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12
HM-134 REMOTE-CONTROL MICROPHONE
■ Panel description
The optional HM-134 remotely controls the IC-M503 and pro-
vides an optional intercom function.
q POWER SWITCH [PWR] (pgs. 8, 33)
When the IC-M503 power is turned ON, push and hold for
2 sec. to turn the HM-134 power ON or OFF.
w PTT SWITCH [PTT] (pgs. 8, 33)
Push and hold to transmit; release to receive.
e CHANNEL UP/DOWN SWITCHES [
YY
]/[
ZZ
]
➥Push either switch to change the operating channel, set
mode contents, etc. (pgs. 8, 33)
➥While pushing and holding [VOL], push [Y]/[Z] to adjust
the brightness of the LCD and switch backlight. (p. 34)
➥After [VOL] or [SQL] is pushed, push either switch to ad-
just audio level or noise squelch level, respectively. (pgs.
8, 33)
➥In set mode, changes setting of the selected item. (pgs.
9, 37)
➥During scanning, checks tag channels or changes scan-
ning direction. (pgs. 8, 36)
r CHANNEL 16/CALL CHANNEL SWITCH [16•C]
➥When pushed, selects Channel 16. (pgs. 6, 32)
➥When pushed and held for 1 sec., selects call channel.
(pgs. 6, 32)
•“CALL” appears when call channel is selected.
➥When call channel is selected, push and hold for 3 sec.
to enter call channel programming condition. (pgs. 9, 35)
➥While pushing and holding [H/L], enters memory name
programming condition. (pgs. 9, 38)
OPTIONAL
DIM
C
MONI
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IC
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DIAL
DUAL
SQL
VOL
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 28 (1,1)
