3-9 Amplitude Accuracy Spectrum Analyzer Performance Verification
3-26 PN: 10580-00307 Rev. D MS20xxC MM
14. Press the Atten Lvl soft key.
15. Enter 30 and then press the dB soft key to set Atten Lvl to 30 dB.
16. Press the Span hard key.
17. Enter 10 and then press the kHz soft key to set Span to 10 kHz.
18. Press the BW hard key and then the RBW soft key.
19. Enter 1 and the press the kHz soft key to set RBW to 1 kHz.
20. Press the VBW soft key.
21. Enter 10 and then press the Hz soft key to set VBW to 10 Hz.
22. Press the Freq hard key and then the Center Freq soft key.
23. Enter 50 and then press the MHz soft key to set Center Freq to 50 MHz.
24. Adjust the power level of the MG3692X so that the Power Meter Sensor B reading matches the first
Sensor B value (Required Sensor B Reading) in Table A-18 on page A-10 for MS2036C, in Table A-39
on page A-20 for MS2037C or in Table A-63 on page A-33 for MS2038C.
25. On the MS203xC, press the Marker hard key and then the Peak Search soft key.
26. Record the Marker M1 amplitude reading into the Measured Value column of Table A-19, “Spectrum
Analyzer 50 MHz Amplitude Accuracy” on page A-10 for MS2036C, of Table A-40, “Spectrum Analyzer
50 MHz Amplitude Accuracy” on page A-20 for MS2037C or of Table A-64, “Spectrum Analyzer 50 MHz
Amplitude Accuracy” on page A-33 for MS2038C.
27. Repeat Step 24 through Step 26 for the other power levels in Table A-18 for MS2036C, in Table A-39 for
MS2037C or in Table A-63 for MS2038C. Change “Reference Level” and “Atten Lvl” setting as required
(as shown in Table A-19 for MS2036C, in Table A-40
for MS2037C or in Table A-64 for MS2038C).
28. Calculate the Deviation values of each Test Level using the following formula:
Deviation = Test Level – Measured Value
29. Verify that the Deviation values are within specification.
Amplitude Accuracy Across Frequency Verification Procedure
1. Disconnect the Fixed Attenuator from the 34NN50A (or 33KFKF50B) Adapter.
2. Connect Sensor A back to the open end of the 10 dB Fixed Attenuator. Refer to Figure 3-3.
Test Setup Characterization
3. Set the frequency of the MG3692X to 10.1 MHz CW.
4. On the Power Meter, press the Sensor key, the Cal Factor soft key, and then 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. Repeat for Channel B. Press the
System key to display the power reading.
5. Adjust the power level of the MG3692X so that the Sensor A reading is –2 dBm ± 0.1 dB.
6. Record the Sensor B reading in the Required Sensor B Reading for –2 dBm column of Table A-20,
“Spectrum Analyzer Amplitude Accuracy Across Frequency Setup Table” on page A-11 for MS2036C, of
Table A-41, “Spectrum Analyzer Amplitude Accuracy Across Frequency Setup Table” on page A-21 for
MS2037C or of Table A-65, “Spectrum Analyzer Amplitude Accuracy Across Frequency Setup Table”
on page A-34 for MS2038C.
7. Adjust the power level of the MG3692X so that the Sensor A reading is –30 dBm ± 0.1 dB.
8. Record the Sensor B reading in the Required Sensor B Reading for –30 dBm column of Table A-20 for
MS2036C, of Table A-41 for MS2037C or of Table A-65 for MS2038C.
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