Basic Operation 13SquelchThe radio’s squelch allows the radio to unmute onlywhen the strength of the incoming signal is above apredetermined threshold. This means that only signals ofreasonable intelligibility are made audible.Monitor The monitor function is used to check that the channel isclear before you make a call. While monitor is on, thegreen LED flashes continually.Activating Monitor1. Press the monitor function key and monitor overridesthe signalling mute, allowing you to hear any trafficon the channel.Note: Your radio may be programmed toactivate monitor whenever the microphoneis off the microphone clip.2. Press the monitor function key again to turn monitoroff, and the green LED no longer flashes.Activating Squelch Override1. Press and hold the monitor function key for longerthan one second to override both squelch and thesignalling mute.This allows you to hear even faint and noisy signals.2. Press the monitor function key again to return theradio to a quiet state.Note: Squelch cannot be overridden whenthe radio is scanning.