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Operation
15
UNIDEN XTRAK
UHF CB Transceiver
Using UHF CB Repeater Channels
Normal Simplex operation transmits on one particular frequency and receives on that
same frequency. If there is a barrier that partially blocks your transmitted signal, the
probability of another radio receiving the signal is very slim. Hills, tall buildings, metallic
structures,...etc tend to act as a screen between radios.
Simplex Operation without
the aid of a Repeater station.
To extend the range of your radio and overcome the shielding effect caused by solid
obstructions the Duplex operation transmits on a UHF CB repeater frequency, where a
Repeater Station re-transmits your signal on the frequency used in Simplex Operation.
The signal coming from your radio is received by the Repeater Station and is re-
transmitted at the same time on another channel. This operation is called “Duplexing”.
For example,
CH01 on Duplex Mode will Receive on CH01 but Transmit on CH31
CH02 on Duplex Mode will Receive on CH02 but Transmit on CH32 etc...
If you transmit on CH01 Duplex mode, you are actually transmitting on CH31 the
repeater station down-converts your signal and retransmits on CH01.
Enable / Disable Duplex Mode
Only channels 01-08 and channels 41-48 are available for Duplex.
1. Press
[MENU]
. Press
[UP / DOWN]
until
02 Duplex
is highlighted.
2. Press
[MENU]
to select.
3. Press
[UP / DOWN]
to change the setting between ON or OFF.
4. Press and hold
[MENU]
to save & exit from the menu mode.
The
DUP
icon displays when a selected channel is set to Duplex mode.
NOTE
• Only channels 01-08 and channels 41-48 are available for Duplex.
• Check with your local Retailer for information on available repeaters.
Duplex Operation with the aid
of a Repeater Station.
XTRAK 80 OM_First Lot_print_r5.indd 15
XTRAK 80 OM_First Lot_print_r5.indd 15
4/06/2021 1:30:50 PM
4/06/2021 1:30:50 PM