Operation
Range
Automatic Squelch Feature
The UH405SX-2NB is equipped with an Automatic Squelch system which
mutes the audio in the presence of weak transmissions and unwanted noise.
Monitor
This feature enables users to listen in for weak signals
on the current channel at the press of a button.
To use monitor
• Press and hold Volume or for 2 seconds. When Monitor is on you
will hear noise if there is no signal.
• For continuous listening, the receiver circuit will stay open, letting in both
the noise and weak signals.
• To return to normal receive mode press and hold Volume or for 2
seconds or press
key once.
Reduced Range
Maximum Range
6
UHF CB Transceiver
UNIDEN UH405SX-2NB
