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3
BASIC OPERATION
3
Call procedure
When your system employs tone signaling (excluding CTCSS
and DTCS), the call procedure may be necessary prior to voice
transmission. The tone signalling employed may be a selec-
tive calling system which allows you to call specic station(s)
only and prevent unwanted stations from contacting you.
q Select the desired TX code channel, 2/5-tone code,
Individual ID code* or Talkgroup ID code* according to
your System Operators instructions.
This may not be necessary depending on programming.
Refer to pgs. 1416 for selection.
*Digital mode operation only.
w Push the call key (assigned to one of the dealer program-
mable keys; except for the Digital mode operation) or [PTT].
e After transmitting, the remainder of your communication
can be carried out in the normal fashion.
Receiving and transmitting
Receiving:
q Rotate [VOL] to turn the power ON.
w Push [CH Up] or [CH Down], or rotate [ROTARY SELEC-
TOR]* to select a channel in sequence.
*Depending on the pre-setting.
e When receiving a call, adjust the audio output level to a
comfortable listening level.
Transmitting:
Wait for the channel to become clear to avoid interference.
q Push [CALL] when initiating a call from your side.
Coded audio may be heard from the transceiver, then “”
appears.
This operation may not be necessary depending on your signal-
ing system. Ask your dealer for details.
w While pushing and holding [PTT], speak into the micro-
phone at your normal voice level.
e Release [PTT] to return to receive.
IMPORTANT: To maximize the readability of your signal;
1. Pause briey 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.
Selective calling
Non-selective calling
IC-F70_F80-1.qxd 05.1.18 4:26 PM Page 13 (1,1)
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