Icom IC-M502 manual

INSTRUCTION MANUAL iM502 VHF MARINE TRANSCEIVER This device complies with Part 15 of the FCC rules. Operation is sub- ject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.[...]

If your vessel requires assistance, contact other vessels and the Coast Guard by sending a distress call on channel 16. Or , transmit your distress call using digital selective calling on channel 70. USING DIGIT AL SELECTIVE CALLING (Ch 70) DISTRESS CALL PROCEDURE 1 . While lifting up the switch cover , push and hold [DISTRESS] for 5 sec. until you[...]

IMPORT ANT .............................................. i IN CASE OF EMERGENCY ...................... i T ABLE OF CONTENTS ............................ ii CAUTIONS ............................................... iii 1 OPERA TING RULES .................. 1 2 P ANEL DESCRIPTION .......... 2 – 5 ■ Panel description ............................ 2[...]

iii R W ARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock. CAUTION: Changes or modifications to this device, not ex- pressly approved by Icom Inc., could void your authority to operate this device under FCC regulations. NEVER connect the transceiver to a power source of more than 16 V[...]

1 1 OPERA TING RULES 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. • Y ou must monitor channel 16 when you are not operating on another channel. • False or fraudulent distress signals are prohibited and pun- ishable by law . PRI[...]

P ANEL DESCRIPTION 2 2 ■ Panel description WATERPROOF SCAN TAG DSC/ENT POS HI/LO POWER VOL iM502 VHF MARINE SQL LO/DX IC SCR CH/WX DW U/I/C 9 16 DISTRESS Speaker Function display q we r t y u i o !0 !1 q POWER SWITCH [POWER] Push to toggle the transceiver power ON and OFF . w VOLUME CONTROL [VOL] Adjusts the audio level. (p. 8) e SQUELCH CONTROL [...]

➥ While pushing [HI/LO], rotate [CHANNEL] to adjust the brightness of the LCD and switch backlight. y A TTENUA TOR/INTERCOM/SCRAMBLER SWITCH [LO/DX•IC•SCR] ➥ T oggles the attenuator function ON and OFF when pushed momentarily . (p. 8) • “LOCAL” appears when the attenuator is in use. The order of indication precedence is “LOCAL,” ?[...]

■ Function display q BUSY/TRANSMIT INDICA TOR (p. 8) ➥ “BUSY” appears when receiving a signal or when the squelch opens. ➥ “TX” appears while transmitting. w POWER INDICA TOR (p. 8) ➥ “25W” appears when high power is selected. ➥ “1W” appears when low power is selected. e T AG CHANNEL INDICA TOR (p. 13) Appears when a tag c[...]

5 2 P ANEL DESCRIPTION ■ Microphone q PTT SWITCH [PTT] Push and hold to transmit; release to receive. (p. 8) w CHANNEL UP/DOWN SWITCHES [ Y Y ]/[ Z Z ] Push either switch to change the operating memory chan- nel, set mode contents, etc. (p. 8) e TRANSMIT POWER SWITCH [HI/LO] ➥ Same as the [HI/LO] switch on the front panel. (p. 8) ➥ While push[...]

6 3 BASIC OPERA TION ■ Channel selection Channel 16 Channel 16 is the distress and safety channel. It is used for establishing initial contact with another station and for emer- gency communications. Channel 16 is monitored during both dualwatch and tri-watch. While standing by , you must monitor channel 16. ➥ Push [16•9] momentarily to selec[...]

3 BASIC OPERA TION 7 Weather channels There are 10 weather channels. Used for monitoring weather channels from the NOAA (National Oceanographic and At- mospheric Administration) broadcasts. The transceiver can detect a weather alert tone on the se- lected weather channel while receiving the channel, during standby on a regular channel or while scan[...]

■ Receiving and transmitting CAUTION: T ransmitting without an antenna may dam- age 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 T o change the ch[...]

3 BASIC OPERA TION 9 ■ Call channel programming The call channel is used to select channel 9, however , you can program your most often-used channels in each channel group for quick recall. q While pushing [HI/LO], push [CH/WX•DW•U/I/C] one or more times to select the desired channel group (U.S.A., In - ternational, Canada) to be programmed. [...]

3 BASIC OPERA TION 10 ■ Optional voice scrambler operation Activating the scrambler The optional voice scrambler provides private communica- tions. In order to receive or send scrambled transmissions you must first activate the scrambler function. T o activate the function, an optional UT -98 or UT -1 12 is necessary . See p. 33 for selecting th[...]

■ Description Dualwatch monitors channel 16 while you are receiving an- other channel; tri-watch monitors channel 16 and the call channel while receiving another channel. ■ Operation q Select the desired operating channel. w Select dualwatch or tri-watch in set mode. (p. 31) e Push [CH/WX•DW•U/I/C] for 1 sec. to start dualwatch or tri-watch[...]

12 ■ Scan types Scanning is an efficient way to locate signals quickly over a wide frequency range. The transceiver has priority scan and normal scan. When the weather alert function is in use, the selected weather channel is checked while scanning. (p. 31) Set the tag channels (scanned channel) before scanning. Clear the tag channels which inco[...]

5 SCAN OPERA TION 13 INT 25W DUP TAG INTL INT 25W DUP TAG Normalscan BUSY INT 25W DUP TAG Normalscan SCAN TAG Push Scan starts. When a signal is received [Example]: Starting a normal scan. ■ Setting tag channels For more efficient scanning, add desired channels as tag channels or clear tag channels for unwanted channels. Chan- nels set as n[...]

14 6 DSC OPERA TION ■ MMSI code programming The 9-digit MMSI (DSC self ID) code can be programmed at power ON. This function is not available when the MMSI code has been programmed by the dealer . This code programming can be performed only 2 times. q T urn power OFF . w While pushing [DSC/ENT], turn power ON to enter MMSI code programming condit[...]

15 6 DSC OPERA TION r Push [DSC/ENT] to set the position and advance to time setting condition. • Push [LO/DX] to abandon the setting and exit the condition. t Rotate the channel selector to select the digit of current UTC time. y Push [CH/WX] to advance the cursor . • Push [SCAN] to move the cursor backward. • Push [HI/LO] to clear the time.[...]

16 6 DSC OPERA TION ■ Distress call A distress call should be transmitted if, in the opinion of the Master , the ship or a person is in distress and requires imme- diate assistance. NEVER USE THE DISTRESS CALL WHEN YOUR SHIP IS NOT IN AN EMERGENCY . A DISTRESS CALL CAN BE USED ONL Y WHEN IMMEDIA TE HELP IS NEEDED. q Confirm any distress call is [...]

17 6 DSC OPERA TION ■ T ransmitting DSC calls T ransmitting individual call The individual call function allows you to transmit a DSC sig- nal to a specific party only . q Select a desired channel other than channel 70. w Push [DSC/ENT] to select the DSC menu. e Rotate the channel selector to select “individual” and push [DSC/ENT]. r Rotate [...]

18 6 DSC OPERA TION T ransmitting individual acknowledgement T ransmit an acknowledgement (‘able to comply’ or ‘unable to comply’) when an individual call for you is received. q Select a desired channel other than channel 70. w Push [DSC/ENT] to select the DSC menu. e Rotate the channel selector to select “INDV ACK” and push [DSC/ENT]. [...]

19 6 DSC OPERA TION T ransmitting all ships call Large ships use channel 70 as their “listening channel.” When you want to announce a message to these ships, use the “all ships call” function. q Select a desired channel other than channel 70. w Push [DSC/ENT] to select the DSC menu. e Rotate the channel selector to select “All ships” an[...]

20 6 DSC OPERA TION T ransmitting position request call T ransmit a position request call when you want to know your friend’s current position, etc. q Select a desired channel other than channel 70. w Push [DSC/ENT] to select the DSC menu. e Rotate the channel selector to select “POS request” and push [DSC/ENT]. r Push [DSC/ENT] to transmit t[...]

21 6 DSC OPERA TION ■ Setting the distress information The nature of the distress call should be included in the dis- tress call. q Push [DSC/ENT] to select the DSC menu. w Rotate the channel selector to select “DTRS set” and push [DSC/ENT]. e Rotate the channel selector to select the nature of the dis- tress, then push [DSC/ENT]. • ‘Unde[...]

22 6 DSC OPERA TION ■ DSC individual ID A total of 40 DSC address ID’s can be programmed and named with up to 10 characters. Programming address ID q Push [DSC/ENT] to select the DSC menu. w Rotate the channel selector to select “Set-up” and push [DSC/ENT]. e Rotate the channel selector to select ‘Add ID,’ then push [DSC/ENT]. r Set the[...]

23 6 DSC OPERA TION r Select the desired ID name with the channel selector , then push [DSC/ENT]. t Push [DSC/ENT] to delete the address ID; push other switch to exit the condition. ■ Receiving DSC calls Receiving a distress call While monitoring channel 70 and a distress call is received: ➥ Emergency alarm sounds for 2 minutes. • Push any sw[...]

24 6 DSC OPERA TION Receiving a distress relay acknowledgement While monitoring channel 70 and a distress relay acknowl- edgement is received: ➥ Emergency alarm sounds for 2 minutes. • Push any switch to stop the alarm. ➥ “Received DTRS RL Y ACK” appears in the display; then, channel 16 is automatically selected. Receiving a distress rela[...]

25 6 DSC OPERA TION Receiving a geographical area call While monitoring channel 70 and a geographical area call (for the area you are in) is received: ➥ Emergency alarm or beeps sound depending on the re- ceived category . ➥ “Geographic Distress,” “Geographic Safety ,” “Geographic Urgency” or “Geographic Routine” appears in the [...]

26 6 DSC OPERA TION ■ DSC set mode Offset time This item sets the offset time from the UTC (Universal Time Coordinated) time. q Push [DSC/ENT] to select the DSC menu. w Rotate the channel selector to select “Set-up” and push [DSC/ENT]. e Rotate the channel selector to select ‘Offset time,’ then push [DSC/ENT]. r Set the offset time from t[...]

27 6 DSC OPERA TION MMSI code check The 9-digit MMSI (DSC self ID) code can be checked in set mode. q Push [DSC/ENT] to select the DSC menu. w Rotate the channel selector to select “Set-up” and push [DSC/ENT]. e Rotate the channel selector to select ‘MMSI check,’ then push [DSC/ENT]. r Check the 9-digit MMSI (DSC self ID) code. t Push [DSC/[...]

28 6 DSC OPERA TION ■ Receive messages The transceiver automatically stores up to 20 distress mes- sages and 20 other messages. The messages can be used as an assistance to the logbook. q Push [DSC/ENT] to select the DSC menu. w Rotate the channel selector to select “RCV calls” and push [DSC/ENT]. • “RCV calls” does not appear until a d[...]

29 7 INTERCOM OPERA TION ■ Intercom operation The optional intercom function allows you to talk to the deck from the cabin. The optional HM-127 REMOTE-CONTROL MI- CROPHONE is required for intercom operation. Connect an optional HM-127 as described on p. 35. • Transmitting is impossible during intercom operation. • The received signal is muted[...]

8 SET MODE 30 Beep tone Beep Scan mode Scan mode Weather alert WX alert Scan resume timer Scan timer Attenuation level Attenuation level Internal speaker Internal speaker Scrambler code Scrambler code Scrambler type Scrambler type Dual/tri watch DUAL/TRI DSC watch DSCwatch LCD contrast LCD contrast Push 9 16 ■ Set mode programmi[...]

8 SET MODE 31 ■ Set mode items 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 se- quence while monitoring channel 16. Scan resume timer The scan resume timer can be selected as a pause (OFF) or timer scan (ON[...]

32 8 SET MODE DSC watch DSC watch monitors channel 70 while you are receiving an- other channel. If a distress signal is received on channel 70, the transceiver monitors channel 16 and 70 alternately until the distress sig- nal disappears. If a signal is received on another channel, DSC watch pauses until the signal disappears. This function may no[...]

33 8 SET MODE LCD contrast This item adjusts the contrast of the LCD in 8 steps. The optional HM-127 has it’s own setting for the beep tone. Attenuation level This item sets the receive attenuation level for the attenuator function from 3 levels. Scrambler code When an optional scrambler unit is connected, the scrambler code can be set depending [...]

■ Supplied accessories The following accessories are supplied: Qty . q Mounting bracket ............................................................ 1 w Microphone hanger (OPC-562) ...................................... 1 e Mic hanger screws (3 × 16) ............................................ 2 r Mounting screws (5 × 20) .....................[...]

35 9 CONNECTIONS AND MAINTENANCE ■ Connections q DC POWER CONNECTOR Connects the supplied DC power cable from this connector to an external 12 V DC power source. w EXTERNAL MICROPHONE JACK Connects to optional HM-127 REMOTE-CONTROL MICRO- PHONE . e ANTENNA CONNECTOR Connects a marine VHF antenna with a PL-259 connector to the transceiver . CAUTIO[...]

36 9 CONNECTIONS AND MAINTENANCE ■ Mounting the transceiver 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 supplied screws (M5 × 20) to a surface which is more than 10 mm thick and can support more than 5 kg. ?[...]

37 9 CONNECTIONS AND MAINTENANCE 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. CAUTION: KEEP the transceiver and microphone at least 1 meter away from your vessel’s magnetic navigation compass. q Using the template on the last page, caref[...]

38 9 CONNECTIONS AND MAINTENANCE ■ 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 equip- ment damage. Follow the case opening procedure shown here when you want to install an optional unit, etc. q Remove the [...]

39 9 CONNECTIONS AND MAINTENANCE ■ Dimensions 145.0 (5 23 ⁄ 32 ˝) 165.0 (6 1 ⁄ 2 ˝) 31.4 (1 1 ⁄ 4 ˝) 53.0 (2 3 ⁄ 32 ˝) Unit: mm (inch) 110.0 (4 11 ⁄ 32 ˝) 109.4 (4 5 ⁄ 16 ˝)[...]

10 TROUBLESHOOTING 40 PROBLEM POSSIBLE CA USE SOLUTION REF . No power comes ON. • Bad connection to the power supply . • Check the connection to the transceiv er. p . 35 No sound comes from the speaker . • Squelch le vel is too deep . • V olume lev el is too low . • Speaker has been e xposed to water . • Internal speaker is tur ned OFF [...]

11 CHANNEL LIST 41 Channel number USA CAN T ransmit Receive 01 156.050 160.650 01A 156.050 156.050 02 156.100 160.700 03 156.150 160.750 03A 156.150 156.150 156.200 160.800 04A 156.200 156.200 156.250 160.850 05A 05A 156.250 156.250 06 06 156.300 156.300 156.350 160.950 07A 07A 156.350 156.350 08 08 156.400 156.400 09 09 156.450 156.450 10 10 156.5[...]

42 12 SPECIFICA TIONS AND OPTIONS ■ Specifications General • Frequency coverage : T ransmit 156.025–157.425 MHz Receive 156.050–163.275 MHz • Mode : FM (16K0G3E) DSC (16K0G2B) • Channel spacing : 25 kHz • Current drain (at 13.8 V) : TX high 6.0 A max. Max. audio 1.2 A max. • Power supply requirement : 13.8 V DC ± 15% • Frequency[...]

43 12 SPECIFICA TION AND OPTIONS ■ Options • MB-75 FLUSH MOUNT For mounting the transceiver to a panel. • SP-5 EXTERNAL SPEAKER A large, external speaker for superior audio output. • SP-10 EXTERNAL SPEAKER A compact, external speaker . Features easy installation. • UT -98 VOICE SCRAMBLER UNIT (pgs. 10, 33) • UT -1 12 VOICE SCRAMBLER UNI[...]

44 13 HM-127 REMOTE-CONTROL MICROPHONE OPTIONAL ■ Panel description The optional HM-127 remotely controls the IC-M502 and pro- vides an optional intercom function. q POWER SWITCH [PWR] (pgs. 8, 51) Push for 2 sec. to turn the HM-127 power ON or OFF when the IC-M502 power is turned ON. w PTT SWITCH [PTT] (pgs. 8, 51) Push and hold to transmit; rel[...]

45 13 HM-127 REMOTE-CONTROL MICROPHONE ➥ While pushing [H/L], selects one of 3 regular channels in sequence when pushed. (pgs. 6, 7, 50) • International, U.S.A. and Canadian channels are available for regular channels. ➥ Starts dualwatch or tri-watch when pushed for 1 sec. (pgs. 1 1, 54) ➥ Stops dualwatch or tri-watch when either is activat[...]

46 13 HM-127 REMOTE-CONTROL MICROPHONE ■ Function display q CHANNEL GROUP INDICA TOR (pgs. 6, 50) Indicates whether an International (INT), U.S.A. (USA) or Canadian (CAN) channel is selected. w KEY LOCK INDICA TOR (p. 52) ➥ Appears while the key lock function is in use. ➥ Flashes while the all key lock function is in use. e CHANNEL NUMBER REA[...]

47 13 HM-127 REMOTE-CONTROL MICROPHONE !1 DUAL/TRI W A TCH INDICA TOR (pgs. 1 1, 54) “DUAL” appears during dualwatch; “TRI” during tri-watch. !2 WEA THER CHANNEL INDICA TOR (pgs. 7, 50) ➥ “WX” appears when a weather channel is selected. ➥ “AL T” appears when the weather alert function is in use; flashes when an alert tone is re[...]

48 13 HM-127 REMOTE-CONTROL MICROPHONE ■ Installation The optional HM-127 can be connected to the transceiver di- rectly , as well as via the supplied connection cable for longer distance remote operation. The connector of the connection cable can be installed into a cabinet, wall, etc., as a built-in plug. For longer distance remote operation, t[...]

49 13 HM-127 REMOTE-CONTROL MICROPHONE 50 (d) mm; 1 31 ⁄ 32 ˝ 23 (d) mm; 29 ⁄ 32 ˝ 24 to 27 (d) mm ( 15 ⁄ 16 to 1 1 ⁄ 16 ˝) 5 mm; 3 ⁄ 16 ˝ Gasket Mounting base Cap Nut 2 mm; 3 ⁄ 32 ˝[...]

50 13 HM-127 REMOTE-CONTROL MICROPHONE ■ Channel selection Channel 16 q Push [16] to select channel 16. w Push [CH/WX] to return to the condition before selecting chan- nel 16, or push [ Y ] or [ Z ] to se- lect operating channel. Call channel q Push [16•9] for 1 sec. to select call channel. w Push [CH/WX] to return to the condition before sele[...]

51 13 HM-127 REMOTE-CONTROL MICROPHONE ■ 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 nose, if necessary . e Push [ Y ]/[ Z ] to select the desired channel. • When receiving a signal, “ ” appears and audio is emitted [...]

52 13 HM-127 REMOTE-CONTROL MICROPHONE ■ Lock functions The lock function electronically locks keys and switches to prevent accidental changes and function access from the mi- crophone. • All keys, switches and controllers on the transceiver are functional. Activating the lock function ➥ Push [SQL] while pushing [H/L] to turn the lock functio[...]

53 13 HM-127 REMOTE-CONTROL MICROPHONE ■ Call channel programming q Push [CH/WX•U/I/C] several times while pushing [H/L] to select the desired channel group (USA, INT , CAN) to be programmed. w Push [16•9] for 1 sec. to select the call channel of the selected chan- nel group. • “CALL” and call channel number ap- pear . e Push [16•9] a[...]

54 13 HM-127 REMOTE-CONTROL MICROPHONE ■ Starting a scan q Push [CH/WX•U/I/C] several times while pushing [H/L] to select the channel group (USA, INT , CAN), if desired. • When the weather alert function is in use, select the desired weather channel with [CH/WX] and [ Y ]/[ Z ]. w Push [SCN] to start priority or normal scan. • “SCAN” ap[...]

55 13 HM-127 REMOTE-CONTROL MICROPHONE ■ Set mode programming Set mode is used to change the condition of the transceiver’s functions and the microphone’s own functions: T ransceiver ’s functions— scan mode (normal or priority), scan resume timer , weather alert, dualwatch/tri-watch selection, DSC watch, transceiver ’s beep tone, intern[...]

56 13 HM-127 REMOTE-CONTROL MICROPHONE ■ Intercom operation q Push [LO/DX•IC] for 1 sec. to ac- tivate the intercom function. • “IC” appears in the priority channel readout. • The channel name disappears. w Push [PTT] to talk. • “ ” appears in the channel name indicator . e Release [PTT] to listen. • “ ” appears in the chann[...]

TEMPLA TE 149 (5 7 ⁄ 8 ˝) 92 (3 5 ⁄ 8 ˝) 4–R11 Unit: mm (inch) 24 to 27 (d) mm ( 15 ⁄ 16 to 1 1 ⁄ 16 ˝) 2 mm; 3 ⁄ 32 ˝ MB-75 HM-127 Cut here[...]

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