SDR-OMNI Avionics Test Set User Manual
Revision B 6 June 2023 Page 93
When connected, activate a 1 kHz audio sine wave by turning ON the Audio Tone Out. Monitor the signal coming
through the audio system using the SDR-OMNI headset, and adjust the Audio level so that the input is not being
overdriven.
Ensure that the Audio Measurement Filter Bandwidth is set to 300 Hz- 3kHz BP and monitor the measurement
results of Audio Level and SINAD or Distortion.
The mic and headphone plugs can be moved around to different jacks in the intercom system to troubleshoot
particular channels or connectors that may be problematic.
Figure 5-18. Audio Intercom Test Screen
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