31
9
DUPLEX OPERATION
Duplex communication uses 2 different frequencies for trans-
mitting and receiving.Generally, duplex is used in communi-
cation through a repeater, some utility communications, etc.
During duplex operation, the transmit station frequency is
shifted from the receive station frequency by the offset fre-
quency.Repeater information (offset frequency and shift di-
rection) can be programmed into memory channels.(p. 14)
This function is not available in the broadcast band (0.495
–1.620 MHz) except for U.S.A.and Canada versions.
qSet the receive station frequency (repeater output fre-
quency).
wSet the shift direction and offset of the transmit station fre-
quency as described below.
ePush and hold [SQL] to monitor the transmit station fre-
quency (repeater input frequency) directly.

◊Duplex shift direction

qPush [FUNC] + [(MODE)SET] momentarily to enter set
mode.
•Select a non-band scope screen in advance for color LCD.
wRotate [DIAL] until “Duplex”or “dUP”appears.
•“dUP”disappears after 1 sec.and “dP”appears when color LCD
is OFF.
ePush [↔] or rotate the tuning dial while pushing [FUNC] to
select “–DUP”or “(+)DUP.”
•“–DUP”or “(+)DUP”indicates the transmit station frequency for
minus shift or plus shift, respectively.
rPush [(MODE)SET] to exit set mode.
Duplex direction set
mode
Tone Squelch: OFF
Tone Freq. : 88.5
Duplex : OFF
Offset Freq.: 0.600
Scan Resume : 2SEC
Tone Squelch: OFF
Tone Freq. : 88.5
Duplex : -DUP
Offset Freq.: 0.600
Scan Resume : 2SEC
Tone Squelch: OFF
Tone Freq. : 88.5
Duplex : +DUP
Offset Freq.: 0.600
Scan Resume : 2SEC
Minus shift Plus shift
FM
P
S1 3 5 7 9
VOL
FM
146.100.000
TS 15.0
DUP
–DUP