User's Manual

P25net Channel Controller Operations Manual
3-9
3.9.3.2 Start a Sine Wave test tone and adjust the Tx Gain for approximately +/-
2.8kHz as read on the test set deviation meter (Figure X). Adjust the Tx
Offset if necessary fort a good undistorted sine wave as displayed on the
test set oscilloscope screen (Figure 3-10). Verify the Tx frequency offset
error is within required range. Note: Some radios will produce a frequency
offset if the Tx Offset is incorrectly adjusted.
Figure 3-10 Test Set Oscilloscope: Demodulated Audio