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Summary of Contents for Icom IC-M402A
- Page 1 INSTRUCTION MANUAL VHF MARINE TRANSCEIVER iM402A (REMOTE-CONTROL MIC COMPATIBLE) iM402SA...
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Page 2: Important
Thank you for purchasing this Icom product. The IC-M402A/M402SA VHF MARINE TRANSCEIVERS and built with Icom’s state of the art technology and crafts- manship. With proper care, this product should provide you with years of trouble-free operation. We want to take a couple of moments of your time to thank you for making the IC-M402A/M402SA your radio of choice, and hope you agree with Icom’s philosophy of “technology... -
Page 3: In Case Of Emergency
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 DISTRESS CALL PROCEDURE 1. “MAYDAY MAYDAY MAYDAY.” 2. “THIS IS ...” (name of vessel) 3. -
Page 4: Radio Operator Warning
RADIO OPERATOR WARNING Icom requires the radio operator to meet the FCC Requirements for Radio Frequency Expo- sure. An omnidirectional antenna with gain not greater than 9 dBi must be mounted a minimum W ARN ING of 5 meters (measured from the lowest point of the antenna) vertically above the main deck and all possible personnel. -
Page 5: Table Of Contents
I Transmitting DSC calls…………… 18 I Receiving DSC calls ……………… 25 7 INTERCOM OPERATION ……………………… 29 (IC-M402A Only) I Intercom operation ……………… 29 8 SET MODE ……………………… 30–32 I SET mode programming ………… 30 I SET mode items ………………… 31 9 CONNECTIONS AND MAINTENANCE …………………... -
Page 6: Precaution
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 DC or use reverse polarity. -
Page 7: Operating Rules
D D 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. •... -
Page 8: Panel Description
PANEL DESCRIPTION I Front panel Speaker Function display q DISTRESS KEY [DISTRESS] Transmits Distress call when pushed for 5 sec. (p. 17) w POWER/VOLUME CONTROL [VOL] Turns power ON and OFF and adjusts the audio level. (p. 8) e SQUELCH CONTROL [SQL] Sets the squelch threshold level. - Page 9 • International, U.S.A. and Canadian channels are available. i DSC/INTERCOM KEY [DSC• ➥ Selects the DSC menu when pushed. (p. 14) ➥ Activates an optional intercom function when pushed for 1 sec. (p. 29, IC-M402A only) ➥ While pushing [SCAN ], push to show the current •TAG position from a GPS receiver.
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Page 10: I Function Display
PANEL DESCRIPTION I Function display q CHANNEL NUMBER READOUT ➥ Indicates the selected operating channel number. • “ ” appears when a simplex channel is selected. “ ” appears when a receive only channel for a Canadian channel group is selected. (p. 7) ➥... -
Page 11: I Microphone
!1 CHANNEL COMMENT INDICATOR ➥ Channel comment appears if programmed. (p. 10) ➥ “ ” scrolls when the battery voltage drops to approx. 10 V DC or below. ➥ “ ” blinks during Dualwatch; “ watch. (p. 11) !2 CHANNEL GROUP INDICATOR (p. 7) Indicates whether a U.S.A. -
Page 12: Basic Operation
BASIC OPERATION I Channel selection ï ï 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 moni- tor Channel 16. - Page 13 Canadian channel group is selected. Push ï ï Weather channels The IC-M402A/M402SA has 10 weather channels. These are used for monitoring broadcasts from NOAA (National Oceanographic and Atmospheric Administration.) The transceiver can detect a weather alert tone on the se- lected weather channel while receiving the channel, during ] again.
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Page 14: I Receiving And Transmitting
BASIC OPERATION I Receiving and transmitting CAUTION: Transmitting without an antenna may dam- age the transceiver. q Rotate [VOL] 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. ➥... -
Page 15: I Call Channel Programming
I Call channel programming Call channel is used to select Channel 9 (default), however, you can program the call channel with your most often-used channels in each channel group for quick recall. q Push both [Y] and [Z] on the transceiver one or more times to select the desired channel group (U.S.A., In- ternational or Canada) to be... -
Page 16: I Channel Comments
BASIC OPERATION I Channel comments Memory channels can be labeled with alphanumeric com- ments of up to 10 characters each for easy channel recogni- tion. More than 6 characters comment scrolls automatically at the channel comment indicator after the channel selection. Capital letters, small letters (except f, j, p, s, y, x, z), 0 to 9, some symbols (= ✱... -
Page 17: Dualwatch/Tri-Watch
I Description Dualwatch monitors Channel 16 while you are receiving another channel; Tri-watch monitors Channel 16 and the call channel while receiving another channel. Dualwatch/Tri-watch are convenient for monitor Channel 16 when you are operat- ing on another channel. DUALWATCH/TRI-WATCH SIMULATION Dualwatch Tri-watch •... -
Page 18: Scan Operation
SCAN OPERATION I 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 turned ON, the previously selected (used) weather channel is also checked while scan- ning. -
Page 19: I Setting Tag Channels
I Setting tag channels For more efficient scanning, add desired channels as tag channels or clear the tag for unwanted channels. Channels are not tagged will be skipped during scanning. Tag channels can be assigned to each channel group (USA, INT, CAN) independently. -
Page 20: Dsc Operation
DSC OPERATION I MMSI code programming The 9-digit MMSI (Maritime Mobile Service Identity: 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 twice. -
Page 21: I Dsc Individual Id
I DSC individual ID A total of 30 DSC address IDs (9-digit) can be programmed and named with up to 5 characters. D Programming Address ID/Group ID q Push [DSC• ] to enter the DSC menu. w Push [Y] or [Z] to select “ ,”... -
Page 22: I Position Indication
DSC OPERATION D Deleting Address ID/Group ID q Push [DSC• ] to enter the DSC menu. w Push [Y] or [Z] to select “ e Push [Y] or [Z] to select “ • When no address ID is programmed, “ r Push [Y] or [Z] to select the desired ID name for deleting and push [DSC•... -
Page 23: I Distress Call
I 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 OR A PERSON IS NOT IN AN EMERGENCY. A DISTRESS CALL CAN BE USED ONLY WHEN IMMEDIATE HELP IS NEEDED. -
Page 24: I Transmitting Dsc Calls
DSC OPERATION I Transmitting DSC calls D Transmitting Individual call The Individual call function allows you to transmit a DSC sig- nal to a specific ship only. q Push [DSC• ] to enter the DSC menu. • “ ” scrolls at the channel comment indicator. w Push [DSC•... - Page 25 t After transmitting the Individual call, stands by on Channel 70 until an acknowledgement is received. • “ ” scrolls at the channel comment indicator. Scrolls y When the acknowledgement (‘able to comply’) is received, the specified channel (in step e) is selected with beeps automatically.
- Page 26 DSC OPERATION r Push [DSC• ] to enter selected Individual call acknowl- edgement. • “ ” appears at the channel comment indicator. t Push [DSC• ] to transmit the acknowledgement to the se- lected station. y After the Individual acknowledgement has been transmit- ted, the display changes to the channel specified by the calling station automatically when “...
- Page 27 r Push [Y] or [Z] to specify the desired intership channel, and push [DSC• • Channel 70 is selected and “ ” appears. t Push [DSC• ] to transmit the Group call. • If Channel 70 is busy, the transceiver stands by until the channel becomes clear.
- Page 28 DSC OPERATION D 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 Push [DSC• ] to enter the DSC menu. w Push [Y] or [Z] to select “...
- Page 29 D Transmitting Position Request call Transmit a Position Request call when you want to know a specified ship’s current position, etc. q Push [DSC• ] to enter the DSC menu. w Push [Y] or [Z] to select “ [DSC• Scrolls e Push [Y] or [Z] to select the desired pre-programmed in- dividual address.
- Page 30 DSC OPERATION D Transmitting Position Report call Transmit a Position Report call when you want to announce your own position to a specific ship and to get an answer, etc. q Push [DSC• ] to enter the DSC menu. w Push [Y] or [Z] to select “ [DSC•...
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Page 31: I Receiving Dsc Calls
I Receiving DSC calls D Receiving a Distress call While monitoring Channel 70 and a Distress call is received: ➥ The emergency alarm sounds for 2 minutes. • Push any key to stop the alarm. ➥ “DSC” appears and “ ”... -
Page 32: Receiving An Individual Call
DSC OPERATION D Receiving an Individual call While monitoring Channel 70 and an Individual call is re- ceived: ➥ The emergency alarm or beeps sound depending on the received category. ➥ “DSC” appears and “ comment indicator. ➥ Push [DSC• ] to change to the channel specified by the calling station for voice communication;... -
Page 33: Receiving An All Ships Call
D Receiving an All Ships call While monitoring Channel 70 and an All Ships call is received: ➥ The emergency alarm sounds when the category is ‘Dis- tress’ or ‘Urgency’; 2 beeps sound for other categories. ➥ “DSC” appears and “ ”... - Page 34 DSC OPERATION D Receiving a Position Request call While monitoring Channel 70 and a Position Request call is received: ➥ “DSC” appears and “ nel comment indicator. ➥ Push [DSC• ] to reply to the Position Request call; push any other key to ignore the Position Request call. D Receiving a Position Request Reply call While monitoring Channel 70 and a Position Request Reply call is received:...
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Page 35: (Ic-M402A Only)
• appears on the caller or listener function dis- play, respectively. • To adjust the IC-M402A’s speaker output level, rotate [VOL]. • To adjust the HM-127’s speaker output level, push [Y] or [Z] after pushing [VOL] on the HM-127. REMOTE... -
Page 36: Set Mode
SET MODE I Set mode programming Set mode is used to change the conditions of the trans- ceiver’s functions: Scan type (Normal or Priority,) Scan re- sume timer, Weather alert, Dual/Tri-watch, DSC watch, Beep tone (transceiver,) LCD contrast and Auto ACK. Available functions may differ depending on dealer setting. -
Page 37: I Set Mode Items
I SET mode items D Scan type The transceiver has 2 scan types: 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. Normal scan (default) D D Scan resume timer The scan resume timer can be selected as a pause (OFF) or... - Page 38 SET MODE D D 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.
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Page 39: Maintenance
CONNECTIONS AND MAINTENANCE I Supplied accessories The following accessories are supplied: q Mounting bracket ………………………………………… 1 w DC power cable (OPC-891) ……………………………… 1 e Microphone hanger ……………………………………… 1 r Knob bolts for mounting bracket ………………………… 2 × 20) t Screws for mounting bracket (5 y Mic hanger screws (3 ×... -
Page 40: I Connections
I Connections q DC POWER CONNECTOR Connects the supplied DC power cable from this connector to an external 12 V battery. w EXTERNAL MICROPHONE JACK (IC-M402A only) Connects to optional HM-127 PHONE e ANTENNA CONNECTOR Connects a marine VHF antenna with a PL-259 connector to the transceiver. -
Page 41: I Mounting The Transceiver
I Mounting the transceiver D D 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 (5 × 20) to a surface which is more than 10 mm thick and can support more than 5 kg. -
Page 42: I Optional Mb-69 Installation
Tighten the locking nuts (rotate counterclockwise) so that the transceiver is securely mounted in position as below. y Connect the antenna and power cable, then return the in- strument control panel to its original place. IC-M402A... -
Page 43: Troubleshooting
PROBLEM POSSIBLE CAUSE The transceiver does • Bad connection to the power supply. not turn ON. No sound from speaker. • Squelch level is too high. • Volume level is too low. • Speaker has been exposed to water. Transmitting is impossi- •... -
Page 44: Commandmic
COMMANDMIC I Panel description The optional HM-127 remotely controls the IC-M402A and provides an optional Intercom function. D D Front and side keys ® HM-127 q PTT SWITCH [PTT] (pgs. 8, 43) Push and hold to transmit; release to receive. - Page 45 [LO/DX• ➥ Activates the Intercom function when pushed for 1 sec. (pgs. 29, 48) ➥ Calls the IC-M402A when pushed and held while in In- tercom mode. (pgs. 29, 48) NOTE: RF attenuator and voice scrambler are not avail- able for IC-M402A.
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Page 46: I Function Display
SCAN q POWER KEY [PWR] (pgs. 8, 43) Push for 2 sec. to turn the HM-127 power ON or OFF when the IC-M402A power is turned ON. w SCAN KEY [SCAN• ] (pgs. 13, 46) ➥ Starts and stops Normal or Priority scan when tag chan- nels are programmed. - Page 47 r VOLUME INDICATOR (p. 43) Appears while audio output level is adjusted. t SQUELCH INDICATOR (p. 43) Appears while noise squelch level is adjusted. y CHANNEL COMMENT INDICATOR ➥ Channel comment appears (and scrolls) if programmed. (pgs. 10, 48) ➥ In Set mode, indicates or scrolls the selected Set mode item.
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Page 48: I Channel Selection
® COMMANDMIC HM-127 I Channel selection D D 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 Y ] or [Z Z ] to se- lect an operating channel. -
Page 49: I Receiving And Transmitting
I Receiving and transmitting q Push [PWR] for 2 sec. to turn power ON. w Push [VOL], then [Y Y ]/[Z Z ] to adjust audio output level. • Push [SQL], then push [Y Y ]/[Z Z ] to mute any audio noise, if nec- essary. -
Page 50: I Call Channel Programming
® COMMANDMIC HM-127 I Call channel programming q Push [CH/WX• ] several U/I/C times while pushing [H/L] to select the desired channel group (USA, INT, CAN) to be programmed. w Push [16• ] for 1 sec. to select call channel of the selected channel group. -
Page 51: I Display Backlighting
I Display backlighting The function display and keys can be backlit for better visibil- ity under low light conditions. The backlighting condition can also be adjusted independently from the transceiver. q Push [VOL• ] for 1 sec. to enter Backlight adjusting mode. •... -
Page 52: I Setting Tag Channels
® COMMANDMIC HM-127 I Setting tag channels q While pushing [H/L], push [CH/WX• times to select the channel group (USA, INT, CAN), if de- sired. w Push [Y Y ] or [Z Z ] to select the desired channel to set as a tag channel. -
Page 53: I Set Mode Programming
I 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, DSC watch, transceiver’s beep tone, LCD contrast (transceiver) and automatic acknowl- edgement. -
Page 54: I Intercom Operation
® COMMANDMIC HM-127 I Intercom operation q Push [LO/DX• ] for 1 sec. to activate the Intercom function. • “IC” appears in the priority channel readout. • The channel comment disappears. w Push [PTT] to talk. • “ ” appears at the channel comment indicator. -
Page 55: I Hm-127 Supplied Accessories
® COMMANDMIC HM-127 I HM-127 supplied accessories Accessories included with the HM-127: Qty. q Connection cable (OPC-1000: 6 m; 20 ft) ... 1 w Mounting base ... 1 e Microphone hanger ... 1 r Screws (M3 × 16; tapping) ... 5... -
Page 56: I Installation
® COMMANDMIC HM-127 I 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. - Page 57 ® COMMANDMIC HM-127 Mounting base 5 mm; ⁄ ˝ 2 mm; ⁄ ˝ Gasket...
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Page 58: Channel List
CHANNEL LIST Channel number Frequency (MHz) CAN Transmit Receive 156.050 160.650 156.050 156.050 156.100 160.700 156.150 160.750 156.150 156.150 156.200 160.800 04A 156.200 156.200 156.250 160.850 05A 156.250 156.250 156.300 156.300 156.350 160.950 07A 156.350 156.350 156.400 156.400 156.450 156.450 156.500 156.500 156.550 156.550 156.600 156.600... -
Page 59: Specifications
I Specifications D D 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 Max. audio 1.5 A max. •... -
Page 60: I Dimensions
SPECIFICATIONS I Dimensions 137 (5 13 32 153 (6 1 32 32.1 (1 86.5 (3 13 32 Unit: mm (inch) -
Page 61: Template
153 (6 1 32 139 (5 15 32 HM-127 24 to 27 (d) 15 16 to 1 1 16 TEMPLATE 3 32 MB-69 Unit: mm (inch) -
Page 63: Options
Black and white colours are available. • OPC-999* MICROPHONE EXTENSION CABLE 6 m (20 feet) microphone extension cable for optional HM- 127. Up to 2 OPC-999 can be connected. (18 m; 60 feet max- imum) *IC-M402A only OPTIONS... - Page 64 A-6322H-1US Printed in Japan 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan 2003 Icom Inc. ©...
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