Duplex Operation; Setting Frequency Offset; Reverse Duplex Function; Setting Duplex Direction - Icom IC-T70A Instruction Manual

■ Duplex operation

D Setting frequency offset
q Push [SET] to enter the Set mode.
w Rotate [DIAL] to select the frequency
offset set item, then rotate [VOL] to set
the frequency offset.
e Push [V/M/C] to return to the frequency
display.
Frequency offset setting
D Setting duplex direction
➥ Push and hold [DUP](M) for 1 sec. to select "DUP–" (nega-
tive offset) or "DUP" (positive offset).
• "DUP–" or "DUP" indicates the transmit frequency for minus
shift or plus shift, respectively.
• While continuing to push [DUP](M), rotate [DIAL] also selects
a duplex setting.
• When the frequency offset is 0.6 MHz
[DIAL]
–Duplex example
+Duplex example
[DIAL]
[VOL]
0.6 MHz offset
Receiving Transmitting
REPEATER AND DUPLEX OPERATIONS
U.S.A. and Korean versions:
The auto repeater function has priority over the manual duplex
setting. If the transmit frequency changes after setting, the
auto repeater function may have changed the duplex setting.
Turn the auto repeater function OFF to prevent this (p. 27).

■ Reverse duplex function

When the reverse duplex function is ON, the receive and
transmit frequencies are reversed. The function can be set in
the Set mode.
q Push [SET] to enter the Set mode.
w Rotate [DIAL] to select the reverse duplex set item, then
rotate [VOL] to turn the function ON or OFF.
Reverse duplex setting
e Push [V/M/C] to return to the frequency display.
Each receive and transmit frequency is shown in the table
below, with the following configurations;
Input freq.: 145.300 MHz, Direction: – (down), Offset: 0.6 MHz
Reversed RX freq. TX freq.
OFF 145.300 MHz 144.700 MHz
ON 144.700 MHz 145.300 MHz
5
• "DUP–" or "DUP" blinks
when the reverse duplex
function is ON.
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