ICOM IC-M503 User Manual

HM-134 REMOTE-CONTROL MICROPHONE

➥Enter set mode when pushed and held while turning

power ON. (pgs. 14, 37)

t DIAL SWITCH [DIAL]

➥Selects and toggles the regular channels when pushed

momentarily. (pgs. 6, 7, 32)

➥While pushing and holding [H/L], push to select channel

group. (pgs. 6, 7 and 32)

• The “ EUR” version has International channels only and this

function is not available.

y DUAL-WATCH/INTERCOM SWITCH [DUAL•IC]

➥Push to start dualwatch or tri-watch. (pgs. 11, 36)
➥Push and hold for 1 sec. to activate the intercom func-

tion. (pgs. 17, 38)

➥Push to stop dualwatch or tri-watch when either is acti-

vated.

➥While pushing and holding the switch, you can call the

IC-M503 in intercom mode. (pgs. 17, 38)

u SQUELCH/MONITOR/LOCK SWITCH [SQL•MONI•L]

➥After pushing [SQL], [Y]/[Z] sets the squelch threshold

level. (p. 33)

➥Push and hold [SQL•MONI] for 1 sec. to turn the monitor

function ON. (p. 34)

➥While pushing and holding [H/L], push [SQL•MONI•L] to

toggle the microphone key lock function ON or OFF. (p.
34)

• “ T ” appears while key lock function is in use.
• [PWR], [PTT], [VOL], [SQL] and [H/L] still function when the

microphone key lock function is turned ON.

➥Advances the cursor while in memory name program-

ming condition. (pgs. 9, 38)

i VOLUME/DIMMER SWITCH [VOL•DIM]

➥After pushing [VOL], [Y]/[Z] adjusts the audio level.
➥Push and hold [VOL•DIM] for 1 sec. to adjust the bright-

ness of the LCD and switch backlight. (p. 34)

➥Moves the cursor backward while in memory name pro-

gramming condition. (pgs. 9, 38)

o TRANSMIT POWER SWITCH [H/L]

➥When pushed, toggles high and low power. (pgs. 8, 33)

• Some channels are set to low power only.

➥While pushing and holding this switch, other switches

perform secondary functions.

➥Toggles the all key lock function ON or OFF when

pushed and held while turning power ON. (p. 34)

• “ T ” flashes while the all key lock function is in use.
• Only [PWR] and [PTT] function when the all key lock function

is in use.

!0 SCAN SWITCH [SCAN•TAG] (pgs. 13, 36)

➥Starts and stops normal or priority scan when tag chan-

nels are programmed.

➥Push and hold [SCAN•TAG] for 1 sec. to set the dis-

played channel as a tag (scanned) channel.

➥While pushing and holding [H/L], push and hold for 3

sec. to clear all tag channels.

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