16UNIDEN UH5000 UHF CB TransceiverOperation2. To deactivate SCAN, press .Open Scan (OS) ModeAllows continuous scanning of all selected channels. If an active channelis found, scanning will stop on that channel. If the received signalceases, the unit will wait 3 seconds for the signal to return, otherwisescanning resumes. After transmission in scan mode, the unit will wait 20seconds for the signal to return, otherwise scanning resumes. To skipthe active channel, turn the Channel Selector.Group Scan (GS) Mode & Priority WatchIncludes the accessory feature, Priority Watch, which allows you tomonitor the Instant Priority Channel while scanning.To use GS Mode Scanning;1. Press 3 times. Scn shows and the oS/GS setting flashes.2. Turn the Channel Selector or press / to change the setting to GS.3. Press to store the setting.4. Press and hold to save & exit the menu mode.GS Scanning checks the Instant Priority Channel for activity every 1.5seconds.