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29
5
REPEATER AND DUPLEX OPERATIONS
1
2
3
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5
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7
8
9
10
11
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14
15
16
17
18
19
N
Repeater operation
When using a repeater, the transmit frequency is shifted from
the receive frequency by the offset frequency
(p. 119)
.
This is
called duplex operation. It is convenient to program repeater
information into memory channels
(p. 94)
.
Station A
Station B
Repeater
145.300 MHz
144.700 MHz
144.700 MHz
145.300 MHz
Uplink
Downlink
(transmitting freq.)
(receiving freq.)
q
Set the receive frequency
(repeater output frequency)
.
w
Set the shift direction of the transmit frequency.
(DUP– or
DUP; see p. 31 for details.)
•
When the auto repeater function is in use (U.S.A. and Korean
versions only), this selection and step
e
are not necessary.
(p. 32)
“DUP–”or “DUP” appears
T
e
Push and hold
[TONE]
(7) for
1 sec. to activate the subaudible
tone encoder, according to re-
peater requirements.
•
“T”
appears.
Refer to p. 119 for tone frequency
settings.
r
Push and hold
[PTT]
to transmit.
•
The displayed frequency automati-
cally changes to the transmit fre-
quency (repeater input frequency).
•
If “OFF” appears, check the off-
set frequency or shift direction.
(p. 31)
While receiving
While transmitting
t
Release
[PTT]
to receive.
y
Push and hold
[SQL]
to check whether the other station’s
transmit signal can be directly received or not.
U.S.A. and Korean versions:
Auto repeater function uses standard values of the re-
peater tone frequency and offset frequency.
Summary of Contents for IC-80AD
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