Spectrum Analyzer Performance Verification 3-9 Amplitude Accuracy
MS20xxC MM PN: 10580-00307 Rev. D 3-27
9. Repeat Step 3 through Step 8 for all of the frequencies that are listed in Table A-20 for MS2036C, in
Table A-41 for MS2037C or in Table A-65 for MS2038C.
Spectrum Analyzer Amplitude Across Frequency Measurements
10. Disconnect Sensor A from the 10 dB Fixed Attenuator.
11. Connect the 10 dB Fixed Attenuator to the 34NN50A (or 33KFKF50B) adapter at the Spectrum Analyzer
RF In connector of the MS203xC. Refer to Figure 3-4.
12. Set the MG3692X frequency to 10.1 MHz.
13. Set the MG3692X output to –20 dBm.
14. Set the Power Meter to display Channel B. Press the Sensor key, the Cal Factor soft key, and the Freq
soft key. Use the keypad to enter the value matching the frequency of the MG3692X as the input signal
frequency, which sets the power meter to the proper power sensor calibration factor. Press the System
key to display the power reading.
15. Adjust the power level of the MG3692X so that the Power Meter Sensor B reading matches the Sensor B
value for –30 dBm (Required Sensor B Reading) in Table A-20 on page A-11 for MS2036C, in Table A-41
on page A-21 for MS2037C or in Table A-65 on page A-34 for MS2038C.
16. On the MS203xC, press the Freq hard key and then the Center Freq soft key.
17. Enter 10.1 and then press the MHz soft key to set Center Freq to 10.1 MHz.
18. Ensure that Span is still set to 10 kHz.
19. Press the Amplitude hard key and then the Reference Level soft key.
20. Enter –20 and then press the dBm soft key to set Reference Level to –20 dBm.
21. Press the Atten Lvl soft key.
22. Enter 0 and then press the dB soft key to set Atten Lvl to 0 dB.
23. Press the Marker hard key and then the Peak Search soft key.
24. Record the Marker M1 amplitude reading into the Marker M1 Reading column of Table A-21, “Spectrum
Analyzer Amplitude Accuracy Across Frequency – 10.1 MHz and 100 MHz” on page A-11 for MS2036C,
of Table A-42, “Spectrum Analyzer Amplitude Accuracy Across Frequency – 10.0 MHz and 100 MHz”
on page A-22 for MS2037C or of Table A-66, “Spectrum Analyzer Amplitude Accuracy Across Frequency
– 10.0 MHz and 100 MHz” on page A-35 for MS2038C.
25. Calculate the deviation by subtracting –30 dBm from the Marker M1 amplitude reading. Record the
result into the Dev column of Table A-21 for MS2036C, of Table A-42 for MS2037C or of Table A-66 for
MS2038C.
26. Verify the deviation value is within specification.
27. Repeat Step 21 through Step 26 for AttenLvl of 5dB, 10dB, and20dB.
28. Adjust the power level of the MG3692X so that the Power Meter Sensor B reading matches the Sensor B
value for –2 dBm (Required Sensor B Reading) in Table A-20 for MS2036C, in Table A-41 for MS2037C
or in Table A-65 for MS2038C.
29. On the MS203xC, press the Amplitude key and then the Reference Level soft key.
30. Enter 10 and then press the dBm soft key to set Reference Level to 10 dBm.
Note
The Amplitude Accuracy specifications in the test record apply when the instrument is being verified
in an environment between 20°C and 30°C after a 30 minute warm-up. For an instrument that is not
being verified in a temperature controlled environment, but within a temperature range between
–10°C and +50°C and after a 60 minute warm-up, add ± 1 dB to the Amplitude Accuracy
specification.
To Next Page
Loading...
Need help?
General
