16OperationUNIDEN UH820SX-NB/UH820SX-2NB UHF CB RadioOpen Scan (OS) Mode(The absence of GS icon indicates that the unit is on OS mode)Allows continuous scanning of channels stored in the Open Scan (OS) memory.If an active channel is found, scanning will stop on that channel.NOTEThe factory has preprogrammed all the UHF-CB channels intothe Open Scan channel memory. However, you can change orcustomise the channels by following the steps on programmingScan Channels on page 18.Example. CH40 becomes activeIf the received signal cease, the unit willwait for at least 2 seconds for the signal toreturn, otherwise scanning resumes.To skip the active channel, press (ch) or .Scanning resumes.To deactivate SCAN, press (PTT) or (scan).NOTE1. If SCAN is deactivated while in an active channel, the radiowill stay on that active channel. If no other channels areactive, the radio will reinstate the starting channel.2. If OS Scanning is initiated when there are no channelsprogrammed in OS memory, an error tone will be heard andscanning will not start.HITransmit Power - 1 TRXSCANMOpen Scan (OS) Mode G