24CALLING ALERTThe Calling Alert tone alerts party members that you aremaking a call. To make a call:1 Briefly press and hold the key programmed as[Calling Alert].• Release the key to end the tone transmission.2 Press the PTT switch and speak into the microphone inyour normal speaking voice.KEY LOCKPress and hold the key programmed as [Key Lock] for2 seconds to lock the transceiver keys. Press and hold the[Key Lock] key again to unlock the keys.• “LOCKED” appears when a key is pressed while the keysare locked.Note: You can still use the following keys and functions when KeyLock is activated: [Emergency], [Lamp], [Monitor], [MonitorMomentary], [Squelch Off], [Squelch Off Momentary], [KeyLock], PTT.SEND THE GPS DATAPress the key programmed as [Send the GPS Data] when theGPS unit has been installed to send your positioning data tothe base station.EMERGENCY CALLSIf your transceiver has been programmed with the Emergencyfunction, you can make emergency calls.1 Press and hold the key programmed as [Emergency].• Depending on the delay time programmed into yourtransceiver, the length of time you must hold the Emergencykey will vary.• When the transceiver enters Emergency mode, the transceiverwill change to the Emergency channel and begin transmittingbased on how the transceiver is set up.