21OperationUNIDEN MHS050 Handheld VHF Marine TransceiverPower SaveBattery Save feature extends the battery life by switching the receivercircuit power ON and OFF. This feature automatically activates duringstandby mode (RX mode without signal).Back LightingThe Liquid Crystal Display (LCD) is backlit for easy viewing at night or inlow light situations. The back lighting automatically switches ON everytime a key (except PTT and BOOST) is pressed. It turns OFF 10 secsafter the last key is pressed.Monitor1. Press (MON) to start monitoring one channelwith fixed (open) squelch.2. Press and hold (MON) for 2 seconds to holdthe monitor status on. All channel indicatorswill start to flash.3. Press (MON) key again to release themonitoring status.NOTEMonitor is not available in scan mode or triple watch mode.TRILOMEMLO LOTRILOTriple Watch - 1 Triple Watch - 2Mem Monitor