35BACKGROUND OPERATIONSYour dealer can activate a variety of transceiver functions to perform without anyadditional operation on your part.TiMe-ouT TiMer (ToT)The Time-out Timer is used to prevent any caller from using a channel for anextended period of time.If you continuously transmit for a period of time that exceeds the programmedtime, the transceiver will stop transmitting and an alert tone will sound. To stopthe tone, release the microphone PTT switch. Your dealer can program the TOTtime in the range of 5 seconds to 20 minutes.If programmed by your dealer, a pre-alert tone will sound before the timer expires.Also, if programmed by your dealer, you may have to wait for a short durationbefore you can continue to transmit. If you press the microphone PTT switchbefore the timer has been reset, an alert tone will sound and the transceiver willnot enter transmit mode.SignAl STrengTh indicATorThe signal strength indicator displays the strength of received signals.Strong signalSufficient signalWeak signalVery weak signalOn Trunking channels, the antenna indicator flashes while searching for a controlchannel.coMpAnderThe compander is programmed only for specific Conventional FM channels. If ithas been programmed by your dealer, transmitted signals are compressed beforebeing sent and received signals are expanded when they arrive.• Your dealer must set the compander for both the transmit side and the receive side inorder for the compander to operate.This background feature allows higher clarity of signals, avoiding excessive noiseand interference. This feature is not used on digital channels, as they are notsusceptible to noise and interference.