15OperationUHF CB RadioUNIDEN UH720SX-NB/UH710SX-NBTransmit Power SelectThe UH720SX-NB has three transmit power levels: 2 Watt, 0.5 Watt and 0.1 Watt.The UH710SX-NB has three transmit power levels: 1 Watt, 0.5 Watt and 0.1 Watt.To change your transmit power level:1. Press while in the ’power middle level’ to change to ’power high level.’2. Press while in the ’power high level’ to change to the ’power low level.’3. Press while in the ’power low level’ to change to ’power middle level.’NOTETransmitting on a higher level will use more Battery power butwill enable you to transmit further.ScanningThe UH710SX-NB/UH720SX-NB has two types of scanning; Open Scanning(OS) and Group Scanning (GS), OS Scan searches all the channels andfrequencies in its memory continuously. GS Scan issimilar to OS scan but has the added ability to monitorthe priority channel every 1.5 seconds.Scanning allows you to search for activechannels programmed in the OS or GS memory.To initiate scanning,1. Assuming the unit is on CH01 when switched on.2. Press and scanning starts.SCAN flashes during scanning.TX Power Low TX Power Middle TX Power High