![background image](http://html.mh-extra.com/html/icom/ic-91a/ic-91a_instruction-manual_612374037.webp)
31
6
REPEATER AND DUPLEX OPERATIONS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
■
Duplex operation
D
Setting offset frequency
q
Enter “OFFSET FREQ” in DUP/TONE… set mode. (p. 97)
w
Rotate
[DIAL]
†
to set offset frequency.
• 1 MHz and 10 MHz tuning steps are available by pushing and
holding
[MHz](VFO)
for 1 sec.: push
[MHz](VFO)
to cancel it.
e
Push
[
ï
](5)
(or
[
Ω
Ω
](4)
)
to return to DUP/TONE… set mode,
and push
[MENU/LOCK]
to return to frequency indication.
D
Setting duplex direction
➥
Push and hold
[DUP](4)
for 1 sec. to select “–DUP” or
“+DUP”.
• “–DUP” or “+DUP” indicates the transmit frequency for minus
shift or plus shift, respectively.
• When offset frequency is 0.6 MHz.
U.S.A. and Korean versions:
Auto repeater function has priority over the manual duplex
setting. If the frequency changes after setting, the auto re-
peater function may have changed the duplex setting.
–Duplex example
+Duplex example
Receiving
Transmitting
A
TONE
TONE
FM
FM
145300
P SKIP
SKIP
-DUP
-DUP
A
TONE
TONE
FM
FM
144700
P SKIP
SKIP
-DUP
-DUP
Receiving
Transmitting
A
TONE
TONE
FM
FM
145300
P SKIP
SKIP
+DUP
+DUP
A
TONE
TONE
FM
FM
145900
P SKIP
SKIP
+DUP
+DUP
5.0 MHz offset
No offset frequency
5.000.00
5.000.00
OFFSET FREQ
0.000.00
0.000.00
OFFSET FREQ
MENU screen
➪
DUP/TONE…
➪
OFFSET FREQ
(Push
[MENU/LOCK]
) (Rotate
[DIAL]
†
, then push
[
ï
](5)
†
.)
Although
[DIAL]
and
[
ï
](5)
are used for description in this
section,
[
∫
∫
](2)
/
[
√
√
](8)
and
[
≈
≈
](6)
are available instead of
[DIAL]
and
[
ï
](5)
.
†
[DIAL]
↔
[
∫
∫
](2)
/
[
√
√
](8)
[
ï
](5)
↔
[
≈
≈
](6)