Icom VHF MARINE TRANSCEIVER Optional voice scrambler operation, Set mode Scrambler code item

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3 BASIC OPERATION

■Optional voice scrambler operation

Activating the scrambler

Programming scrambler codes

The optional voice scrambler provides private communica- tions. In order to receive or send scrambled transmissions you must ﬁrst activate the scrambler function. To activate the function, an optional UT-98 or UT-112 is necessary. See p. 33 for selecting the unit. Ask your dealer for details.

The scrambler function automatically turns OFF when channel 16 or 70 is selected.

qSelect an operating channel other than channel 16 and 70. w While pushing [HI/LO], push [LO/DX•IC/SCR] to toggle an

optional scrambler function ON or OFF.

•“SC” appears.

eTo turn the scrambler function OFF, repeat step w.

• “SC” disappears.

There are 128 or 32 codes (0 to 127 or 1 to 32) available for programming when the optional UT-98 or UT-112 is installed. In order to understand one another, all transceivers in your group must have the same scramble code. This function may not be available depending on dealer setting.

qTurn power OFF.

wWhile pushing [16•9], turn power ON to enter set mode. e After the display appears, release [16•9].

r Push [16•9] one or more times to select the scrambler code item.

•“Scrambler code” appears.

tRotate the channel selector to select the desired scram-

bler code.

yTurn power OFF, then ON again to exit set mode.

[Example]: Programming scrambler code 127.

16 9 + POWER	SetÊmode	16 9	SetÊmode	SetÊmode
Enter set mode	Beep	Push one or	Scrambler	Scrambler
		more times.	code	Select code code
			code	Select code code
	Set mode		Scrambler code item

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Contents IM502 Case of Emergency Channel 16 is automatically selectedTable of Contents Page Ship Station License Operating RulesRadio license for boaters U.S.A. only OPERATOR’S LicensePanel description Transmit Power Switch HI/LOPanel Description Channel Selector Channel1DSC/POSITION Switch DSC/ENTPOS Function display Same as the HI/LO switch on the front panel. p PTT Switch PTTChannel UP/DOWN Switches Y/Z MicrophoneChannel Basic OperationChannel selection Channel 9 Call channelCanadian channels Microphone lock functionWeather channels Push once CH/WXPush LO/DX to turn the receive attenuator on or OFF if Push HI/LO to select the output power if necessaryReceiving and transmitting Necessary25W TAG äLEASURE Call channel programmingChannel names Activating the scrambler Programming scrambler codes Set mode Scrambler code itemOptional voice scrambler operation Optional scrambler function on or OFFCall channel Description OperationDUALWATCH/TRI-WATCH Simulation Priority Scan Scan OperationsScan types Normal ScanScan starts Setting tag channels Starting a scanClearing all tag channels in the selected channel group Position and time programming DSC OperationMmsi code programming LATÊÊÊÊ LonêêêêêUTCÊÊ Position indicationInputÊtime LATÊ3434N LON13534EGPSÊUTC1234 Distress callDistressÊÊTX LATÊ3523N LON13535E Distress Completed WaitÊforÊACKÊindvêack Transmitting DSC callsTransmitting individual call DSC/ENTTransmitting individual acknowledgement ˘INDVÊACKPush DSC/ENT to transmit the all ships call Transmitting all ships call˘AllÊships All ships call has been transmittedPosêreq Transmitting position request callTransmitting position reply call SelÊnature ÊUndesign ˘Explosion ÊFlooding Setting the distress informationSelÊitem ÊRCVÊcalls ˘DTRSÊset ÊSet-up Push Distress for 5 sec. to transmit the distress callDeleting address ID DSC individual IDProgramming address ID NameReceiving a distress acknowledgement Receiving DSC callsReceiving a distress call Receiving an all ships call Receiving a distress relay acknowledgementReceiving a distress relay call Receiving an individual callReceiving a position request call Receiving a geographical area callReceiving a position reply call ÊtomSet-up ÊAddÊID ÊDeleteÊID ˘OffsetÊtime DSC set modeOffset time OffsetÊtime 0000 1200Check the 9-digit Mmsi DSC self ID code Mmsi code checkSet-up ÊDeleteÊID ÊOffsetÊtime ˘MMSIÊcheck MMSIÊcheck 123456789SelÊMessage ˘Distress ÊOther Receive messagesSelÊitem ˘RCVÊcalls ÊDTRSÊset ÊSet-up ToÊclear ThisÊdata NoÊDSC/ENT YesÊH/LIntercom Intercom OperationIntercom operation TalkSET Mode Construction SET ModeSet mode programming Push 16Scan resume timer Set mode itemsScan mode Weather alertInternal speaker DSC watchBeep tone Scrambler code LCD contrastAttenuation level Scrambler typeFuse replacement Connections and MaintenanceSupplied accessories CleaningConnections Microphone HangerOverhead Mounting Mounting on Dashboard Using the supplied mounting bracketMounting the transceiver Using the optional mounting bracket Attach the clamps on either side of the IC-M502Optional unit installation Dimensions Troubleshooting Problem Possible Cause Solution† Low power only Receive only Channel ListGeneral Specifications and OptionsSpeciﬁcations TransmitterOptions HM-127 REMOTE-CONTROL Microphone Power Switch PWR pgsPTT Switch PTT pgs Push and hold to transmit release to receiveTransmit Power Switch H/L SQUELCH/MONITOR/LOCK Switch SqlmonilVOLUME/DIMMER Switch Voldim 0SCAN Switch SCNTAGpgs0PRIORITY Channel Indicator HM-127 supplied accessories Installation Installation is finished when it is completedMm 3⁄32˝ 24 to 27 d mm 15⁄16 to 11⁄16˝ Mm 29⁄32˝ Gasket Push CH/WX to select regular channel Channel A., International and Canadian channelsCall channel Condition before selecting the Push Weather channel groupPush LO/DX to turn the RF Attenuator function on and OFF Push H/L to select the output power, if necessaryRF attenuator function Monitor function Lock functionsDisplay backlighting Activating the lock functionPush Y/Z to select the desired channel Activating the scramblerProgramming scramble codes To turn the scrambler func Tion OFF, repeat step wSetting tag channels Dualwatch/Tri- watch operationBeep toneBEEP Entering set modeTurn power OFF While pushing 169, turn power on Available characters Intercom operation Channel namesIntercom beep function 149 57⁄˝ TemplateCut here R11 Mm 3⁄32˝Kamiminami, Hirano-ku, Osaka 547-0003 Japan