I Duplex Operation - Icom IC-R20 Instruction Manual

I Duplex operation

Duplex communication uses 2 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. 26)
D D Setting
q Set the receive station frequency
w Push [8 SET] for 1 sec. to enter set mode.
eRotate [R-DIAL] to select "SET EXPAND" item, then push
[8 SET].
[R-DIAL]
DUALWATCH
SET
8
.
(repeater output frequency)
r Rotate [R-DIAL] to select "ON."
tRotate [R-DIAL] to select "OFFSET FREQ," then push
[8 SET].
yRotate [R-DIAL] to set the desired offset frequency within
0.00000–159.99999 MHz range, then push [8 SET].
• The tuning step, selected in VFO mode, is used for setting.
• Push [VFO MHz] for 1 sec. then rotate [R-DIAL] to change the
frequency in 1 MHz steps, or push for 1 sec. again then rotate
[R-DIAL] to change the frequency in 10 MHz steps. (Each push
for 1 sec. toggles 1 MHz or 10 MHz tuning steps.)
u Rotate [R-DIAL] to select "DUPLEX."
iRotate [R-DIAL] to select "–DUP" or "+DUP."
o Push [DUALWATCH] to exit set mode.
!0 P ush and hold [SQL] to monitor the transmit station fre-
quency
(repeater input frequency)
BASIC OPERATION
EXPANDED SET MODE
USING
directly.
4
4
20