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B&K Precision 2650A, 2651, 2652A, 2658A User Manual

1. 1 1 1 PRODUCT OUTLINES 1 1 2 STANDARD ACCESSORIES 2 1 3 OPTIONAL ACCESSORIES 2 1 4 OVERVIEWOF ALL FOUR MODELS 3 2 SPECIFICATIONS m 4 2 1 PERFORMANCE 4 2 2 EXTERNAL VIEW 7 3 EXPLANATION OF PANEL 8 4 EXPLANATION OF SCREEN 11 5 FUNCTION MENU 12 5 1 LIST OF FUNCTION MENU 12 5 2 MENU TREE 13 6 PREPARING FOR OPERATION 19 6 1 STAND nee 19 6 2 CONNECTION TO POWER SUPPLY 19
2. 37 18 2 SAVE FUNCTION lt lt 38 18 3 ABOUT FILE NAME 38 18 4 LOAD FUNCTION 2 72 2222 39 18 5 DELETE FUNCTION 40 18 6 PRESETTING INITIALIZATION 40 19 MEASURING FUNCTION lt MEAS gt 41 19 1 CHANNEL POWER MEASUREMNT lt CH POWERS 41 19 2 ADJACENT CHANNEL LEAKAGE POWER MEASUREMENT lt ACP gt 3 42 19 3 OCCUPIED BANDWIDTH MEASUREMENT lt OBW gt 44 19 4 ELECTRIC FIELD STRENGTH MEASUREMENT lt E F ANT gt 44 19 5 MAGNETIC FIELD STRENGTH MEASUREMENT lt M F PROBES 48 19 6 FREQUENCY COUNTER lt FREQ COUNT gt 50 20 EMI TEST 2651 50 20 1 ADDITIONAL FUNCTION FOR EMI TEST 50 20 2 EMI TEST 51 21 SCREEN CONTROL lt DSPL gt 53 21 1 SETTING SCREEN DISPLAY COLOR 54 21 2 ON OFF SWITCHING OF
3. 30 13 5 SETTING OF TRIGGER SOURCE 31 14 AUTO TUNING lt AUTO TUNE 31 15 HOLD RUN lt HOLD RUN S 31 16 CALCULATION FUNCTION lt CALC gt 32 16 1 NORMAL MODE 32 16 2 MAX HOLD MODE 32 16 3 MIN HOLD MODE 32 16 4 AVERAGE MODE eee 33 16 5 OVERWRITE MODE 33 16 6 SPURIOUS FREE MODE 2658A ONLY 33 17 MARKER amp PEAK SEARCH lt MKR gt 34 17 1 MOVEMENT AND BASIC FUNCTION OF MARKER 35 17 2 NORMAL PEAK SEARCH 35 17 3 ZONE PEAK SEARCH 35 17 4 CHANGE UNIT OF MARKER LEVEL 36 18 SAVE LOAD lt SAVE LOADS 36 18 1 SELECTION OF STORAGE DEVICE
4. 61 24 3 BUZZER SETTING 61 24 4 SETTING THE CLOCK 61 25 USB DEVICE FUNCTION 63 25 1 OUTLINE 63 25 2 HOW TO CONNECT 63 25 3 INSTALLATION OF DRIVER 63 25 4 SAMPLE PROGRAM 63 25 5 EXPLANATION OF COMMAND 64 25 6 INPUT OF FREQUENCY 73 25 7 TRANSFER OF SPECTRUM DATA 73 25 8 WRITING OF ORIGINAL COMPENSATION DATA 74 26 s Tas 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 0 78 27 4 DISPLAY ACCURACY OF FREQUENCY SPAN 79 27 5 LINEARITY OF AMPLITUDE AXIS 79
5. 18 6 Preparing for Operation 6 1 Stand Utilize the stand on the back to use the screen in an easier to see angle on 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 parameters Ka 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 i the buzzer will sound even if buzzer is OFF under settings and the power will turn off within a few minutes Ensure to protect any data or measurements promptly by saving into memory to prevent data lost if the unit shuts down 19 6 3 Batterv Charge When the unit is power
6. 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 if in use Remove the battery cover on the back of the unit by first pressing down with light pressure then slide towards the direction of the arrow as shown in Fig l 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 MB400 battery as specified Otherwise the unit may cause problems or malfunction fi l S 1 m i l Pa i CS i j f j a l i l I l l Hil 7 G l K b ol N dail F 1 i b j f ul 9 100 z 4 lo lo ey E i iI 1N1f1Z71404141 E Fig 1 Fig 2 Fig 3 7 Center Frequency lt FREQ gt When is pushed the following function menu is displayed TTS OST Ge ST 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 is changed 7 1 Setting with step keys F1 F2 1 When is pushed the center frequency decreases in the set step size 2 When is pushed the center frequency increases in the set s
7. Set clock function The time information is set at Japan standard time Set the vear month dav and time when the 2650A series is used for the first time Refer to 24 4 Setting the clock for the details e Quality 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 is 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 1s between 20 C to 60 C humidity less than 60 C 70 RH and variations in temperature and humidity are small After service Please contact us without hesitation if you have any questions about this product B amp K PRECISION 22820 Savi Ranch Parkway Yorba Linda CA 92887 TEL 714 921 9095 FAX 714 921 6422 URL http www bkprecision com li 1 OUTLINE
8. e BAND mode By pushing MODE BAND mode is selected The sum of power in the band specified by band center and bandwidth is measured CP BAND is displayed in MEAS area on the screen The measured value and the setting parameter are displayed at the lower part of the screen DET SMPL q q l j NORMAL LI IMMA TITMA the band center is set git T e 2 By BAND WIDTH POW 2 27080 TaJung0 Ihilm C 1000 00MHz W 400kHz l TANT Th the band width is set CENTER WIDTH 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 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 PK is displayed in MEAS area on the screen 42 The measured value and the setting parameter are displayed at the lower part of the screen TS arom Q m offset frequency of adjacent channel is set SCL 10dB rT FI jiem i TAT Bk The offset is from the center frequency
9. B amp K Precision Corp 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 714 921 9095 Include with the returned instrument your complete return shipping address contact name phone number and description of problem LIMITED TWO YEAR WARRANTY B amp K Precision Corp warrants to the original purchaser that its products and the component parts thereof will be free from defects in workmanship and materials for a period of two years from date of purchase B amp K Precision Corp will without charge repair or replace at its option defective product or component parts Returned product must be accompanied by proof of the purchase date in the form of a sales receipt To obtain warranty coverage in the U S A this product must be registered by completing a warranty registration form on our website www bkprecision com within fifteen 15 days of purchase Exclusions This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs The warranty is void if the serial number is altered defaced or removed B amp K Precision Corp shall not be liable for any consequential damages including without limitation damages resulting from loss of use Some states do not allow limitations of incidental or consequential damages So the above limitation or exclusion may not apply to you This warranty gives you specific rights and you may have other rights which
10. 1 Outline 1 2 3 4 5 6 1 8 9 1 1 Product outlines The 2650A series are authentic spectrum analyzers in a compact and lightweight form factor providing 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 x71 H x265 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 turned off And about 3 2 hours with the backlight set to the minimum level USB host adapter USB host port can be used with removable storage USB flash drives The 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 of the frequency of a signal Average noise level 127 dBm The low average noise
11. BK PRECISION Model 2650A 2651 Series 3 3 GHz 8 5 GHz Spectrum Analyzer USER MANUAL v 1122010 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 abnormal sound abnormal smell or smoke is found stop using 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 Never use any AC adapter other than specified or it will cause damage 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 disconnect 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
12. N o N o M m M oa BR oO Oo UI Cn J B on oa OI Oo ANT Gain dBi O N OT O ss ES NO Antenna gain vs Frequency Frequency GH g Antenna gain vs Frequency 1 8 1 9 2 Frequency GHz Antenna gain vs Frequency Frequency GHz M405 horizontal plane SHAR SCHR MRSS at Iho S 4 XX eo WI RWS C L L L ROLL S 4 NI alt a XI HR SY H Gh TL L U XN 7 K K WN PS wa A XU X Xs XS 0 g K 5 Z tu e z L 1 6 1 4 12 l 0 8 0 6 0 4 0 2 0 0 2 Antenna gain vs Frequency 300 325 350 375 400 425 450 475 500 Frequency MHz Antenna gain vs Frequency 495 520 545 570 595 620 Frequency GHz 19 5 Magnetic Field Strength Measurement lt M F PROBE gt The magnetic field distribution can be measured by using the magnetic field probe CP 2S option 48 Magnetic field probe connection The tip of the magnetic field probe CP 2S is made of glass ceramic board Take care when handling the probe even though the strength of the glass ceramic board is durable under normal operation Specifications of magnetic field probe CP 2S Refer to the operating manual of CP 2S for the details Frequency range 10 MHz to 3 GHz Space resolution 6 dB azn la Reference level setting range maximum 160 to 203 dBuA m Reference level setting range minimum except for
13. 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 is pushed the same function menu as the previous item is displayed 2 When is pushed TG MODE 1s set 3 Each time 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 Tf the setting is changed as 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 1s turned off The magnetic field strength measurement is selected The AUTO tuning is executed The power supply is turned off The presetting is executed When the scale is 2 dB or 5 dB the normalizing function does not operate correctly if the spectrum level is not displayed at a proper position on the screen 56 23 Storage Print Screen Image lt COPY gt The following function menu is displaved when is pushed ME ar 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 SP
14. 6 3 BATTERV CHARGE 20 6 4 INSTALLATION OF BATTERY 20 7 CENTER FREQUENCY lt FREQ gt 21 7 1 SETTING WITH STEP KEYS F1 F2 21 7 2 SETTING WITH ENCODER 21 7 3 SETTING WITH NUMERIC KEY 22 7 4 ACCORDING TO MARKER POSITION 23 8 FREQUENCY SPAN lt SPAN 23 8 1 SWITCHING FREQUENCY BAND 24 9 REFERENCE LEVEL lt REFER 25 9 1 SETTING OF REFERENCE LEVEL 25 9 2 CHANGE OF UNIT OF AMPLITUDE AXIS 25 9 3 SETTING OF STEP SIZE OF REFERENCE LEVEL 25 9 4 ON OFF SETTING OF OFFSET 25 9 5 SETTING OF OFFSET LEVEL 25 9 6 SETTING OF INPUT IMPEDANCE 26 9 7 R
15. Example OBWDB45 3 Query OBWDB2 21 Setting antenna for electric field strength measurement ee aoe ki kaz a 2 M404 M405 M406 USER Setting data for M402 Example EFANTM405 Query RANT m Setting data for user s original antenna 22 Transfer user 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 8 CP2S USER Example MFPROBECP2S Query MFPROBE 24 Transfer user compensation data for magnetic field strength measurement Command MFUSER Refer to 25 8 Writing of Original Compensation Data for the details Example MFUSER300OM 0 ODBI 350M 1 0DBI 25 Start and Stop calculation function Command CALC OFF UE vit OFF MAX MIN AVE OVR _MAX MAXHOLD Example CALCMIN EAN re Query CALC 26 Setting number of times to sweep for MAX HOLD Command MAXNO 5 2 4 8 16 32 64 128 256 512 1024 0 O unlimited Example MAXNO1024 Query MAXNO2 27 Setting number of times to sweep for MIN HOLD Command MINNO C2 74 8 16 32 64 128 256 512 1024 0 O unlimited Example MINNO512 Query MINNO 28 Setting number of times to sweep for AVERAGE Command AVENO C0 14 8 16 32 64 128 256 512 1024 0 O unlimited Ex
16. 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 a frequency mixer the spurious response peculiar to band 1 and band 1 is generated because the down conversion is done at those two bands x About SPURIOUS FREE mode 1 SPURIOUS FREE mode is a mode by which the spurious response peculiarly caused at band l 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 a little in case of a 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 The 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 21 left by 3f right 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 f SPAN 10 to 50 corresponding to 0 2 to 1 div Example judging a spectrum displayed at 6 92 GHz setting center frequency 6
17. uV nV V m 22 IV m mv m uV m nV m A m L LA m mA m HA 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 1s selected as a storage device When is pushed the external USB memory is selected as a storage device Install 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 3 18 2 Save Function When is pushed SAVE menu is displayed as follows 1 hn 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 2650A_csvData folder will automatically be created and the data will be stored in it as a file 2 The object to be stored is selected with or l 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
18. 216 MHz to 960 MHz over 960 MHz Decreasing linearly with the logarithm of the frequency Measurement distance 10 m FCC part15 subpartB class B Limits of radiated disturbance Measurement distance 3 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 Displav Color When is pushed the color of screen display can be selected COLORI COLOR2 MONO e COLORI For normal use e COLOR2 For printing screen MONO Monochrome 21 2 ON OFF Switching of LCD Backlight Use button to toggle the backlight ON or OFF 21 3 Adjusting Brightness of LCD Backlight L to set the brightness It can be set in the range of O to 100 22 Tracking Generator Mode 2652A 22 1 Specification of T G Function Frequency range 5 MHz to 3 3 GHz Output Level 10 dBm dB 1 GHz Fixed value 15 dB 54 22 2 Description of 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
19. 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 is 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 1s for power ON or OFF 21 Input connector NUT 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 MA400 24 USB A plug For connecting USB printer option or USB memory 25 USB B plug For interfacing with a PC 10 4 Explanation of Screen Frequency Axis Setting Values Display Active Area Display Remaining Battery Center frequency Frequency span Resolution bandwidth Video bandwidth Spectrum Display Display 10div x 10 div Amplitude Axis Setting Values Display S UNCAL Disp Splay Reference level Input attenuator Display scale Sweep Axis Setting Values Display RBW 100kHz Seca i A l i MA A aa REF Detection m
20. 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 By rotating kud the marker moves 2 By pushing the 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 is 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 1s erased marker off 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
21. 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 are cleared The last input digit is deleted 22 6 Cancel of Ten Kev Mode By pushing or unit will return to function menu 7 4 According to Marker Position When is pushed the center frequency is set according to the frequency of current marker position Any figures below the setting resolution 20 kHz will be truncated When the marker is not displayed this operation is invalid The menu option disappears 8 Frequency Span lt SPAN gt When is pushed the following function menu is displayed By operating the frequency span is set 2650A 2652A 2651 By rotating the frequency span is changed in the specified step size as follows ZERO 200k lt 500k gt IM 2M 5M 10M 20M 50M gL lt lt 200M lt 500M 1 1G 2G FULL 3 3 GHz 2658A 1 By rotating e the frequency span is changed in the specified step size as follows ZERO lt gt 200k lt gt 500k IM lt gt 2M r 5M 10M lt 20M j SOM lt gt 100M lt gt 200M gt 500M lt G lt 2G 5G lt FULL 8 5 GHz 2 By pushing the frequency span is set to FULL 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
22. LCD BACKLIGHT 54 21 38 ADJUSTING BRIGHTNESS OF LCD BACKLIGHT 54 1V 22 TRACKING GENERATOR MODE 2652A 54 22 1 SPECIFICATION OF T G FUNCTION 54 22 2 DESCRIPTION OF I O CONNECTOR 55 22 3 ON OFF SWITCHING OF T G FUNCTION 55 22 4 NORMALIZING FUNCTION 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 INTERNAL DATA TO USB MEMORY IN LUMP SUM 58 23 5 USB PRINTER OPTION 58 23 6 USB MEMORY 59 24 UTILITY FUNCTION sUTIL mmmmmm 60 24 1 LABEL FUNCTION 60 24 2 MENU OEP
23. MODE MEAS gt FI F3 41 to 43 FI MKR F gt B 34 31 Z l S S RMAL 1 A gt VE LOAD F6 5 p OBW AS F3 R F5 R gt F3 F5 F5 FI SEACH PEAK SERCH M SERCH ZONE OAD F6 AS F5 gt FI ELS UJ K EEE Z z S S P RATIO RBW ALL AUTO 32 53 21 41 41 53 59 20 20 41 21 59 53 RBW AUTO 36 A EBEE S F K P 5 AS gt FREQ EMI C 1 SAVE LOAD F6 F2 SA A 1 FREQ 1 7 TIE 7 E 3 BFS TE l zi 3 l S A GI ALC F6 Oo ia ji p Pe les AUTO EMI VE LOAD F6 S M F4 F3 FREQ COUNT MEAS F6 REFER F6 FI WEEP FI WEEP F6 WEEP F5 F6 R Fl 4 W F3 A Nn Nn A G MODE 3 20 l MKR F2 EEE B 2 N W ALL AUTO 8 28 7 35 lil 35 Yr 2651 only 2 2658A only 3 2652A only 4 2 5 5 4 2 2 5 4 4 2 S 32 53 me MFA i 2 20 L LE L MFA p 238 236 ENEJ L L_a a im p 25 p 2 58 38 i ESM ME NET 33 3 0 0 0 9 5 0 8 38 7 3l 1 3l 33 33 12 52 Menu Tree The following is the sequence of selection for the function menu The function menu corresponds to the function key of FI to F6 Function menw CJ Le Le J Ce Ce Ce Refer to 7 Center Frequency for details Refer to 8 Frequency Span for de
24. Off Setting of Offset By pushing the offer set ON OFF 1s changed 9 5 Setting of Offset Level 1 By operating L the offset of reference level is set When external amplifier or attenuator 19 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 If 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 23 Tf the 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 e 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 Q the reference level is displayed including offset and conversion of 75 For the amplitude reading to be correct a coaxial 50 62 75 Q impedance conversion adapter must be connected to the RF input When 75 Q is selected values in Amplitude axis setting values display area will change according to 75 Q and the offset is set to 5 7 dB insertion loss of 50 2 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
25. analyzer calibration unit thereafter calibration unit so that the displayed power value is 15dBm at each frequency for this unit and measure the absolute value with a receiver for calibration microwave power meter etc value aae aua mme Wilinketementdirida mae 0 l uae aRar ndai i Come Me Oke T WilinRefeemen GdBrida TT ome 0M 3Miiz WifinRefeemenzOdBridt SS WOOMHz 1OMHz 3MHz Reference IGHz _ TMH 3MHz WithinReference 10dB ldot p 2GHz TMH 3MHz WithinReference 10dB ldot p 33GHz IOMHz 3MHz WithinReference 1O0dB ldot 62G z 2 10MHz 3MHz WitinReference 10dB ldot p 85GH2 2 10MHz 3MHz WitinReference 10dB ldot 1 RBW switching error is included at RBW other than 3 MHz 2 2658A only Setting of 2650A 2652A 2651 2658A Setting of calibration unit Reference level 15dBm Frequency Same as a center frequency of VBW IMHz 2650A 2652A 2651 2658A Sweep time s Detection mode gt SMPL Output power Adjust the power indication of Display scale 2 dB div 2650A 2652A 2651 2658A to 15 dBm a 27 2 Accuracv of Reference Level Adjust the output level of the 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 _ Reference level Specifications Measurement
26. 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 Q 6 Search the frequency of disturbance noise that exceeds the QP 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 32 EMI standards selected P Frequency aba Average 79 dBuV 73 dBuV 66 to 56 dBuV CISPR22 class A 0 15 MHz to 0 50 MHz 0 50 MHz to 30 MHz Limits of conducted disturbance at mains ports CISPR22 class B Limits of conducted disturbance at mains ports 0 15 MHz to 0 50 MHz 0 50 MHz to 5 MHz 5 MHz to 30 MHz 30 MHz to 230 MHz 230 MHz to 1000 MHz 1000 MHz to 3000 MHz 3000 MHz to 6000 MHz 30 MHz to 230 MHz 230 MHz to 1000 MHz 1000 MHz to 3000 MHz 3000 MHz to 6000 MHz 0 15 MHz to 0 50 MHz 0 50 MHz to 30 MHz CISPR22 class A Limits of radiated disturbance CISPR22 class B Limits of radiated disturbance VCCIclass A Limits of conducted disturbance at 56 dBuV 60 dBuV 40 dBuV m 47 dBuV m 76 dBuV m 80 dBuV m 30 dBuV m 37 dBuV m 70 dBuV m 74 dBuV m 79 dBuV 73 dBuV 56 to 46 dBuV 46 dBuV 50 dBuV 56 dBuV m 60 dBuV m 50 dBuV m 54 dBuV m 66 dBuV 60 dBuV Decreasing linearly with
27. is displayed 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 1s used for the first time The time information is updated even if the power is turned off 61 1 By rotating e 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 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 Itis displayed in twenty four hour format Values can 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 The clock function of the 26504 2651 series is driven by a dedicated LSI and the power is supplied by a built in lithium battery 62 25 USB Device Function 25 1 Outline The 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 A plug refer to 23 Storage and print of screen image 25 2 How to Connect W
28. 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 return 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 SPOOL csv 0 OB 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 1f 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 2650A will be the first part of the file name instead For example 2650A_SPOO1 csv 3 About file name at the time of storage When SAVE is selected the file name is displayed in the active area following 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
29. measurement by pushing kk A _ 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 GSO 5 Search the frequency of disturbance noise that exceeds the AV or QP 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 5I 7 Moreover measure the frequency detected in the above with QP or AV detection then the SPAN is 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 V 2651 1 Set the compensation data of the antenna beforehand Refer to 25 8 Writing original compensation data for the details 2 Turn on the power of the 2651 after connection 3 Set the initial parameters of radiated emission measurement by pushing SAVE LOAD a The setting parameters are as follows Center Frequency 515 MHz Frequency span 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
30. or less peaks are available 3 When is pushed the function menu 1s 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 of the zone can be adjusted by pressing The width of the zone can be adjusted by pressing A Note The marker does not move in HOLD 17 4 Change Unit of Marker Level When is pushed the unit of the marker level 1s changed If the unit of the reference level is dBm it can be changed to dBm lt a W If the unit of the reference level is dBuV dBmV or dBV it can be changed to dBuV dBmV dBV 4 V If the unit of the reference level is dBuV m it can be changed to dBuV m lt V m If the unit of the reference level is dBuA m it can be changed to dBuA m lt A m Note V M is only displayed when the electric field strength measurement 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 u W mW uW nW pW TW V V mV
31. until it disappears indicating that transfer is complete before continuing operation The folder 72650A SaveAlT is automatically generated and these files are stored inside 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 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 The 2650A 2651 series enables a hard copy of the screen by connecting a USB printer option to USB A plug with the included USB cable 58 Turn on the power of the 2650A 2651 series 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 Label Function Enters the label menu for customizing filename Menu Off Turns 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 012 Oto 9 numeral abc ato z lower case alphabet A to Z upper case alphabet elf A Special characters amp
32. 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 mallemljam 12 1 MANUAL Mode By pushing or rotating Kul MANUAL mode is set By rotating VBW is set as follows 100Hz 300Hz IkHz 3kHz 10kHz 30kHz 1 100kHz lt 300kHz IMHz 12 2 AUTO Mode By pushing the optimum VBW 1s set based on the frequency span and sweep time When AUTO mode is set 4 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 4 is displayed on the right end of each setting value display 13 Sweep Axis Detection Mode lt SWEEP gt When 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 Mode F5 is only displayed when an external trigger signal is detected at the trigger port 13 1 MANUAL Mode By pushing or rotating amp MANUAL mode is set By rotating kal sweep time is set as follows 10ms lt gt 30ms lt 0 ls lt 03s gt Is lt 3s 10s 30s For 2650A 2651 and 2652A when the setting is FULLSPAN it cannot be set to 10 ms For 2658A when th
33. 650A 2652A and 2651 it is set in the range from 200 kHz to 2 GHz ZERO SPAN or FULL SPAN 3 3 GHz For 2658A 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 MHz this function will not work correctly 9 Measuring function key Available for Channel power Adjacent 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
34. 99 Spectrum data of 000 in USB memory Example SRSU111 Spectrum data of 199 in USB memory 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 Data for the returned data 49 Request preset Command PRESET Operation by function key and encoder cannot be done Control the unit with USB commands ON OFF Operation by function key and encoder can be done USB commands are available 50 Setting remote control Command REMOTE FR ON OFF Example REMOTEON Query REMOTE 71 When the remote control is ON REMOTE is displayed in the operating information area on the screen Refer to 4 Explanation of Screen for the details 51 Single sweep Command CAPT It 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 53 Setting input impedance aa sta 5 skeda Command IMP ED 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 000 to 199 Example MCLRWALL For internal memory only Cleared data AL Allofsp
35. C 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 frequency compensation daa Example of M405 300M 0 0DBI 350M 1 0DBL400M 1 4DBL450M 1 4DBL500M 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 2650A series with the included USB cable and turn on the power of the 2650A 2651 series From the upper menu of the 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 1s selected the data 1s written Install the specified USB driver in the personal computer prior to using the PC software Refer to 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 frequenc
36. ECT 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 in 23 1 is stored in USB memory in BMP bit map format As for the file name the number is automatically set and incremented in the form 2650A_001 bmp 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 2650A IMG is automatically generated and these files are stored inside To change the color of the display before print refer to 21 Screen Control 57 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 1n 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 internal 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
37. EFERENCE LEVEL SETTING RANGE FOR EACH UNIT 26 9 8 RELATIONSHIP BETWEEN REFERENCE LEVEL AND ATT AMP AT DBM 27 10 DISPLAY SCALE lt SCALEs 28 10 1 SETTING THE FUNCTION KEY 28 11 RESOLUTION BANDWIDTH lt RBWb gt 28 11 1 MANUAL MODE 28 11 2 AUTO MODE 29 11 3 ALL AUTO MODE 29 Contents 12 VIDEO BANDWIDTH lt VBW gt 29 12 1 MANUAL MODE 29 12 2 AUTO MODE 29 12 3 ALL AUTO MODE 30 13 SWEEP AXIS DETECTION MODE lt SWEEP gt 30 13 1 MANUAL MODE 30 13 2 AUTO MODE 30 13 3 ALL AUTO MODE 30 13 4 SETTING OF DETECTION MODE
38. MIN HOLD Mode 1 By the operation of L the number of times of the sweep in the MIN HOLD mode 1S 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 oa rep lD ep 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 By the operation of the number of times of the sweep in the AVERAGE mode is Set 2 The simple averaging process is executed at each sweep 2 ep 4 ep rep lD ep 32 64 128 ak When this mode is set AVG number of times is displayed in the CALC area on the screen Refer to 4 Explanation of Screen for the details 16 5 OVERWRITE Mode 1 By the operation of A the number of times of the sweep in the OVER WRITE mode 1s set 2 The image on the screen is not cleared at each sweep and the overwriting display is executed 2 ek 4 dek ek 16 dem 32 me Om 128 L 256 512 1024 den infinite When this mode is set OVER WR is displayed in the 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 the SPRIOUS FREE mode by which the spurious response at band 1 and band 1 is simply deleted
39. ameter e N POWER mode By pushing MODE N POWER mode N is selected The bandwidth of points at N of the total power is measured OBW N OBW N is displayed in MEAS area on the screen The measured value is displayed at the lower right corner on the screen 1 By RATIO L the percentage of the total power is set Setting range 80 0 to 99 9 2 By the step size of RATIO can be set to 1 or 0 1 Measured value e XdB DOWN mode By pushing MODE XdB DOWN mode X dB is selected l The bandwidth of points that are X dB lower than the peak level 1s measured 1000 00MHz 4 OBW XdB is displayed in MEAS area on the screen RBW HRD VBW 300kHz X The measured value is displayed at the lower right corner on the screen ATT Pud f 1 By XdB k the down level from SCL 10dB K DET SMPL X the peak level is set aj k NORMAL OBW XdB i Measuring mode Setting parameter Setting range 0 1 to 99 0dB 2 By the step size of XdB can be set to 1dB or 0 1dB Measured value 19 4 Electric Field Strength Measurement lt E F ANT gt 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 Writing of Original Compensation Data for the details 44 LAntenna connection Measurement env
40. ample AVENO16 Query AVENO2 29 Setting number of times to sweep for OVERWRITE Command OVWNO 822 14 8 16 32 64 128 256 512 1024 0 O unlimited Example OVWNO128 Query OVWNO 68 30 Setting displav scale Command SCALE Display scale 2 5 10 2 2XBdv Example SCALE10 5dB div Query SCALE 10dB div 31 Setting sweep time Command SWEEP LY IUM 30M 0 1S 0 3S 1S 3S 10S 30S AUTO ALL Example SWEEPO 1S Query SWEEP 32 Seting detection mode mi Command DET Positive POS Positivepeakmode mode POS NEG SMP Negative peak mode Example DETPOS Sample mode Query DET QP mode only for MSA438E AVG mode only for MSA438E 33 Setting trigger source Command TRG 89 INT EXT 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 MKRRES2 69 37 Seting marker mode Normal marker Command MKR o NORM DELTA DELTA Example MKRDELTA Query MKR 38 Setting marker position by frequency The position of active marker is set by frequency Command NORMMKR ix 7 FE kk k k Refer to 25 6 Input of Frequency Query NORMMKR 39 Setting marker position by number of points on horizontal axis The position of ac
41. aracteristics within 41 0 dB 4Idot 100 MHz to 3 3 GHz within 1 0dB ldot 100 MHz to 8 5 GHz Input VSWR less than 2 0 Input attenuator Operating 0 to 25 dB 1 dB step coupled with reference level range Switching 0 6 dB 100 MHz error RBW ee error H C dB an resolution 381 p 10div Pe 10 dB div 5 dB div 2 dB div es 0 2 dB ldot 2dB 0 4dB 1dot 5 dB 0 8 dB ldot 10dB 1 8 dB 1dot 83 dB Input l Input damage level l Input damage level 27 dBm CW average 27 dBm CW average power 25 VDC 25 VDC Sweep section ssw ooo O 10 ms to 30 s and AUTO 10 ms to 30 s and AUTO frequency span U to 2 GHz frequency span U to 2 GHz 30 ms to 30 s and 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 40 1 1dot Within 40 1 1 dot frequency span 0 to 2GHz frequency span U to SGHz within 1 5 1dot full span within 2 5 1dot full span Trgger Tes Trigger mode AUTO Available only for zero span 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 kQ less than 15 pF Input damage level 50 V DC AC peak Input connector SMAC Detection mode Positive peak Negative peak Sample QP and AV for model 2651 only u Function L 2650A 2652A 2658A 2651 common Marker measurement NORM displa
42. creen 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 of the antenna is not displayed e Directivity of Antenna reference data E plane X Y axis X direction 0 co L L LS L LS CST C o0 G5 OG Be co ae Baa AN The following are the data when the antenna is 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 1s included the influence of the human body M401 900 MHz E plane Antenna gain vs Frequency Shy SEK FOOSE CORES SD ma Kee et St S F L WS TUV 01 ANT Gan GB on tH OSX RS BEZZ SO U as IEE U 2 U 22 Frequency GH 2 46 M402 1 5 GHz E plane oa BSBA LT I T RQ WKH OOK BRY X S D D Bar LP ui D DNNE RW XI BOY Sa S A ll RGG M WL S KN LA L gT OK LA a SKS XL SRZ ALS LAAT LER kl HERS A N OKKA SH ii Lz TALS TSO OA NIZA e Ari SS fn L a _ LT IS FA CAE AXXI SSN PAR HSS iS 18 IK Ag feet w SS ETA 4 ont FO i Ti rs EH ANT Gain dBi
43. d data 1 Setting center frequency Command FREQ x Ek 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 2658A ZERO 200K 500K 1M 2M 5M 10M 20M 50M 100M 200M 500M 1G 2G 5G FULL unit Hz Example SPANSOOK Query SPAN When the unit is other than dBm convert into dBm by using calculation formula in 0 8 Relation between reference level and ATT AMP 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 LOOK 300K IM 3M AUTO ALL unit Hz l 2651 3K OK 30K 120K 300K 1M 3M AUTO ALL unit Hz l 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 RBW3M Query RBW 7 Setting VBW Command VBW A 100 300 LK 3K 10K 30K 100K 300K 1M AUTO ALL unit Hz 1 ALL The optimu
44. dBm Be sure to attach a coaxial 50 2 75 Q impedance conversion adapter when selecting 7 5 Q 9 7 Reference Level Setting Range for Each Unit Available unit in measuring function dBuA m dBuV m Electric field strength measurement Magnetic field strength sie Seng OT NOE NO NAOT NOS NOE Cras mmur as me 0 oe 0 Minima 93_ 96 TOR p n 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 AMP is displayed in Amplitude axis setting values display area on the screen Calculation formula conversion from dBm e AjdBuvj 107 X dBm e BldBmV 47 X dBm e C dBV 13 X dBm e D dBuV m 68 8 Ax X Gar dBm A Wavelengthim Gar Antenna absolute gain times e E dBuA m 107 X F dBm F Probe calibration coefficient dB changes depending on the frequency 9 8 Relationship Between Reference Level and ATT AMP at dBm N O oS N pman Oo oO Oo N p N NI Oo N N p ON Oo Oo N Nn N p NI a N OQ NI ON p lt N Qo oO MN j Oo Qo Ne P o L L L L MAN l oy l L gt a l U Oo Internal input attenuator ATT and IF amplifier AMP are automatically set to the optimum va
45. dication 5 level indicator Other 2650A 2652A 2658A 2651 common 0 to 50 C guaranteed at 23410 C without soft carrying case Operating humidity less than 40 C 80 RH guaranteed at less than 33 C 70 RH without soft carrying case 20 to 60 C less than 60 C 70 RH 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 approx 1 8 kg or 4 Ibs including battery Refer to section 22 Tracking Generator Mode for the specifications of the tracking generator model 2652A 2 2 External view Unit mm SP EL TEU AMALYICR S60 WHE 3 3 Gite 265 o f uza G juza G fun FG Ce GG B amp K Precision reserves the right to make changes in design specification and other information without prior notice 3 Explanation of Panel ERECTA AT ZEE 0 RRC Giz 1 TFT display This is a large liquid crystal display with 640 H x 480 V dots It simultaneously displays spectrum 1Odiv x 10 div various setting parameters and measured values 2 Function key F1 to F6 The function can change according to the operation key 3 Center frequency key The center frequency is set with this key The setting range is U to 3 3 GHz for 2650A 2652A and 2651 and 0 to 8 5 GHz for 2658A The setting resolution is 20 kHz 4 Frequency span key The frequency span is set with this key For 2
46. e setting is 5 GHz SPAN or FULLSPAN it cannot be set to 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 19 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 is displayed on the right end of each setting value display 13 4 Setting of Detection Mode For 2651 refer to 20 EMI test 30 By pushing the detection mode is set POS SMPL NEG 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 of the sample points 1s 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 14 AUTO Tuning lt AUTO TUNE gt When is pushed the spectrum with the maximum level 1s searched within full span and then it is adjusted 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 t
47. ectrumdata spectrum data Spectrum data of 000 w S H E 351 Setting character for label Command LBL The number of characters is 16 or less Example LBLsample_spectrum Query LBL 56 Setting clock Command CLC A 7 28 2 HE a8 8 qabbcedd aa two last digits of year bb month 01 to 12 cc hour 00 to 23 dd minute 00 to 59 Example CLC0902111103 Query CLC 12 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 99 MEN USB 60 Request On Off of Offset Level Command OFFSETOF Returned data ON or OFF 61 Request firmware version Command VER 25 6 Input of Frequency The frequency is input as follows P RE 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 by commas 7 14 55 AERE ee The unit
48. ed 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 Color of LED Good usage of battery Completion of Charge Blinking Red XLED is turned off at power on Remove the battery when unit is connected to the AC adaptor Otherwise battery life will be shortened 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 C to 40 C Caution Misuse of the battery may cause leaks abnormal heat fire or explosion For safe use please observe the following precautions fully Do not short circuit the terminal of the 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 Do not wet the terminal of the 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
49. ettings based on CISPR16 RBW charging dis charging meter time constant time constant time constant E 120k 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 By pushing the menu is displayed NORMAL The initial parameters of normal mode are set EMI C The initial parameters of conducted emission measurement are set EMI R 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 EMI Test The QP detection is usually used in both of the radiated and conducted emission measurements and the AV detection 1s 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 of the connection and notes Power Supply 1 Turn on the power of the 2651 after the connection 2 Set the initial parameters of conducted emission
50. 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 L is rotated right or left the stored file name is displayed one by one from the specified storage device in the active area as follows D USB LOAD 2 2650A_SPO012 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 To search files press gt L and the file will be displayed 1n 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 of loaded spectrum are displayed in the setting parameters display area Refer to 4 Explanation of screen for details 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 HOLD RUN is pushed right after the loaded spectrum and a current spectrum are displa
51. gain times 10070 B 10 A Wavelength m 3 x 10 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 19 5 Magnetic Field Strength Measurement for the details er Frequency range l 10 MHz to 3 GHz Space resolution approx 0 25 mm depending on objects Dimensions outside 12 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 ao Printing method Thermal line dot method Specification l Paper 80 mm width thermal paper Power source l 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 approx 450 g mainframe only Roll printer 10 rolls For USB printer 76 27 Basic Performance Test 2650AM 2651 2652A 2658A To keep the quality of the unit regular performance testing 1s 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 1s required please contact B amp K Precision Connection diagram Spectrum analyzer calibration unit Receiver for calibration 2650A 2651 series 27 1 Frequency Characteristics Adjust the output level of the spectrum
52. hen using the USB device connect with the included USB cable as illustrated USB A plug F 4 i Fy E a A r 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 www bkprecision com 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 of the 2650A 2651 series is turned on and install it following this wizard 25 4 Sample Program Please contact us at www bkprecision com to request a sample code which demonstrates how to write a custom program using the commands in the following section 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 OK CR LF ERR CR LF or response to command CR LF By inputting instead of for each command the current setting parameters will be queried and a response of the value will be received by the PC Except for Request command and the command for inputting correcte
53. his 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 is 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 By pushing the sweep is restarted By pushing the calculation function is selected By rotating er the number of times of the 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 of the sweep is infinite This mode is 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 By the operation of papa L the number of times of the sweep in the MAX HOLD mode 1S 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 4 ep d 6 32 64 1285 When this mode is set MAX number of times is displayed in the CALC area on the screen Refer to 4 Explanation of Screen for the details 16 3
54. ironment Antenna Connect to RF INPUT M401 M402 M403 M404 M405 M406 2650A series Turn the back to the signal source Specifications of dipole antenna The antenna gain and VSWR are specified at the center of frequency range Type Frequency range 0 8 to 1GHz 1 25 to 1 65GHz 1 7 to 2 2GHz 2 25 to 2 65GHz 300 to SOOMHz 4 7 to 6 2GHz we E a H Dimensions 7 50 x280mm 750 x280mm 7 50 210mm 1 E S x210mm 8 E F x212mm l e x152mm Approx 58 Approx 60g Approx 58 mae 56g wna 62g Approx Sg Ag Reference level setting range 93 to 143 96 to 146 99 to 149 100 to 150 87 to 137 109 to 159 except for the ii 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 La Awhip 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 e Mode Selection and Measurement By pushing ANT the antenna M401 M402 M403 M404 M405 M408 USER can be selected The measurement starts as soon as the antenna 1s selected 45 E F M40 or E 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 spectrum may exceed the area on the s
55. 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 a comma after each data value and the string can have a total of ten data points per line 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 l 86 7dB 69 2dB 50 7dB 44 94B 40 1dB coefficient Data of ten points or less can be written OHZ is not valid as a data point 3 Using 2650A P
56. level of 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 1Odiv 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 6 Auto tuning 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 6 Measuring functions Channel power Adjacent channel power Occupied bandwidth Electric field strength Magnetic field strength and Frequency measurement Calculation functions Max hold Min hold Averaging 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 of the 2650A 2651 series via PC The software emulates the front panel keys and supports transfer of 1001 point trace data from the analyzer to the PC 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 LC2650A 3 Accessory pouch 4 User manual 5 PC software and USB cable 6 Lithium Ion battery MB400 1 3 Optional accessories 1 Dipole antenna
57. lt gt EM Qu Note Certain special characters may not be recognized or valid as a filename 2 A block cursor will be displayed in the label display area By rotating La anumber small letter alphabet capital letter alphabet or special character will be indicated on the cursor position Turn the knob until the desired label character is displayed 3 When is pushed the cursor position will move right by one character And the previous character is set 60 4 When is pushed the cursor position will move left by one character To change the character turn the encoder To delete press F5 again Characters previously entered can be deleted by consecutively pushing F5 5 When finished press to exit the label menu 24 2 Menu Off By pushing the display of the 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 1s made ALWAYS The buzzer will sound whenever a key or the rotary encoder is operated gt 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
58. lues 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 Ist 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 2d 10 Display Scale lt SCALE gt When is pushed the following function menu is displayed 10 1 Setting the Function Kev 1 By pushing 10 dB div display scale is set 2 By pushing 3 By pushing R 2 dB div display scale is set 9 dB div display scale is set 11 Resolution Bandwidth lt RBW gt When is pushed the following function menu is displayed mallia 11 1 MANUAL Mode By pushing or rotating L MANUAL mode is set By rotating L RBW is setas follows 2650A 2652A 2658A 3kHz lt gt 10kKHz 30kHz 100kHz gt 300kHz gt IMHz ew 3MHz 2651 3kHz lt gt 9kKHz m0w30kHz e 120kHz lt gt 300kHz ew IMHZ ew3MHz 28 11 2 AUTO Mode By pushing the optimum RBW 1s set based on the frequency span and sweep time When AUTO mode is set 4 1s displayed on the right end of RBW setting value display 11 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 4 is displayed on the right end of each setting value display When RBW is set to
59. m 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 Query VBW2 RT 8 Selecting Measuring Function OBW eee CP ACE OBW ER MR FC OFF is Example MEASOBW To change measuring function when in a different measurement mode set function OFF first by 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 W 20 00 k Frequency counter FC 2400 0000 M Tf the frequency counter is not installed Invalid for F C is responded Tf the level of spectrum is low and unmeasurable Non Signal is responded 65 10 Setting mode for channel power measurement Command CPMODE gt X Example CPMODETOTAL Query CPMODE Command e TOTAL The sum of power on the screen is measured The sum of power in the band specified is measured 11 Setting zone center frequency for channel power measurement Command CPCNTR A LYK 0 500 screen position center 250 Example CPCNTR300 Query CPCNTR 12 Setting zone width for channel power measurement Command CPWIDTH gt gt 7 FE 28 kk ak 0 500 screen position center 250 Example CPWIDTH200 Query CPWIDTH 13 Setting
60. mode for adjacent channel power measurement Command AGPMODE 55 TOTAL BAND PEAK f TOTAL TOTAL total power method power method Example ACPMODEPEAK ane BAND in band method Query ACPMODE PEAK PEAK reference level method 14 Setting band offset for adjacent channel power measurement Command ACPOFS X x X LYK ULU screen position center 250 Example ACPOFS 100 Query ACPOFS 15 Setting bandwidth for adjacent channel power measurement Command ACPCHBW 4 3 LYK ULU screen position center 250 Example ACPCHBW30 Query ACPCHBW 2 16 Setting reference band center frequency for adjacent channel power measurement Command ACPREF X 66 ARA 0 500 screen position center 250 Example ACPREF250 Query ACPREF 17 Setting reference bandwidth for adjacent channel power measurement Command ACPREFB W 3 7 28 28 HE kk 0 500 screen position center 250 Example ACPREFBW50 Query ACPREFBW 18 Setting mode for occupied bandwidth measurement Command OBWMODE gt N 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 OBWRATIO2 20 Setting XdB DOWN for occupied bandwidth measurement Command OBWDB 0 1 to 99 0 0 1 step unit dB
61. o 8 5 GHz RBW 100 kHz 235 C RBW 100 kHz 23 5 C 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 ee 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 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 i 2651 3 kHz 9 kHz 30 kHz 120 kHz 300 kHz 1 MHz 3 MHz ns SSB phase noise 90 dBc Hz tvpical 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 pf 2650265282651 SBA Pn A 0 Referencelevel level 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 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 dIdot 50 kHz to 100 MHz within 2 0 dB dIdot 50 kHz to 100 MHz ch
62. ode q Ag L AN j ATT 1dB A NTP a a L 3577001057 INTATT Pa EF LI aea ia w Pu AR d TRP AA A jaa aa dja SWP 0 1 S been IES 7 tf ro l S C 2 S E 2 a E ees dee DET POS T Sa Calculation function display a l Ba aden nae Ines Feet ned alee OO AVG 16 a mi j Measuring Measuring function display Measuring function display T Saeed T T T L MT SIT j earns eee T Hp T E s E 154 T9MHz KSL TRT MK 980 FTE Ss TID l IMHz 3bdBm YoJun26 13h10n OBJECT LOAD Operating Information display Operating Information display display SPECTRUM PARAM BOTH EXECUTE RETURN Loaded spectrum information display Upper Label Display Measured Values display This is also used as a display for set values when the measuring function is used 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 For the sequence of selection for the function menu refer to S 2 Menu tree Function menu Key Sequence Page A ACP WIDTH CNTR MEAS FI FI F2 WIDTH MEAS F1 gt FI B BRIGHT DSPL F3 CENTER FREQ MEAS Fl FREQ F6 HA __ Function menu____ _Key Sequence M
63. of the reference CALC Bri ira n W J il g carrier TRT T T sl 8 larga OK 13h15m L IUUU UUMHZ OFFSET CHOTA HW MEAS l A TOTAL OFFSET WIDTH 1 band width of adjacent channel 1S set By F4 JRErERENCECENTER L the center frequency of the reference carrier is set Measuring mode Setting parameter Measured value F4 is only for TOTAL and BAND mode sy TS lampon C2 the band width of reference carrier is set E5 is only for BAND mode e Definition of Reference Carrier for each Mode TOTAL total power method BAND in band method PEAK reference level method This is based on the sum of power in the This is based on the sum of power in the This is based on the power of peak on the displayed spectrum The center frequency specified bandwidth The center screen The center frequency of the of the reference carrier 1s set by F4 frequency of the reference carrier is set by reference catrier is automatically set to the F4 peak on the screen 43 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 of the total power N POWER or as the width of points that are X dB lower than the peak level XdB DOWN KU 1000 OOMHz SPAN MHz RER 100kHz VER S00kHz REF 10dBm ATT 5dB SCL 10dB SWP 0 is DEI SMPL CALC NORMAL MEAS OBW N Measuring mode Setting par
64. pan fi 1 div from the left on the spectrum display fy 9 div from the left on the spectrum display Setting of 2650A 2652A 2651 2658A fo Center Specifications Measurement is fi Judgment Frequency span RBW i Frequency value mer one ane mar ona ra p f ane mne ae anan arai T amie jim ME anian arar 1 mi THe f ME anna 00 f I aM aaia ara 0 f Tuma Tem e aana 0 f m aoe SMR anaa ara 0 f a ue oe aana aa p f 1 2650A 2652A 2651 only 2 2658A only Setting of 2650A 2652A 2651 2658A Setting of calibration unit Reference level 15dBm Frequency Adjust it to the positions of fi VBW AUTO and fo Sweep time s Output power 15 dBm Detection mode gt SMPL Display scale 10 dB div 27 5 Linearity of Amplitude Axis Adjust the level of the calibration unit so that the peak is at the top of the 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 2651 2658A Setting of 2650A 2652A 2651 2658A Output of calibration unit Specifications E Pan Judgment Display scales XdBm adjust it to the Oth div Reference 15 dBm 10 dB div X 10 dBm Within 25 dBm 0 8 dB 1 dot 5 dB div E Within 20 dBm204 dB dot 2 dB di XdBm adjust it to the Oth div Reference 15 dBm l Within 17 dBms0 2 dB ldot Setting of 2650A 2652A 265 1 2658A Setting of calibration unit a E L XdBmiadjus
65. s 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 PT2650A printer with 10 rolls 1 4 Overview of all four models 50 kHz to 3 3 GHz 2650A Applications Cellular phone 2 4 GHz wireless LAN 2 5 GHz WiMAX RF ID Broadcasting 50 kHz to 8 5 GHz 2658A Covering most of the wireless communication frequency spectrum Applications 5 GHz wireless LAN 3 5 5 8 GHz WIMAX Maintenance of wireless base station 50 kHz to 3 3 GHz 2652A With 5 MHz to 3 3 GHz tracking generator Applications Frequency characteristics measurement of electronic component circuit and return loss measurement 50 kHz to 3 3 GHz 2651 For EMI test Applications Radiated and conducted emission measurement 2 Specifications 2 1 Performance Frequency section PI 2650A 2652A 2651 2658A Frequency range 50 kHz to 8 5 GHz Frequency Frequency Harmonic order Base band 6 1 Gto8 5 Band l 1 GHz Center frequency Setting 20 kHz resolution Allows rotary encoder numeric key and function key Accuracy within 4 30 20T kHz 1 dot within 4 30420T kHz 1 dot frequency span 200 kHz to 10 MHz frequency span 200 kHz to 10 MHz RBW 3 kHz 2345 C RBW 3 kHz 2345 C within 60 300T kHz 1dot within 60 300T kHz 1dot frequency span 20 MHz to 3 3 GHz frequency span 20 MHz t
66. set to ZERO SPAN 23 4 When is pushed and then the setting is FULL or 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 3 3 GHz 0 63 GHz 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 Frequency connection point Base band and Band l 34 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 REFER gt When is pushed the following function menu is displayed 9 1 Setting of Reference Level By rotating the reference level is changed Refer to 9 7 Reference Level Setting Range for Each Unit for details 9 2 Change of Unit of Amplitude Axis When is pushed the unit is set as follows p Bm BN dmv BY 4 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
67. tails kal Set the frequency span Refer to 9 Reference Level for details z oer oe oe ST Fe Ee ST ae Ca Set the reference level 13 Refer to 10 Display scale for details SCALE L Set the displav scale Refer to 11 Resolution Bandwidth for details rt Set the RBW Refer to 12 Video Bandwidth for details nt Set the VBW Refer to 13 Sweep Axis Detection Mode for details SWEEP Ls oc MODE noni frasea Q 14 Refer to 16 Calculation Function for details SPR FR is only for 2658A Refer to 17 Marker amp Peak Search for details L Set the zone center frequencv ZONE mode 15 FA Peak Search SAVEJLOAD Refer to 18 Save Load for details Main menu Save menu KE e Set the address to store the spectrum or the parameter Load menu File Search Step ME ee E L Set the address to call the spectrum or the parameter Delete menu File Search Step kaz a AI ia Set the address to eliminate the trace or parameter For 2651 Preset menu for 2651 16 Refer to 19 Measuring Function for details 17 mk COPY S SI Refer to 21 Screen Control for details BACKLT Refer to 23 Storage Print Screen Image for details Refer to 24 Utility Function for details L Select the numeric value
68. tep size 3 Setting step size When is pushed the step size 1s changed according to the following C AUTO 100MHz 10MHz gt IMHz 100kHz 20kHz TJ AUTO The step size is 1 10 of the 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 1s set to 20 kHz AUTO is recommended for normal use 7 2 Setting with encoder 1 By rotating A the center frequency is changed in the set step size 2 Setting step size When is pushed the step size 1s changed according to the following E AUTO JOOMHz 10MHz IMHz 100kHz 20kHz AUTO The step size is 1 500 of the frequency span However if the frequency span is less than 5 MHz 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 2 and correspond to lt GHz gt MHz and lt gt F4 and correspond 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 1 2 3 4 5 HOLD SAVE 6 7 8 9 0 cory map A MHz GHz 4 The center frequency is determined by inputting the unit of frequency To enter the unit and are available and are also available
69. the logarithm of the frequency Measurement distance 10 m Measurement distance 10 m mains ports VCCI class B Limits of conducted disturbance at mains ports VCCI class A Limits of radiated disturbance 0 15 MHz to 0 50 MHz 0 50 MHz to 5 MHz 56 dBuV 46 dBuV frequency 5 MHz to 30 MHz 60 dBuV 50 dBuV 30 MHz to 230 MHz 40 dBuV m Measurement distance 10 m 230 MHz to 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 30 MHz 230 MHz 30 dBuV m Measurement distance 10 m 37 dBuV m 66 to 56 dBuV 56 to 46 dBuV Decreasing linearly with the logarithm of the VCCI class B Limits of radiated disturbance 230 MHz 1000 MHz 1000 MHz to 3000 MHz 70 dBuV m 50 dBuV m Measurement distance 3 m 3000 MHz to 6000 MHz 74 dBuV m 54 dBuV m 0 15 MHz to 0 50 MHz 79 dBuV 66 dBuV 73 dBuV 60 dBuV 0 50 MHz to 30 MHz 66 to 56 dBuV 56 to 46 dBuV 56 dBuV 46 dBuV 60 dBuV 50 dBuV 39 1 dBuV m 43 5 dBuV m 464 dBuV m 49 5 dBuV m 40 dBuV m 43 5 dBuV m 46 dBuV m 54 dBuV m FCC part15 subpartB class A Limits of conducted disturbance at mains ports FCC part15 subpartB class B Limits of conducted disturbance at mains ports FCC part15 subpartB class A Limits of radiated disturbance 0 15 MHz to 0 50 MHz 0 50 MHz to 5 MHz 5 MHz to 30 MHz 30 MHz to 88 MHz 88 MHz to 216 MHz 216 MHz to 960 MHz over 960 MHz 30 MHz to 88 MHz 88 MHz to 216 MHz
70. the minimum value in screen shift approx dB probe simple sistance e Mode Selection and Measurement By pushing PROBE CP 2S or USER mode is selected The measurement starts as soon as the probe is selected MIF 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 110 to 153 dBuA n A spectrum other than the frequency range of the probe is not displayed 49 19 6 Frequency Counter lt FREQ COUNT gt 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 the detection mode can be set ees SMPL gt NEG QP AV J In 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 of the minimum value between the sample points QP Quasi Peak The spectrum of the quasi peak value between the sample points AV Average The spectrum of the average value between the sample points As for QP detection the following characteristics are chosen according to RBW s
71. tion is set when is pushed the function menu 19 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 of the 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 of the 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 lt CH POWER The total power in the specified frequency band is measured Two modes TOTAL and BAND are available e TOTAL mode By pushing MODE TOTAL mode is selected The sum of power in the displayed spectrum specified by center frequency and frequency span is measured 4 CP TOTAL is displayed in MEAS area on the screen The measured value is displayed at the lower right corner on VBW 300kHz the screen SCL 10dB SMP 0 1s DET SMPL CALC NORMAL MEAS CP TOTAL i POW 2 77dBm 98JUNID 13h10m C 1000 00MHz YAT MODE f jii TOTAL jil Measuring Mode Measured Value
72. tittotheOthdiv _Reference1SaBm o oo o oo ae o T E I 79 Center frequency Reference level Frequency span RBW VBW Sweep time Detection mode 100 MHz Frequency 100 MHz 15 dBm 10 MHz 3 MHz 1 MHz Is SMPL 80 SERVICE INFORMATION Warranty Service Please go the support and service section on our website www bkprecision com to obtain a RMA Return the product in the original packaging with proof of purchase to the address below Clearly state on the RMA the performance problem and return any leads probes connectors and accessories that you are using with the device Non Warranty Service Please go the support and service section on our website www bkprecision com to obtain a RMA Return the product in the original packaging to the address below Clearly state on the RMA the performance problem and return any leads probes connectors and accessories that you are using with the device Customers not on an open account must include payment in the form of a money order or credit card For the most current repair charges please refer to the service and support section on our website Return all merchandise to B amp K Precision Corp with pre paid shipping The flat rate repair charge for Non Warranty Service does not include return shipping Return shipping to locations in North America is included for Warranty Service For overnight shipments and non North American shipping fees please contact B amp K Precision Corp
73. tive marker is set by number of points on horizontal axis Command MKRPOSI 0 to 500 O far left 500 far right Example MKRPOSI40 40 Setting peak search mode Peak search mode Command PEAK x NORM ZONE Zone peak search Example PEAKZONE Query PEAK 41 Request peak search Command PKSEARCH 01 02 03 04 05 06 107 08 09 10 11 Example PKSEARCHO m 42 Setting zone center frequency for peak search Command PKCNTR A x 7 28 kk k k Refer to 25 6 Input of Frequency Example PKCNTR1 345G Query PKCNTR 43 Setting zone width for peak search Command PR WIDTH 3 7 Xk k k X Refer to 25 6 Input of Frequency Example PKWIDTH256M Query PKWIDTH 70 Unitof marker 4A Setting unit of marker Command CONV si DBM W DBV V DBUVM VM aay Example CONVDBUVM y Query CONV DBUVM dBuV m V m 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 Spectrum data of 000 8 CURR 000 0 199 ad KA MEN Current spectrum Example SRSCURR Spectrum data of 199 The 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 Transferred spectrum 5 000 to 1
74. value Judgment within t 1 4 GB within H 4 dB Ido nan wiiee i anm withing 8 aBetae PL 208m T wibinzladirid TT anan L wibinzladiridu TT anTad TT Input attenuator switching error is included at the reference level other than 15 dBm Setting of 2650A 2652A 265 1 2658A Setting of calibration unit Center frequency 100 MHz Frequency 100 MHz Frequency span JOMHz Output power Adjust it so that the indicated RBW gt 3 Mhz value of 2650A 2652A 2651 2658A VBW IMHz is at the Oth div from the top Sweep time Is Detection mode gt SMPL Display scale 2dB div 27 3 Display Accuracy of Center Frequency Measure the frequency with the peak search function of 2650A 2652A 265 1 2658A Setting of 2650A 2652A 2651 2658A Judgment Specificati F within 250 KET do RBWx6 pr e cs JAGHTI 6IGHzA 85 GHz 2 2650A 2652A 2651 only 2 2658A only Setting of 2650A 2652A 2651 2658A Setting of calibration unit Reference level 15dBm Frequency Same as a center frequency of VBW AUTO 2650A 2652A 2651 2658A Sweep time Is Output power 15 dBm Detection mode gt SMPL However calibrate the signal generator in advance Display scale 10dB div 78 27 4 Displav Accuracv of Frequencv Span Adjust the frequency of the calibration equipment so that the peaks are at the positions of f and fo and measure the frequencies of T and fo Calculate from f and fo the display accuracy of the frequency s
75. vary from state to state B amp K Precision Corp 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 714 921 9095 81 BK PRECISION Titres 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 2009 B amp K Precision Corp Printed in Japan
76. y compensation data frequency compensation data In case of magnetic field strength measurement MFUSER frequency compensation data frequency compensation data Example of CP 2S MFUSER10M 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 ORK is returned 5 How to use Set the measuring function of the 2650A 2651 series to electric field strength measurement mode or magnetic field strength measurement mode By pushing MEAS E F ANT electric field strength measurement mode is set By pushing MEAS M F PROBE magnetic field strength measurement mode 1s 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 In the 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 4 2 15 dB As areference the conversion formula to electric field strength 1s indicated below E 480r x Pa Gax2 E Electric field strength V m Pa Received electric power W Ga Antenna
77. yed 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 File Search Step ALAN oe 1 The file name to be deleted is selected from the specified device with e and the active area will indicate this name As for the number of search steps itis 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 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 Items Parameters Center frequency 1 GHz Frequency span 20 MHz Reference level 10dBm Offset 0 0 dB 50 Q 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 The measuring function can be selected as follows CH POWER Channel power measurement ACP Adjacent channel leakage power measurement Occupied bandwidth measurement E F ANT Electric field strength measurement M F PROBE Magnetic field strength measurement S z z Frequency counter factory option Once the measuring func
78. ys 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 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 Load Loads one spectrum and one setting parameter General 2650A 2652A 2658A 2651 common USB Communication Protocol USB version 1 1 will also work with USB 2 0 devices 2 Mp Hard copy USB printer option connected to A plug host enables hard copy of screen A plug Displav Displav 5 7 inches and color LCD LED 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 in

B&K Precision 2650A, 2651, 2652A, 2658A User Manual

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B&amp;K Precision 2650A, 2651, 2652A, 2658A User Manual

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B&K Precision 2650A, 2651, 2652A, 2658A User Manual