMOTEON Query REMOTE 71 When the remote control is ON REMOTE is displayed in the operating information area on the screen Referto 4 Explanation of Screen for the details 51 Single sweep Command CAPT t sweeps only once and will be in a HOLD state 52 Setting offset level Command OFFSET 50 0 to 50 0 0 1 step unit dB Example OFFSET 25 6 Query OFFSET Offset level Offset level is set to OdB 50 75 Example IMP75 Query IMP When the input impedance is selected the offset level is set as described above 54 Clearing spectrum data and parameter Command MCLR ALL 000to 199 Example MCLRWALL For intemal memory only Cleared data All of spectrum data Spectrum data of 000 w 55 Setting character for label Command LBL The number of characters is 16 or less Example LBLsample spectrum Query LBL 56 Setting clock Command CLC Roo aabbccdd aa two last digits of year bb month 01 to 12 hour 00 to 23 dd minute 00 to 59
46. attenuator ATT and IF amplifier AMP are automatically set to the optimum values based on the reference level REFER The input attenuator cannot be set independently When the input signal level is higher than the proper level for 1st mixer s terminal harmonics distortion and spurious are generated This product is designed so that the input signal level of 1st mixer is determined to proper level based on the reference level 27 10 Display Scale lt SCALE gt When SCALE is pushed the following function menu is displayed Pw T Tow 10 1 Setting the Function Key 1 By pushing 10 dB div display scale is set 2 By pushing 5 dB div display scale is set 3 By pushing dB div display scale is set 11 Resolution Bandwidth lt RBW gt When is pushed the following function menu is displayed wm T amam 11 1 MANUAL Mode By pushing or rotating e MANUAL mode is set By rotating a RBW is set as follows 2650A 2652A 2658A 3kHz 10kHz 30kHz 100kHz 300kHz IMHz 3MHz 2651 3kHz 9kHz 230kHz 120kHz 2300kHz gt 1MHz 23MEHz 28 11 2 AUTO Mode By pushing the optimum RBW is set based on the frequency span and sweep time When AUTO mode is set x is displayed on the right end of RBW setting value display 11 3 ALL AUTO Mode By pushing optimum RBW VBW and sweep time are set based on the frequency span Wh
47. ature and humidity are small 1 OUTLINE n rrr rr rr rn nnn nnnm nn IT T nmn nnnm amens 1 1 1 PRODUCT 8 1 1 2 STANDARD 5 5 2 1 3 OPTIONAL ACCESSORIES 2 1 4 OVERVIEW OF ALL FOUR 5 3 2 SPECIFICATIONS T rn n rrr nnn 4 2 1 4 2 2 EXTERNAL 7 3 EXPLANATION OF PANEL uere nnn rrr nnn nnn nnnm nnne 8 4 EXPLANATION OF SCREEN rrr rrr nnn 11 5 FUNCTION unu rrr rrr rn nnnm nnn nena nennen 12 5 1 LIST OF FUNCTION 12 5 2 13 6 PREPARING FOR 19 6 1
48. backlight Number of dots 640 H x 480 V dots Power supply Dedicated Input 100 to 240 VAC AC adaptor Output 9 VDC 2 6 A Lithium ion battery MB400 7 4 V 5000 mAh Li Ion battery Charge function Capable of charging during power off Indicates 4 conditions with two colors LED red and green Remainder indication 5 level indicator Other 2650A 2652 2658A 2651 common Operating temperature 0 to 50 C guaranteed at 23 10 C without soft carrying case Operating humidity less than 40 C 80 guaranteed at less than 33 C 70 without soft carrying case Storage temperature 20 to 60 C less than 60 C 70 Dimensions 162 W x 71 H x 265 D mm 6 38 W x 2 80 H x 10 43 D inch excluding projections protection bumper and stand Weight approx 1 8 kg or 4 6 including battery Refer to section 22 Tracking Generator Mode for the specifications of the tracking generator model 2652A 2 2 External view Unit mm RETTET B amp K Precision reserves the right to make changes in design specification and other information without prior notice 3 Explanation of Panel SPECTRUM AHALYIER PRECISION 2650A 30 3 3 GHz 1 TFT display This is a large liquid crystal display with 640 H x 480 V dots It simultaneously displays spectrum 10div x 10 div vario
49. both ofthe radiated and conducted emission measurements and the detection is usually used in the conducted emission measurement The measurement time can be shortened by using them in the final measurement to the spectrums narrowed by the PK detection Conducted Emission Measurement The conducted emission discharged through the power supply line is measured In this measurement LISN Line Impedance Stabilization Network device is needed The connection is shown in the figure below Please refer to the manual of LISN for details ofthe connection and notes Power Supply 1 Tum on the power ofthe 2651 after the connection 2 Setthe initial parameters of conducted emission measurement by pushing SAVE LOAD gt The setting parameters are as follows Center Frequency 25 5 MHz Frequency span 50 MHz RBW 9 kHz VBW 1 MHz Sweep time 3 sec Detection mode Positive peak mode 3 Confirm whether the connection and the operation are correct by supplying the power to the EUT and measuring 4 Set the number of times of the sweep in the MAX HOLD mode by operating Marne 5 Search the frequency of disturbance noise that exceeds the AV or OP limits by using the marker function 6 Set the center frequency to the point that exceeds the limits the SPAN to 2 MHz and the SWEEP to 0 1 sec And measure the frequency accurately 51 7 Moreover measure the frequency detected the above with or AV detecti
50. compensation data for electric field strength measurement Command EFUSER Refer to 25 8 Writing of Original Compensation Data for the details Example EFUSER300M 0 0DBI 350M 1 0DBI 67 23 Setting probe for magnetic field strength measurement Command MFPROBE CP2S USER Example MFPROBECP2S Query 24 Transfer user compensation data for magnetic field streneth measurement Command MFUSER Referto 25 8 Writing of Original Compensation Data for the details Example MFUSER300M 0 0DBL350M 1 0DBI 25 Start and Stop calculation function Command CALC or OFF MAX MIN AVE OVR MAX MAXHOLD Example CALCMIN _ 22 AVR AVERAGE Eu OVER WRITE 26 Setting number of times to sweep for MAX HOLD Command MAXNO 2 4 8 16 32 64 128 256 512 1024 0 0 unlimited Example MAXNO1024 Query MAXNO 27 Setting number of times to sweep for MIN HOLD Command MINNO 2 4 8 16 32 64 128 256 512 1024 0 0 unlimited Example 512 Query MINNO 28 Setting number of times to sweep for AVERAGE Command AVENO 2 4 8 16 32 64 128 256 512 1024 0 0 unlimited Example 16 Query AVENO 29 Setting number of times to sweep for OVERWRITE Command OVWNO 2 4 8 16 32 64 128 256 512 1024 0 0 unlimited Example OVWNOI28 Query OVWNO 68 30 Setting display scale Comma
51. en ALL AUTO mode is set x is displayed on the right end of each setting value display When RBW 15 setto 3 kHz or 10 kHz the selectivity at 60 dB becomes larger than an actual value due to SSB phase noise 12 Video Bandwidth lt VBW gt When is pushed the following function menu is displayed wm 12 1 MANUAL Mode By pushing or rotating 9 MANUAL mode is set By rotating qu VBW is set as follows 100Hz 300Hz lt gt lt gt 10kHz 30kHz 9 100kHz 300kHz 1 gt 12 2 AUTO Mode By pushing optimum VBW is set based on the frequency span and sweep time When AUTO mode is set x is displayed on the right end of VBW setting value display 29 12 3 ALL AUTO Mode By pushing the optimum RBW VBW and sweep time are set based on the frequency span When ALL AUTO mode is set x is displayed on the right end of each setting value display 13 Sweep Axis Detection Mode lt SWEEP gt When SWEEP is pushed the following function menu is displayed T G MODE F6 is only for 2652A This menu is not displayed on 2650A 2651 and 2658A For the details refer to 22 Tracking Generator F5 is only displayed when an external trigger signal is detected at the trigger port 13 1 MANUAL Mode By pushing or rotating e MANUAL mode is set By rotating sweep time is set as follows 10ms 3005 gt 0
52. ency decreases in the set step size 2 When is pushed the center frequency increases in the set step size 3 Setting step size When is pushed the step size is changed according to the following AUTO gt 100 7 10MHz 100kHz 20kHz AUTO The step size is 1 10 ofthe frequency span However only for 500 kHz frequency span the step size is set to 50 kHz If the frequency span is less than 500 kHz the step size is set to 20 kHz AUTO is recommended for normal use 7 2 Setting with encoder 1 By rotating e the center frequency is changed in the set step size 2 Setting step size When is pushed the step size is changed according to the following r 010 100MHz 10MHz 1MHz 100kHz 20kHz AUTO The step size is 1 500 ofthe frequency span However if the frequency span is less than 5 MEZ the step size is set to 20 KHz AUTO is recommended for normal use 21 7 3 Setting with numeric key 1 When is pushed the following function menu is displayed 23 n correspond to GHz lt MHz gt and lt gt to lt CLEAR gt and lt BACK SPACE gt Changing the center frequency by encoder is available in Ten Key Mode 3 The center frequency can be entered directly according to Numeric Key Mapping Diagram as follows Numeric Key Mapping Diagram AUTO MEAS 1 2 3 4 5 HOLD SAVE 6 7 8 9 0 4 The cente
53. er the downloaded file is unzipped the 2650A 2651 series is connected to a PC with the USB cable and then the power is turned on The detection wizard for the USB driver starts on the PC screen the moment the power ofthe 2650A 2651 series is turned and install it following this wizard 25 4 Sample Program Please contact usto request a sample code which demonstrates how to write a custom program using the commands in the following se2658A_thumb gifction 63 25 5 Explanation of Command CR OD HEX LF OA HEX is added to the end of every command When the command is sent from PC 2650A 2652A 2651 and 2658A return some responses which include CR LF ERR CR LF or response to command CR By inputting 2 instead of for each command the current setting parameters will be queried and a response ofthe value will be received by the PC Except for Request command and the command for inputting corrected data 1 Setting center frequency Command FREQ Refer to 25 6 Input of frequency Example FREQ1 235G Query FREQ 2 Request set marker Command FREQSETMK The center frequency is set according to the frequency of current marker position 3 Setting frequency span Command SPAN 2650A 2652A 2651 ZERO 200K 500K 1M 2M 5M 10M 20M 50M 100M 200M 500M 1G 2G FULL unit Hz 2658
54. follows the normalizing function is automatically turned off The span is expanded The center frequency is changed beyond the range normalized When SPAN is changed from FULL SPAN according to center frequency it is turned off The magnetic field strength measurement is selected The AUTO tuning is executed The power supply is off The presetting is executed When the scale is 2 dB or 5 dB the normalizing function does not operate correctly ifthe spectrum level is not displayed at a proper position on the screen 56 23 Storage Print Screen Image lt gt The following function menu is displayed when COPY is pushed 23 1 Selection of Image Area When is pushed the image area to be stored or printed can be selected WHOLE the whole screen image is stored or printed SPECT only the spectrum display area is stored or printed 23 2 Print on Printer When pushing after connecting the printer option the area selected in 23 1 is printed 23 3 Storage into USB Memory When pushing after connecting USB memory removable storage to this unit the area selected 23 1 is stored in USB memory in BMP bit map format As for the file name the number 15 automatically set and incremented in the form 2650 _001 In the case when some characters are written in the label area the file name will consist of it and the number put automatically such as LABELOOI bmp The folder 2650
55. ging Over write Marker measurement and peak search function Save Load function Hard copy with printer 11 PC Software The included PC software controls all four models ofthe 2650A 2651 series via The software emulates the front panel keys and supports transfer of 1001 point trace data from the analyzer to the Screen images can be stored in BMP format and the spectrum data in CSV format stores frequency and level 12 Options There are many options available such as dipole antennas magnetic field probes and USB printer 1 2 Standard accessories 1 AC adaptor MA400 2 Carrying case 2650 3 Accessory pouch 4 User manual 5 PC software and USB cable 6 Lithium Ion battery MB400 1 3 Optional accessories 1 Dipole antennas M401 M402 M403 M404 M405 M406 2 Magnetic field probe PR 26M with a dedicated double shielded coaxial cable 3 Printer PT2650A with AC adaptor 4pcs of AA batteries one roll paper 4 Roll paper PX2650A for 2650 printer with 10 rolls 1 4 Overview of all four models Model Contents 2650A 50 kHz to 3 3 GHz Applications Cellular phone 2 4 GHz wireless LAN 2 5 GHz WiMAX RF ID Broadcasting 2658A 50 kHz to 8 5 GHz Covering most ofthe wireless communication frequency spectrum Applications 5 GHz wireless LAN 3 5 5 8 GHz WiMAX Maintenance of wireless base station 2652A 50 kHz to 3 3 GHz With 5 MHz to 3 3 GHz tracking generator Applications
56. ith SPECT The current spectrum on the screen is stored PARAM The setting parameters are stored BOTH The spectrum and setting parameters are stored as one file The selected key will look pushed in on the display 3 When is pushed SAVE is executed The data is stored based on the file name displayed in the active area refer to 4 Explanation of screen As for the file name refer to 18 3 About File Name Up to 200 files can be stored in the built in memory Up to 1000 files can be stored in USB memory 4 Pushing will retum to the former menu 18 3 About File Name 1 The file name is attached to the file stored using this function as follows LABEL SP001 csv 0 QO 1 This is the label entered from the label function Refer to 24 1 Label function Note Symbols and spaces are not recognized as a file name 2 S The object stored is the spectrum SPECT P The object stored is the setting parameters PARAM SP The object stored is both of spectrum and setting parameters BOTH 3 The consecutive three digit number from 000 is automatically attached if 1 and 2 are same 4 This is the extension showing CSV format and is automatically attached 38 2 If the label is not named 2650 will be the first part of the file name instead For example 2650 SPOOI csv 3 About file name the time of storage When SAVE 15 selected the file name is displayed in the active area f
57. ls 39 When PARAM is selected setting parameters are loaded When the spectrum is loaded the 2650A series enters HOLD state and the current spectrum disappears replacing it with the loaded spectrum on main display When is pushed right after the loaded spectrum a current spectrum are displayed together 4 When is pushed the loaded spectrum can be cleared on display 18 5 Delete Function When is pushed DELETE menu is displayed as follows sassa 1 The filename to be deleted is selected from the specified device with T and the active area will indicate this name As for the number of search steps it is the same as 18 4 Load Function 2 When is pushed DELETE is executed The file displayed in the active area is deleted at this time 3 Repeat step 1 and 2 above to delete more than one file 18 6 Presetting Initialization For 2651 refer to 20 EMI test When is pushed the setting parameters are reset to the preset values as shown below Ttems Parameters Center frequency 1 GHz Frequency span 20 MHz Reference level 10 dBm Offset 0 0 dB 500 Sweep time 30 ms Detection mode Sample mode SMPL W 100 kHz 30 kHz Display scale 10 dB div 40 19 Measuring Function lt MEAS gt When is pushed the following function menu is displayed 4 EEd ER CHPOWER Channel power measurement Adjacent channel leakage power measurement OBW
58. lue XdB DOWN mode By pushing MODE XdB DOWN mode X dB is selected The bandwidth of points that are X dB lower than the peak level is measured a tt OBW 1000 00MHz SPAN 2MHz 100kHz VBW 300kHz 10dBm AIT 2598 OBW XdB is displayed in MEAS area on the screen The measured value is displayed at the lower right corner on the screen SCL 10dB SWP 0 Ts DET SMPL NORMAL MEAS OBW 8Jun30 13h20m 0 MODE X dB EncST XdB 30 dB 0 1 1 the downlevel from the peak level is set Setting range 0 1 to 99 0dB Measuringmode Setting parameter 2 By the step size of XdB can be set to 1dB or 0 1dB MEAS OFF Measured value 19 4 Electric Field Strength Measurement E F ANT Connecting a dipole antenna option to the RF input enables the measurement of the electric field strength Other than the optional antenna is also available by creating the original compensation data Refer to 25 8 Wnting of Original Compensation Data for the details 44 Antenna connection Measurement environment Antenna M401 M402 M403 M404 Connect to L 405 RF INPUT M406 i 2650A series Tum the back to the signal source Specifications of dipole antenna antenna gain and VSWR are specified at the center of frequency range 7 5 x280mm 7
59. mple PEAKZONE Query PEAK 41 Request peak search Command PKSEARCH 01 02 03 04 05 06 The maximum peak on the screen 07 08 09 10 11 The 2nd peak on the screen Example The 11th peak on the screen 42 Setting zone center frequency for peak search Command Refer to 25 6 Input of Frequency Example PKCNTR1 345G Query PKCNTR 43 Setting zone width for peak search Command PRWIDTH Refer to 25 6 Input of Frequency Example PKWIDTH256M Query PKWIDTH 70 44 Setting unit of marker Command CONV DBM W DBV V DBUVM VM Example CONVDBUVM Query CONV 45 Request print on printer Command PRTSIW USB printer connected to USB A plug prints Command Transferred spectrum 46 Request for transfer of spectrum Command SRS CURR 000 to 199 Example SRSCURR number of the commands is given to the saved file Refer to 25 7 Transfer of Spectrum Data for the returned data 47 Request for transfer of spectrum in USB memory Command SRSU 000 to 199 000 Spectrum data of 000 in USB memory Example SRSU111 The number of the command is given to the saved file Refer to 25 7 Transfer of Spectrum Data for the returned data 48 Request for transfer of spectrum data of 1001 points Command SRSF Refer to 25 7 Transfer of Spectrum D
60. n CF 1000 OOMHz SPAN MHz RBW 100kHz VBW 300kHz REF 1dBm 16dB SCL 10 dB SWP 0 15 DET SMPL The measured value is displayed at the lower night corner on the screen CALC NORMAL MEAS CP TOTAL 8Jun30 13h10m C 1000 OOMHz MODE TOTAL Measuring Mode Measured Value BAND mode By pushing MODE BAND mode is selected sum of power in the band specified by band center and bandwidth 1s measured M ind SEEE CP BAND is displayed in MEAS area on the screen 5 2 PAN The measured value and the setting parameter VBW 300kHz ur displayed atthe lower part ofthe screen 1698 SCL 1 dB SWP 0 1s BAND ENTER o 3 DET SMPL the band center is set MEAS m BAD 2 By BAND WIDTH e 13hiUm 6 1000 UUMHz W 40UkHiz the band width is set BAND CENTER WIDTH OFF Measuring Mode Measured Value Setting parameter 19 2 Adjacent Channel Leakage Power Measurement lt ACP gt The adjacent channel leakage power is measured as the ratio of power in the range specified by offset frequency and bandwidth to carrier power Both leakage power at the upper and lower side are measured Furthermore the method
61. n 1 0 dB 190 100 MHz to 8 5 GHz Input impedance 500 Input VSWR less than 2 0 Input attenuator Operating 0 to 25 dB 1 dB step coupled with reference level range Switching 30 6 dB 22100 MHz error RBW switching error 0 6 dB Display resolution 381 dots 10div vertical Scale 10 dB div 5 dB div 2 dB div Display scale Accuracy 502 48 1400 2 48 0 4 dB 1dot 5 dB 0 8 4 0 104 1 8 dB 1dot 83 dB Input damage level 27 dBm CW average power 25 VDC Sweep section 2650A 2652A 2651 2658A Sweep time Setting range 10 ms to 30s and AUTO 10 ms to 30s and AUTO frequency span 0 to 2 GHz frequency span 0 to 2 GHz 30 ms to 30 sand AUTO 30 ms to 30 sand AUTO frequency span full span frequency span 5 GHz full span 1 3 step 1 3 step Accuracy Within 0 1 1dot Within 0 1 t1dot frequency span 0 to 2GHz frequency span 0 to SGHz within 1 5 1dot full span within 2 5 1dot full span Trigger Trigger mode AUTO Available only for zero span Trigger source Internal and External External trigger Input voltage range 1 to 10 Vp p Frequency range DC to 5 MHz Input coupling DC coupling Trigger level approx 0 56 V fix Input RC approx 10 less than 15 pF Input damage level 50 V DC AC peak Input connector 5 7 Detection mode Positive peak Negative peak Sample QP and AV for model 2651 only Function 2650A 2652A 2658A 2651 common
62. nd SCALE Command Display scale 2 5 10 i Example SCALE10 Query SCALE 31 Setting sweep time Command SWEEP O0M 30M 0 1S 03S 1S 3S 10S 30S AUTO ALL Example SWEEPO 1S Query SWEEP 32 Setting detection mode Command DET Positive peak mode POS NEG SMP Negative peak mode Example DETPOS Sample mode QP mode only for MSA438E Query DET AVG mode only for MSA438E E Command 2 Example TRGEXT Query TRG 34 Request AUTOTUNE Command AUTO The response is returned after tuning 35 Hold Run function Command HOLD Command RUN 36 Request marker information Command MKRRES Example of returned data 1 42G 15dBm Query MKRRES 69 37 Seting marker mode Command NORM Normal marker NORM DELTA DELTA Example MKRDELTA 38 Setting marker position by frequency The position of active marker is set by frequency Command NORMMKR Refer to 25 6 Input of Frequency Query NORMMKR 39 Setting marker position by number of points on horizontal axis The position of active marker is set by number of points on horizontal axis Command MKRPOSI 0 to 500 0 far left 500 far right Example MKRPOSI40 40 Setting peak search mode Command Peak search mode Command PEAK NORM Normal peak search NORM ZONE ZONE Zone peak search Exa
63. nsure to protect any data or measurements promptly by saving into memory to prevent data lost if the unit shuts down 19 6 3 Battery Charge When the unit is powered off and connected to AC adaptor MA400 the battery will be charged The charging conditions are indicated by two colors LED and they correspond to the table below Charging condition ColorofLED Good usage of battery On Charge Red Completion of Charge Green Remove the battery when unit is connected to the AC adaptor No battery Green Otherwise battery life will be shortened Abnormal Blinking Red XLED is turned off at power on The abnormal condition means that the charging time is more than the time expected or the battery voltage is too high Note The battery charges only when the unit is turned off and the AC adapter connected It is not possible to charge the batteries while the unit is turned on Please charge batteries with ambient temperature in the range of 0 to 40 Caution Misuse ofthe battery may cause leaks abnormal heat fire or explosion For safe use please observe the following precautions fully Do not short circuit the terminal ofthe removed battery Do not cause an impacted shock due to throwing dropping or striking Do not disassemble or remodel the battery Do not throw the battery into a fire or any sources with heat Do not leave the battery in a place with high temperature D
64. o change the character tum the encoder To delete press F5 again Characters previously entered be deleted by consecutively pushing F5 5 When finished press to exit the label menu 24 2 Menu Off By pushing the display ofthe function menu and the active area can be turned off temporarily 24 3 Buzzer Setting By pushing the buzzer sound can be set to beep when keys are pressed or rotary encoder is turned The following three options are selectable by pressing F3 until the desired option is displayed OFF The buzzer is off ALARM The buzzer will sound off when an incorrect setting 15 made ALWAYS buzzer will sound whenever a key or the rotary encoder 15 operated gt lt When the battery voltage becomes low during battery operation the buzzer will sound Even if OFF is selected it will sound 24 4 Setting the Clock When is pushed the following function menu is displayed pm pe pm DR The year month day and time are displayed below the screen Refer to 4 Explanation of Screen Set the year month day and time when 2650A 2651 series is used for the first time The time information is updated even ifthe power is turned off 61 1 Byrotating the values for a selected parameter choosen by pressing any button between F1 and F5 can be changed 2 Used to set the year Two last digits of the year are
65. o not wet the terminal ofthe battery Do not cool the battery and do not charge it in cold outdoor conditions It decreases performance and battery life Do not charge the battery in any other way except according to specifications When you keep the battery please keep it in a cool dark environment where humidity is low Moreover please keep it out of reach from children If the battery remains not used for a long time it might decrease its charges Please exchange the battery for a new one MB400 when operating time extremely shortens 6 4 Installation of Battery To install the battery please turn off the power and unplug the AC adaptor ifin use Remove the battery cover on the back ofthe unit by first pressing down with light pressure then slide towards the direction of the arrow as shown in Fig 1 Next put the battery as shown in Fig 2 Move it in the direction of the arrow shown in Fig 3 until it locks in Use only the 400 battery as specified Otherwise the unit may cause problems or malfunction 2 o J i Fig 2 Fig 3 7 Center Frequency FREQ When is pushed the following function menu is displayed Center frequency setting range 0 to 3 3 GHz for 2650A 2652A 265 1 0 to 8 5 GHz for 2658A The center frequency may shift for a while up to 10 sec after setting 15 changed 7 1 Setting with step keys F1 F2 1 When is pushed the center frequ
66. of Unit of Amplitude Axis When is pushed the unit is set as follows m dBuV gt 7 9 3 Setting of Step Size of Reference Level By pushing the step size is changed to 10 dB or 1 dB 9 4 On Off Setting of Offset By pushing the offer set ON OFF is changed 9 5 Setting of Offset Level 1 By operating Co the offset of reference level is set When external amplifier or attenuator is used the display level can be matched by the offset The setting range is 50 0 to 50 0 dB The reference level is displayed including the offset f the offset is set OFST is displayed in Amplitude axis setting values display area Furthermore the level at the marker point is displayed including the offset 25 Ifthe unit is changed to dBuV dBmV dBV or dBm the offset is automatically changed 2 By pushing the step size of offset is changed 10 dB 1 dB 0 1 dB 9 6 of Input Impedance By pushing the input compensation can be set to 50 Q no offset or 75 Q 5 6 dB offset compensation The reference level is adjusted automatically based on the input impedance selection When the input impedance is set to 75 the reference level is displayed including offset and conversion of 75Q For the amplitude reading to be correct a coaxial 50 75 impedance conversion adapter must be connected to the RF input When 75 Q 15 selected values in Amplitude axis setting values display area will change
67. ollowing according to the above labeling convention When SAVE is executed as it is the data is stored with that file name If the file exists in the storage device and is rotated left before SAVE is executed those file names are displayed one by one If SAVE is executed with an existing file name displayed the data is overwritten on it 18 4 Load Function When is pushed LOAD menu is displayed as follows 1 When e 15 rotated rieht or left the stored file name 15 displayed one by one from the specified storage device the active area as follows 1 USB LOAD 2 2650A_SP012 csv 3 12 1 The storage device in which the file is stored USB USB memory MEM built in memory 2 The file name selected 3 Number attached to file The files in the specified folder of the storage device are sorted in alphabetical order and this shows that number 2 Tosearch files press e and the file will be displayed order of the number attached to it In the active area The search steps can be adjusted by pressing to search in steps of 10 files at a time or pressing to search in steps of 100 files at a time Select it according to the number of stored files 3 When is pushed LOAD is executed When SPECT is selected a spectrum waveform is loaded The setting parameters loaded spectrum are displayed in the setting parameters display area Refer to 4 Explanation of screen for detai
68. on then the SPAN 15 200 kHz and the SWEEP is 10 sec Radiated Emission Measurement The electric field strength of disturbance noise that EUT radiates in the air is measured 7 2651 1 the compensation data ofthe antenna beforehand Refer to 25 8 Writing original compensation data for the details 2 Tum on the power ofthe 2651 after connection 3 Set the initial parameters of radiated emission measurement by pushing SAVELOAD The setting parameters are as follows Center Frequency 515 MHz Frequency span 1 GHz RBW 120 kHz VBW 1 MHz Sweep time 0 3 sec Detection mode Positive peak mode 4 Confirm whether the connection and the operation are correct by supplying the power to the EUT and measuring 5 Set the number of times of the sweep in the MAX HOLD mode by operating 9 6 Search the frequency of disturbance noise that exceeds the limits by using the marker function 7 Set the center frequency to the point that exceeds the limits the SPAN to 50MHz and the SWEEP to 30 msec And measure the frequency accurately 8 Moreover measure the frequency detected in the above with QP detection then the SPAN is IMHz and the SWEEP is 30 sec 52 standards selected Frequency Quasi Peak Average CISPR22 class 0 15 MHz to 0 50 MHz 79 dBuV Limits of conducted disturbance at 0 50 MHz to 30 MHz 73 dBuV mains ports
69. ption 48 Magnetic field probe connection The tip ofthe magnetic field probe CP 2S is made of glass ceramic board Take care when handling the probe even though the strength ofthe glass ceramic board is durable under normal operation Specifications of magnetic field probe 25 Refer to the operating manual of CP 2S for the details Heqemymne Heqemymne l10MHzt 3GHz MHzto3 GHz approx 25 mm Space resolution 6 dB depending on objects Reference level setting range maximum 160 to 203 dBuA m Reference level setting range minimum except for the minimum value in screen shift 110to 153 dBuA m approx dB probe simple substanc Mode Selection and Measurement By pushing PROBE CP 2S or USER mode is selected The measurement starts as soon as the probe is selected M F CP2S or M F USER is displayed in MEAS area on the screen USER is the original compensation data which is created by the user Refer to 25 8 Writing of Original Compensation Data for the details The unit of amplitude axis automatically changes into dBuA m A spectrum other than the frequency range of the probe is not displayed 49 19 6 Frequency Counter FREQ COUNT This function currently not supported 20 EMI Test 2651 20 1 Additional Function for EMI Test Detection mode Refer to 13 4 Setting of Detection mode By pushing
70. r E is determined by inputting the unit of frequency To enter the unit and are available dqr n and E are also available Any figures below the setting resolution 20 kHz will be truncated 5 Change of setting The setting can be changed before pushing the unit key The setting values cleared The last input digit is deleted 22 6 Cancel of Ten Key Mode By pushing Or unit will return to function menu 7 4 According to Marker Position When is pushed the center frequency 15 set according to the frequency of current marker position Any figures below the setting resolution 20 kHz will be truncated When the marker 15 not displayed this operation 15 invalid The menu option disappears 8 Frequency Span SPAN When is pushed the following function menu is displayed By operating 9 frequency span is set 2650A 2652A 2651 By rotating e the frequency span 15 changed in the specified step size as follows ZERO 200k 500k lt gt IM 2 5 10M 20M 50 100M 200M 500 1G 2 gt FULL 3 3 GHz 2658A 1 By rotating e frequency span is changed in the specified step size as follows ZERO 200k 500k IM gt 2 5M 10 gt 20M 50M 100 200 500M lt gt 1G 2G 5G FULL 8 5 GHz 2 By pushing frequency span is setto FULL
71. sconnect the AC adapter before removing the battery out of the battery compartment Be sure to charge the battery as specified in the instructions in this manual Moreover an explosion fire or smoke may occur if battery is handled improperly Please read the notes for handling the battery clock function The time information is set at Japan standard time Set the year month day and time when the 26504 series is used for the first time Refer to 24 4 Setting the clock for the details assurance Warranty If the defect by our responsibility occurs within one year after delivered it shall be repaired free of charge However this warranty does not cover such defect that 1 is caused by a fire or natural disasters 2 15 caused by inappropriate handling such as dropping while moving the unit delivered 3 is caused by handling in contradiction to usage or precautions described in the operating manual 4 is caused by modification or misuse We will not be responsible for direct or indirect damage caused by use or defect of this product Refer to the end of this manual for details Warm up time Warm up the product for at least ten minutes after turning on the power in order to stabilize the internal circuit Precautions for storage 1 Avoid direct sunlight or dust 2 Store this unit in a place where temperature is between 20 to 60 humidity less than 60 C 70 RH and variations in temper
72. surement is selected A M is only displayed when the magnetic field strength measurement is selected Each unit change as described above has their own sub menu for more unit display options They are shown below W mW uW nW pW fW V V mV nV V m V m mV m uV m nV m m A m mA m pA m nA m 18 Save Load lt SAVE LOAD gt When is pushed SAVE LOAD menu is displayed as follows 36 18 1 Selection of Storage Device 1 When is pushed the built in flash memory is selected as a storage device When is pushed the external USB memory is selected as a storage device nstall the USB memory in USB A plug on the right side firmly Refer to the figure below Once you disconnect then reconnect the same or a different USB flash memory drive the 2650A series will not automatically recognize the new USB drive After connecting the drive you must first press the Save Load key followed by F5 key USB in order for the 2650A to see the new drive then proceed as described below 37 18 2 Save Function When is pushed SAVE menu is displayed as follows 1 In this function the data is stored in the built in memory or USB memory by CSV format The data stored in USB memory can be used with a personal computer as a CSV file 2650 folder will automatically be created and the data will be stored in it as a file 2 The object to be stored is selected w
73. t Use Co to set the brightness It can be set in the range of 0 to 100 22 Tracking Generator Mode 2652A 22 1 Specification of T G Function Item Specification Frequency range 5 MHz to 3 3 GHz Output Level 10 dBm 1 dB 1 GHz Fixed value Output flatness 1 5 dB Output impedance 500 Output VSWR Less than 2 0 Output connector N J connector 54 22 2 Description I O Connector 1 Input connector N J connector Input for an external signal Make sure that the total power of input signals does not exceed 27 dBm 2 Output connector N J connector It is an output terminal of Tracking Generator Please set to TG OFF to prevent the influence of the leak from the Tracking Generator in case of disuse of the T G function 22 3 ON OFF Switching of T G Function When is pushed the following function menu is display 1 When is pushed T G MODE is set 55 2 Each time is pressed T G output is alternately switched to ON or OFF 22 4 Normalizing Function NORM ON The input level is made flat to the red line on the screen 1 When SWEEP is pushed same function menu as the previous item is displayed 2 When is pushed TG MODE is set 3 Eachtime is pushed the normalizing function is alternately switched to ON or OFF If the normalizing function is switched to ON NORM ON is displayed on the screen fthe setting is changed as
74. t by f right by 2f or right by 3f is a spurious response f should be changed according to SPAN for easy judgment For reference SPAN 10 to 50 corresponding to 0 2 to 1 div Example judging a spectrum displayed at 6 92 GHz setting center frequency 6 92 GHz and SPAN 500 MHz 1 Set the center frequency to lt 6 92 GHz 500 MHz 25 gt 6 94GHz 2 A spectrum at 6 92 GHz shifting left by f from 6 94 GHz is correct A spectrum at 6 98 GHz shifting right by 2f from 6 94 GHz is spurious Additionally a spurious response mentioned above shifting right by 2f at band 1 is largest and other spurious response are about 25 to 50 dB smaller than that 17 Marker amp Peak Search lt MKR gt When is pushed the following function menu is displayed e Main menu of marker function 34 17 1 Movement and Basic Function of Marker 1 Byrotating 9 the marker moves 2 By pushing normal marker mode is selected and the marker operates as an independent marker The frequency and the level at the marker point are displayed in the lower right side 3 When is pushed the delta marker mode 15 selected and the reference marker and the active marker are displayed The frequency and the level at the marker points are displayed as follows Frequency freq at active marker freq at reference marker Level level at active marker level at reference marker 4 By pushing the marker is erased marker off
75. t channel leakage power Occupied frequency bandwidth Electric field strength and Magnetic field strength measurement 10 Calculation function key Available for Max hold Min hold Average and Over write 11 Display scale key The display scale of amplitude axis can be selected as 2 dB div 5 dB div or 10 dB div with this key 12 Sweep key The sweep time can be set in the range from 10 ms to 30 s or AUTO This key can also select the detection mode 13 Hold Run key Used to hold or run measurements 14 Marker amp Peak search key This key 1s used for setting marker or peak search 15 Save Load key Used for saving or loading a spectrum or settings parameters 16 Copy key This key allows the screen image to be printed on USB printer option or stored in USB memory 17 UTIL key Used for setting label entry clock and buzzer 18 Display control key Used for setting color backlight ON OFF or brightness of backlight 19 Rotary encoder This is used for adjusting settings and parameters 20 Power switch This is for power ON or OFF 21 Input connector N J connector 22 Indicator for charging condition Two color LED indicates the charging conditions of battery 23 Input connector for DC power source Connect AC adaptor 400 24 USB A plug For connecting USB printer option or USB memory 25 USB B plug For interfacing with a PC 4 Explanation of Screen Frequency Axis Setting Values Displa
76. to the center of the screen and the optimum setting parameters are set Set the frequency span before setting AUTO tuning There is no function menu displayed for this mode Auto tuning will execute upon pushing the key The auto tuning does not operate normally in the following conditions 1 2 3 4 15 Zero span Full span The signal level 15 40 dBm or lower The signal frequency is 50 MHz or lower Hold Run lt HOLD RUN gt By pushing the sweep is switched to halt and continuance There is no function menu displayed for this mode 31 16 Calculation Function lt CALC gt When CALC is pushed the following function menu is displayed sese Es eee By pushing the sweep is restarted By pushing the calculation function is selected By rotating Qu the number of times ofthe sweep can be set 16 1 NORMAL Mode 1 When is pushed the normal mode is set The calculation is not performed in this mode The number of times ofthe sweep is infinite This mode 15 normally used When this mode is set NORMAL is displayed in the CALC area on the screen Refer to 4 Explanation of Screen for the details 16 2 MAX HOLD Mode 1 Bythe operation of the number of times of the sweep in the MAX HOLD mode is set 2 The update spectrum data is compared with the data left last time at each point and the larger one is retained and displayed 2
77. us setting parameters and measured values 2 Function key F1 to F6 function can change according to the operation key 3 Center frequency key The center frequency is set with this key The setting range is 0 to 3 3 GHz for 2650A 2652A and 2651 0 to 8 5 GHz for 2658 The setting resolution is 20 kHz 4 Frequency span key The frequency span is set with this key For 2650A 2652A and 2651 it is set in the range from 200 kHz to 2 GHz ZERO SPAN or FULL SPAN 3 3 GHz For 26584 it is set in the range from 200 kHz to 5 GHz ZERO SPAN or FULL SPAN 8 5 GHz 5 Reference level key The reference level is set with this key It can be set in the range from 10 dBm to 60 dBm by 1 dB step 6 Resolution bandwidth key The resolution bandwidth is set with this key It can be set in the range from 3 kHz to 3 MHz and to AUTO 7 Video bandwidth key The video bandwidth is set with this key It can be set in the range from 100 Hz to 1 MHz and to AUTO 8 AUTO tuning key When pushing this key the spectrum with the maximum level is searched within full span 3 3 GHz 2650A 2652A 2651 and 8 5 GHz 2658A and then it is adjusted to the center of the screen and the optimum setting parameters are set In the case when in zero span full span input signal level lower than 40 dBm and input frequency lower than 50 MEZ this function will not work correctly 9 Measuring function key Available for Channel power Adjacen
78. w Reference level Specifications Measurement value Judement 10dBm within 1 4 dB I dot 0dBm within 1 4 dB 1dot 10 dBm within 1 4 dB 1dot 15 dBm within 0 8 dB 1dot 20 dBm within 1 4 dB 1dot 30 dBm within 1 4 dB 1dot 40 dBm within 1 4 dB 1dot Input attenuator switching error is included at the reference level other than 15 dBm Setting of 2650A 2652A 2651 2658A Center frequency Frequency span RBW VBW Sweep time Detection mode Display scale 100 MHz 10 MHz 3 MHz 1 MHz 18 SMPL 2 dB div Setting of calibration unit Frequency 100 MHz Output power Adjust it so that the indicated value of 2650A 2652A 265 1 2658A is at the Oth div from the top 27 3 Display Accuracy of Center Frequency Measure the frequency with the peak search function of 2650A 2652A 2651 2658A Setting of 2650A 2652A 2651 2658A Measurement Judgment Specifications valle Frequency Center frequency Frequency span RBW n Center span frequency 100 MHz 200kHz 3kHz within 50 kHz 1dot 100 MHz 200 kHz 100 2 10 MHz 30kHz RBW 6 100 MHz 10 MHz 100 MHz 20 MHz 100 kHz 100 MHz 20 MHz 100 MHz 200 MHz 100 kHz 100 MHz 200 MHz 1 GHz 20 MHz 100 kHz oe 1 GHz 20 MHz 2 GHz 20 MHz 100 kHz l 2 2GHz 20MHz 33 GHz 1 20 MHz 100 kHz 3 3 GHz 1 20 MHz 6 1 GHz 2 20 MHz 100 kHz 6 1 GHz 2 20 MHz 8 5 GHz 2 20 MHz 100
79. with the included USB cable 58 Turn on the power of the 2650A 2651 sertes unit first After that turn on the power of USB printer Otherwise it will not work correctly 23 6 USB Memory USB memory can be used as a removable storage 59 24 Utility Function lt UTIL gt When is pushed the following function menu is displayed e as Label Function Enters the label menu for customizing filename Menu Off Tums off menu and active area display Buzzer Setting Sets the condition of the buzzer sound Clock Function Setting Sets the built in clock 24 1 Label Function When is pushed the following function menu is displayed 1 The kind of character to be written 15 selected with to 012 0109 numeral atoz lower case alphabet ABC A to Z upper case alphabet Special characters 1 amp lt gt _ Note Certain special characters may not be recognized or valid a filename 2 A block cursor will be displayed in the label display area By rotating e a number small letter alphabet capital letter alphabet or special character will be indicated on the cursor position Tum the knob until the desired label character Is displayed 3 When is pushed the cursor position will move nght by one character And the previous character is set 60 4 When is pushed the cursor position will move left by one character T
80. y Center frequency Frequency span Resolution bandwidth Video Amplitude Axis Setting Values Display Reference level Input attenuator Display scale Sweep Axis Setting i CF 980 00 SPAN Values Display Sweep time REF Detection mode 35dB Calculation function display Measuring function display Operating Information display T Loaded spectrum information display SWP 0 CALC AVG MEAS Holding CF SP This is also used as a display for set values when the measuring function is used UNCAL Display 198 SCL 1DdB 154 9 1MHz 35dBm 13h10m SPECTRUM Active Area Display Remaining Battery Spectrum Display Display 10div x 10 div MHz USB LOAD 5 352 8 5 098 cs 7 RBW 100kHz VBW 100kHz m pi VALL p e ipla ihv A vl Aule 1 DET 05 15 52 LOAD EXECUTE J OBJECT PARAM BOTH RETURN Upper Label Display Measured Values display Lower Clock Display UNCAL is displayed when a normal measurement cannot be done due to sweep rate being too fast In such cases slowing down the sweep rate will change this indicator 11 5 Function Menu 5 1 List of Function Menu The function menu is shown in the table below For descriptions of each function see their respective page
81. z to 6000 MHz 74 dBuV m 54 dBuV m FCC part15 subpartB class 0 15 MHz to 0 50 MHz 79 dBuV 66 dBuV Limits of conducted disturbance at 0 50 MHz to 30 MHz 73 dBuV 60 dBuV mains ports FCC part15 subpartB class B 0 15 MHz to 0 50 MHz 66 to 56 dBuV 56to46dBuV Decreasing linearly with the logarithm of the Limits of conducted disturbance at 0 50 MHz to 5 MHz 56 dBuV 46 dBuV frequency mains ports 5 MHz to 30 MHz 60 dBuV 50 dBuV FCC part15 subpartB class 30 MHz to 88 MHz 39 1 dBuV m Measurement distance 10 Limits of radiated disturbance 88 MHz to 216 MHz 43 5 dBuV m 216 MHz to 960 MHz 464 dBuV m over 960 MHz 49 5 dBuV m part15 subpartB class B 30 MHz to 88 MHz 40 dBuV m Measurement distance 3 Limits of radiated disturbance 88 MHzto216 MHz 43 5 dBuV m 216 MHz to 960 MHz 46 dBuV m over 960 MHz 54 dBuV m Note Information provided in this table serves as a reference only B amp K Precision is not liable for any damages due to any mistakes in the table 21 Screen Control lt DSPL gt When is pushed the following function menu is displayed 53 21 1 Setting Screen Display Color When is pushed the color of screen display can be selected COLORI COLOR2 gt MONO 1 Fornormal use COLOR2 Forprinting screen MONO Monochrome 21 2 Switching of LCD Backlight Use button to toggle the backlight ON or OFF 21 3 Adjusting Brightness of LCD Backligh

B&K Precision 2650A User Manual

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B&amp;K Precision 2650A User Manual

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B&K Precision 2650A User Manual