20
4
BASIC OPERATION
4
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
(repeater output frequency)
.
w
Push
[8 SET]
for 1 sec. to enter set mode.
e
Rotate
[R-DIAL]
to select “SET EXPAND” item, then push
[8 SET]
.
r
Rotate
[R-DIAL]
to select “ON.”
t
Rotate
[R-DIAL]
to select “OFFSET FREQ,” then push
[8 SET]
.
y
Rotate
[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.”
i
Rotate
[R-DIAL]
to select “–DUP” or “+DUP.”
o
Push
[DUALWATCH]
to exit set mode.
!0
Push and hold
[SQL]
to monitor the transmit station fre-
quency
(repeater input frequency)
directly.
DUPLEX
-
-DUP
>OFF
-
+DUP
----------------
OFFSET
-
FREQ
----
0.000.00
----------------
[R-DIAL]
DUALWATCH
SET
8
SET TS:5.0kHz
√
MODE
ANL
AFC
TSQL
FM
146 010
PSKIP
-DUP
***
-
SET
-
MODE
-
***
>SET
-
EXPAND
-
FM
-
ANTENNA
-
AM
-
ANTENNA
-
AF
-
FILTER
-
ANL
-
NOISE
-
BLANKER
----------------
■
Duplex operation
USING
EXPANDED SET MODE