Icom iF25 S instruction manual Receiving and transmitting, Transmitting notes, Dtmf transmission

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3 CONVENTIONAL OPERATION

Receiving and transmitting

NOTE: Transmitting without an antenna may damage the trans- ceiver. See p. 2 for antenna attachment.

Receiving:

qRotate [VOL] to turn power ON.

wToggle [CHANNEL SWITCH] (IC-F15S/F25S), rotate [CHAN- NEL SELECTOR] (IC-F15/F25) or push one of [MR-CH 1] to [MR-CH 4] key to select a channel.

For IC-F15S/F25S:

The memory channels 3 and 4 are available when [MR-CH 3] and [MR-CH 4] keys are assigned.

eWhen receiving a call, adjust the audio output level to a comfort- able listening level.

Transmitting:

Wait for the channel to become clear to avoid interference.

qWhile pushing and holding [PTT], speak into the microphone at

a normal voice level.

When a tone signalling system is used, the call procedure de- scribed on p. 13 may be necessary.

wRelease [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, then speak into the microphone at a normal voice level.

CONVENTIONAL OPERATION 3

DTransmitting notes

• Transmit inhibit function

3

The transceiver has several inhibit functions which restrict trans- mission under the following conditions:

-The channel is in mute condition.

-Channel is busy.

-Un-matched (or matched) CTCSS is received.

-The selected channel is a ‘receive only’ channel.

Time-out timer

After continuous transmission for the pre-programmed time period, the time-out timer activates, and causes the transceiver to stop transmitting.

Penalty timer

Once the time-out timer activates, transmission is further inhibited for a period determined by the penalty timer.

DDTMF transmission

If the transceiver has [DTMF Autodial] assigned to it, the automatic DTMF transmission function is available.

Push [DTMF Autodial] to transmit the DTMF code.

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Contents IF15/S Foreword Table of Contents To attach the battery pack Accessory attachmentsBattery pack To release the battery packTo attach the belt clip Jack cover Belt clipTo detach the belt clip Panel Description Front, top and side panelsWhen the power on scan function is turned on ‘ LED indicatorWhen the power on scan function is turned OFF ‘ Programmable function keysDtmf Autodial KEY Conventional Operation Turning power onCall procedure Channel selectionTransmitting notes Receiving and transmittingDtmf transmission Man Down Emergency Call Setting the squelch levelScrambler function UpperOptional unit installation Scrambler unit installationBattery charging Battery ChargingRecommendation AD-106 installation Optional battery chargersRapid charging with the BC-160 Rapid charging with the BC-119N+AD-106 Rapid charging with the BC-121N+AD-106Swivel Belt Clip MB-93 contentsTo attach To detach Options UT-109 #01/UT-110 #01 Scrambler UnitsDOC 0168Memo Intended Country of Use