Viavi CX100 ComXpert Operation Manual page 205

Chapter 6 Performing Tests and Measurements
FM Receiver Performance Tests
To Configure the CX100 Meters:
1. Open the Meters panel.
2. Use the Audio Measurements > Distortion/SINAD/SNR soft-key to display the
SINAD Meter on the Meters panel.
3. Open the SINAD Meter configuration window.
4. Enable the Lower Limit.
5. Set the Lower Limit to 12.0 dB.
6. Select Average from the Measurement Type menu.
7. Set Average Count to 20.
8. Close the SINAD Meter configuration window.
9. Use the Audio Measurements > Distortion/SINAD soft-key to display the
Distortion Meter.
10. Open the Distortion Meter configuration window.
11. Enable the Upper Limit.
12. Set the Upper Limit to 1%.
13. Select Live from the Measurement Type menu.
14. Close the Distortion Meter configuration window.
15. Open the Audio Level Meter configuration window.
16. Enable the Upper Limit.
17. Set the Upper Limit to +0.710 V.
18. Enable the Lower Limit.
19. Set the Lower Limit to +0.690 V.
20. Select Live from the Measurement Type menu.
21. Close the Audio Level Meter configuration window.
22. Set the Audio Level Meter Vrms/Vpp toggle soft-key to Vrms.
23. Open the AF Counter Meter configuration window.
24. Select Live from the Measurement Type menu.
25. Close the AF Counter Meter configuration window.
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CX100 ComXpert Operation Manual 22144015
August 2023