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Icom IC-M502 Instruction Manual

Other manuals for IC-M502: Service Manual, Instruction Manual, Service Manual
Manual is about: VHF MARINE TRANSCEIVER

Summary of IC-M502

  • Page 1

    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 c...

  • Page 2

    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 digital selective calling (ch 70) distress call procedure 1. While lifting up the switch cover,...

  • Page 3

    Important .............................................. I in case of emergency ...................... I table of contents ............................ Ii cautions ............................................... Iii 1 operating rules .................. 1 2 panel description .......... 2 – 5 ■ panel ...

  • Page 4

    Iii r warning! 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...

  • Page 5: Operating Rules

    1 1 operating 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. • you must monitor channel 16 when you are not operating on another channel. • false or fraudulent distress signals are...

  • Page 6: Panel Description

    Panel 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 w e 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] adj...

  • Page 7

    ➥ while pushing [hi/lo], rotate [channel] to adjust the brightness of the lcd and switch backlight. Y attenuator/intercom/scrambler switch [lo/dx•ic•scr] ➥ toggles the attenuator function on and off when pushed momentarily. (p. 8) • “local” appears when the attenuator is in use. The order of indicat...

  • Page 8: Function Display

    ■ function display q busy/transmit indicator (p. 8) ➥ “busy” appears when receiving a signal or when the squelch opens. ➥ “tx” appears while transmitting. W power indicator (p. 8) ➥ “25w” appears when high power is selected. ➥ “1w” appears when low power is selected. E tag channel indicator (p. 13) ...

  • Page 9: Microphone

    5 2 panel 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] swi...

  • Page 10: Basic Operation

    6 3 basic operation ■ 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 chan...

  • Page 11: Microphone Lock Function

    3 basic operation 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, ...

  • Page 12: Receiving and Transmitting

    ■ receiving and transmitting caution: transmitting 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 t...

  • Page 13: Call Channel Programming

    3 basic operation 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...

  • Page 14

    3 basic operation 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. To activate the function, an optional ut-98 or ut-112...

  • Page 15: Description

    ■ 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] ...

  • Page 16: Scan Types

    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) bef...

  • Page 17: Setting Tag Channels

    5 scan operation 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...

  • Page 18: Dsc Operation

    14 6 dsc operation ■ 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 turn power off. W while pushing [dsc/ent], turn po...

  • Page 19: Position Indication

    15 6 dsc operation 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 b...

  • Page 20: Distress Call

    16 6 dsc operation ■ 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 only when immediate help ...

  • Page 21: Transmitting Dsc Calls

    17 6 dsc operation ■ transmitting dsc calls transmitting 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 “in...

  • Page 22

    18 6 dsc operation transmitting individual acknowledgement transmit 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 sel...

  • Page 23

    19 6 dsc operation transmitting 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 chann...

  • Page 24

    20 6 dsc operation transmitting position request call transmit 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 ...

  • Page 25

    21 6 dsc operation ■ 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 d...

  • Page 26: Dsc Individual Id

    22 6 dsc operation ■ 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 ‘ad...

  • Page 27: Receiving Dsc Calls

    23 6 dsc operation 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...

  • Page 28

    24 6 dsc operation 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 rly ack” appears in the display; then, channel 16 is automatical...

  • Page 29

    25 6 dsc operation 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 “geograph...

  • Page 30: Dsc Set Mode

    26 6 dsc operation ■ 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 ...

  • Page 31

    27 6 dsc operation 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-di...

  • Page 32: Receive Messages

    28 6 dsc operation ■ 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]. • ...

  • Page 33: Intercom Operation

    29 7 intercom operation ■ 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 interco...

  • Page 34: Set Mode

    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...

  • Page 35: Set Mode Items

    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 ca...

  • Page 36

    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...

  • Page 37

    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 con...

  • Page 38: Supplied Accessories

    ■ 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 m...

  • Page 39: Connections

    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 wit...

  • Page 40: Mounting The Transceiver

    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 1...

  • Page 41

    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 compas...

  • Page 42: Optional Unit Installation

    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 ...

  • Page 43: Dimensions

    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 ˝).

  • Page 44: Troubleshooting

    10 troubleshooting 40 problem possible cause solution ref. No power comes on. • bad connection to the power supply. • check the connection to the transceiver. P. 35 no sound comes from the speaker. • squelch level is too deep. • volume level is too low. • speaker has been exposed to water. • interna...

  • Page 45: Channel List

    11 channel list 41 channel number usa can transmit 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 ...

  • Page 46: Specifications And Options

    42 12 specifications and options ■ specifications general • frequency coverage : transmit 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: ...

  • Page 47: Options

    43 12 specification 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,...

  • Page 48: Panel Description

    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 [...

  • Page 49

    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. 11, 54) ➥ stops dual...

  • Page 50: Function Display

    46 13 hm-127 remote-control microphone ■ function display q channel group indicator (pgs. 6, 50) indicates whether an international (int), u.S.A. (usa) or canadian (can) channel is selected. W key lock indicator (p. 52) ➥ appears while the key lock function is in use. ➥ flashes while the all key loc...

  • Page 51: Hm-127 Supplied Accessories

    47 13 hm-127 remote-control microphone !1 dual/tri watch indicator (pgs. 11, 54) “dual” appears during dualwatch; “tri” during tri-watch. !2 weather channel indicator (pgs. 7, 50) ➥ “wx” appears when a weather channel is selected. ➥ “alt” appears when the weather alert function is in use; flashes wh...

  • Page 52: Installation

    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-i...

  • Page 53

    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 ˝.

  • Page 54: Channel Selection

    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 ...

  • Page 55: Receiving and Transmitting

    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 si...

  • Page 56: Lock Functions

    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] ...

  • Page 57: Call Channel Programming

    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 channe...

  • Page 58: Starting A Scan

    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...

  • Page 59: Set Mode Programming

    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: transceiver’s functions— scan mode (normal or priority), scan resume timer, weather alert, dualwatch/tri-watch selection, dsc watc...

  • Page 60: Intercom Operation

    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. •...

  • Page 61: Template

    Template 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.

  • Page 62

    Count on us! 1-1-32 kamiminami, hirano-ku, osaka 547-0003 japan a-5663h-1ex- w printed in japan © 2000 icom inc..