Operation Manual

66 FT-2900R 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 W59 W
59 W59 W
59 W/
N DVN DV
N DVN DV
N DV.”
2. Press the
[
MHz
(
SET
)]
key, then rotate the DIAL knob to
change the display to “
NARROWNARROW
NARROWNARROW
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 “
WIDEWIDE
WIDEWIDE
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-48A6J Microphone. If you use an after-market microphone or connect a TNC,
you may wish to set a different Mic Gain level, using Set Mode item “
27 MCGAIN27 MCGAIN
27 MCGAIN27 MCGAIN
27 MCGAIN.”
1. Press and hold in the
[
MHz
(
SET
)]
key for one second, then
rotate the DIAL knob to select “
27 MCGAIN27 MCGAIN
27 MCGAIN27 MCGAIN
27 MCGAIN.”
2. Press the
[
MHz
(
SET
)]
key, then rotate the DIAL knob to
set the desired level (Default:
LVL 5LVL 5
LVL 5LVL 5
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 5LVL 5
LVL 5LVL 5
LVL 5” when using the sup-
plied MH-48A6J Microphone.
MISCELLANEOUS SETTINGS