Yaesu FT-7900R, Руководство по эксплуатации, Страница: 27 / 84

25 FT-7900R O
PERATING
M
ANUAL
C
HANNEL
S
TEP
S
ELECTION
The FT-7900R ’s synthesizer provides the option of utilizing channel steps of 5/10/12.5/15/
20/25/50/100 kHz per step, as well as an automatic step selection based on the current
operating frequency (“AUTO”), any number of which may be important to your operating
requirements. The
FT-7900R
is set up at the factory in the “AUTO” configuration, which
probably is satisfactory for most operation. However, if you need to change the channel step
increments, the procedure to do so is very easy; remember to get set up on the desired band
before making any changes, as different steps may be programmed for each operating band.
1. Press and hold in the [
BAND
(
SET
)] key for 1/2 second to enter the Set mode.
2. Rotate the
DIAL
knob to select Menu #43 (
STEP STEP
STEP STEP STEP
).
3. Press the [ BAND
(
SET
)] key momentarily, then rotate
the DIAL knob to select the new channel step size.
4. Press the [ BAND
(
SET
)] key momentarily to save the
new setting, then press and hold in the [ BAND
(
SET
)]
key for 1/2 second to exit to normal operation.
5 kHz and 15 kHz steps are not available for use on above 700 MHz.
R
ECEIVING
M
ODE
S
ELECTION
The FT-7900R provides for automatic mode change when the radio is tuned to different
operating frequencies. However, should an unusual receiving situation arise in which you
need to change to other receiving mode, the procedure to do so is very easy.
1. Press and hold in the [ BAND
(
SET
)] key for 1/2 second to enter the Set mode.
2. Rotate the DIAL knob to select Menu #35 (
RX MOD RX MOD RX MOD RX MOD RX MOD
).
3. Press the [ BAND
(
SET
)] key momentarily, then rotate
the DIAL knob to select the desired receiving mode.
AUTO AUTO
AUTO AUTO
AUTO
: Automatic mode setting per default values
for the selected frequency range
FM FM
FM FM
FM
: Frequency Modulation (Narrow FM)
AM AM
AM AM AM
: Amplitude Modulation
4. Press the [ BAND
(
SET
)] key momentarily to save the new setting, then press and hold in
the [
BAND
(
SET
)] key for 1/2 second to exit to normal operation.
Unless you have a compelling reason to do so, leave the Automatic Mode Selec-
tion feature on so as to save time and trouble when changing bands. If you make
a mode change for a particular channel or station, you can always store that one channel
into memory, as the mode setting will be memorized along with the frequency informa-
tion.
A
DVANCED
O
PERATION