Repeater And Duplex Operations; Repeater Operation - Icom IC-80AD Instruction Manual

REPEATER AND DUPLEX OPERATIONS

Repeater operation

When using a repeater, the transmit frequency is shifted from
the receive frequency by the offset frequency
called duplex operation. It is convenient to program repeater
information into memory channels
Repeater
144.700 MHz
145.300 MHz
Station A
q Set the receive frequency
w Set the shift direction of the transmit frequency.
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
. This is
(p. 119)
.
(p. 94)
Uplink
144.700 MHz
(transmitting freq.)
Downlink
(receiving freq.)
145.300 MHz
Station B
.
(repeater output frequency)
(DUP– or
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
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.
5
1
2
3
4
T
5
6
7
8
9
10
11
While transmitting
12
13
14
15
16
17
18
19
29