Icom IC-F70 / F80 Instruction Manual - Page 17

BASIC OPERATION 3 I Call procedure I Receiving and transmitting When your system employs tone signaling (excluding CTCSS Receiving: and DTCS), the call procedure may be necessary prior to voice q Rotate [VOL] to turn the power ON. 3 transmission. The tone signalling employed may be a selec- w Push [CH Up] or [CH Down], or rotate [ROTARY SELEC- tive calling system which allows you to call specific station(s) TOR]* to select a channel in sequence. only and prevent unwanted stations from contacting you. *Depending on the pre-setting. q Select the desired TX code channel, 2/5-tone code, Individual ID code* or Talkgroup ID code* according to e When receiving a call, adjust the audio output level to a comfortable listening level. your System Operator's instructions. • This may not be necessary depending on programming. Transmitting: • Refer to pgs. 14-16 for selection. Wait for the channel to become clear to avoid interference. *Digital mode operation only. w Push the call key (assigned to one of the dealer program- q Push [CALL] when initiating a call from your side. • Coded audio may be heard from the transceiver, then " " mable keys; except for the Digital mode operation) or [PTT]. appears. e After transmitting, the remainder of your communication can be carried out in the normal fashion. Selective calling Non-selective calling • This operation may not be necessary depending on your signaling system. Ask your dealer for details. w While pushing and holding [PTT], speak into the microphone at your normal voice level. e 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) from your mouth, then speak into the microphone at a normal voice level. 13