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22
■
Duplex operation
D
Setting the frequency offset
q
Push
[FUNC](
M
), and then
[SET](8) to enter the Set mode.
w
Push
[
p
] or [
q
] to select the offset item.
• “±” blinks, and the current frequency offset appears.
e
Rotate
[VOL] to select the frequency offset.
• The offset is selected in the
same step as the frequency
tuning step.
• The unit of the frequency offset
is “MHz.”
r
Push
[# ENT] to exit the Set mode.
D
Setting the duplex direction
Push
[FUNC](
M
), and then
[DUP](4) to select “–” (negative
offset) or “+” (positive offset).
• “–” or “+” indicates the transmit frequency is shifted up (+) or down
(–) from the receive frequency.
• A blinking “–” or “+” indicates the Reverse Duplex function is ON, as
described to the right.
• Example— When the frequency offset is 5.0 MHz
D
Reverse Duplex function
When the Reverse Duplex function is ON, the receive and
transmit frequencies are reversed. The function can be
turned ON in the Set mode.
q
Push
[FUNC](
M
), and then
[SET](8) to enter the Set mode.
w
Push
[
p
] or [
q
] to select the Reverse Duplex function
item (REV).
e
Rotate
[VOL] to turn the function ON or OFF.
r
Push
[# ENT] to exit the Set mode.
The receive and transmit frequencies are shown in the table
below, with the following configurations:
Input freq. : 435.300 MHz
Direction : – (down)
Offset
: 5.0 MHz
• “–” or “+” blinks when the Re
-
verse Duplex function is ON.
5
REPEATER OPERATION
Reversed
RX freq.
TX freq.
OFF
435.300 MHz 430.300 MHz
ON
430.300 MHz 435.300 MHz
5.0 MHz offset
While receiving
While transmitting
Duplex
+ (up)
– (down)