INSTRUCTIONS
REMOTE-CONTROL MICROPHONE
HM-157
Thank you for purchasing the HM-157
REMOTE
-
CONTROL MICROPHONE
. The COMMANDMIC II
TM
is a
remote control microphone for use with the IC-M602,
M504, M422, M402 or else.
Please read these instructions and transceiver’s
instruction manual carefully before installation and
operation.
■
Panel description
The HM-157 remotely controls the transceiver and provides an
optional Intercom function.
z
POWER KEY [PWR]
Push for 2 sec. to turn the HM-157 power ON or OFF when
the transceiver power is turned ON.
x
SCAN KEY
[
[
SCAN
SCAN
](
](
)
)
➥
Push to start and stop Normal or Priority scan when TAG
channels are programmed.
➥
Push for 1 sec. to set the displayed channel as a TAG
(scanned) channel.
➥
While pushing
[
[
H/L
H/L
]
], push for 3 sec. to clear or set all TAG
channels.
c
TRANSMIT POWER KEY
[
[
H/L
H/L
]
]
➥
Push to toggle high or low power.
• Some Channels are set to low power only.
➥
While pushing this key, other keys perform secondary func-
tions.
➥
While turning power ON, push to toggle the All key lock
function ON or OFF.
• “
T
” blinks while the All key lock function is in use.
• Only
[
[
PWR
PWR
]
] and
[
[
PTT
PTT
]
] function when the All key lock func-
tion is in use.
v
PTT SWITCH
[
[
PTT
PTT
]
]
Push and hold to transmit; release to receive.
b
CHANNEL UP/DOWN KEYS
[
[
Y
Y
Y
Y
]
]/
[
[
Z
Z
Z
Z
]
]
➥
Push either key to select the operating channel, Set mode
settings, etc.
➥
After pushing
[
[
VOL
VOL
]
] or
[
[
SQL
SQL
]
], push either key to adjust
audio level or noise squelch level, respectively.
➥
After pushing
[
[
VOL
VOL
]
] for 1 sec, push either key to adjust
the brightness of the LCD and key backlight.
➥
Checks TAG channels or changes scanning direction dur-
ing scan.
➥
Push either key to adjust the audio level during in Hailer
(Public Address)* mode. (* Depends on the transceiver)
➥
While pushing
[VOL](
[VOL](
P
P
A/RX
A/RX
)
) push either key to
adjust the audio level during in RX Speaker mode.
n
CHANNEL 16/CALL CHANNEL KEY
[
[
](
](
9
9
)
)
➥
Push to select Channel 16.
➥
Push for 1 sec. to select call channel.
• “CALL” appears when call channel is selected.
➥
Push for 3 sec. to enter call channel programming condi-
tion when call channel is selected.
➥
While pushing
[
[
H/L
H/L
]
], enters channel comments program-
ming condition.
➥
While turning power ON, push to enter Set mode.
m
CHANNEL/DUALWATCH/TRI-WATCH KEY
[
[
CH/WX
CH/WX
](
](
U/I/C)
U/I/C)
➥
Push to select and toggle the regular channels and
weather channels.
➥
While pushing
[
[
H/L
H/L
]
], push to select one of three channel
groups in sequence.
• U.S.A., International and Canadian channels are available.
➥
Push for 1 sec. to start Dualwatch or Tri-watch.
➥
Stops Dualwatch or Tri-watch when either is activated.
,
ATTENUATOR/INTERCOM/SCRAMBLER* KEY
[
[
LO/DX
LO/DX
](
](
SCR)
SCR)
➥
Push to toggle the Attenuator function ON or OFF.
• “LOCAL” appears when the Attenuator is in use.
➥
Push for 1 sec. to activate the Intercom function.
➥
Calls the transceiver when pushed and held while in Inter-
com mode.
➥
While pushing
[
[
H/L
H/L
]
], activates an optional Voice scram-
bler* function.
• The Voice scrambler function cannot be used on Ch 16 and 70.
* The Voice scrambler function is available depends on the
transceiver.
.
SQUELCH/MONITOR/LOCK KEY
[
[
SQL
SQL
](
](
L)
L)
➥
After pushing
[
[
SQL
SQL
]
], push
[
[
Y
Y
Y
Y
]
] or
[
[
Z
Z
Z
Z
]
] to adjust noise
squelch level.
➥
Push for 1 sec. to turn the monitor function ON.
➥
While pushing
[
[
H/L
H/L
]
], push
[
[
SQL
SQL
](
](
L)
L) to toggle the
(microphone) Key lock function ON or OFF.
• “
T
” appears while Key lock function is in use.
•
[
[
PWR
PWR
]
],
[
[
PTT
PTT
]
],
[
[
VOL
VOL
]
],
[
[
SQL
SQL
]
] and
[
[
H/L
H/L
]
] still function when
the (microphone) Key lock function is turned ON.
➥
Advance the cursor while in channel comment program-
ming condition.
MONI
MONI
IC
DW
PWR
SCAN
H/L
TAG
DW
9
MONI
L
U/I/C
DIM
IC
SCR
CH/WX
LO/DX
SQL
VOL
PA/RX
v
n
b
,
.
⁄0
m
z x c
16
16
DIM
TAG
⁄0
VOLUME/DIMMER/PA/RX SPEAKER KEY
[VOL](
[VOL](
P
P
A/RX
A/RX
)
)
➥
After pushing
[
[
VOL
VOL
]
], push
[
[
Y
Y
Y
Y
]
] or
[
[
Z
Z
Z
Z
]
] to adjust audio
level.
➥
After pushing
[VOL](
[VOL](
P
P
A/RX
A/RX
)
) for 1 sec, push
[
[
Y
Y
Y
Y
]
] or
[
[
Z
Z
Z
Z
]
] to adjust the brightness of the LCD and key backlight.
➥
Move the cursor backward while in the channel comment
programming condition.
➥
While pushing
[H/L]
[H/L], push to turn the Hailer (Public Ad-
dress)* mode ON or OFF. (* Depends on the transceiver)
➥
While pushing
[H/L]
[H/L], push for 1 sec. to turn the RX
Speaker mode ON or OFF.
■
Function display
q
CHANNEL GROUP INDICATOR
Indicates whether an U.S.A. (USA), International (INT) or
Canadian (CAN) channel is selected.
w
KEY LOCK INDICATOR
➥
Appears while the Key lock function is in use.
➥
Blinks while the All key lock function is in use.
e
CHANNEL NUMBER READOUT
➥
Indicates the selected operating channel number. “A” ap-
pears when a simplex channel is selected. “b” appears
when a receive only channel for a Canadian channel group
is selected.
➥
In Set mode, indicates the selected condition.
r
VOLUME INDICATOR
Appears while audio output level is adjusted.
t
SQUELCH INDICATOR
Appears while noise squelch level is adjusted.
y
CHANNEL COMMENT INDICATOR
➥
Channel comment appears (and scrolls) if programmed.
➥
In Set mode, indicates or scrolls the selected Set mode item.
u
ATTENUATOR INDICATOR
Appears when the Attenuator function is in use.
i
SCRAMBLER INDICATOR
Appears when an optional Voice scrambler* is activated.
* The Voice scrambler is available depends on the transceiver.
o
SCAN INDICATOR
➥
“SCAN” appears during Normal scan.
➥
“P SCAN” appears during Priority scan.
!0
PRIORITY CHANNEL INDICATOR
Indicates a priority channel during Priority scan or Dual/Tri-
watch.
!1
DUAL/TRI WATCH INDICATOR
“DUAL” appears during Dualwatch; “TRI” during Tri-watch.
!2
WEATHER CHANNEL INDICATOR
➥
“WX” appears when a weather channel is selected.
➥
“WX ALT” appears when the Weather alert function is in
use; blinks when an alert tone is received.
!3
LOW POWER INDICATOR
Appears when low power is selected.
!4
CALL CHANNEL INDICATOR
Appears when call channel is selected.
!5
DUPLEX INDICATOR
Appears when a duplex channel is selected.
!6
TAG CHANNEL INDICATOR
Appears when a TAG channel is selected.
!7
BUSY INDICATOR
Appears when receiving a signal or when the squelch opens.
!8
TRANSMIT INDICATOR
Appears while transmitting.
■
Channel selection
D
D
Channel 16
q
Push
[
[
]
] to select Channel 16.
w
Push
[
[
CH/WX
CH/WX
]
] to return to the condition
before selecting Channel 16, or push
[
[
Y
Y
Y
Y
]
]
or
[
[
Z
Z
Z
Z
]
] to select an operating channel.
D
D
Call channel
q
Push
[
[
](
](
9
9
)
) for 1 sec. to select call
channel.
w
Push
[
[
CH/WX
CH/WX
]
] to return to the condition
before selecting call channel, or push
[
[
Y
Y
Y
Y
]
]
or
[
[
Z
Z
Z
Z
]
] to select an operating channel.
D
D
Weather channels
q
Push
[
[
CH/WX
CH/WX
]
] once or twice to select
the weather channel group.
w
Push
[
[
Y
Y
Y
Y
]
] or
[
[
Z
Z
Z
Z
]
] to select a weather chan-
nel.
e
Push
[
[
CH/WX
CH/WX
]
] to return to the condition
before selecting the weather channel
group.
D
D
U.S.A., International and Canadian channels
q
Push
[
[
CH/WX
CH/WX
](
](
U/I/C)
U/I/C) to select a regular channel.
• Push
[
[
CH/WX
CH/WX
](
](
U/I/C)
U/I/C) again, if a weather channel appears.
w
While pushing
[
[
H/L
H/L
]
], push
[
[
CH/WX
CH/WX
](
](
U/I/C)
U/I/C) to select a
channel group.
• U.S.A., International and Canadian channels can be selected in
sequence.
■
Receiving and transmitting
q
Push
[
[
PWR
PWR
]
] for 2 sec. to turn power ON.
w
Set the audio and squelch levels.
➥
Push
[
[
SQL
SQL
]
], then push
[
[
Z
Z
Z
Z
]
] until the noise appears.
➥
Push
[
[
VOL
VOL
]
], then push
[
[
Y
Y
Y
Y
]
]/
[
[
Z
Z
Z
Z
]
] to adjust the audio level.
➥
Push
[
[
SQL
SQL
]
], then push
[
[
Y
Y
Y
Y
]
] until the noise disappears.
e
To change the channel group, push
[
[
CH/WX
CH/WX
](
](
U/I/C)
U/I/C)
while pushing [H/L].
r
Push
[
[
Y
Y
Y
Y
]
] or
[
[
Z
Z
Z
Z
]
] to select the desired channel.
• When receiving a signal, “
” appears and audio is emitted
from the speaker.
• Further adjustment of the audio level may be necessary.
• Use the optional Voice scrambler function for privacy.
t
Push
[
[
LO/DX
LO/DX
]
] to turn the Attenuator function ON or OFF, if
necessary.
• “LOCAL” appears when the Attenuator function is in use.
y
Push
[
[
H/L
H/L
]
] to select the output power, if necessary.
• “LOW” appears when low power is selected.
• Choose low power for short range communications, choose high
power for longer distance communications.
• Some channels are for selecting low power only.
u
Push and hold
[
[
PTT
PTT
]
] to transmit, then speak into the micro-
phone.
• “
” appears.
• Channel 70 cannot be used for transmission other than DSC.
Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CANNOT
be lawfully used by the general public in U.S.A. waters.
i
Release
[
[
PTT
PTT
]
] to receive.
IMPORTANT: To maximize the readability of your transmitted
signal (voice), pause a few sec. after pushing
[
[
PTT
PTT
]
], hold the
microphone 2 to 4 inches (5 to 10 cm) from your mouth and
speak at a normal voice level.
DW
U.S.A. channels
Canadian channels
International channels
DW
DW
DW
16
16
16
16
CALL
WX ALT
DUP
P SCAN
SCRM
LOCAL
TRI
DUAL
LOW
TAG
CAN
USA
INT
L
TX BUSY
VOL
SQL
q
w
r
t
e
!8 !7
!4
!5
!3
!2
!1
!0
o
i
u
y
!6
DIM
DIM
■
HM-157 supplied accessories
Accessories included with the HM-157:
Qty.
q
Connection cable (OPC-1000: 6 m; 20 ft) ........................ 1
w
Mounting base .................................................................. 1
e
Microphone hanger .......................................................... 1
r
Screws (M3
×
16; tapping) ............................................... 5
These instructions are described when the HM-157 is connected to the IC-M504. Some operations or indications may be dif-
ferent as these instructions depending on the connecting transceiver.
Icom, Icom Inc. and the
logo are registered trademarks of Icom Incor-
porated (Japan) in the United States, the United Kingdom, Germany, France,
Spain, Russia and/or other countries. COMMANDMIC II is a trademark of
Icom Incorporated (Japan) in the United states.
q
w
e
r
