Icom IC-M503 Receiving and transmitting, Push H/L to select the output power, if necessary

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■Receiving and transmitting

qPush [PWR] to turn power ON.

wPush [VOL], then [Y]/[Z] to adjust audio output level.

•Push [SQL], then [Y]/[Z] to mute any audio noise, if necessary. e Push [Y]/[Z] to select the desired channel.

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

•Further adjustment of audio level may be necessary at this point.

•Use the optional voice scrambler function for privacy. (pgs. 10, 35)

rPush [H/L] to select the output power, if necessary.

•“LOW” appears when low power is selected.

•Choose low power for shorter, high power for longer distance communications.

•Some channels are low power only.

HM-134 REMOTE-CONTROL MICROPHONE 12

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

•“” appears.

•Channel 70 cannot be used for transmission (for GMDSS use).

yRelease [PTT] to receive.

IMPORTANT: To maximize the readability of your trans-

mitted signal (voice), pause a few sec. after pushing [PTT],

hold the microphone 10 to 15 cm (4 to 6 inches) from your mouth and speak at a normal voice level.

qTurn power ON

tPush to transmit

yRelease to receive

eSet channel

r Set output power

wSet volume

w Set squelch, if required

tSpeak into microphone

33

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Contents IM503 DS-100 #02 DSC Controller is required Mayday Mayday MaydayChannel 16 is automatically selected Table of Contents Page Priorities Operating RulesPrivacy Radio LicensesAdjusts the audio level. p Volume Control VOLPanel Description Panel descriptionPanel Description Function display Channel UP/DOWN Switches Y/Z PTT Switch PTTMicrophone Push and hold to transmit release to receive. pChannel selection Basic OperationChannel ÏCall channelAtis and DSC channels FRG version only Basic OperationRotate the channel selector to select a channel Receiving and transmitting Channel names Call channel programmingRotate the channel selector to select the desired channel Push Call to input and set the nameOptional voice scrambler operation Set mode Scrambler code itemActivating the scrambler Programming scrambler codesDescription DUALWATCH/TRI-WATCHOperation DUALWATCH/TRI-WATCH SimulationScan types Scan OperationsPriority Scan Normal ScanStarting a scan Setting tag channelsScan Operation Clearing all tag channels in the selected channel groupSet mode programming SET ModeSET Mode Construction Scan mode Set mode itemsScan resume timer Dual/tri watchLCD contrast Internal speakerScrambler code Scrambler typeIntercom operation Intercom OperationFuse replacement Connections and MaintenanceCleaning UnpackingConnections Connections and MaintenanceMicrophone hanger Mounting the transceiver Using the supplied mounting bracketOverhead Mounting Mounting on Dashboard Using the optional mounting bracket Opening the transceiver case Optional unit installation145.0 5 23⁄32˝ Dimensions109.4 110.0 4 11⁄32˝ 165.0 6 1⁄2˝ 31.4 53.0 Unit mm inchProblem Possible Cause Solution TroubleshootingInternational channels Channel ListSpeciﬁcations Specifications and OptionsOptions PTT Switch PTT pgs Power Switch PWR pgsChannel 16/CALL Channel Switch 16C HM-134 REMOTE-CONTROL MicrophoneHM-134 REMOTE-CONTROL Microphone KEY Lock Indicator p Channel Group Indicator pgs12HM-134 REMOTE-CONTROL Microphone 1EXTERNAL Speaker Jack7WAIT Indicator S.A. and International channels Call channelA. channels International channelsPush H/L to select the output power, if necessary Display backlighting Lock functionsMonitor function Activating the lock functionPush Y/Z to select the desired channel Programming scramble codesTo turn the scrambler func Tion OFF, repeat step w Dualwatch/Tri- watch operation To cancel dualwatch/tri-watch, push Dial againPush Dual to start dualwatch or tri-watch Transceiver’s functions Entering set modeMicrophone’s own functions Beep tone BeepAvailable characters Intercom beep functionHM-134 supplied accessories HM-134 Connections and InstallationInstallation Accessories included with the HM-134 Qty13HM-134 Connections and Installation Mm 3⁄ 32˝ x HM-134 Connections and Installation24 to 27 d mm 15⁄16 to 11⁄16˝ Cut here MB-75 Template149 57⁄8˝ R11 Mm 3⁄32˝Installation notes Installation Notes0560 GER FRA ESP Intended Country of UseAUT NED POR DEN GBR BEL ITA FIN IRL LUX GRE SUI Kamiminami, Hirano-ku, Osaka 547-0003 JapanFrequency MHz Transmit Receive 01A