Icom IC-M504 instruction manual Receiving and transmitting

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3 BASIC OPERATION

■Receiving and transmitting

CAUTION: Transmitting without an antenna may dam- age the transceiver.

qPush [POWER] to turn power ON. w Set the audio and squelch levels.

➥Rotate [SQL] fully counterclockwise in advance.

➥Rotate [VOL] to adjust the audio output level.

➥Rotate [SQL] clockwise until the noise disappears.

e While pushing and holding [H/L], push [CH/WX•DUAL• U/I/C] to change the channel group. (p. 7)

r Rotate [DIAL] to select the desired channel. (pgs. 6, 7)

• When receiving a signal, “BUSY” appears and audio is emitted from the speaker.

• Further adjustment of [VOL] may be necessary.

t Push [LO/DX•IC•SCRM] to turn the receive Attenuator function ON or OFF, if necessary.

• “LOC” appears when the receive Attenuator function is in use. y Push [H/L] to select the output power if necessary.

• “25W” or “1W” appears when high or low power is selected, re- spectively.

• Choose low power for short range communications, choose high power for longer distance communications.

• Some channels are for low power only.

u Push and hold [PTT] to transmit, then speak into the mi- crophone.

• “TX” appears.

• Channel 70 cannot be used for transmission other than DSC. i Release [PTT] to receive.

Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CAN- NOT be lawfully used by the general public in U.S.A. wa- ters.

IMPORTANT: To maximize the readability of your trans- mitted signal, pause a few sec. after pushing [PTT], hold the microphone 2 to 4 inches (5 to 10 cm) from your mouth and speak into the microphone at a normal voice level.

q y

ui Microphone

w w e r

t r

e y

8

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Contents IM504 Equipment damage may occur Word DefinitionMay occur Personal injury, ﬁre or electric shockCase of Emergency Determining MPE Radius IiiTable of Contents Precautions Ship Station License Operating RulesRadio license for boaters U.S.A. only OPERATOR’S LicensePanel Description Front panel2TRANSMIT Power KEY H/L 0TIME Zone Indicator Function displayMicrophone 1POSITION Indicator2SCAN Indicator Channel Basic OperationChannel selection Channel 9 Call channelC to change the channel group, if necessary S.A., international and Canadian channelsWeather channels Rotate Dial to select a channelReceiving and transmitting Push CH/WXDUAL Call channel programmingWhile pushing and holding Display backlight Channel commentsMicrophone Lock function Select the desired characDialenter Optional voice scrambler operationActivating the scrambler Programming scrambler codes Priority Scan Scan OperationScan types Normal ScanStarting a scan Setting TAG channelsClearing or setting all tagged channels Operation DUALWATCH/TRI-WATCHDescription DUALWATCH/TRI-WATCH SimulationRotate Dial to select Mmsi Check, push Dialenter DSC OperationMmsi code programming Rotate Dial to set the speciﬁc 9-digit Mmsi codeMmsi code check Check the 9-digit Mmsi DSC self ID codeRotate Dial to select AddINDV ID, push Dialenter DSC address IDProgramming Individual ID Rotate Dial to set the individual ID and ID nameRotate Dial to select the desired ID name for deleting Deleting Individual IDRotate Dial to select Delindv ID, push Dialenter Rotate Dial to set the group ID and ID name Programming Group IDRotate Dial to select AddGroup ID, push Dialenter Deleting Group ID Rotate Dial to select DELGroup ID, push DialenterPosition and time programming Position and time indication GPS information indicationAfter 2 sec. Wait ACK Distress callSimple call Distress alert contains default Regular callPush Distress for 5 sec. to transmit the distress call Transmitting DSC calls Transmitting an individual callPush Dialenter to transmit the individual call Transmitting an individual acknowledgement Transmitting a group call Push Dialenter to transmit the group call Push Dialenter to transmit the all ships call Transmitting an all ships callRotate Dial to select the desired category, push Dialenter Transmitting a position request call Push Dialenter to transmit the position request call Transmitting a position report call Push Dialenter to transmit the position report call Transmitting a polling request call Push Dialenter to transmit the polling request callTransmitting a position request reply call Your position data is transmitted, when Dialenter is pushed Transmitting a position report reply call Transmitting a polling request reply call Receiving a distress acknowledgement Receiving DSC callsReceiving a distress call Receiving a distress relay callReceiving an all ships call Receiving an individual callReceiving a group call Receiving a position report call Receiving a geographical area callReceiving a position request call Receiving a position report reply call Receiving a polling request callReceiving a position request reply call Receiving a polling request reply callRotate Dial to select Distress, push Dialenter Received messagesDistress message Rotate Dial to scroll the messageOther messages Rotate Dial to select Other, push DialenterRotate Dial to select Offset Time, push Dialenter DSC Set modeNo offset time default Push Dialenter to set the condition Automatic acknowledgementRotate Dial to select Auto ACK, push Nmea Output Rotate Dial to select Nmea Output, push DialenterHM-162 listener Other FunctionsIntercom operation RX Speaker function To return to normal operation, push CLR or Hailrx Push Hailrx to enter hailer modeHailer operation Stop Automatic foghorn functionUnderway SailIng DSC calls.’ p Rotate Dial to adjust the foghorn level, push DialenterTion is interrupted with an automatic return to the trans Set mode items SET ModeSet mode programming Scan resume timerBeep tone Weather alertDual/Tri-watch LCD contrastScrambler type Radio powerAutomatic foghorn frequency Scrambler codeConnections Connections and Maintenance0DC Power Connector Antenna Fuse replacementSupplied accessories Using the supplied mounting bracket Mounting the transceiverThat the clamps press firmly against the inside MB-75 installationTighten the end bolts on the clamps rotate clockwise so UT-112/UT-98 installation HM-162/HM-157 installation Return the cables and screws to the original positionHM-157 Completed installation should look like thisHM-162 HM-162 HM-157Gasket Mm 131⁄32˝ Nut Cap Troubleshooting Problem Possible Cause SolutionGeneral Receiver Specifications and OptionsSpeciﬁcations TransmitterFor mounting the transceiver to a panel DimensionsOptions 20 feet microphone extension cable for optional HMChannel List Transmit ReceiveUnit mm inch Cut here TemplateR12 Max Page Memo Kamiminami, Hirano-ku, Osaka 547-0003, Japan