40
COMMANDMIC II™HM-157
12

■Panel description

The optional HM-157 remotely controls the IC-M422 and pro-
vides an optional Intercom function.

DDFront and side keys

qVOLUME/DIMMER/PA/RX SPEAKER KEY
[VOL• PA/RX ]
➥Push [YY]or [ZZ]to adjust the audio level after pushing
[VOL• PA/RX ](p.45)
➥Push [YY]or [ZZ]to adjust the brightness of the LCD and
key backlight after pushing [VOL• PA/RX ]for
1 sec. (p. 47)
➥Move the cursor backward while in the channel com-
ment programming condition. (p. 51)
➥While pushing [H/L], push to turn the Public Address
mode ON or OFF. (p. 50)
➥While pushing [H/L], push for 1 sec. to turn the RX
Speaker mode ON or OFF. (p. 50)
wSQUELCH/MONITOR/LOCK KEY[SQL• L]
➥Push [YY]or [ZZ]to set the squelch threshold level after
pushing [SQL• L]. (p. 45)
➥Push for 1 sec. to turn the monitor function ON. (p. 47)
➥While pushing [H/L], push [SQL• L]to toggle the
(microphone) Key Lock function ON or OFF. (p. 46)
•“ T” appears while (microphone) Key Lock function is in use.
•[PWR], [PTT], [VOL], [SQL]and [H/L] still function when the
(microphone) Key Lock function is turned ON.
➥Advance the cursor while in channel comment pro-
gramming condition. (p. 51)
MONI
MONI
MONI
DIM
DIM
DIM
Top keys (p. 42)
u
t
y
w
e
r
q
Speaker