4812 COMMANDMIC II™ HM-157 Setting TAG channelsq While pushing [H/L], push [CH/WX• U/I/C ] severaltimes to select the desired channel group (USA, INT orCAN).w Push [YY] or [ZZ] to select the desired channel to be set asa TAG channel.e Push [SCAN• ] for 1 sec. to set the displayed channelas a TAG channel.• “ ” appears in the display.r To cancel the TAG channel setting, repeat step e.• “ ” disappears.✔ Clearing (or setting) all tagged channelsWhile pushing [H/L], push [SCAN• ] for 3 sec. (until a longbeep changes to 2 short beeps) to clear all TAG channels inthe channel group.• Repeat above procedure to set all TAG channels. Starting a scanSet scan type (Priority or Normal scan) and scan resumetimer in advance, using Set mode. (p. 32)q While pushing [H/L], push [CH/WX• U/I/C ] severaltimes to select the desired channel group (USA, INT orCAN).w Set TAG channels as described at left.e Make sure the squelch is closed to start a scan.r Push [SCAN• ] to startPriority or Normal scan.• “ ”or “ ” appears atthe channel comment indicatorduring Priority or Normal scan,respectively.• When a signal is detected, scanpauses until the signal disap-pears or resumes after pausing5 sec. according to the Set mode setting (Channel 16 is stillmonitored during Priority scan).• Push [YY] or [ZZ] to check the scanning TAG channels, to changethe scanning direction or resume the scan manually.• “ ” blinks at the channel comment indicator and a beep tonesounds when a signal is received on Channel 16 during Priorityscan.t To stop the scan, repeat step r.TAGDWTAGTAGDWDuring normal scan.

OPERATING RULES

panel description

I Microphone

I Function display

basic operation

I Receiving and transmitting

I Call channel programming

I Channel comments

scan operation

I Setting TAG channels

I Operation

I MMSI code check

I DSC Address ID

i position indication

i distress call

I Transmitting DSC calls

dsc operation

transmitting a group call

transmitting an all ships call

I Receiving DSC calls

receiving a group call

other functions

I Public Address (PA) function

I Set mode items

set mode

I Fuse replacement

I Optional MB-69 installation

TROUBLESHOOTING

SPECIFICATIONS AND OPTIONS

i panel description

I Channel selection

I Lock functions

I Display backlight

I Starting a scan

I Set mode programming

I Intercom operation

I HM-157 supplied accessories

I Installation

CHANNEL LIST

TEMPLATE

Icom IC-M422 Instruction Manual

IC-M422

MAIN UNIT

LOGIC BOARD

TRANSMITTER CIRCUITS

PLL CIRCUITS

POWER SUPPLY CIRCUITS

PREPARATION

FREQUENCY ADJUSTMENT

TRANSMIT ADJUSTMENT

RECEIVE ADJUSTMENT

front unit

SQL BOARD

MECHANICAL PARTS AND DISASSEMBLY

VOLTAGE DIAGRAM