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4
BASIC OPERATION
■ Duplex operation
Duplex communication uses two different frequencies for trans-
mitting and receiving. Generally, duplex is used in communi-
cation through a repeater, some utility communications, etc.
During duplex operation, the transmit station frequency is
shifted from the receive station frequency by the offset fre-
quency. Repeater information (offset frequency and shift di-
rection) can be programmed into memory channels. ((p. 16))
D D Setting
q Push [SET•LOCK] to enter set mode.
wPush [SET•LOCK] or [S.MW•MW] several times until the
duplex direction setting item "OFF
" appears.
dP
[SET•LOCK]
[DIAL]
[S.MW•MW]
eRotate [DIAL] to select the duplex direction, "DUP–
"DUP+
."
dP
rPush [SET•LOCK] once to select the offset frequency set-
ting item.
15
[
," "DUP–
" or "DUP+
dP
dP
" or
dP
tRotate [DIAL] to set the desired offset frequency within
0.000–1000.000 MHz range.
• The tuning step, selected in VFO mode, is used for setting.
• Push [V/MHz• SCAN] then rotate [DIAL] to change the fre-
quency in 10 MHz steps, or push again then rotate [DIAL] to
change the frequency in 1 MHz steps. (Each push toggles
1MHz, 10 MHz or selected tuning steps.)
yPush [TS•MODE] or any switch below the display to exit
set mode.
D D Operation
q Set the receive station frequency
wPush [MONI•T/T-SCAN] to monitor the transmit station fre-
quency
(repeater input frequency)
[MONI•T/T-SCAN]
.
(repeater output frequency)
directly.
Frequency shifts
the offset frequency
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