15UNIDEN Model uh710sx/uh720sx UHF CB RadioOPERATIONTransmit Power SelectThe uh720sx has three transmit power levels: 2 Watt, 0.5 Watt and 0.1 Watt.The uh710sx 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.’TX Power Low TX Power Middle TX Power HighTransmitting on a higher level will use more Battery power butwill enable you to transmit further.ScanningThe uh710sx/uh720sx has two types of scanning; Open Scanning (OS) andGroup Scanning (GS), OS Scan searches all the channels and frequencies inits memory continuously. GS Scan is similar to OS scan but has the addedability to monitor the 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 CH01when switched on.2. PressCALLSCAN and scanning starts.SCAN flashes during scanning.