Uniden CB RADIO UH012 - Manual (Page 6)

TX SCAN DUP
A S C Technology
Advanced Signal Clarity
UH012
5
UHF CB Repeaters are used to retransmit or replay your signal. Repeaters will extend the range of your radio
and overcome the shielding effect caused by solid obstructions. In normal Simplex operation, your radio 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.
Selecting a Channel
Turn the Rotary Channel Selector to select the
desired channel.
Transmitting
Select the desired channel. Press the Microphone’s PTT button, hold it approx. 7cm from your
mouth and speak normally into the microphone.The TX LED will light.
Release the PPT button to end the transmission and listen for a reply.
Using Repeater Channels
The Signal coming from your radio is received by the Repeater Station and then retransmitted 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.
Operation
UNIDEN Model UH-012 CB Radio