Uniden UH038SX-2NB Owner's Manual page 8

Operation
Automatic Squelch Feature
The UH038SX-2NB is equipped with an Automatic Squelch System
which shuts off weak transmissions and unwanted noise.
Monitor
This feature enables users to listen for weak signals on the current
channel at the press of a key.
To use monitor
1. Press MON key. The RX icon will flash.
2. Release within 1.5 seconds and the unit exits
Monitor mode.
3. Press and hold MON key for 2 seconds for continuous listening.
The receiver circuit will stay open, letting in both the noise & weak
signals. The RX icon flashes in this status.
4. To return to normal Receive mode press MON key. The RX icon
disappears or stops flashing in this status.
Scanning
The scan function scans all channels which are stored in the SCAN
CHANNEL MEMORY and stops at an active channel. If a PRIORITY
channel has been selected then this channel will be monitored for activity
every 3 seconds. When the signal stops, the UH038SX-2NB waits
2 seconds (Reply Delay) before scanning resumes.
To initiate scanning;
1. Press MEM / SCN key momentarily to begin
scanning.
The SCAN icon is displayed.
2. Press SELECT / , MEM / SCN , / CALL
or PTT key to cancel.
When scan stops at a busy channel, pressing
CH / HI / LO key will resume scan.
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UNIDEN UH038SX-2NB UHF CB Transceiver