8 Adjust RV401 for
±
750 Hz
±
100 Hz (wide) or
±
375 Hz
±
100 Hz (narrow)
deviation.
9 Change the transmit DCS code +023 to the transmit test by testing frequency
using the programmer.
10 Adjust RV401 so that modulation waveform from modulation analyzer matches
the correct waveform shown in Figure 2-1.
11 Change 250.3 Hz CTCSS tone to the transmit test by testing frequency using the
programmer. Carefully adjust RV401 for
±
750 Hz
±
10 Hz (w ide) or
±
375 Hz
±
10 Hz (narrow) deviation.
•
DTMF
12 Clear the CTCSS tone, then initiate transmit test by testing frequency using the
programmer.
13 Adjust DTMF deviation to
±
2.0KHz
±
10 Hz (wide) or
±
1KHz
±
10 Hz
(narrow) deviation using the programmer.
CORRECT
INCORRECT
INCORRECT
Figure 2-1 Modulation Waveforms
