133BASIC OPERATION Optional voice scrambler operationDD Activating the scramblerThe optional voice scrambler provides private communica-tions. In order to receive or send scrambled transmissionsyou must first activate the scrambler function. To activate thefunction, an optional UT-112 is necessary. See p. 53 for set-ting the scrambler unit. Ask your dealer for details.The scrambler function automatically turns OFF whenChannel 16 or 70 is selected.q Select an operating channel other than Channel 16 and 70.w Push [F], then push [0 SCRM] to turn the optional scram-bler function ON.• “SCRAM” appears.e To turn the scrambler function OFF, repeat step w.• “SCRAM” disappears.DD Programming scrambler codesThere are 32 codes (1 to 32) available for programming whenthe optional UT-112 is installed. In order to understand oneanother, all transceivers in your group must have the samescramble code. This function may not be available depend-ing on dealer setting.q Turn power OFF.w While pushing [16•9], turn power ON to enter set mode.e After the display appears, release [16•9].r Rotate [CHANNEL] to select the “Scrambler Code,”push [ENT].t Rotate [CHANNEL] to select the desired scrambler code.y Push [ENT] to set and exit the scrambler code item.u Rotate [CHANNEL] to select “Exit,” then push [ENT] toexit set mode.Enter set modePOWER+916ENT ENTSelect itemthen pushSelect codethen pushScrambler Code˘9˘7--Set Mode--˘5˘6˘8˘<ENT˘OK>˘Scan Type˘Scan Timer--Set Mode--˘Internal Speaker˘Contrast˘Beep˘Dual/Tri COMMANDMIC˘WX Alert˘Internal Speaker˘Contrast--Set Mode--˘Scrambler Code˘Exit˘Scrambler Type˘Foghorn Frequency˘RF Attenuator[Example]: Programming scrambler code 8.3

instruction manual

explicit definitions

in case of emergency

OPERATING RULES

PANEL DESCRIPTION

I Function display

BASIC OPERATION

I Receiving and transmitting

I Call channel programming

DUALWATCH/TRI-WATCH

SCAN OPERATION

DSC OPERATION

I Position and Time programming

I Position/Time indication

I Distress call

I Transmitting DSC calls

I Receiving DSC calls

I Received messages

dsc set mode

OTHER FUNCTIONS

I Hailer operation

I Automatic fog horn

SET MODE

I Set mode items

Set Mode-

CONNECTIONS AND MAINTENANCE

I Connections

I Mounting the transceiver

I Optional unit installation

TROUBLESHOOTING

CHANNEL LIST

SPECIFICATIONS AND OPTIONS

MICROPHONE

I HM-127 supplied accessories

I Installation

I Channel selection

I Lock functions

I Starting a scan

I Set mode programming

TEMPLATE

Icom IC-M602 Instruction Manual

I Panel description

panel description 2

PANEL DESCRIPTION .......... 2

BASIC OPERATION ............ 8

I Description

I Operation

I Scan types

I Setting tag channels

I MMSI code programming

I Position indication

dsc operation

I Setting the distress information

I DSC individual ID

I Intercom operation

I Microphone lock function

I Supplied accessories

I Dimensions

channel list

SPECIFICATIONS AND

I Options

i rf attenuator function

I Optional voice scrambler operation

I Channel comments

IC-M602

vhf marine channel list

circuit description

transmitter circuits

pll circuits

logic circuits

pll adjustments

receiver adjustments

logic board

main unit

mechanical parts and disassembly

SCAN OPERATIONS

MAINTENANCE

i panel description