29n MonitorYour dealer can program a key with the Monitorfunction one of four ways:A Press and hold the Monitor key to hear backgroundnoise. Release the key to return to normal operation.B Momentarily press the Monitor key to hearbackground noise. Press the key again to return tonormal operation.C Press and hold the Monitor key to deactivate QT,DQT, or 2-Tone signalling. Release the key to return tonormal operation.D Momentarily press the Monitor key to deactivate QT,DQT, or 2-Tone signalling. Press the key again toreturn to normal operation.You can use the Monitor key to listen to weaksignals that you cannot hear during normal operationand to adjust the volume when no signals arepresent on your selected channel.n Beginning/ End of Transmission SignalYour dealer can enable or disable the Beginning/End of Transmission identification signals. Thesesignals are used to access and release somerepeaters and telephone systems.To send a Beginning of Transmission signal, eitherpress the PTT switch, or press the key two times.To send an End of Transmission signal, eitherrelease the PTT switch or press the key followedby the # key.• Ask your dealer which method has been activated onyour transceiver.