25
ADVANCED OPERATION
Frequency Offset Defaults
When you select a frequency, the HTX-242 defaults to the following
frequency offsets if auto duplex is turned on:
The default offset is 600 kHz. For example, if you tune to receive
146.940 MHz, the HTX-242 automatically transmits at 146.340
MHz (600 kHz less than 146.940).
Turning Auto Duplex On and Off
The HTX-242 can automatically select the correct duplex offset for
frequencies normally assigned to repeaters and selects no offset
(simplex) for other frequencies. Follow these steps to turn this
option on or off.
1. Press
VFO
.
2. Hold
F
for at least 1 second.
FUNC
flashes.
3. Press
MR
.
4. Repeatedly press
▲
or
▼
until the HTX-242 displays
AS
and
either
on
(if the option is on) or
oFF
(if the option is off).
5. Rotate
TUNE
, or press
UP
or
DOWN
on the microphone, to
select
on
or
oFF
.
6. Press
MR
or PTT to save the setting.
Receive Frequency Transmit Offset
Below 144.600 MHz No offset (Simplex)
144.600 to 144.905 MHz + offset
144.910 to 145.205 MHz No offset (Simplex)
145.210 to 145.505 MHz – offset
145.510 to 146.005 MHz No offset (Simplex)
146.010 to 146.375 MHz + offset
146.380 to 146.605 MHz No offset (Simplex)
146.610 to 146.995 MHz – offset
147.000 to 147.395 MHz + offset
147.400 to 147.595 MHz No offset (Simplex)
147.600 to 147.995 MHz – offset
148.000 MHz and above No offset (Simplex)
Note:
Outside these ranges, the HTX-242 operates with no offset.
