Yaesu FT-1802M, Руководство по эксплуатации

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64 FT-1802M O
PERATING
M
ANUAL
FM B
ANDWIDTH
& TX D
EVIATION
L
EVEL
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 trans-
mitter 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 G
AIN
S
ETTING
At the factory, a microphone gain has been programmed that should be satisfactory for the
supplied
MH-48
A6J
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 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 sup-
plied MH-48
A6J
Microphone.
M
ISCELLANEOUS
S
ETTINGS