INSTRUCTION MANUAL VHF MARINE TRANSCEIVER iM402 This device complies with Part 15 of the FCC rules. Operation is subject 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.
NOTE FOR RF SAFETY C AU TIO N 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 6 meters above ground (or accessible) level.
IN CASE OF EMERGENCY 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 CHANNEL 16 USING DIGITAL SELECTIVE CALLING (Ch 70) DISTRESS CALL PROCEDURE DISTRESS CALL PROCEDURE 1. While lifting up the switch cover, push and hold [DISTRESS] for 5 sec. until you hear 5 short beeps change to one long beep. 2. Wait for an acknowledgment from a coast station.
TABLE OF CONTENTS ■ Position indication ......................... 11 ■ Distress call .................................. 12 ■ Transmitting DSC calls ................. 13 ■ DSC individual ID ......................... 16 ■ Receiving DSC calls ..................... 17 SAFETY TRAINING INFORMATION ......... i IMPORTANT .............................................. i IN CASE OF EMERGENCY ...................... ii TABLE OF CONTENTS ........................... iii CAUTIONS .........................................
CAUTIONS RWARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock. AVOID the use of chemical agents such as benzine or alcohol when cleaning, as they may damage the transceiver surfaces. CAUTION: Changes or modifications to this device, not ex- BE CAREFUL! The transceiver rear panel will become hot when operating continuously for long periods. pressly approved by Icom Inc., could void your authority to operate this device under FCC regulations.
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 prohibited and punishable by law. ◊ PRIVACY • Information overheard but not intended for you cannot lawfully be used in any way. • Indecent or profane language is prohibited.
PANEL DESCRIPTION ■ Panel description Speaker u Function display w 2 ➥ While pushing this switch, other switches perform secondary functions. t CHANNEL SWITCH [CH/WX•DUAL] ➥ Selects and toggles the regular channels and weather channel when pushed momentarily. (p. 5) ➥ While pushing [HI/LO], selects one of 3 regular channels in sequence when pushed. (p. 5) • International, U.S.A. and Canadian channels are available for regular channels.
2 PANEL DESCRIPTION ■ Function display !1 q w TX BUSY TAG CALL U !2 LOW D WX ALT t y u i GPS DSC POS REPLY o I C q TRANSMIT INDICATOR (p. 6) “TX” appears while transmitting. w BUSY INDICATOR (p. 6) “BUSY” appears when receiving a signal or when the squelch opens. e TAG CHANNEL INDICATOR (p. 10) Appears when a tag channel is selected. r CALL CHANNEL INDICATOR “CALL” appears when the call channel is selected. (p. 5) t LOW POWER INDICATOR (p. 6) “LOW” appears when low power is selected.
PANEL DESCRIPTION ■ Microphone 2 ➥ While pushing [H/L], enters memory name programming condition. (p. 7) ➥ While pushing [16] on the supplied microphone, turn power ON to toggle the lock function ON and OFF. (p. 6) q Microphone w e q PTT SWITCH [PTT] Push and hold to transmit; release to receive. (p. 6) Y]/[Z Z] w CHANNEL UP/DOWN SWITCHES [Y Push either switch to change the operating memory channel, set mode contents, etc. (p.
3 BASIC OPERATION ◊ U.S.A., Canadian and international channels ■ Channel selection ◊ 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 ] momentarily to select channel 16.
BASIC OPERATION ◊ Weather channels There are 10 weather channels. Used for monitoring weather channels from the NOAA (National Oceanographic and Atmospheric Administration) broadcasts. The transceiver can detect a weather alert tone on the selected weather channel while receiving the channel, during standby on a regular channel or while scanning. (p. 20) q Push [CH/WX] once or twice to select a weather channel. • “WEATHER” appears when a weather channel is selected.
3 BASIC OPERATION ■ Call channel programming ■ Channel names 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. Memory channels can be tagged with alphanumeric names of up to 10 characters each. q While pushing [H/L], push [CH/WX] one or more times to select the desired channel group (U.S.A., International, Canada) to be programmed. w Push [16 ] for 1 sec. to select the call channel of the selected channel group.
DUAL WATCH/TRI-WATCH ■ Description [Example] Dualwatch monitors channel 16 while you are receiving another channel; tri-watch monitors Channel 16 and the call channel while receiving another channel. Operating dual-watch on INT channel 25 Call channel Operating tri-watch on INT channel 25 TAG DUALWATCH/TRI-WATCH SIMULATION TAG Dual-watch starts. D I BUSY BUSY TAG • If a signal is received on Channel 16, dualwatch/tri-watch pauses on Channel 16 until the signal disappears.
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. When the weather alert function is in use, the selected weather channel is checked while scanning. (p. 20) PRIORITY SCAN CH 02 CH 16 CH 05 CH 01 CH 03 CH 04 Priority scan searches through all tag channels in sequence while monitoring Channel 16.
SCAN OPERATION 5 ■ Setting tag channels ■ Starting a scan For more efficient scanning, add desired channels as tag channels or clear tag channels for unwanted channels. Channels set as non-tag channels will be skipped during scanning. Tag channels can be assigned to each channel group (U.S.A., International, Canada) independently. Set scan type (priority or normal scan) and scan resume timer in advance using set mode. (p. 20) q Set tag channels as described at left.
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], turn power ON to enter MMSI code programming condition. e After the display appears, release [DSC]. r Select the desired number by pushing [Y]/[Z] . t Push [CH/WX] to advance the cursor.
DSC OPERATION ■ Distress call 6 ➥ Distress alert contains (default); A distress call should be transmitted if, in the opinion of the Master, the ship or a person is in distress and requires immediate assistance. NEVER USE THE DISTRESS CALL WHEN YOUR SHIP IS NOT IN AN EMERGENCY. A DISTRESS CALL CAN BE USED ONLY WHEN IMMEDIATE HELP IS NEEDED. q Confirm any distress call is not being received. w While lifting up the switch cover, push the [DISTRESS] switch for 5 sec. to transmit the distress call.
6 DSC OPERATION ■ Transmitting DSC calls u Stan dby on Channel 70 until an acknowledgement is received. ◊ Transmitting individual call The individual call function allows you to transmit a DSC signal to a specific party only. q Select a desired channel other than Channel 70. w Push [DSC] to select the DSC menu e Push [Y]/[Z] to select “individual” and push [DSC]. r Push [Y]/[Z] to select the desired preprogrammed individual address. I • The ID code for the individual call can be set in advance. (p.
DSC OPERATION 6 ◊ Transmitting individual acknowledgement ◊ Transmitting all ships call Transmit an acknowledgement (‘able to comply’ or ‘unable to comply’) when an individual call for you is received. 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 “RCV Individual” scrolls. w Push [Y] or [Z] to select the acknowledgement “ABLE” or “UNABLE”. TAG TAG q Select a desired channel other than Channel 70.
6 DSC OPERATION ◊ Transmitting position request call ◊ Transmitting position reply 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] to select the DSC menu e Push [Y]/[Z] to select “POS REQUEST”. Transmit a position reply call when a position request call is received. q ”DSC” appears and a“RCV Pos request” scrolls in the display.
DSC OPERATION 6 ◊ Deleting address ID ■ DSC individual ID A total of 40 DSC address ID’s can be programmed and named with up to 10 characters. q Push [DSC] to select the DSC menu. w Push [Y]/[Z] to select “ADDRESS” and push [DSC]. e Push [Y]/[Z] to select ‘DEL,’ then push [DSC]. TAG ◊ Programming address ID D • When no address ID is programmed, the transceiver exits the condition automatically. q Push [DSC] to select the DSC menu. w Push [Y]/[Z] to select “ADDRESS” and push [DSC].
6 DSC OPERATION ■ Receiving DSC calls • Push any switch to stop the alarm. ➥ “RCV Distress Relay ACK” scrolls in the display; then, Channel 16 is automatically selected. ◊ Receiving a distress call While monitoring Channel 70 and a distress call is received: ➥ Emergency alarm sounds for 2 minutes. ◊ Receiving a distress relay call TAG DSC I • Push any switch to stop the alarm. ➥ “DSC” appears and and “RCV Distress” scrolls in the display, then Channel 16 is automatically selected.
DSC OPERATION ◊ Receiving an individual call 6 ◊ Receiving a position reply call While monitoring Channel 70 and an individual call is received: ➥ Emergency alarm or beeps sound deI pending on the received category. ➥ “RCV Individual” scrolls in the display, then the channel specified by the calling station is automatically selected for checking the channel condition.
7 INTERCOM OPERATION ■ Intercom operation TAG The optional intercom function allows you to talk to the deck from the cabin. The optional HM-127 REMOTE-CONTROL MICROPHONE is required for intercom operation. INT I IC-M402 (caller) Connect an optional HM-127 as described on p. 37. • Transmitting is impossible during intercom operation. • The received signal is muted during intercom operation. q Push [DSC] for 1 sec. to enter intercom mode.
SET MODE ■ Set mode programming ■ Set mode items Set mode is used to change the conditions of some of the transceiver’s functions. ◊ Scan mode • Available functions may differ depending on dealer setting. • The optional HM-127 has it’s own settings for the beep tone and LCD contrast. q Turn power OFF. w While pushing [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.
8 SET MODE ◊ Dual/tri watch ◊ LCD contrast This item can be selected as dual watch or tri-watch. (p. 8) This item adjusts the contrast of the LCD in 4 steps. Dual watch (default) Tri-watch ◊ DSC watch DSC watch monitors Channel 70 while you are receiving another channel. DSC watch ON (default) DSC watch OFF If a distress signal is received on Channel 70, the transceiver monitors Channel 16 and 70 alternately until the distress signal disappears.
CONNECTIONS AND MAINTENANCE 9 ■ Supplied accessories ■ Warning sticker attachment The following accessories are supplied: Qty. q Mounting bracket ............................................................ 1 w DC power cable (OPC-891) ............................................ 1 e Microphone hanger ......................................................... 1 r Mounting bracket knobs ................................................. 2 t Mounting screws (5 × 20) .........................................
9 CONNECTIONS AND MAINTENANCE ■ Connections q t r r GPS RECEIVER JACK Connects to an optional GPS receiver to input the position data and time data. • A GPS receiver appropriate for the IC-M402 is not supplied from Icom. An NMEA0183 ver. 2.0 is required for position or time indication, etc. Ask your dealer about the GPS receiver. RCA NMEA (+) w e q DC POWER CONNECTOR Connects the supplied DC power cable from this connector to an external 12 V DC power source.
CONNECTIONS AND MAINTENANCE 9 ■ Mounting the transceiver ◊ Using the supplied mounting bracket EXAMPLE 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. • Mount the transceiver so that the face of the transceiver is at 90° to your line of sight when operating it.
9 CONNECTIONS AND MAINTENANCE ■ Dimensions 51 mm (2 in) 28.5 mm (1 1 8 in) 67 mm (2 5 8 in) 152 mm (6 in) 25 86.
TROUBLESHOOTING PROBLEM No power comes ON. POSSIBLE CAUSE •Bad connection to the power supply. No sound comes from •Squelch level is too deep. the speaker. •Volume level is too low. •Speaker has been exposed to water. SOLUTION 10 REF. •Check the connection to the transceiver. p. 22 •Set squelch to the threshhold point. •Set [VOL] to a suitable level. •Drain water from the speaker. p. 6 p. 6 Transmitting is impossi- •Some channels are for low power or •Change channels.
11 CHANNEL LIST Channel number Frequency (MHz) Channel number Frequency (MHz) Channel number Frequency (MHz) Channel number Frequency (MHz) USA INT CAN Transmit Receive USA INT CAN Transmit Receive USA INT CAN Transmit Receive USA INT CAN Transmit Receive 156.050 160.650 19A 64A 83A 156.050 156.050 20 20A 01 01 01A 02 02 156.100 160.700 03 03 156.150 160.750 03A 156.150 156.150 04 156.250 160.850 06 66A 66A*1 156.325 156.325 21b Rx only 161.650 67*2 67 67 156.375 156.
SPECIFICATIONS AND OPTIONS 12 ■ Specifications ◊ General • Frequency coverage Transmit Receive • Mode ◊ Transmitter : 156.025–157.425 MHz 156.050–163.275 MHz : 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.
12 SPECIFICATTIONS AND OPTIONS ■ Options • MB-69 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. • HM-127 REMOTE-CONTROL MICROPHONE (p. 30) External microphone-type controller. Provides optional intercom operation. 6 m (20 feet) microphone cable and mounting base included. Black and white colours are available.
OPTIONAL HM-127 REMOTE-CONTROL MICROPHONE ■ Panel description The optional HM-127 remotely controls the IC-M402 and provides an optional intercom function. q w e r !0 o i u y t 13 w PTT SWITCH [PTT] (p. 8, 44) Push and hold to transmit; release to receive. Y]/[Z Z] e CHANNEL UP/DOWN SWITCHES [Y ➥ Push either switch to change the operating channel, set mode contents, etc. (p. 8, 44) ➥ While pushing [H/L], push [Y]/[Z] to adjust the brightness of the LCD and switch backlight. (p.
13 HM-127 REMOTE-CONTROL MICROPHONE t CHANNEL/DUALWATCH/TRI-WATCH SWITCH [CH/WX•DW•U/I/C] ➥ Selects and toggles the regular channels and weather channel when pushed momentarily. (p. 6, 7, 43) ➥ While pushing [H/L], selects one of 3 regular channels in sequence when pushed. (p. 6, 7, 43) • International, U.S.A. and Canadian channels are available for regular channels. ➥ Starts dualwatch or tri-watch when pushed for 1 sec. (p. 11, 47) ➥ Stops dualwatch or tri-watch when either is activated.
HM-127 REMOTE-CONTROL MICROPHONE ■ Function display i u q w e r t CAN USA INT L r VOLUME INDICATOR (p. 37) Appears while audio output level is adjusted. t SQUELCH INDICATOR (p. 37) Appears while noise squelch level is adjusted. !6 !5 !4 !3 TX BUSY TAG CALL LOW WX ALT DUP DUAL P SCAN TRI !2 !1 !0 o VOL SQL 13 y q CHANNEL GROUP INDICATOR (p. 6, 37) Indicates whether an International (INT), U.S.A. (USA) or Canadian (CAN) channel is selected. w KEY LOCK INDICATOR (p.
13 HM-127 REMOTE-CONTROL MICROPHONE !2 WEATHER CHANNEL INDICATOR (p. 5, 36) ➥ “WX” appears when a weather channel is selected. ➥ “ALT” appears when the weather alert function is in use; flashes when an alert tone is received. !3 LOW POWER INDICATOR (p. 6, 37) Appears when low power is selected. !4 CALL CHANNEL INDICATOR (p. 5, 36) Appears when the call channel is selected. ■ HM-127 supplied accessories Accessories included with the HM-127: Qty. q Connection cable (OPC-1000: 6 m; 20 ft) ..................
HM-127 REMOTE-CONTROL MICROPHONE ■ Installation The optional HM-127 can be connected to the transceiver directly, 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. 13 w To use the supplied cable as a wall socket, follow 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.
13 HM-127 REMOTE-CONTROL MICROPHONE Mounting base 5 mm; 3⁄16˝ 50 (d) mm; 131⁄32˝ 23 (d) mm; 29⁄32˝ 24 to 27 (d) mm (15⁄16 to 11⁄16˝) 2 mm; 3⁄32˝ Nut Gasket 35 Cap
HM-127 REMOTE-CONTROL MICROPHONE 13 ■ Channel selection ◊ Channel 16 ◊ U.S.A., International and Canadian channels q Push [16] to select Channel 16. w Push [CH/WX] to return to the condition before selecting Channel 16, or push [Y] or [Z] to select operating channel. q Push [CH/WX] to select regular channel. • Push [CH/WX] again, if weather channel appears. w Push [CH/WX•U/I/C], while pushing [H/L], to select channel group. • U.S.A.
13 HM-127 REMOTE-CONTROL MICROPHONE ■ Receiving and transmitting q Turn power ON r Set output power t Push and hold [PTT] to transmit, then speak into the microphone. • “ ” appears. • Channel 70 cannot be used for transmission (for GMDSS use). t Push to transmit y Release to receive e Set channel w Set volume w Set squelch, if required t Speak into microphone q Push [PWR] to turn power ON. w Push [VOL], then [Y]/[Z] to adjust audio output level.
HM-127 REMOTE-CONTROL MICROPHONE 13 ■ 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. q Push [VOL•DIM] for 1 sec.
13 HM-127 REMOTE-CONTROL MICROPHONE ■ Call channel programming. ■ Starting a scan 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. 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. w Push [16•9] for 1 sec.
HM-127 REMOTE-CONTROL MICROPHONE r To cancel the tag channel setting, push [SCN•TAG] for 1 sec. •“ ” disappears. • Clearing all tag channels in the selected channel group ➥ Push [SCN•TAG] while pushing [H/L] for 3 sec. (until long beep changes to 2 short beeps). ■ Dualwatch/Tri-watch operation q Push [Y]/[Z] to select the desired channel. • Push [CH/WX•U/I/C] several times while pushing [H/L] to select the channel group (USA, INT, CAN), if desired. w Push [CH/WX•DW] for 1 sec.
13 HM-127 REMOTE-CONTROL MICROPHONE ■ Intercom operation ■ Channel names q Push [LO/DX•IC] for 1 sec. to activate the intercom function. q Push [Y]/[Z] to select a channel to program. • Push [CH/WX•U/I/C] several times while pushing [H/L] to select the channel group (USA, INT, CAN), if desired. • “IC” appears in the priority channel readout. • The channel name disappears. w While pushing [H/L], push [16•9]. • The 1st character of the currently programmed comment flashes. w Push [PTT] to talk.
TEMPLATE 139 (515 32 ) HM-127 MB-69 2 mm; 3 32 53 (23 32 ) 24 to 27 (d) mm (15 16 to 11 16 ) Unit: mm (inch) 42
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