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15
4
BASIC 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)
DD
Setting [
qPush [SET•LOCK] to enter set mode.
wPush [SET•LOCK] or [S.MW•MW] several times until the
duplex direction setting item “OFF
dP,” “DUP– dP” or “DUP+
dP” appears.
eRotate [DIAL] to select the duplex direction, “DUP–
dP” or
“DUP+
dP.”
rPush [SET•LOCK] once to advance to the offset frequency
setting item.
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 key below the display to exit set
mode.
DD
Operation
qSet the receive station frequency (repeater output frequency).
wPush [MONI•T/T-SCAN] to monitor the transmit station fre-
quency
(repeater input frequency) directly.
[MONI•T/T-SCAN]
Frequency shifts
the offset frequency
[DIAL]
[S.MW•MW]
[SET•LOCK]
■ Duplex operation