123 BASIC OPERATION Call procedureWhen your system employs tone signaling (excluding CTCSSand DTCS), the call procedure may be necessary prior to voicetransmission. The tone signalling employed may be a selec-tive calling system which allows you to call specific station(s)only and prevent unwanted stations from contacting you.q Select the desired TX code channel or 2/5-tone codeaccording to your System Operator’s instructions.• This may not be necessary depending on programming.• Refer to pgs. 13 or 14 for selection.w Push the call key (assigned to one of the dealer program-mable keys: [Up], [Down], [P0], [P1], [P2], [P3],[Emergency] and [Monitor]) or [PTT].e After transmitting a 2/5-tone code, the remainder of yourcommunication can be carried out in the normal fashion. Receiving and transmittingNOTE: Transmitting without an antenna may damage thetransceiver. See p. 1 for antenna attachment.Receiving:q Rotate [VOL] to turn the power ON.w Push [UP] or [DOWN], or rotate [ROTARY SELECTOR]*to select a channel, in sequence.*Depending on the pre-setting.e When receiving a call, adjust the audio output level to acomfortable listening level.Transmitting:Wait for the channel to become clear to avoid interference.q While pushing and holding [PTT], speak into the micro-phone at a normal voice level.w Release [PTT] to return to receive.IMPORTANT: To maximize the readability of your signal;1. Pause briefly after pushing [PTT].2. Hold the microphone 5 to 10 cm from your mouth, thenspeak into the microphone at a normal voice level.Selective callingNon-selective calling