Icom IC-M503 instruction manual Receiving and transmitting

Models: IC-M503

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•Further adjustment of audio level may be necessary at this point.

Receiving and transmitting

qPush [PWR] to turn power ON.

wPush [VOL], then [Y]/[Z] to adjust audio output level.

Push [SQL], then [Y]/[Z] to mute any audio noise, if necessary. e Push [Y]/[Z] to select the desired channel.

When receiving a signal, “ Manual background ” appears and audio is emitted from the speaker.

Further adjustment of audio level may be necessary at this point.

Use the optional voice scrambler function for privacy. (pgs. 10, 35)

rPush [H/L] to select the output power, if necessary.

“LOW” appears when low power is selected.

Choose low power for shorter, high power for longer distance communications.

Some channels are low power only.

HM-134 REMOTE-CONTROL MICROPHONE 12

tPush and hold [PTT] to transmit, then speak into the mi- crophone.

Manual background” appears.

Channel 70 cannot be used for transmission (for GMDSS use).

yRelease [PTT] to receive.

Manual background IMPORTANT: To maximize the readability of your trans-

Manual background mitted signal (voice), pause a few sec. after pushing [PTT],

Manual background hold the microphone 10 to 15 cm (4 to 6 inches) from your Manual background mouth and speak at a normal voice level.

qTurn power ON

tPush to Manual background transmit

yRelease to receive

eSet channel

Manual backgroundManual backgroundr Set output power

wSet volume

w Set squelch, if required

tSpeak into microphone

33

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Icom IC-M503 Receiving and transmitting, Further adjustment of audio level may be necessary at this point