To Operate Uh785 In Duplex Mode - Uniden UH785 Series Owner's Manual

Operation
With Duplex operation, the signal coming from your radio is received
by the Repeater station and then re-transmitted at the same time on
another channel.
For example:
1. CH01 is on Duplex Mode - will receive on CH01 but Transmit on CH31
2. CH41 is on Duplex Mode - will receive on CH41 but Transmit on CH71,
etc... Refer to UHF-CB Channel & Frequencies table on p.28 - p.29.
If you transmit on CH01 Duplex mode, you are actually transmitting
on CH31, and the repeater station down-converts your signal and
retransmits on CH01.
To Operate in Duplex Mode (using a Repeater)
Only channels 01 - 08 and 41 - 48 are available for Duplex.
1. Press [MENU].
2. Scroll down the list to Duplex (rep.) and press [MENU].
3. Select ON or OFF.
4. Save the setting by pressing and holding [MENU].
5. Press & hold [MENU] again, or press [PTT], to exit menu mode.
UH755 Repeater CH Display
DUP icon appears beside the channel
when Duplex setting is enabled for a
duplex capable channel.
Search online for available UHF-CB repeaters in your area.
NOTE
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UNIDEN UH785 Handheld UHF-CB Transceiver