Icom IC-460, IC-450 instruction manual Call procedure, Receiving and transmitting

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3 CONVENTIONAL OPERATION

Call procedure

When your system employs tone signalling (excluding CTCSS and DTCS), the call procedure may be necessary prior to voice trans- mission. The tone signalling employed may be a selective calling system which allows you to call specific station(s) only and prevent unwanted stations from contacting you.

qSelect the desired TX code channel or 2/5-tone code according to your System Operator’s instructions.

This may not be necessary depending on programming.

Refer to pgs. 15, 16 for selection.

wPush the call switch (assigned to one of the dealer programma- ble switches: [P0], [P1], [P2], [P3], [Red], [] and []).

eAfter transmitting a 2/5-tone code, the remainder of your com- munication can be carried out in the normal fashion.

Selective calling

Non-selective calling

CONVENTIONAL OPERATION 3

Receiving and transmitting

NOTE: Transmitting without an antenna may damage the trans-

 

ceiver. See p. 1 for antenna attachment.

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Receiving:

qRotate [VOL] to turn power ON.

wPush [] or [ ] to select a channel.

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 at left 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 (2 to 4 inches) from your mouth, then speak into the microphone at a normal voice level.

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Contents IF50 Safety Training Information FCC caution Explicit DefinitionsTable of Contents Accessory attachments AccessoriesFront, top and side panels Panel DescriptionFunction display Programmable function keys Dtmf Autodial KEY Tone Channel Enter KEYTalk around KEY WIDE/NARROW KEYChannel selection Turning power onReceiving and transmitting Call procedureTX code channel selection Transmitting notesDtmf transmission User set modeEntering the user set mode Scrambler functionIndividual call Default settingBiis Operation Receiving a callDisplaying the received call record Queue indication When a record is available When no record is availableGroup call Calling back from the queue channel Using call memoryTransmitting a call For your information Receiving a messageDirect code entry Receiving a status messageReceived message selection When a message is available When no message is availableReceiving an SDM Transmitting a status Transmitting a statusTransmitting an SDM GeneralDigital ANI Position data transmissionPrinter connection PC connectionPriority a channel selection Auto emergency transmissionStun function Biis indicationRecommendation Battery ChargingBattery charging Eyelet Optional battery chargersRegular charging with the BC-152 For your convenienceDesktop charger adapter Connectors Plugs AD-100 installationRapid charging with the BC-121N+AD-100 Rapid charging with the BC-119N+AD-100Optional battery case Attachment SPEAKER-MICROPHONEOptional HM-138 description BP-226 BP-227 Options6294H-1EX