Keysight M9383B Measurement Manual page 123

5G NR Measurements Using the VSA Software
5G Waveform and EVM Analysis Using VSA Software
5. Select the Extensions tab and change the External Trigger location to
M9383B/84B Measurement Guide
Trigger 1 In or Trigger 3 In (Use Trigger 3 if your N9040B has Option H1G,
1 GHz BW) and set Phase Noise Optimization to Best Wide Offset.
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