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Icom IC-M402, Instruction Manual

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FOREWORD

Thank you for purchasing this Icom product. The 
IC-M402/M402S VHF MARINE TRANSCEIVERs are de-
signed and built with Icom’s superior 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 your IC-M402/M402S your radio of choice,
and hope you agree with Icom’s philosophy of “technology
first.” Many hours of research and development went into the
design of your IC-M402/M402S.

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FEATURES

❍

large 2-digit Ch with scrolling channel names

❍

Easy to hear speaker

❍

Built-in DSC capability that meets RTCM SC101

❍

Rugged waterproof construction

❍

Optional COMMANDMIC

TM

(IC-M402 only)

WARNING.

WARNING 
STICKER

NOTE

A WARNING STICKER

is supplied with the transceiver.

To comply with FCC regulations, this sticker must be affixed in
such a location as to be readily seen from the operating con-
trols of the radio like as follows. Make sure the chosen loca-
tion is clean and dry before applying the sticker. (p. 22)

EXAMPLE

00_IC-M402_S.qxd  02.2.21 0:06 PM  Page c (1,1)

Summary of Contents for IC-M402

Page 1: ...IC M402 ...

Page 2: ...lied with the transceiver To comply with FCC regulations this sticker must be affixed in such a location as to be readily seen from the operating con trols of the radio like as follows Make sure the chosen loca tion is clean and dry before applying the sticker p 22 EXAMPLE ...

Page 3: ...ication of the vessel AND 9 digit DSC ID if you have one 4 LOCATED AT your position 5 The nature of the distress and assistance required 6 Any other information which might facilitate the rescue USING DIGITAL SELECTIVE CALLING Ch 70 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 acknowl...

Page 4: ... children BE CAREFUL The transceiver and optional HM 127 employ waterproof construction which corresponds to JIS waterproof specification grade 7 1 m 30 min However once the transceiver or microphone has been dropped water proofing cannot be guaranteed due to the fact that the case may be cracked or the waterproof seal damaged etc IC M402 only Icom Icom Inc and the logo are registered trademarks o...

Page 5: ... OPERATOR TO ENSURE THAT THE MAXIMUM PERMISSIBLE EXPO SURE LIMITS ARE OBSERVED AT ALL TIMES DURING RADIO TRANSMISSION THE RADIO OPERATOR IS TO ENSURE THAT NO BYSTANDERS COME WITHIN THE RADIUS OF THE MAXIMUM PERMISSIBLE EXPOSURE LIMITS Determining MPE Radius THE MAXIMUM PERMISSIBLE EXPOSURE MPE RA DIUS HAS BEEN ESTIMATED TO BE A RADIUS OF ABOUT 3M PER OET BULLETIN 65 OF THE FCC THIS ESTIMATE IS MAD...

Page 6: ... ription 26 splay 28 and transmitting 29 ons 30 lection 31 klighting 32 Monitor function 32 Call channel programming 32 Starting a scan 33 Setting tag channels 33 Dualwatch Tri watch operation 33 Set mode programming 34 Intercom operation 34 Channel names 35 HM 127 supplied accessories 35 Installation 36 37 11 TROUBLESHOOTING 38 12 CHANNEL LIST 39 13 SPECIFICATIONS 40 41 Specifications 40 Dimensio...

Page 7: ...call and makes the necessary log entries Keep a copy of the current government rules and regulations handy Radio license for boaters U S A only The Telecommunications Act of 1996 permits recreational boaters to have and use a VHF marine radio EPIRB and marine radar without having an FCC ship station license Boaters travelling on international voyages having an HF single sideband radiotelephone or ...

Page 8: ... programming condition p 7 While turning power ON push 16 9 to enter set mode p 20 u CHANNEL UP DOWN SWITCHES Y Y Z Z SCAN Push to select the operating channels set mode con tents etc p 6 While push and hold H L push Y Z to adjust the brightness of the LCD and switch backlight Push for 3 sec to enter call channel programming con dition when call channel is selected p 7 Push Y or Z for 1sec to star...

Page 9: ...when no GPS receiver is connected o DSC INDICATOR Indicates the DSC status 0 CHANNEL NAME INDICATOR Channel comment appears if programmed p 7 LOW BATTERY scrolls when the battery voltage drops to approx 10 V DC or below DW appears during dualwatch TW appears during tri watch p 8 1 CHANNEL NUMBER READOUT Indicates the selected operating channel number A appears when a simplex channel is selected p ...

Page 10: ...n the supplied microphone turn power ON to toggle the microphone lock function ON and OFF p 6 NOTE The optional HM 127 REMOTE CONTROL MICROPHONE and OPC 999 MICROPHONE EXTENSION CABLE can be connected to IC M402 only p 19 Intercom operation p 26 37 HM 127 REMOTE CONTROL MICROPHONE IC M402S has no external microphone speaker jack for connecting HM 127 and OPC 999 ...

Page 11: ...ng area q Push CH WX to select a regular channel If a weather channel appears push CH WX again w Push CH WX while pushing H L to change the channel group if necessary U S A International INT and Canadian channels can be se lected in sequence e Rotate the channel selector to select a channel D appears for duplex channels A appears for simplex channels Push U S A channels International channels Cana...

Page 12: ... speaker r Push H L to select the output power if necessary LOW appears when low power is selected Choose high power for stronger signal propagation Some channels are for low power only t Push and hold PTT to transmit then speak into the mi crophone TX appears Channel 70 cannot be used for transmission for DSC use Simplex channels 3 21 23 61 64 81 82 and 83 CAN NOT be lawfully used by the general ...

Page 13: ... q Select the desired memory channel Cancel dualwatch tri watch or scan in advance w While pushing H L push 16 to edit memory channel name A cursor appears and blinks e Select the desired character by pushing Y Z Push CH WX or H L for cursor movement r Push 16 to input and set the name Push H L to cancel The cursor disappears t Repeat steps q to r to program other memory channel names if desired ...

Page 14: ...SIC OPERATION 8 er e s h h h Dual watch starts Signal received on channel 16 takes priority Dual watch resumes after the signal disappears Tri watch starts Signal is received on call channel Signal received on channel 16 takes priority Tri watch resumes after the signal disappears ...

Page 15: ... scan Pri scan 16 or Normal scan appears in the function display When a signal is detected scan pauses until the signal disap pears or resumes after pausing 5 sec according to set mode set ting Channel 16 is still monitored during priority scan While in the scanning use Y and Z key to check tag channels change the scanning direction or resume the scan manually 16 flashes and a beep tone sounds whe...

Page 16: ...iently stop scanning such as digital communication use Choose priority or normal scan in set mode p 20 NORMAL SCAN Normal scan like priority scan searches through all tag channels in sequence However unlike priority scan Ch 16 is not checked unless Ch 16 is set as a tag channel CH 01 CH 02 CH 06 CH 05 CH 04 CH 03 ...

Page 17: ...DSC to exit the condition Position indication When a GPS receiver NMEA0183 ver 2 0 is connected the transceiver can display the current position and time While pushing H L push DSC for 1 sec to display the current position Latitude and longitude are displayed alternately ...

Page 18: ...gnated distress Position data Latest GPS position data held for 23 5 hrs or until the power is turned OFF The distress call is repeated every 3 5 4 5 min until re ceiving an acknowledgement Push DISTRESS to transmit a renewed distress call if desired Push 16 to cancel the Call repeat mode ...

Page 19: ...until an acknowl edgement is received WAITING ACK scrolls i When the acknowledgement is re ceived the display changes to the previously selected user channel with beeps o Push and hold PTT to communicate your message to the responding party y ...

Page 20: ... than Ch 70 w Push DSC to select the DSC menu e Push Y Z to select ALL SHIPS Routine category only is available r Push DSC to enter all ships call OK appears t Push DSC to transmit the all ships call Ch 70 is selected and the all ships call is transmitted Routine category only is available y The all ships call has been transmit ted A previous channel is selected automati cally u Push PTT or Y Z to...

Page 21: ...reply call Transmit a position reply call when a position request call is received q DSC appears and a RCV Pos re quest scrolls in the display w Push DSC to reply to the position request call push H L to ignore the position request call ...

Page 22: ... to select ADDRESS and push DSC e Push Y Z to select DEL then push DSC When no address ID is programmed the transceiver exits the condition automati cally r Select the desired ID name pushing Y Z then push DSC t Push DSC to delete the address ID push an other switch to exit the con dition ...

Page 23: ...lay then Channel 16 is automati cally selected Monitor Channel 16 until the emergency communication has been completed ï ïReceiving an all ships call While monitoring Ch 70 and an all ships call is received Emergency alarm sounds when the category is Distress or Urgency 2 beeps sound for other categories RCV All ships scrolls in the display then the channel specified by the call ing station is aut...

Page 24: ...r if there is a prob lem with the connected receiver all geographical area calls are received regardless of your position ï ïReceiving a position request call While monitoring Ch 70 and a position request call for the area you are in is received RCV Pos request scrolls in the dis play Push DSC to reply to the call When no GPS receiver is connected or if there is a prob lem with the connected recei...

Page 25: ...g pushing 16 selects Ch 16 While in the intercom mode the transceiver functions transmit and receive are interrupted If the transceiver is in transmit condition the intercom function is not avail able When a DSC call is received DSC received appears and the last received DSC message is displayed after the intercom use is finished When a WX alert is received WX ALT flashes and a beep sounds The WX ...

Page 26: ...d on channels except for Channel 16 ï ïWeather alert An NOAA broadcast sta tion transmits a weather alert tone before important weather information When the weather alert function is turned ON the transceiver detects the alert then flashes the WX ALT indicator until the trans ceiver is operated The previously selected used weather channel is checked any time during standby or while scanning ALT ap...

Page 27: ...ignal DSC annel ï ïLCD contrast This item adjusts the contrast of the LCD in 4 steps h OFF FF LCD contrast 3 default ...

Page 28: ...nna A key element in the performance of any communication sys tem is an antenna Ask your dealer about antennas and the best places to mount them Fuse replacement One fuse is installed in the supplied DC power cable If a fuse blows or the transceiver stops functioning track down the source of the problem if possible and replace the damaged fuse with a new rated one Cleaning If the transceiver becom...

Page 29: ...S receiver t EXTERNAL SPEAKER JACK Connects to an external speaker See Options on p 29 for available external speakers MICROPHONE HANGER Rest the supplied microphone on the hanger when not in use CAUTION After connecting the DC power cable GPS receiver jack and external speaker jack cover the connec tor and jacks with an adhesion tape as shown below to prevent water seeping into the transceiver r ...

Page 30: ...24 9 INSTALLATION AND MAINTENANCE er s d at at n y EXAMPLE ...

Page 31: ...er body r Tighten the end bolts on the clamps rotate clockwise so that the clamps press firmly against the inside of the in strument control panel t Tighten the locking nuts rotate counterclockwise so that the transceiver is securely mounted in position as below y Connect the antenna and control cable then return the in strument control panel to its original place IC M402 ...

Page 32: ...L or SQL is pushed respectively pgs 20 29 In set mode changes setting of the selected item pgs 20 34 Checks tag channels or changes scanning direction dur ing scan pgs 9 33 r CHANNEL 16 CALL CHANNEL SWITCH 16 9 Selects Ch 16 when pushed pgs 5 31 Selects call channel when pushed for 1 sec pgs 3 31 CALL appears when call channel is selected Push for 3 sec to enter call channel programming con dition...

Page 33: ...g condition pgs 7 35 o TRANSMIT POWER SWITCH H L Toggles high and low power when pushed pgs 6 29 Some channels are set to low power only While pushing this switch other switches perform sec ondary functions Toggles the all key lock function ON or OFF when pushed while turning power ON p 30 T flashes while the all key lock function is in use Only PWR and PTT function when the all key lock function ...

Page 34: ...e selected set mode item pgs 20 34 u BUSY INDICATOR pgs 6 29 Appears when receiving a signal or when the squelch opens i TRANSMIT INDICATOR pgs 6 30 Appears while transmitting o SCAN INDICATOR pgs 9 33 SCAN appears during normal scan P SCAN appears during priority scan 0 PRIORITY CHANNEL INDICATOR Indicates a priority channel number during priority scan or dual tri watch p 8 IC appears during inte...

Page 35: ...udio is emitted from the speaker Further adjustment of audio level may be necessary at this point r Push H L to select the output power if necessary LOW appears when low power is selected Choose low power for shorter high power for longer distance communications Some channels are low power only w Set volume w Set squelch if required r Set output power t Speak into microphone q Turn power ON e Set ...

Page 36: ...eiver are functional ï ïMicrophone key lock function Push SQL while pushing H L to turn the lock function ON and OFF appears Only PWR PTT H L SQL MONI VOL Y Z and SQL Y Z are func tional ï ïAll key lock function Turn the power ON by pushing PWR while pushing H L to turn the all key lock function ON and OFF flashes Only PWR and PTT are func tional Appears when the micro phone lock function is in us...

Page 37: ...X to select regular channel Push CH WX again if weather channel appears w Push CH WX again if weather channel appears U S A International and Canadian channels can be selected in sequence Push while pushing U S A channels Canadian channels International channels ...

Page 38: ...lect the call channel of the selected chan nel group CALL and call channel number ap pear e Push 16 9 again for 3 sec until long beep changes to 2 short beeps to enter call channel pro gramming condition Call channel number and channel group to be programmed flashes r Push Y Z to select the desired channel t Push 16 9 to program the dis played channel as the call channel The call channel number an...

Page 39: ...oup 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 to start dualwatch or tri watch DUAL appears during dualwatch TRI appears during tri watch Beep tone sounds when a signal is received on Channel 16 Tri watch becomes dualwatch when receiving a signal...

Page 40: ...nel name indicator when the trans ceiver is in talking mode r Push LO DX IC to cancel the intercom function Pushing 16 SCN TAG or CH WX is also cancels the inter com function For your reference In case the intercom mode is selected with the transceiver during microphone power OFF the microphone power is au tomatically turned ON and the intercom mode is selected ï ïIntercom beep function Push LO DX...

Page 41: ...7 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 q w e r select shes ect a cted r 3 D N X h ...

Page 42: ...cket follow the fol lowing 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 y The installation is finished when it is completed Gasket Cap Mounting base Nut ...

Page 43: ...HONE Cap ut ...

Page 44: ...ch to the threshold point Set VOL to a suitable level Drain water from the speaker Change channels Push H L to select high power Set the desired channels as TAG channels Turn the beep tone ON in set mode Set squelch to the threshold point Program the MMSI DSC self ID code p 22 p 6 p 6 p 5 27 p 6 p 10 p 21 p 6 p 11 ...

Page 45: ... 81A 157 075 157 075 157 125 161 725 82A 82A 157 125 157 125 INT 65A 66 67 68 69 70 3 71 72 73 74 77 78 79 80 81 82 156 325 156 325 66A Channel number 84A Frequency MHz USA CAN Transmit Receive 83A 83A 157 175 157 175 84 84 157 225 161 825 85 85 157 275 161 875 85A 157 275 157 275 86 86 157 325 161 925 86A 157 325 157 325 87 87 157 375 161 975 87A 157 375 157 375 88 88 157 425 162 025 88A 157 425 ...

Page 46: ...elch sensitivity 0 20µV typical Intermodulation rejection ratio 70 dB Spurious response rejection ratio 70 dB Adjacent channel selectivity 70 dB Audio output power 4 5W typical at 10 distortion with a 4 Ω load GPS interface NMEA0183 ver 2 0 All stated specifications are subject to change without notice or obligation ...

Page 47: ......

Page 48: ...42 14 MB 69 HM 127 TEMPLATE Unit mm inch MB 69 ...

Page 49: ...44 15 OPTION r t M x ...

Page 50: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan ...

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