22Squelch LevelIf a key has been programmed as [Squelch Level], you can readjust yourtransceiver’s squelch level:1 Press the key programmed as [Squelch Level].• “SL” appears on the display, followed by the current squelch level.2 Press / to select the desired squelch level from 0 to 9.3 Press S, A, C>, or to store the new setting.PUBLIC ADDRESS (PA)The PA system can only be used with an optional relay unit and external speaker.1 Press the key programmed as [Public Address] to activate the Public Addressfunction.• “PA” appears on the display for 1 second.2 Press and hold the PTT switch, then speak into the microphone to make youraddress through the external speaker.3 Press the [Public Address] key again to exit Public Address.HORN ALERTThe Horn Alert function can only be used with an optional relay unit.Press the key programmed as [Horn Alert] to toggle the Horn Alert function ONor OFF.• “HA” appears on the display for 1 second.GPS REPORTIf a GPS unit (NMEA-0183 format) is installed on your transceiver, you can pressthe key programmed as [Send the GPS data] to send your location data.