01 IC-M503-(1).qxd 01.12.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page b (1,1) IN CASE OF EMERGENCY If your vessel requires assistance, contact other vessels and the Coast Guard by sending a distress call on Channel 16. USING CHANNEL 16 Or, transmit your distress call using digital selective calling on Channel 70 (the optional DS-100 (#02) must be installed). USING DIGITAL SELECTIVE CALLING (Ch 70) (DS-100 (#02) DSC CONTROLLER is required) DISTRESS CALL PROCEDURE 1. “MAYDAY MAYDAY MAYDAY.” 2. “THIS IS ...............
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page c (1,1) TABLE OF CONTENTS IN CASE OF EMERGENCY ........................i TABLE OF CONTENTS ..............................ii IMPORTANT ..............................................iii CAUTIONS.................................................iii 1 OPERATING RULES .......................... 1 2 PANEL DESCRIPTION .................. 2 – 5 ■ Panel description ............................. 2 ■ Function display ............................... 4 ■ Microphone ...............
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page d (1,1) IMPORTANT READ ALL INSTRUCTIONS carefully and completely SAVE THIS INSTRUCTION MANUAL — This in- before using the transceiver. struction manual contains important operating instructions for the IC-M503. CAUTIONS RWARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock. NEVER connect the transceiver to a power source of more than 15.6 V DC or using reverse polarity.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 1 (1,1) OPERATING RULES ï PRIORITIES • Read all rules and regulations pertaining to priorities and keep an up-to-date copy handy. Safety and distress calls take priority over all others. • You must monitor Channel 16 when you are not operating on another channel. • False or fraudulent distress signals are prohibited and punishable by law. ï PRIVACY • Information overheard but not intended for you cannot lawfully be used in any way.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 2 (1,1) 2 PANEL DESCRIPTION ■ Panel description !1 !0 o i iM503 VHF MARINE Function display 16 WATER RESISTANT Speaker SCAN DUAL POWER HI/LO VOL w q POWER SWITCH [POWER] Push to toggle the transceiver power ON and OFF. DIAL TAG q CALL DIMMER SQL e r t y u r TRANSMIT POWER SWITCH [HI/LO] ➥ Push to Toggle high and low power . (p. 8) • Some channels are set to low power only. w VOLUME CONTROL [VOL] Adjusts the audio level. (p.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 3 (1,1) PANEL DESCRIPTION t CHANNEL SELECTOR [CHANNEL] Rotate [CHANNEL] to select the operating channels, set mode contents, etc. (p. 8) y DIMMER SWITCH [DIMMER] ➥ Push to select one of 8 backlighting (LCD and switches) levels. ➥ Push and hold for 1 sec. to turn the intercom mode ON. u CALL CHANNEL SWITCH [CALL] ➥ Push to select the call channel. (p. 6) ➥ Push and hold for 3 sec. to enter call channel programming condition. (p.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 4 (1,1) 2 PANEL DESCRIPTION ■ Function display o q w e r to approx. 10 V DC or below. ➥ “DUAL” appears during dualwatch; “TRI” appears during tri-watch. (p. 11) ➥ “WAIT” appears in the IC-M503 display while transmitting via the HM-134 remote-control microphone. i BUSY INT 25W CALL TAG SC DUP CALLING • In the above case, the connected HM-134 has priority. u t y q BUSY/TRANSMIT INDICATOR (p.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 5 (1,1) PANEL DESCRIPTION 2 ■ Microphone q Speaker Microphone w e q PTT SWITCH [PTT] Push and hold to transmit; release to receive. (p. 8) Y]/[Z Z] w CHANNEL UP/DOWN SWITCHES [Y Push either switch to change the operating memory channel, set mode contents, etc. (p. 8) e TRANSMIT POWER SWITCH [HI/LO] ➥ Same as the [HI/LO] switch on the front panel. ➥ When pushed at power ON, toggles the [Y]/[Z] and [HI/LO] switch functions ON and OFF.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 6 (1,1) 3 BASIC OPERATION ■ Channel selection • “CALL” and call channel number appear. ï Channel 16 Channel 16 is the distress and safety channel. It is used for establishing initial contact with another station and for emergency communications. Channel 16 is monitored during both dualwatch and tri-watch. While standing by, you must monitor Channel 16. ➥ Push [16] to select Channel 16. • Output power turns to “25W” automatically, whenever Channel 16 is selected.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 7 (1,1) BASIC OPERATION ï U.S.A. channels (U.K. version only) For the U.K. versions, there are 58 U.S.A. channels in addition to 57 International channels. 3 HOLLAND 1W DUP INTL q Push [DIAL] to select a regular channel. w While pushing and holding [HI/LO], push [DIAL] to change the channel group. • International and U.S.A. channels can be selected in sequence. e Rotate the channel selector to select a channel.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 8 (1,1) 3 BASIC OPERATION ■ Receiving and transmitting CAUTION: Transmitting without an antenna may damage the transceiver. q Push [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 [HI/LO], push [DIAL] to change the channel group. (p.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 9 (1,1) BASIC OPERATION 3 ■ Call channel programming ■ Channel names The call channel switch can be programmed to your most often-used channels in each channel group for quick recall. Memory channels can be tagged with alphanumeric names of up to 10 characters each. q While pushing and holding [HI/LO], push [DIAL] one or more times to select the desired channel group (International, U.S.A., Holland, ATIS, DSC) to be programmed.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 10 (1,1) 3 BASIC OPERATION ■ Optional voice scrambler operation ï Activating the scrambler ï Programming scrambler codes The optional voice scrambler provides private communications. 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. 16 for selecting the unit. Ask your dealer for details.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 11 (1,1) DUALWATCH/TRI-WATCH ■ Description ■ Operation Dualwatch monitors Channel 16 while you are receiving another channel; tri-watch monitors Channel 16 and the call channel while receiving another channel. q Select the desired operating channel. w Select dualwatch or tri-watch in set mode. (p. 15) e Push [DUAL] to start dualwatch or tri-watch. 4 • “DUAL” appears during dualwatch; “TRI” appears during triwatch.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 12 (1,1) 5 SCAN OPERATIONS ■ Scan types Scanning is an efficient way to locate signals quickly over a wide frequency range. The transceiver has priority scan and normal scan. Set the tag channels (scanned channel) before scanning. Clear the tag channels which inconveniently stop scanning, such as those for digital communication use. Choose priority scan or normal scan in set mode in advance. (p.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 13 (1,1) SCAN OPERATION ■ Setting tag channels 5 for 3 sec. to clear all tag channels in the channel group. For more efficient scanning, add desired channels as tag channels or clear tag channels that are unwanted channels. Channels set as non-tag channels will be skipped during scanning. Tag channels can be assigned to each channel group (International, U.S.A., Holland, DSC, ATIS) independently.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 14 (1,1) 6 SET MODE ■ Set mode programming q Turn power OFF. w While pushing and holding [16], turn power ON to enter set mode. e After the display appears, release [16]. r Push [16] to select the desired item, if necessary. t Rotate the channel selector to select the desired condition of the item. y Turn power OFF, then ON again to exit set mode.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 15 (1,1) SET MODE 6 ■ Set mode items ï Dual/tri watch ï Scan mode The transceiver has 2 scan modes: normal scan and priority scan. Normal scan searches all tag channels in the selected channel group. Priority scan searches all tag channels in sequence while monitoring channel 16. This item sets the [DUAL] switch function as dual watch or triwatch. See the section ‘Dual watch/Tri-watch’ for details.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 16 (1,1) 6 SET MODE ï Internal speaker When an optional external speaker is connected, the speakers on the transceiver and microphone can be muted.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 17 (1,1) INTERCOM OPERATION 7 ■ Intercom operation The optional intercom function allows you to talk to the deck from the cabin. The optional HM-134* REMOTE-CONTROL MICROPHONE is required for intercom operation. • To adjust the IC-M503’s speaker output level, rotate [VOL]. • To adjust the HM-134’s speaker output level, push [Y]/[Z] after pushing [VOL]. *DO NOT connect another remote-control microphone. INT Connect an optional HM-134 as described on p. 39.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 18 (1,1) 8 CONNECTIONS AND MAINTENANCE ■ Unpacking ■ Antenna The following accessories are supplied: Qty. q Mounting bracket ............................................................ 1 w DC power cable (OPC-891) ........................................... 1 e Microphone hanger ........................................................ 1 r Microphone hanger cable* (OPC-1096 : Black) ........................................................
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 19 (1,1) CONNECTIONS AND MAINTENANCE ■ Connections q w EXTENSION JACK Connects to the optional DS-100 (#02) DSC CONTROLLER. t r w 8 e q DC POWER CONNECTOR Connects the supplied DC power cable from this connector to an external 12 V DC power source. CAUTION: After connecting the DC power cable and e EXTERNAL MICROPHONE CONNECTOR Connects to the optional HM-134 REMOTE-CONTROL MICROPHONE. • Intercom function is available.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 20 (1,1) 8 CONNECTIONS AND MAINTENANCE ■ Microphone hanger OPC-1096 Rest the supplied microphone on the hanger when not in use. Connect the OPC-1096* to the transceivers chassis and microphone hanger to use the microphone hanger function. * Depending on version. • Tighten the screw at fixing torque 0.7 N •m (6.9 kg•m). • If the microphone hanger function is used, Channel 16 is selected automatically when the supplied microphone is rested on the hanger.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 21 (1,1) CONNECTIONS AND MAINTENANCE ■ Mounting the transceiver 8 • OVERHEAD MOUNTING ï Using the supplied mounting bracket The universal mounting bracket supplied with your transceiver allows overhead or dashboard mounting. • Mount the transceiver securely with the 2 screws supplied (M5 × 20) to a surface which is more than 10 mm thick and can support more than 5 kg.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 22 (1,1) 8 CONNECTIONS AND MAINTENANCE ï Using the optional mounting bracket An optional MB-75 FLUSH MOUNT is available for mounting the transceiver to a flat surface such as an instrument panel. r Attach the clamps on either side of the transceiver. • Make sure that the clamps align parallel to the transceiver body. CAUTION: KEEP the transceiver and microphone at least 1 meter away from your ship’s magnetic navigation compass.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 23 (1,1) CONNECTIONS AND MAINTENANCE 8 ■ Optional unit installation CAUTION: DISCONNECT the DC power cable from the transceiver before performing any work on the transceiver. Otherwise, there is danger of electric shock and/or equipment damage. w Remove the 4 screws from the shielding plate, then lift up the shielding plate. e Plug an optional unit to the MAIN unit as shown below.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 24 (1,1) 8 CONNECTIONS AND MAINTENANCE ■ Dimensions 110.0 (4 11⁄32˝) 109.4 (4 5⁄16˝) 145.0 (5 23⁄32˝) 165.0 (6 1⁄2˝) 24 31.4 (1 1/4˝) 53.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 25 (1,1) TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION 9 REF. No power comes ON. • Bad connection to the power supply. • Check the connection to the transceiver. p. 19 No sound comes from the speaker. • Squelch level is too deep. • Volume level is too low. • Speaker has been exposed to water. • Set squelch to the threshold point. • Set [VOL] to a suitable level. • Drain water from the speaker. p. 8 p.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 26 (1,1) 10 CHANNEL LIST • International channels CH Frequency (MHz) Transmit Receive 01 156.050 160.650 02 156.100 03 156.150 04 156.200 CH Frequency (MHz) Transmit Receive 11 156.550 156.550 160.700 12 156.600 160.750 13 156.650 160.800 14 CH Frequency (MHz) Transmit Receive 21 157.050 161.650 156.600 22 157.100 156.650 23 157.150 156.700 156.700 24 CH Frequency (MHz) Transmit Receive 62 156.125 160.725 161.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 27 (1,1) SPECIFICATIONS AND OPTIONS 11 ■ Specifications ■ Options • GENERAL • DS-100 (#02) DSC CONTROLLER When the DS-100 is installed, the transceiver conforms to DSC Class D for marine digital communications. • Frequency coverage Transmit Receive • Mode • Channel spacing • Current drain (at 13.8 V) • Power supply requirement • Frequency stability • Dimensions (Projection not included) • Weight : 156.000–161.450 MHz 156.000–163.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 28 (1,1) 12 HM-134 REMOTE-CONTROL MICROPHONE ■ Panel description The optional HM-134 remotely controls the IC-M503 and provides an optional intercom function. !0 o q w MONI L i DIM e r VOL SQL IC C DIAL DUAL u y t OPTIONAL q POWER SWITCH [PWR] (pgs. 8, 33) When the IC-M503 power is turned ON, push and hold for 2 sec. to turn the HM-134 power ON or OFF. w PTT SWITCH [PTT] (pgs. 8, 33) Push and hold to transmit; release to receive.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 29 (1,1) HM-134 REMOTE-CONTROL MICROPHONE 12 ➥ Enter set mode when pushed and held while turning power ON. (pgs. 14, 37) t DIAL SWITCH [DIAL] ➥ Selects and toggles the regular channels when pushed momentarily. (pgs. 6, 7, 32) ➥ While pushing and holding [H/L], push to select channel group. (pgs. 6, 7 and 32) • The “ EUR” version has International channels only and this function is not available.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 30 (1,1) 12 HM-134 REMOTE-CONTROL MICROPHONE !1 EXTERNAL SPEAKER JACK ➥ Connect the external speaker (an 8 Ω load). The internal speaker can be deactivated via the Set mode programming. (p. 37) • The speaker output employs a BTL (Balanced TransLess) circuit, NEVER connect the speaker cable to ground (or chassis). Use a floating setup.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 31 (1,1) HM-134 REMOTE-CONTROL MICROPHONE 12 ➥ In set mode, indicates the selected condition. (pgs. 14, 37) r VOLUME INDICATOR (p. 33) Appears while audio output level is adjusted. t SQUELCH INDICATOR (p. 33) Appears while noise squelch level is adjusted. y CHANNEL NAME INDICATOR ➥ Channel comment appears (and scrolls) if programmed. (pgs. 9, 38) ➥ In set mode, indicates or scrolls the selected set mode item. (pgs. 14, 37) u SCRAMBLER INDICATOR (pgs.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 32 (1,1) 12 HM-134 REMOTE-CONTROL MICROPHONE ■ Channel selection ï Channel 16 ï U.S.A. and International channels q Push [16•C] to select Channel 16. w Push [DIAL] to return to the condition before selecting Channel 16, or push [Y] or [Z] to select operating channel. q Push [DIAL] to select regular channel. w While pushing and holding [H/L], push [DIAL] to select channel group. • U.S.A. or International can be selected in sequence.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 33 (1,1) HM-134 REMOTE-CONTROL MICROPHONE 12 ■ Receiving and transmitting q Push [PWR] to turn power ON. w Push [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.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 34 (1,1) 12 HM-134 REMOTE-CONTROL MICROPHONE ■ Lock functions ■ Display backlighting The lock function electronically locks keys and switches to prevent accidental changes and function access from the microphone. The function display and switches can be backlit for better visibility under low light conditions. And the backlighting condition can be adjusted independently from the transceiver. • All keys, switches and controllers on the transceiver are functional.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 35 (1,1) HM-134 REMOTE-CONTROL MICROPHONE 12 ■ Call channel programming q While pushing and holding [H/L], push [DIAL] several times to select the desired channel group (USA or INT) to be programmed. w Push and hold [16•C] for 1 sec. to select the call channel of the selected channel group. • “CALL” and call channel number appear. e Push and hold [16•C] again for 3 sec. (until long beep changes to 2 short beeps) to enter call channel programming condition.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 36 (1,1) 12 HM-134 REMOTE-CONTROL MICROPHONE ■ Starting a scan q While pushing and holding [H/L], push [DIAL] several times to select the channel group (USA or INT), if desired. w Push [SCAN] to start priority or normal scan. • “SCAN” appears during normal scan. • The priority channel readout indicates “16”, and “P” and “SCAN” indicators appear during priority scan. • When a signal is received, scan pauses until the signal disappears or resumes after pausing 5 sec.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 37 (1,1) HM-134 REMOTE-CONTROL MICROPHONE 12 ■ Set mode programming • Beep tone “BEEP” ➥ Push [Y] to turn ON, [Z] to turn OFF the beep output. Set mode is used to change the condition of the transceiver’s functions and the microphone’s own functions: Transceiver’s functions— Scan mode (normal or priority), scan resume timer, dualwatch/tri-watch selection, beep tone function, internal speaker, LCD contrast, scrambler code, scrambler type and ATIS check.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 38 (1,1) 12 HM-134 REMOTE-CONTROL MICROPHONE ■ Intercom operation ■ Channel names q Push and hold [DUAL] for 1 sec. to activate the intercom function. q Push [Y]/[Z] to select a channel to program. • While pushing and holding [H/L], push [DIAL] several times to select the channel group (USA and INT), if desired. • “IC” appears in the priority channel readout. • The channel name disappears. w While pushing and holding [H/L], push [16•C].
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 39 (1,1) HM-134 CONNECTIONS AND INSTALLATION 13 ■ HM-134 supplied accessories ■ Installation Accessories included with the HM-134: Qty. q Connection cable (OPC-1000: 6 m; 20 ft) ...................... 1 w Mounting base ................................................................ 1 e Microphone hanger ........................................................ 1 r Screws (M3 × 16; tapping) .............................................
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 40 (1,1) 13 HM-134 CONNECTIONS AND INSTALLATION w To use the supplied cable as a wall socket, see the following steps. e Using the mounting base, carefully mark off the 2 spots where the cable and screws will be fastened. r Drill holes at these marks. t Install the mounting base using screws as shown below. Mounting base Gasket Screw holes (approx. 2 (d) mm; 3⁄32″) 40 Nut Cap y The installation is completed.
01 IC-M503-(1).qxd 01.12.
01 IC-M503-(1).qxd 01.12.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 45 (1,1) INSTALLATION NOTES ■ Installation notes The installation of this equipment should be made in such a manner as to respect the EC recommended electromagnetic field exposure limits (1999/519/EC). The maximum RF power available from this device is 25 watts. The antenna should be installed as high as possible for maximum efficiency and that this installation height should be at least 5 meters above ground (or accessible) level.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page 46 (1,1) DECLARATION OF CONFORMITY 0560 We Icom Inc. Japan 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan Declare on our sole responsibility that this equipment complies with the essential requirements of the Radio and Telecommunications Terminal Equipment Directive, 1999/5/EC, and that any applicable Essential Test Suite measurements have been performed.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page Z (1,1) Count on us! < Intended Country of Use > GER AUT GBR IRL A-6097D-1EU-q Printed in Japan © 2001 Icom Inc.
01 IC-M503-(1).qxd 01.12.17 5:00 PM Page AA (1,1) 10 CHANNEL LIST • International channels CH Frequency (MHz) Transmit Receive 01 156.050 160.650 02 156.100 03 156.150 04 CH Frequency (MHz) Transmit Receive 11 156.550 156.550 160.700 12 156.600 160.750 13 156.650 156.200 160.800 14 05 156.250 06 156.300 CH Frequency (MHz) Transmit Receive 21 157.050 161.650 156.600 22 157.100 156.650 23 157.150 156.700 156.700 24 160.850 15† 156.750 156.750 156.