92BASIC OPERATION2■ Call procedureWhen your system employs tone signaling (excluding CTCSSand DTCS), a 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 code ac-cording to your System Operator’s instructions.• This may not be necessary depending on programming.• Refer to pages 10 and 11 for selection.w Push [Call] (assigned to one of the dealer programmablekeys).e After transmitting, the remainder of your communicationcan be carried out in the normal fashion.Selective calling Non-selective calling■ Receiving and transmittingReceiving:q Hold down [ ] for 1 second to turn the power ON.w Push [CH Up] or [CH Down] to select the conventionalsystem channel, in sequence.e When receiving a call, rotate [VOL] to adjust the audio out-put level to a comfortable listening level.Transmitting:Wait for the channel to become clear to avoid interference.q Take the microphone off hook.• 2/5-Tone mute may be released. (The ‘audible’ condition is se-lected and BUSY indicator lights green.)• A priority channel may be selected automatically.w Wait for the channel to become clear.• The channel is busy when BUSY indicator lights green.e While holding down [PTT], speak into the microphone atyour normal voice level.r 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 (2 to 4 inches) fromyour mouth, then speak at a normal voice level.