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PAGE 13
DUPLEX OPERATION VIA REPEATERS
DETAILED EXPLANATION OF DUPLEX
This feature allows the use of local repeater stations that are designed to automatically re-transmit
your broadcast over large areas, thus increasing the range of the UHF radio. Repeater stations are
privately operated radio systems and are installed throughout Australia each repeater station oper-
ates on preset channels. Check the area you plan on traveling to for any repeaters and their channel.
The duplex mode on the radio helps increase the range of the radio using repeater stations. In duplex
mode, the xed position station forwards the signal it receives from repeater input stations (31-38)/
(71-78) to the corresponding output stations (1-8)/(41-48). Any transmissions sent on non-duplex
channels are sent in simplex mode, or directly between radios without the use of a repeater.
DUPLEX RECEIVE/TRANSMIT CHANNEL GUIDE
The following table displays the receive and transmit channels when using repeater stations:
*Channel 5/35 is emergency channel only
VISUAL REPRESENTATION OF DUPLEX
REPEATER
CHANNEL 2 / 32
OBSTRUCTION (HILL / MOUNTAIN)
VEHICLE 1
RADIO IN DUPLEX MODE ON CHANNEL 2
TRANSMISSION FROM VEHICLE 1 (CHANNEL 32)
TRANSMISSION FROM VEHICLE 1 (CHANNEL 2)
TRANSMISSION FROM VEHICLE 2 (CHANNEL 32)
TRANSMISSION FROM VEHICLE 2 (CHANNEL 2)
VEHICLE 2
RADIO IN DUPLEX MODE ON CHANNEL 2
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