Operation Manual

16
4
BASIC OPERATION
New2001
4
Duplex communication uses two different frequencies for
transmitting and receiving. Generally, duplex is used in com-
munication through a repeater, some utility communications,
etc.
During duplex operation, the transmit station frequency is
shifted from the receive station frequency by the frequency
offset. Repeater information (frequency offset and shift di-
rection) can be programmed into memory channels. (p. 19)
D Setting
q Set the station’s receive frequency (repeater output frequen-
cy)
.
w Hold down [SET](TS) for 1 second to enter the Set mode.
e
Rotate [DIAL] to select the “EXPAND” item.
• “EXPAND” disappears after 1 second and “OFF” (default) and
“EX” appear.
[DIAL]
Expand set mode item
After 1 sec.
Setting display
r While holding down [FUNC], rotate [DIAL] to select “ON.”
t
Rotate [DIAL] to select the “OFFSET” item.
• “OFFSET” disappears after 1 second and “0.600” (default) and
“OW” appear.
(Default offset differs depending on the frequency band or
receiver version.)
Frequency offset item Setting display
After 1 sec.
y While holding down [FUNC], rotate [DIAL] to set a desired
frequency offset within 0.000–159.995 MHz range.
• The tuning step, selected in the VFO mode, is used for setting.
u Rotate [DIAL] to select the “DUP” item.
• “DUP” disappears after 1 second and “OFF” (default) and “DP”
appear.
Duplex item Setting display
After 1 sec.
i While holding down [FUNC], rotate [DIAL] to select
“–DUP” or “+DUP.”
o
Push [SET](TS) to exit the Set mode.
!0
Hold down [SQL] to directly monitor the station’s transmit
frequency
(repeater input frequency).
■ Duplex operation
using EXPAND SET MODE