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, “ ” 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.

” appears.

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

yRelease [PTT] to receive.

IMPORTANT: To maximize the readability of your trans-

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

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

qTurn power ON

tPush to transmit

yRelease to receive

eSet channel

r Set output power

wSet volume

w Set squelch, if required

tSpeak into microphone

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Icom IC-M503 instruction manual Receiving and transmitting, Push H/L to select the output power, if necessary