Icom IC-M421 Instruction Manual Download Page 1

Page: 1 / 64

INSTRUCTION MANUAL

New2001

iM421

VHF MARINE TRANSCEIVER

!IC-M421-3.qxd 06.5.26 1:43 PM Page A (1,1)

Summary of Contents for IC-M421

Page 1: ......

Page 2: ...1 EXPLICIT DEFINITIONS WORD DEFINITION RWARNING CAUTION NOTE Personal injury fire hazard or electric shock may occur If disregarded inconvenience only No risk of personal injury fire or electric shock Equipment damage may occur cor nce CLEAN THE TRANSCEIVER AND MICROPHONE THOR OUGHLY WITH FRESH WATER after exposure to water including salt water otherwise the keys and switches may become inoperable...

Page 3: ...ble height then the transmitter should neither be continuously operated for long periods if any person is within 5 meters of the antenna nor operated at all if any person is touching the antenna In all cases any possible risk depends on the transmitter being activated for long periods actual recommendation lim its are specified as an average of 6 minutes Normally the transmitter is not active for ...

Page 4: ... have the correct version of this radio or the correct programming of this radio to comply with national licensing requirement DECLARATION OF CONFORMITY RANSCEIVER y with the following harmonised 04 09 04 09 000 08 001 05 21 Signature s equipment complies with the Telecommunications Terminal at any applicable Essential Test ed 0560 Authorized representative name Place and date of issue 8th Mar 200...

Page 5: ...smitting DSC calls 25 Receiving DSC calls 37 Received messages 41 DSC Set mode 43 7 SET MODE 45 46 Set mode programming 45 Set mode items 45 8 CONNECTIONS AND MAINTENANCE 47 50 Supplied accessories 47 Antenna 47 Fuse replacement 47 Cleaning 47 Connections 48 Mounting the transceiver 49 Optional MB 69 installation 50 9 TROUBLESHOOTING 51 10 CHANNEL LIST 52 53 11 SPECIFICATIONS AND OPTION 54 Specifi...

Page 6: ...ng continuously for long periods Place the transceiver in a secure place to avoid inadvertent use by children BE CAREFUL The transceiver and HM 150 employs wa terproof construction which corresponds to JIS waterproof specification Grade 7 1 m 30 min However once the transceiver or microphone has been dropped waterproofing cannot be guaranteed due to the fact that the case may be cracked or the wat...

Page 7: ...dio is not required for safety purposes The Restricted Radiotelephone Operator Permit must be posted or kept with the operator Only a licensed radio opera tor may operate a transceiver However non licensed individuals may talk over a transceiver if a licensed operator starts supervises ends the call and makes the necessary log entries Keep a copy of the current government rules and regulations han...

Page 8: ... e y t r e DISTRESS KEY DISTRESS p 22 Transmits a distress call when pushed for 5 sec r ENTER KEY ENT Sets the DSC menu a channel comment etc when pushed t CLEAR KEY CLR Cancels the entered function and exits the condition when pushed ...

Page 9: ...CHANNEL DUALWATCH TRI WATCH KEY CH DUAL Push to select the regular channel pgs 6 7 Push for 1 sec to start dualwatch or tri watch p 11 Push to stop dualwatch or tri watch when either is acti vated p 11 0 DSC MENU KEY MENU p 14 Toggles the DSC menu ON or OFF when pushed ...

Page 10: ...13 DUAL 16 appears during dualwatch TRI 16 ap pears during tri watch p 11 i POSITION INDICATOR Shows the GPS position data may blink every 2 sec instead of position data when the GPS position data is invalid In such a case the last position data is held for up to 23 5 hours may blink every 2 sec instead of position data 4 hours after the position data is input manually up until 23 5 hours have pas...

Page 11: ...L UP DOWN KEYS J J K K Push either key to change the operating memory channel set mode settings etc pgs 6 45 e TRANSMIT POWER KEY HI LO Toggles power high and lower when pushed p 8 Some channels are set to low power only While pushing HI LO turn power ON to toggle the mi crophone lock function ON and OFF p 10 Microphone w q e ...

Page 12: ...ed channels in each channel group for quick recall Push 16 C for 1 sec to select the call channel of the se lected channel group The call channel number appears Each channel group may have an independent call channel after programming a call channel Push CH DUAL to return to the condition before selecting the call channel or push or to select an operating channel Push for 1 sec INT 25W TAG 23 34 1...

Page 13: ... 3 BASIC OPERATION 3 s NT nnel the nce Push both and U S A channel International channel INT 25W DUP TAG 23 34 154N 135 34 351E TELEPHON UTC 12 00 USA 25W TAG 23 34 154N 135 34 351E CCG UTC 12 00 Scrolls ...

Page 14: ... level NOTE for TOT Time out Timer function The TOT function inhibits continuous transmission over a pre set time period after the transmission starts A beep sounds 10 sec before the TOT function activates to indicate the transmission will be shut down and TOT ap pears on the channel comment indicator Transmission is not possible for 10 sec after this transmission shut down u w r e M q y r t M Mic...

Page 15: ...n cel The channel number and CALL WRITE stop blinking G G N N E E 0 0 INT INT 25W 25W TAG TAG CALL CALL WRITE WRITE 23 23 34 154N 34 154N 135 135 34 351E 34 351E INTL INTL UTC UTC 12 00 12 00 CALL CALL WRITE WRITE G G N N E E 0 0 G G N N E E 0 0 INT INT 25W 25W DUP DUP TAG TAG 23 23 34 154N 34 154N 135 135 34 351E 34 351E INTL INTL UTC UTC 12 00 12 00 ...

Page 16: ...es and function access While pushing HI LO on the microphone turn power ON to toggle the lock function ON and OFF Display backlighting The function display and keys can be backlit for better visibil ity under low light conditions While pushing SCAN TAG push Y or Z to adjust the brightness of the LCD and key backlight The backlight is selectable in 3 levels and OFF HI LO J K ...

Page 17: ...W 25W DUP DUP TAG TAG TRI TRI 16 16 23 34 154N 34 154N 135 135 34 351E 34 351E TELEPHON TELEPHON UTC UTC 12 00 12 00 BUSY BUSY INT 25W 25W TAG TRI TRI 16 16 23 34 154N 34 154N 135 135 34 351E 34 351E INTL INTL UTC UTC 12 00 12 00 INT INT 25W 25W DUP DUP TAG TAG TRI TRI 16 16 23 34 154N 34 154N 135 135 34 351E 34 351E TELEPHON TELEPHON UTC UTC 12 00 12 00 INT INT 25W 25W DUP DUP TAG TAG TRI TRI 16 ...

Page 18: ...igital communication use Refer to right page for details Choose priority or normal scan in set mode p 45 NORMAL SCAN Normal scan like priority scan searches through all tag channels in sequence However unlike priority scan Chan nel 16 is not checked unless Channel 16 is set as a tag channel CH 01 CH 02 CH 06 CH 05 CH 04 CH 03 e e p an s ...

Page 19: ...the signal disap pears or resumes after pausing 5 sec according to set mode setting Channel 16 is still monitored during priority scan Push or to check the scanning tag channels to change the scanning direction or resume the scan manually A beep tone sounds and 16 blinks when a signal is received on Channel 16 during priority scan t To stop the scan push SCAN TAG U K version only INT INT 25W 25W D...

Page 20: ... to clear the MMSI code Push CLR to cancel and exit the condition to the set up menu i After input the 9 digit code push ENT to set the code Returns to the set up menu o Push CLR or to select Exit push ENT Returns to the DSC menu Repeat again to return to the normal operation condition DSC Menu MMSI Check Input 9 digits _________ CLR Exit ENT OK ...

Page 21: ...15 6 DSC OPERATION 6 T t Push CLR or to select Exit push ENT Returns to the DSC menu Repeat again to return to the normal operation condition ...

Page 22: ...CH DUAL or 16 C to move the cursor forward or back ward respectively Push SCAN TAG to clear the ID name Push CLR to cancel and exit the condition to the set up menu y Push ENT to program u Push CLR or to select Exit push ENT Returns to the DSC menu Repeat again to return to the normal operation condition DSC Menu Add Individual ID Input name __________ CLR Exit ENT OK DSC Menu Add Individual ID In...

Page 23: ...d ID name for delet ing t Push ENT to delete the address ID and returns to the set up menu y Push CLR or to select Exit push ENT Returns to the DSC menu Repeat again to return to the normal operation condition DSC Menu Select ID Bob John Cindy CLR Exit ENT OK ...

Page 24: ...ctively Push SCAN TAG to clear the ID name Push CLR to cancel and exit the condition to the set up menu y Push ENT to program u Push CLR or to select Exit push ENT Returns to the DSC menu Repeat again to return to the normal operation condition DSC Menu Add Group ID Input name __________ CLR Exit ENT OK DSC Menu Add Group ID Input 8 digits 0________ CLR Exit ENT OK ...

Page 25: ... ID name for delet ing t Push ENT to delete the group ID and returns to the set up menu y Push CLR or to select Exit push ENT Returns to the DSC menu Repeat again to return to the normal operation condition DSC Menu Select ID Office Icom Station A CLR Exit ENT OK ...

Page 26: ...or S South latitude when the cursor is on the N or S position and W West longi tude or E East longitude when the cursor is on the W or E po sition Push SCAN TAG to clear the latitude longitude data Push CLR to cancel and exit the condition to the DSC menu Set the latitude data Set the longitude data DSC Menu Input Position Longitude ___ __ ___W Null SCAN Null Data CLR Exit ENT OK DSC Menu Input Po...

Page 27: ...eiver displays the manually entered position and time A GPS receiver appropriate for the IC M421 is not supplied from Icom A GPS receiver with NMEA0183 ver 2 0 or 3 01 format is required for position indication Ask your dealer about suitable GPS receivers When connecting GPS receiver is compatible with several sentence formatters the order of input precedence is RMC GGA GNS and GLL INT 25W TAG 23 ...

Page 28: ...s automatically transmitted every 3 5 to 4 5 minutes After 2 sec the transceiver is set to Channel 16 automatically r After receiving the acknowledgment reply using the mi crophone INT 25W TAG RCV DTRS ACK Osaka Bay CLR CALLING Beep Off Distress Call TX Completed Now Waiting for ACK CLR Cancel INT 25W TAG Wait ACK CLR CALLING Cancel After 2 sec ...

Page 29: ...ct the nature of the distress push ENT Undesignated Explosion Flooding Collision Grounding Capsizing Sinking Adrift Disable adrift Abandoning Aban doning ship Piracy Piracy attack and MOB Man over board are available The selected nature of the distress is stored for 10 minutes DSC Menu Select Nature Undesignated Explosion Flooding CLR Exit ENT OK DSC Menu Select Item Position Report Polling Reques...

Page 30: ...ISTRESS for 5 sec to transmit the distress call While pushing DISTRESS the key backlighting is blinking u After transmitting the distress call the transceiver waits for an acknowledgment call on Ch 70 The distress call is automatically transmitted every 3 5 to 4 5 min After 2 sec the transceiver is set to Channel 16 automatically Distress Call TX Completed Now Waiting for ACK CLR Cancel INT 25W TA...

Page 31: ...ENU to enter the DSC menu w Push or to select Individual Call and push ENT e Push or to select the desired pre programmed in dividual address or Manual Input push ENT The ID code for the individual call can be set in advance p 16 When Manual Input is selected set the 9 digit ID code for the individual you wish to call with or 1st digit 0 is fixed for a group ID DSC Menu Select Address Manual Input...

Page 32: ...le to comply is received the display returns to the operated channel before enter the DSC menu with beeps i Push CLR to stop the beep then push and hold PTT to communicate your message to the responding ship INT 25W TAG RCV INDV ACK John CLR COMMERCI Beep Off Able to comply is received INT 25W TAG RCV Unable John CLR INTL Beep Off Unable to comply is received DSC Menu Individual Call TX Completed ...

Page 33: ...nsmit the acknowledgement call to the selected station y After the individual acknowledgement call has been trans mitted the specified channel specified by the calling sta tion is selected automatically when Able to Com ply is selected or returns to the previous condition before entering the DSC menu when Unable to Comply is selected in step r DSC Menu Select Action Able to Comply Unable to Comply...

Page 34: ...dication is displayed u Push CLR to exit the condition and selects the specified intership channel in step r automatically Even if CLR hasn t been pushed the transceiver selects the specified intership channel in step r automatically after 2 sec of inactivity DSC Menu Group Call TX Completed CLR Exit DSC Menu Select Intership CH 08 69 77 CLR Exit ENT OK DSC Menu Group Call Ready CLR Exit ENT OK Pu...

Page 35: ...d t After the all ships call has been transmitted the following indication is displayed y Push CLR to exit the condition and selects Channel 16 automatically Even if CLR hasn t been pushed the transceiver automatically selects Channel 16 after 2 sec of inactivity DSC Menu All Ships Call TX Completed CLR Exit DSC Menu All Ships Call Transmitting ...

Page 36: ...st call has been transmitted the fol lowing indication is displayed y Push CLR to return to the previous indication before en tering the DSC menu Even if CLR hasn t been pushed the display automatically re turns to the previous indication after 2 sec of inactivity DSC Menu Position Request TX Completed Now Waiting for ACK CLR Exit Transmitting DSC Menu Position Request ...

Page 37: ...e the cursor forward or back ward respectively Push or to edit N North latitude or S South latitude when the cursor is on the N or S position and W West longi tude or E East longitude when the cursor is on the W or E po sition Push SCAN TAG to clear the latitude longitude data Push CLR to cancel and exit the condition to the DSC menu Set the latitude data Set the longitude data DSC Menu Input Posi...

Page 38: ...ndication is displayed i Push CLR to return to the previous indication before en tering the DSC menu Even if CLR hasn t been pushed the display automatically re turns to the previous indication after 2 sec of inactivity DSC Menu Position Report TX Completed Now Waiting for ACK CLR Exit ...

Page 39: ...ling request call has been transmitted the fol lowing indication is displayed y Push CLR to return to the previous indication before en tering the DSC menu Even if CLR hasn t been pushed the display automatically re turns to the previous indication after 2 sec of inactivity DSC Menu Polling Request TX Completed Now Waiting for ACK CLR Exit Transmitting DSC Menu Polling Request ...

Page 40: ...orward or back ward respectively Push or to edit N North latitude or S South latitude when the cursor is on the N or S position and W West longi tude or E East longitude when the cursor is on the W or E po sition Push SCAN TAG to clear the latitude longitude data Push CLR to cancel and exit the condition to the DSC menu Set the latitude data Set the longitude data DSC Menu Input Position Longitude...

Page 41: ...port Reply and push ENT POS Report Reply item appears after a position report call is received e Push or to select the desired individual address or ID code push ENT r Push ENT to transmit the position report reply call to the selected station DSC Menu Select Address Paul 01 Beck 02 John 03 DSC Menu POS Reply Ready CLR Exit ENT OK Push DSC Menu Select Item All ships Call Position Request Position ...

Page 42: ...re ush call or r Push ENT to transmit the polling request call to the se lected station ...

Page 43: ...TRS ACK appears in the display then Channel 16 is automatically selected D D Receiving a distress relay call While monitoring Channel 70 and a distress relay acknowl edgement is received The emergency alarm sounds for 2 minutes Push CLR to stop the alarm RCV DTRS REL appears in the display then Channel 16 is automatically selected INT 25W TAG RCV DTRS REL Bob CLR CALLING Beep Off INT 25W TAG RCV D...

Page 44: ...ce com munication push CLR to ignore the group call D 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 beeps sound for 2 minutes RCV ALL SHIP appears in the display Push CLR to stop the beep then push ENT to monitor channel 16 for an announcement from the calling vessel push CLR to ignor...

Page 45: ... reply to the position request call push CLR to ignore the position request call D D Receiving a position report call While monitoring Channel 70 and a position report call is re ceived RCV POS RPT appears in the display Push CLR to stop the beep then push ENT to reply to the position report call push CLR to ignore the position report call INT 25W TAG RCV POS RPT Paul CLR SAFETY Beep Off INT 25W T...

Page 46: ...ile monitoring Channel 70 and a position report reply call is received RCV POS RPY appears in the display Push CLR to stop the beep then push ENT to display the position information push CLR to ignore the reply call INT 25W TAG RCV POS RPY Paul CLR SAFETY Beep Off ...

Page 47: ...ing have not read e Push or to scroll the message r Push CLR to exit the condition or push SCAN to delete the displayed message and returns to DSC menu DSC Menu Distress Beck Explosion LAT 12 34 567N LON 123 45 678W UTC 12 15 CLR Exit SCAN Del DSC Menu Select Message 12 15 Beck 01 09 10 John 02 CLR Exit ENT OK ...

Page 48: ...message has various information and depending on the type of distress call r Push CLR to exit the condition or push SCAN to delete the displayed message and returns to DSC menu DSC Menu Individual Call Bob Routine F3E simplex CH08 CLR Exit SCAN Del ...

Page 49: ...e data Push CLR to cancel and exit the condition to the set up menu t Push ENT to program and to exit the condition to the set up menu The local time indication is not available when the GPS re ceiver sentence formatter RMC is connected the trans ceiver s display indicates UTC time only DSC Menu Input Offset TIme __0 00 CLR Exit ENT OK DSC Menu Input Offset TIme 12 00 CLR Exit ENT OK No offset tim...

Page 50: ...l re ec r Push or to turn the automatic acknowledgement function ON or OFF t Push ENT to set the condition Push CLR to cancel and exit the condition to the set up menu DSC Menu Auto ACK ON OFF CLR Exit ENT OK ...

Page 51: ...in se quence while monitoring Channel 16 D D Scan resume timer The scan resume timer can be selected as a pause OFF or timer scan ON When OFF is selected the scan pauses until the signal disappears When ON is selected the scan pauses 5 sec and resumes even if a signal has been re ceived on any other channel than Channel 16 Set Mode Scan Timer ON OFF ENT OK Scan timer OFF default Set Mode Scan Type...

Page 52: ...dark Mid and Max bright D D LCD contrast This item adjusts the contrast of the LCD in 8 steps 1 is the lowest contrast and 8 is the highest contrast Set Mode Contrast 6 5 4 ENT OK LCD contrast level 4 default Set Mode Backlight Max Mid Min ENT OK LCD backlight level MAX default ...

Page 53: ...acement 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 becomes dusty or dirty wipe it clean with a soft dry cloth AVOID the use of solvents such as benzene or al cohol as they may damage transceiver surfaces Fuse r...

Page 54: ...eiver CAUTION Transmitting without an antenna may dam age the transceiver CAUTION After connecting the DC power cable GPS re ceiver jack and external speaker jack cover the connector and jacks with an adhesive tape as shown below to pre vent water seeping into the transceiver Rubber vulcanizing tape ...

Page 55: ...49 8 CONNECTIONS AND MAINTENANCE 8 iver ews and s at east om play Flat washer Spring washer Screw 5 20 mm EXAMPLE ...

Page 56: ...ody 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 power cable then return the in strument control panel to its original place ...

Page 57: ...he speaker supply p 48 Check the connection to the transceiver power or re pgs 6 7 52 53 p 8 Change channels Push HI LO on the microphone to select high power med Set the desired channels as TAG channels p 13 Turn the beep tone ON in Set mode Set squelch to the threshold point p 46 p 8 is not pro Program the MMSI DSC self ID code p 14 ...

Page 58: ...157 275 161 875 61 900 66 156 325 160 925 76 3 156 825 156 825 86 157 325 161 925 61 950 67 156 375 156 375 77 156 875 156 875 87 157 375 157 375 P4 2 161 425 161 425 88 157 425 157 425 62 000 68 69 156 425 156 425 78 156 925 161 525 57 850 156 475 156 475 79 156 975 161 575 60 625 70 156 525 156 525 80 157 025 161 625 61 425 MHz for U K version only munications provided the effective radiated pow...

Page 59: ...56 975 156 975 87 157 375 161 975 61 850 67 156 375 156 375 80A 157 025 157 025 87A 157 375 157 375 61 900 68 156 425 156 425 81A 157 075 157 075 88 P4 157 425 162 025 61 950 69 156 475 156 475 82A 157 125 157 125 88A 157 425 157 425 161 425 161 425 62 000 70 156 525 156 525 83A 157 175 157 175 57 850 71 156 575 156 575 84 157 225 161 825 56 075 72 156 625 156 625 84A 157 225 157 225 73 156 675 15...

Page 60: ...elch sensitivity Less than 0 dBµ emf Spurious response More than 70 dB Intermodulation More than 68 dB Adjacent channel selectivity More than 70 dB Hum and noise More than 40 dB Audio output power More than 2 W All stated specifications are subject to change without notice or obligation Option MB 69 FLUSH MOUNT p 50 For mounting the transceiver to a panel ...

Page 61: ...55 12 TEMPLATE 11 12 Unit mm 164 78 149 61 6 ...

Page 62: ......

Page 63: ...57 28 3 14 2 111 2 60 6 Unit mm ...

Page 64: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan ...

Search results

Summary of Contents for IC-M421

Reviews:

Related manuals for IC-M421

Brands by name

Popular brands

Icom IC-M421, Instruction Manual

Search results

Summary of Contents for IC-M421

Reviews:

Related manuals for IC-M421

Brands by name

Popular brands