Fm Bandwidth & Tx Deviation Level; Mic Gain Setting - Yaesu FT-2980R Operating Manual

FM Bandwidth & TX Deviation Level
You can reduce the receiver bandwidth and microphone deviation level when operating
on tightly-clustered frequencies (channel spacing of 12.5 or 15 kHz). This will reduce the
transmitter deviation, thus minimizing interference to other users.
To configure for the narrower bandwidth, use the following procedure:
1. Press and hold in the [ MHz ( SET )] key for one second,
then rotate the DIAL knob to select "59 W/N DV".
2. Press the [ MHz ( SET )] key, then rotate the DIAL knob to
change the display to "NARROW (±2.5 kHz Deviation, 6
kHz Bandwidth)".
3. Press and hold in the [ MHz ( SET )] key for one second to
save the new setting and exit to normal operation.
4. To return to wide bandwidth and deviation, repeat the
above procedure, selecting "WIDE (±5 kHz Deviation, 15 kHz Bandwidth)" in step 2
above.

MIC Gain Setting

At the factory, a microphone gain has been programmed that should be satisfactory for
the supplied MH-48
TNC, you may wish to set a different Mic Gain level, using Set Mode item "27 MCGAIN".
1. Press and hold in the [ MHz ( SET )] key for one second,
then rotate the DIAL knob to select "27 MCGAIN".
2. Press the [ MHz ( SET )] key, then rotate the DIAL knob to
set the desired level (Default: LVL 5).
3. Press and hold in the [ MHz ( SET )] key for one second to
save the new setting and exit to normal operation.
Remember to readjust the default microphone input level to
"LVL 5" when using the supplied MH-48
FT-2980R Operating Manual
Microphone. If you use an after-market microphone or connect a
A6J
Miscellaneous Settings
Microphone.
A6J
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