Options Performance Verification 4-5 Spectrum Analyzer Frequency Accuracy with GPS On
MS20xxC MM PN: 10580-00307 Rev. D 4-9
Procedure
1. Connect the GPS Antenna to the GPS Antenna connector on the VNA Master..
2. Connect the 10 MHz Reference to the Anritsu MG3692X Synthesized Signal Generator. Refer to
Figure 4-2
3. Turn on the 10 MHz Reference Standard and the Anritsu MG3692X Synthesized Signal Generator.
4. Press the On/Off key to turn on the MS203xC VNA Master.
5. Press the Shift key and then the Mode (9) key. Use the rotary knob to highlight Spectrum Analyzer, and
then press the Enter key to switch to Spectrum Analyzer mode.
6. Press the Shift key, the Preset (1) key, and then the Preset soft key to reset the instrument to the default
starting conditions.
7. Press the Shift key and the Sweep (3) key, press the Sweep Mode soft key, and then press the
Performance soft key to set the instrument to Performance Sweep mode.
8. Set the MG3692X output to 7 GHz CW, with an RF Output Level of –30 dBm.
9. Connect the output of the Synthesized Signal Generator to the Spectrum Analyzer RF Input of the
VNA Master.
10. On the MS203xC VNA Master, press the Amplitude hard key and then the Reference Level soft key.
11. Enter –10 and then press the dBm soft key to set Reference Level to –10 dBm.
12. Press the Span hard key and then the Span soft key.
13. Enter 10 and then press the kHz soft key to set Span to 10 kHz.
14. Press the BW hard key and then the RBW soft key.
15. Enter 100 and then press the Hz soft key to set RBW to 100 Hz.
16. Press the VBW soft key.
17. Enter 30 and then press the
Hz soft key to set VBW to 30 Hz.
18. Press the Freq hard key and then the Center Freq soft key.
19. Enter 7 and then press the GHz soft key to set Center Frequency to 7 GHz.
20. Press the Marker hard key and then the More soft key.
21. Press the Counter Marker soft key to turn it On.
22. Press the Back soft key and then the Peak Search soft key.
23. Record the marker frequency value into Table A-13, “Spectrum Analyzer Frequency Accuracy with GPS
On” on page A-7 for MS2036C, into Table A-34, “Spectrum Analyzer Frequency Accuracy with GPS On”
on page A-18 for MS2037C or into Table A-58, “Spectrum Analyzer Frequency Accuracy with GPS On”
on page A-31 for MS2038C.
24. Verify that the deviation of the value is < ±350 Hz (±50 ppb) from 7 GHz.
Note
Ensure that the Anritsu GPS Antenna is in a direct line-of-sight relationship to the GPS satellites or
that the Antenna is placed outside without any obstructions.
Caution Do not connect the 10 MHz Reference to the VNA Master.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
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