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Icom IC-M423 Instruction Manual Download Page 56

46

7

DSC OPERATION

■

  Making DSC calls

 

D

Making a Test call (continued)

 

r

Push [CALL] to make a Test call.

 

•  If Channel 70 is busy, the transceiver stands by until the channel 

becomes clear.

 

t

 After the Test call has been transmitted, the following 
screen is displayed.*

  •  Push [EXIT] to return to the normal operating mode.*
 

*  Only USA version, the exit confirmation dialog (p. 29) is displayed.

  •  Only USA version, push [RESEND] to resend the call.

 

y

 When the acknowledgement call is received, alarm sounds 
and the following screen is displayed.

 

u

 Push [ALARM OFF] to stop the alarm, and then the screen 
as shown below is displayed.

 

i

Push [EXIT] to return to the normal operating mode.*

 

* Only USA version, the exit confirmation dialog (p. 29) is displayed.

Displayed 
for only USA 
version.

Summary of Contents for IC-M423

Page 1: ...N MANUAL VHF MARINE TRANSCEIVERS This device complies with Part 15 of the FCC Rules Operation is subject to the condition that this device does not cause harmful interference M423 M423G M423GE M424 M424G IC M423G ...

Page 2: ... injury fire hazard or electric shock may occur CAUTION Equipment damage may occur NOTE If disregarded inconvenience only No risk of personal injury fire or electric shock CLEAN THE TRANSCEIVER AND MICROPHONE THOR OUGHLY WITH FRESH WATER after exposure to saltwa ter and dry it before operating Otherwise the transceiver s keys switches and controllers may become unusable due to salt crystallization...

Page 3: ...magnetic 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 the installation height should be at least 1 4 meters above any accessible position In the case where an antenna cannot be installed at a reasonable height then the transmitter should neither be continuously operated f...

Page 4: ...transmit with radio and antenna when persons are within the MPE radius of the antenna unless such persons such as driver or radio operator are shielded from antenna field by a grounded metallic barrier The MPE Radius is the minimum distance from the antenna axis that person should maintain in order to avoid RF exposure higher than the al lowable MPE level set by FCC FAILURE TO OBSERVE THESE LIMITS...

Page 5: ...de de la radio et de l antenne lorsque des personnes se trouvent à l intérieur du rayon d exposition maximale admissible de cette antenne à moins que ces personnes comme le conducteur ou l opérateur radio ne soient protégées du champ de l antenne par un écran métallique relié à la masse Le rayon d exposition maximale admissible équivaut à la distance minimale que cette personne doit maintenir entr...

Page 6: ... de classe A conformément au point 15 de la réglementation FCC Ces limites sont définies de façon à fournir une protection raisonnable contre le brouillage préjudiciable lorsque cet appareil est utilisé dans un environnement commercial Cet équipe ment génère utilise et peut émettre un rayonnement de fréquence ra dio S il n a pas été installé conformément aux instructions il peut par ailleurs créer...

Page 7: ... could cause bodily injury KEEP the transceiver and microphone at least 1 m away from the vessel s magnetic navigation compass DO NOT use or place the transceiver in areas with tem peratures below 20 C 4 F or above 60 C 140 F or in areas subject to direct sunlight such as the dashboard DO NOT use harsh solvents such as benzine or alcohol to clean the transceiver as they will damage the transceiver...

Page 8: ...lessures corporelles MAINTENIR l émetteur récepteur et le microphone à au moins 1 mètre du compas de route magnétique du navire NE PAS utiliser ou placer l émetteur récepteur dans des zones où la temperature est inférieure à 20 4 F ou supérieure à 60 140 F ou dans des zones soumises au rayonnement solaire direct telles le tableau de bord NE PAS nettoyer l appareil avec des solvants agressifs tels ...

Page 9: ...peaker Microphone 8 3 PREPARATION 9 10 Entering the MMSI code 9 Entering the ATIS code For Dutch and German version transceivers 10 4 BASIC OPERATION 11 18 Selecting a Channel 11 Receiving and transmitting 14 Adjusting the volume and squelch levels 15 Entering a Call channel data 16 Entering a Channel name 16 Microphone Lock function 17 Adjusting the Backlight level 18 Using the AquaQuake water dr...

Page 10: ...ker 72 Using the PA Public Address 72 Using the Horn 73 9 MENU SCREEN OPERATION 74 83 Using the Menu screen 74 Menu screen items 75 Radio Settings items 76 Configuration items 78 10CONNECTIONS AND MAINTENANCE 84 90 Connections 84 Antenna 86 Fuse replacement 86 Cleaning 86 Supplied accessories 86 Mounting the transceiver 87 MB 132 installation 88 Microphone installation 89 11SPECIFICATIONS AND OPTI...

Page 11: ... purposes 2 OPERATOR S LICENSE A Restricted Radiotelephone Operator Permit is the license most often held by small vessel radio operators when a radio is not required for safety purposes If required the Restricted Radiotelephone Operator Permit must be posted or kept with the operator If required only a licensed radio operator may operate a transceiver However non licensed individuals may talk ove...

Page 12: ...p 14 74 While scanning push to check Favorite channels change the scanning direction or manually resume a scan p 20 t CLEAR KEY CLEAR pp 9 16 74 Push to cancel the entered data or to return to the previ ous screen y MENU KEY MENU p 74 Push to enter or exit the Menu screen u VOLUME AND SQUELCH SWITCH POWER SWITCH VOL SQL PWR When the power is OFF hold down for 1 second to turn ON power p 14 Hold do...

Page 13: ...h to start Dualwatch or Tri watch Push to stop Dualwatch or Tri watch when either is ac tivated High Low p 14 Push to set the power to high or low Some channels are set to only low power Channel Weather channel pp 11 13 Push to selects and toggles the regular channel and Weather channel For only the USA and Australian version transceivers Channel p 11 Push to select a regular channel For only the ...

Page 14: ...d down for 3 seconds to clear or set all Favorite channels in the selected channel group Name p 16 Push to enter the channel name entry mode Backlight p 18 Push to enter the LCD and key backlight brightness ad justment mode While in the adjustment mode push Ω or rotate Dial to adjust the brightness of the LCD and key backlight Log p 63 Push to enter RCVD CALL LOG in the DSC CALLS menu ...

Page 15: ...or DSC depending on the version WX is displayed when the weather channel is select ed For only USA and Australian version transceivers t CALL CHANNEL ICON p 11 Displayed when the Call channel is selected y DUPLEX ICON p 12 Displayed when a duplex channel is selected u FAVORITE CHANNEL ICON p 20 Displayed when a Favorite Tag channel is selected i MESSAGE ICON p 63 Blinks when there is an unread DSC...

Page 16: ...S current time is invalid will blink every 2 seconds instead of the current time After 23 5 hours has passed NO TIME is displayed will blink every 2 seconds instead of the current time after 4 hours have passed from when the time was manu ally entered The manually entered time is held for only 23 5 hours and after that NO TIME is displayed 3 hours and 59 minutes for USA version LOCAL is displayed ...

Page 17: ... when no GPS receiver is connected and no position is manually entered 8 SCAN INDICATOR SCAN 16 is displayed during a Priority scan SCAN is displayed during a Normal scan p 20 DUAL 16 is displayed during Dualwatch TRI 16 is displayed during Tri watch p 20 9 LOCAL ICON p 14 Displayed when the Attenuator function is turned ON For only USA and Australian version transceivers Softkey function Various ...

Page 18: ... a scan pp 14 20 e TRANSMIT POWER KEY H L Push to toggle the power high or low p 14 Some channels are set to only low power While holding down H L turn ON the power to turn the Microphone Lock function ON or OFF p 17 HI LO is printed for the IC M423 IC M424 r CHANNEL 16 CALL CHANNEL KEY 16 C Push to select Channel 16 p 11 Hold down for 1 second to select the Call channel p 11 The CALL icon is disp...

Page 19: ...code turn OFF the power then turn it ON again e e Enter your MMSI code in the following way Select a desired number using Dial or Ω Push ENT or Dial to set it To move the cursor select either arrow or then push ENT or Dial r r Repeat step e to enter all 9 digits t t After entering the 9 digit code FINISH is automatically selected and then push ENT or Dial to set it y y The MMSI CONFIRMATION screen...

Page 20: ... OFF the power then turn it ON again e e Enter your ATIS code in the following manner Select a desired number using Dial or Ω Push ENT or Dial to set it To move the cursor select either arrow or then push ENT or Dial r r Repeat step e to enter all 10 digits t t After entering the 10 digit code FINISH is automatically selected and then push ENT or Dial to set it y y The ATIS CONFIRMATION screen is ...

Page 21: ...23 IC M423G IC M423GE except for Australian version D D Call channel Each regular channel group has a separate leisure use Call channel The Call channel is monitored during Tri watch The Call channel data can be entered The channels used to store your most often used channel in each channel group for quick recall p 16 Hold down 16 C for 1 second to select the Call channel of the selected channel g...

Page 22: ...l or push to select CHAN Group and then push ENT r r Rotate Dial or push to select the desired channel group and then push ENT USA USA International INT CAN Canada ATIS or DSC channel groups may be selected depending on the transceiver version Push BACK to return to the previous screen t t Push EXIT to exit the Menu screen y y Push to select a channel Pushing Y Z on the microphone selects only Fav...

Page 23: ...annel or while scanning p 19 q q Push CH WX once or twice to select a weather channel WX is displayed when a weather channel is selected WX is displayed when the Weather Alert function is ON p 77 w w Push to select a channel Pushing Y Z on the microphone also selects a channel When weather alert is OFF When weather alert is ON The Weather channel list Frequency MHz RX only 162 425 RX only 162 450 ...

Page 24: ...hen low power is selected Choose low power for short range communications choose high power for longer distance communications Some channels are for only low power u u Hold down PTT to transmit then speak at your normal voice level is displayed Channel 70 cannot be used for transmission other than DSC i i Release PTT to receive Information The Noise Cancel function reduces random noise components ...

Page 25: ...or squelch adjustment screen w w Rotate VOL SQL Dial or push Ω to adjust the volume or squelch level The transceiver has 20 volume levels and OFF The transceiver has 11 squelch levels OPEN is completely open 10 is tight squelch 1 is loose squelch If no key is push for about 5 seconds the transceiver sets the selected volume level and returns to the normal mode e e Push ENT to set the level and exi...

Page 26: ...s the Call channel Push CLEAR to cancel Entering a Channel name Enter a name of up to 10 characters Capital letters 0 to 9 some symbols _ and a space can be entered q q Push CH to select a channel First cancel the Dualwatch Tri watch or Scan function if acti vated w w Push NAME to open the channel name enter screen A cursor is displayed on the first character e e Enter the desired channel name in ...

Page 27: ...unction electrically locks 16 C 1 and the H L 2 keys on the supplied microphone This prevents accidental channel changes and function ac cess 1For only the IC M423G IC M423GE and IC M424G 2 HI LO is printed for the IC M423 and IC M424 While holding down H L or HI LO on the microphone hold down PWR Dial to turn ON the transceiver and turn the Microphone Lock function ON or OFF HI LO Y Z H L 16 C IC...

Page 28: ...QL Dial one or more times to display the backlight adjustment screen w w Rotate VOL SQL Dial to adjust the brightness of the LCD and key backlight and then push ENT The desired function can be assigned to Dial See page 79 for details Using the AquaQuake water draining function The AquaQuake water draining function clears water away from the speaker grill Without this function water may muffle the ...

Page 29: ...enu screen p 76 PRIORITY SCAN The Priority scan sequentially searches through all Favor ite channels while monitoring Channel 16 When a signal is detected on Channel 16 the scan pauses until the signal disappears When a signal is detected on a channel other than Channel 16 the scan becomes a Dualwatch until the signal disappears NORMAL SCAN The Normal scan like the Priority scan sequentially searc...

Page 30: ...set all channels as Favorite channels Starting a scan First set the scan type Priority or Normal scan and scan resume timer in the Menu screen p 76 q q Select the desired channel group p 12 w w Set the Favorite channels as described to the left e e Make sure the squelch is closed to start a scan r r Push SCAN to start a Priority or Normal scan SCAN 16 is displayed during a Priority scan SCAN is di...

Page 31: ... TRI 16 is displayed during Tri watch A beep tone sounds when a signal is received on Channel 16 r r To cancel Dualwatch or Tri watch push DW again DUALWATCH TRI WATCH SIMULATION Dualwatch Tri watch Call channel Ch 88 Ch 16 Ch 88 Ch 16 Ch 88 Ch 75 If a signal is received on Channel 16 Dualwatch and Tri watch pause on Channel 16 until the signal disappears If a signal is received on the Call channe...

Page 32: ... other than 0 for a Group ID The first two digits are 0 for any Coast station ID r r Repeat step e to enter all 9 digits t t After entering the 9 digit code push ENT or Dial to set it The ID name entry screen is displayed y y Enter a desired 10 digit ID name in the following way Select a desired character using Dial or Y Z Ω Push ENT or Dial to set it To move the cursor select either arrow or then...

Page 33: ...her than 0 for a Group ID The first two digits are 0 for any Coast station ID r r Repeat step e to enter the specific 9 digits group code t t After entering the 9 digit code push ENT or Dial to set it Group ID name entry screen is displayed y y Enter a desired 10 digit ID name in the following way Select a desired character using Dial or Y Z Ω Push ENT or Dial to set it To move the cursor select e...

Page 34: ...entered No ID is displayed In this case push MENU to exit the MENU screen w w Rotate Dial or push Y Z to select a desired ID name then push DEL e e Push OK to delete the ID and return to the INDIVIDUAL ID or GROUP ID list screen Push CANCEL to cancel it r r Push MENU to exit the MENU screen MENU DSC Settings Individual ID Group ID Push MENU Rotate Dial then push ENT ...

Page 35: ...sition using Dial or Y Z Ω Select a desired number using Dial or Y Z Ω Push ENT or Dial to set it To move the cursor select either arrow or then push ENT or Dial Select N North latitude or S South latitude when the cursor is on the N or S position Select W West longitude or E East longitude when the cursor is on the W or E position Push EXIT to return to the normal operating mode Push BACK to retu...

Page 36: ...lected and the Distress call is transmitted w w After transmitting the call the transceiver waits for an ac knowledgment call The Distress call is automatically transmitted every 3 5 to 4 5 minutes until an acknowledgement is received Call repeat mode or DSC Cancel call is made p 29 Push RESEND to manually transmit the Distress repeat call Push Ω then push INFO to display the transmitted Dis tress...

Page 37: ...Adrift Abandoning ship Piracy or Man Overboard are selectable The nature of the distress is stored for 10 minutes after select ing Push EXIT to return to the normal operating mode Push BACK to return to the previous screen e e The Distress call confirmation screen is displayed Rotate Dial or push Y Z to see the hidden lines r r Hold down DISTRESS for 3 seconds to transmit the Dis tress call While ...

Page 38: ... distress Selected in step w Position information The latest GPS or manually entered position is held for 23 5 hours or until the power is turned OFF When no GPS receiver is connected and built in GPS re ceiver is not receiving valid position data and both posi tion and time have been manually entered the screen as shown below is displayed Edit your latitude and longitude position and UTC time as ...

Page 39: ...an acknowledgement call e e Push FINISH Push EXIT to return to waiting for an acknowledgement call r r The Distress cancel call is transmitted t t Channel 16 is automatically selected Report your situation using the microphone After the report push EXIT to return to the normal operating mode Only USA version push RESEND to resend the call Only USA version the exit confirma tion dialog is displayed...

Page 40: ...n in step e is dis played after 10 seconds Push IGN to ignore the call and return to the normal operating mode Push INFO to display the Distress Relay Call information Push PAUSE to pause the countdown About Received call information Push IGN to ignore the call and return to the normal operating mode Push BACK to return to the previous screen Push ACPT to go to the next step e e Push ACK Push EXIT...

Page 41: ...call Push EXIT to return to the normal operating mode The exit confirmation dialog p 29 is displayed Push BACK to return to the previous screen t t The Distress Relay Acknowledgement is transmitted y Channel 16 is automatically selected Push EXIT to return to the normal operating mode The exit confirmation dialog p 29 is displayed Push RESEND to resend the acknowledgement ...

Page 42: ...en Manual Input is selected enter a desired 9 digit MMSI ID code for the individual you wish to call Push EXIT to return to the normal operating mode Push BACK to return to the previous screen About Manual Entry Enter a desired individual ID in the following way Select a desired number using Dial or Ω Push ENT or Dial to set it To move the cursor select either arrow or then push ENT or Dial The fi...

Page 43: ...clear y y Standby on Channel 70 until an acknowledgement is received Push EXIT to return to the normal operating mode Only USA version the exit confirmation dialog p 29 is displayed Only USA version push RESEND to resend the call u u When the acknowledgement Able to comply is received alarm sounds and the screen below is displayed Push ALARM OFF to stop the alarm and then select the intership chan...

Page 44: ...connected to your transceiver you can make in dividual DSC calls to selected AIS targets on the transponder without needing to enter the target s MMSI code See pages 69 and 70 for more details Unreleased as of April 2020 D D Making an Individual Acknowledgement When you receive an Individual call you can make an ac knowledgement Able to Comply Propose New Channel or Unable to Comply by using the o...

Page 45: ... if set See page 65 for details Propose New Channel You can make an acknowledgement call but you specify the intership chan nel Select a desired intership channel using Dial or Y Z then push ENT r r The Individual ACK confirmation screen is displayed Push CALL to make an acknowledgement call t t The screens shown below are displayed y y Reply to the call using the microphone u u Push EXIT to retur...

Page 46: ... to return to the previous screen e e Do steps e to u as described in Quick ACK beginning on the previous page D D Making a Group call The Group call function allows you to make a DSC signal to only a specific group q q Enter GROUP CALL in the DSC CALLS menu MENU DSC Calls Group Call Push MENU Rotate Dial then push ENT w w Select a desired preset group address or Manual Input using Dial or Y Z the...

Page 47: ... as 0 and the second digit is other than 0 for a Group ID The first two digits are 0 for any Coast station ID r r A confirmation screen is displayed Confirm the call contents t t Push CALL to make a Group call If Channel 70 is busy the transceiver stands by until the channel becomes clear y y After the Group call has been transmitted the following screen is displayed u u Announce the information u...

Page 48: ... EXIT to return to the normal operating mode Push BACK to return to the previous screen e e Select a desired traffic channel using Dial or Y Z then push Dial or ENT The selected channel is displayed r r A confirmation screen is displayed Confirm the call contents t t Push CALL to make an All Ships call If Channel 70 is busy the transceiver stands by until the channel becomes clear y y After the Al...

Page 49: ... Position Request Call can be entered first p 22 When Manual Input is selected enter a desired 9 digit MMSI ID code for the individual you wish to call Push EXIT to return to the normal operating mode Push BACK to return to the previous screen About Manual Entry Enter a desired individual ID in the following way Select a desired number using Dial or Y Z Ω Push ENT or Dial to set it To move the cur...

Page 50: ...ayed Push EXIT to return to the normal operating mode Only USA version the exit confirmation dialog p 29 is displayed Only USA version push RESEND to resend the call y y When the acknowledgement call is received alarm sounds and the following screen is displayed u u Push ALARM OFF to stop the alarm and then the screen as shown below is displayed i i Push EXIT to return to the normal operating mode...

Page 51: ...code for the Individual call can be entered first p 22 When Manual Input is selected enter a desired 9 digit MMSI ID code for the individual you wish to call Push EXIT to return to the normal operating mode Push BACK to return to the previous screen About Manual Entry Enter a desired individual ID in the following way Select a desired number using Dial or Y Z Ω Push ENT or Dial to set it To move t...

Page 52: ...ing valid position data and both position and time have been manually entered the screen as shown below is displayed Edit your latitude and longitude position and UTC time as follows For only the IC M423G IC M423GE and IC M424G Push CHG then edit your latitude and longitude position and UTC time Select a desired number using Dial or Y Z Ω Push ENT or Dial to set it To move the cursor select either...

Page 53: ...r the Individual call can be entered first p 22 When Manual Input is selected enter a desired 9 digit MMSI ID code for the individual you wish to call Push EXIT to return to the normal operating mode Push BACK to return to the previous screen About Manual Entry Enter a desired individual ID in the following way Select a desired number using Dial or Y Z Ω Push ENT or Dial to set it To move the curs...

Page 54: ...ed Push EXIT to return to the normal operating mode Only USA version the exit confirmation dialog p 29 is displayed Only USA version push RESEND to resend the call y y When the acknowledgement call is received alarm sounds and the following screen is displayed u u Push ALARM OFF to stop the alarm and then the screen as shown below is displayed i i Push EXIT to return to the normal operating mode O...

Page 55: ...or the Individual call can be entered first p 22 When Manual Input is selected enter the 9 digit MMSI ID code for the individual you wish to call Push EXIT to return to the normal operating mode Push BACK to return to the previous screen About Manual Entry Enter a desired address ID in the following way Select a desired number using Dial or Ω Push ENT or Dial to set it To move the cursor select ei...

Page 56: ...return to the normal operating mode Only USA version the exit confirmation dialog p 29 is displayed Only USA version push RESEND to resend the call y y When the acknowledgement call is received alarm sounds and the following screen is displayed u u Push ALARM OFF to stop the alarm and then the screen as shown below is displayed i i Push EXIT to return to the normal operating mode Only USA version ...

Page 57: ...played Push ALARM OFF to stop the alarm w w Push ACK Push EXIT to return to the normal operating mode Push INFO to display the Test call information About Received call information Push EXIT to return to the normal operating mode Push BACK to return to the previous screen Push ACK to go to the next step e e The Test ACK confirmation screen is displayed Push CALL to make an acknowledgement call r r...

Page 58: ...e TEST ACK item will not be displayed Push EXIT to return to the normal operating mode Push BACK to return to the previous screen w w Select a desired Test call to reply to using Dial or Y Z then push Dial or ENT e e The Test ACK confirmation screen is displayed Push CALL to make an acknowledgement call r r While transmitting the acknowledgement call the screen shown below is displayed and then re...

Page 59: ...eceived alarm sounds and the screen shown below is displayed Push ALARM OFF to stop the alarm w w Push ACK Push EXIT to return to the normal operating mode Push INFO to display the Test call information About Received call information Push EXIT to return to the normal operating mode Push BACK to return to the previous screen Push ACK to go to the next step e e The Position Reply confirmation scree...

Page 60: ...e transmitting the reply call the screen shown below is displayed and then returns to the normal operating mode When no GPS receiver is connected and built in GPS re ceiver is not receiving valid position data and both position and time have been manually entered the screen as shown below is displayed Edit your latitude and longitude position and UTC time as follows For only the IC M423G IC M423GE...

Page 61: ...the alarm w w Push ACK Push EXIT to return to the normal operating mode Push INFO to display the Position Report Request call informa tion About Received call information Push EXIT to return to the normal operating mode Push BACK to return to the previous screen Push ACK to go to the next step e e The Position Report Reply confirmation screen is dis played Push CALL to make a reply call r r While ...

Page 62: ...e normal operating mode Push BACK to return to the previous screen w w Select a desired Position Report Request call to reply to using Dial or Y Z then push Dial or ENT e e The Position Report Reply call confirmation screen is dis played Push CALL to make an acknowledgement call r r While transmitting the reply call the screen shown below is displayed and then returns to the normal operating mode ...

Page 63: ... alarm sounds and the screen as shown below is displayed Push ALARM OFF to stop the alarm w w Push ACK Push EXIT to return to the normal operating mode Push INFO to display the Polling Request call information About Received call information Push EXIT to return to the normal operating mode Push BACK to return to the previous screen Push ACK to go to the next step e e The Polling Request Reply conf...

Page 64: ...lling Reply item will not be displayed Push EXIT to return to the normal operating mode Push BACK to return to the previous screen w w Select a desired Polling Request call to be replied using Dial or Y Z then push Dial or ENT e e The Polling Request Reply call confirmation screen is dis played Push CALL to make an acknowledgement call r r While transmitting the reply call the screen shown below i...

Page 65: ... pause the countdown The softkey is displayed if the CH Auto Switch item in the DSC SET menu p 66 is set to 10 sec Push RESUME to resume the countdown The call is saved in the received call log ACPT Push to accept the call And then push CH 16 to change the operating channel to Channel 16 and then monitor it as a coast station may require assistance Even if you haven t pushed CH 16 within 10 second...

Page 66: ...item in the DSC SET menu p 66 is set to 10 sec Push RESUME to resume the countdown The call is saved in the received call log ACPT Push to accept the call And then push CH 16 to change the operating channel to Channel 16 and then monitor it as a coast station may require assistance Even if you haven t pushed CH 16 within 10 seconds the oper ating channel automatically changes to Channel 16 p 66 Pu...

Page 67: ...is stored in the Received Call Log INFO Push to display the Received call information p 63 PAUSE For only USA version transceivers Push to pause the countdown The softkey is displayed if the CH Auto Switch item in the DSC SET menu p 66 is set to 10 sec Push RESUME to resume the countdown The call is saved in the received call log ACK Push to display the INDIVIDUAL ACK screen to reply to the Call S...

Page 68: ...to blink and the Call is stored in the Received Call Log INFO Push to display the Received call information p 63 PAUSE For only USA version transceivers Push to pause the countdown The softkey is displayed if the CH Auto Switch item in the DSC SET menu p 66 is set to 10 sec Push RESUME to resume the countdown The call is saved in the received call log ACPT Push to monitor the channel specified by ...

Page 69: ... normal operating mode The transceiver exits the DSC mode continues to blink and the Call is stored in the Received Call Log INFO Push to display the Received call information p 63 UNABLE For only USA version transceivers Push to transmit the Unable to Comply acknowledgement The call is saved in the DSC Log ABLE For only USA version transceivers Push to transmit the Able to Comply acknowledgement ...

Page 70: ...ARM OFF to stop the alarm and the blinking backlight Even if you do not push ALARM OFF the alarm stops after 2 minutes and then the screen in step w is displayed w w Push a softkey to select your desired action EXIT Push to ignore the Call and return to the normal operat ing mode The transceiver exits the DSC mode continues to blink and the Call is stored in the Received Call Log INFO Push to disp...

Page 71: ...ps after 2 minutes and then the screen in step w is displayed w w Push a softkey to select your desired action IGN Push to ignore the Call and return to the normal operat ing mode The transceiver exits the DSC mode continues to blink and the Call is stored in the Received Call Log INFO Push to display the Received call information p 63 ACK Push to display the POLLING REPLY screen to reply to the C...

Page 72: ...ver exits the DSC mode continues to blink and the Call is stored in the Received Call Log Transmitted Call log The transceiver automatically stores up to 50 transmitted calls and the logs can be used as a supplement to your log book q q Enter TX CALL LOG in the DSC CALLS menu MENU DSC Calls Transmitted Call Log Push MENU Rotate Dial then push ENT w w Push Y Z to select the desired item then push E...

Page 73: ...alls Received Call Log Push MENU Rotate Dial then push ENT w w Push Y Z to select Distress then push ENT The Distress messages are stored in Distress is displayed when there are unread DSC messages is displayed when there are no unread DSC messages No icon is displayed when there are no DSC messages Push BACK to return to the previous screen Push EXIT to return to the normal operating mode e e Pus...

Page 74: ... displayed when there are no unread DSC messages No icon is displayed when there are no DSC messages Push BACK to return to the previous screen Push EXIT to return to the normal operating mode e e Push Y Z to select the desired item then push ENT The message in the unopened file has not been read r r Rotate Dial to scroll the DSC message contents The stored message has various information dependin...

Page 75: ...on Reply Polling Re ply or Test Acknowledgement Call respectively When INDIVIDUAL ACK is set to Auto TX the trans ceiver automatically transmits the Acknowledgment call including Unable to Comply No Reason Given after re ceivng the Individual call q q Enter either INDIVIDUAL ACK POSITION ACK or TEST ACK in the DSC Settings menu MENU DSC Settings Individual ACK Push MENU Rotate Dial then push ENT M...

Page 76: ... No Delay After receiving a DSC call and ACPT is pushed on the confirmation screen the transceiver immediately changes to the channel assigned by the re ceived DSC call 10 Second Delay After receiving a Distress call and ACPT is pushed on the confirmation screen the transceiver remains on the current operating channel for 10 sec onds After that the transceiver auto matically changes to the channel...

Page 77: ...te Dial or push Y Z to set the Alarm setting to ON or OFF r r Push EXIT to return to the normal operating mode D Channel 70 Squelch level Set the squelch level on Channel 70 The transceiver has 11 squelch levels between 1 loose squelch and 10 tight squelch and OPEN OPEN is completely open q Enter CH 70 SQL LEVEL in the DSC Settings menu MENU DSC Settings CH 70 SQL Level Push MENU Rotate Dial then ...

Page 78: ...menu MENU DSC Settings DSC Loop Test Push MENU Rotate Dial then push ENT w Push ENT to start the DSC loop test Push BACK to return to the previous screen When the transmit DSC and receive DSC signals match OK is displayed e e Push EXIT to return to the normal operating mode If NG is displayed in step w either or both TX and RX DSC circuits has a problem In that case you will have to send the trans...

Page 79: ... screen of the AIS target is displayed Make sure the transceiver is in the normal operating mode Oth erwise you cannot make an individual DSC call using the tran sponder w w Push DSC to display the voice channel selection screen and then push Y or Z to select a desired voice channel Voice channels are already preset into the transponder in recom mended order When a coast station is selected in ste...

Page 80: ...ct the intership channel specified in step w A different intership channel will be selected if the station you called cannot use the channel To reply push PTT and speak at your normal voice level You can check the MMSI code or the name if entered of the AIS target on the display If the acknowledgement Unable to comply is received push ALARM OFF to stop the alarm and then INDI VIDUAL CALL FAILED is...

Page 81: ...wn INCM CALL to sound the intercom beeps The transceiver and the command microphone sound beeps while holding down INCM CALL CALL is displayed r r After releasing INCM CALL hold down PTT and speak into the microphone at your normal voice level TALK is displayed on the caller s display and LSTN is dis played on the listener s display Rotate dial to adjust the transceiver s intercom volume level Rot...

Page 82: ...Speaker volume level adjustment screen and then rotate Dial After adjusting push ENT to set it Using the PA Public Address The transceiver has a PA function to make announcements through a PA speaker Connect a PA speaker rated at more than 10 W at 10 distor tion with a 4 load as described on page 84 Transmitting is disabled while in the PA mode q q Push PA to enter the Public Address mode w w Hold...

Page 83: ...r the Horn mode w w Hold down HORN to sound a horn While holding down HORN the horn sounds and the screen below is displayed Rotate Dial or push Y Z Ω to adjust the horn volume level e e Push EXIT to return to the normal operating screen While in the Horn mode the transmit and receive functions are disabled When the transceiver is transmitting the Horn function is disabled ...

Page 84: ...oup to USA q q Push MENU w w Rotate Dial or push to select the root item Radio Settings and then push ENT If or is continuously held down the items are sequentially highlighted e e Rotate Dial or push to select CHAN Group and then push ENT r r Rotate Dial or push to select USA and then push ENT to set it is displayed next to USA t t Push EXIT to exit the Menu screen Push CLEAR or BACK to return to...

Page 85: ...nsceivers 3 Displayed only when no GPS information is received 4 Displayed only when the optional HM 195 is connected 5 For only USA version transceivers 6 This setting may not be usable depending on the transceiver ver sion or presetting D D Radio Settings Item Ref Item Ref Scan Type p 76 WX Alert 2 p 77 Scan Timer p 76 RT Indicator 5 p 77 Dual Tri Watch p 76 CH Display 6 p 77 CHAN Group p 76 D D...

Page 86: ...an pauses until the signal disappears Default OFF Priority scan When ON is selected the scan pauses for 5 sec onds and then resumes even if a signal has been received on any channel other than Channel 16 Normal scan When ON is selected the scan pauses for 5 seconds and then resumes even if a signal has been received on any channel D D Dual Tri watch This item can be selected as Dualwatch or Tri wa...

Page 87: ...ally checked while scanning ON The previously selected last used weather channel is checked while scanning OFF The transceiver does not detect a weather alert tone D D RT Indicator For only USA version transceivers Select weather or not to display RT Radio Telephone icon p 6 while in the Radio Telephone mode Default ON D D CH Display You can select the number of digits to display the channel numbe...

Page 88: ...on beeps sound when a key is pushed Default ON D D Key Assignment Desired functions can be assigned to Dial and the softkeys q q When the KEY ASSIGNMENT screen is displayed rotate Dial or push to select Dial or Softkeys and then push ENT w w Rotate Dial or push to select the desired position and then push ENT To return to the default select Set default and push ENT For Dial assignment For Softkeys...

Page 89: ...is displayed and rotating Dial adjusts the audio volume CH is assigned to the 3rd position and pushing Dial three times selects CH The channel number is displayed and ro tating Dial will select the desired channel You can assign VOL SQL CH WX and Backlight to any one of the 1st 2nd 3rd or 4th sequential positions Repeatedly pushing Dial sequentially displays all the func tions in the order they ar...

Page 90: ...option e e Push EXIT to exit the Menu screen Push CLEAR or BACK to return to the previous screen RX Turn the receive Noise Cancel function ON or OFF OFF Turns OFF the function Default 1 The Noise Cancel function reduces random noise com ponents in the received signal to approximately one half 2 The Noise Cancel function reduces random noise com ponents in the received signal to approximately one t...

Page 91: ...o the selected option e e Push EXIT to exit the Menu screen Push CLEAR or BACK to return to the previous screen Not DSC Related When the LCD displays a screen other than the normal opera tion screen or one not related to the DSC and no key opera tion occurs for this set period the transceiver automatically returns to the normal operating screen Default 10 min DSC Related When the LCD displays the ...

Page 92: ...e data from the NMEA Output port to an external device For only the IC M423G IC M423GE and IC M424G DSC data output Default OFF When receiving a DSC call this function makes the trans ceiver send the DSC data from its NMEA Output port to an external device All Stations Outputs the call from any vessel from the NMEA Output port Station List Outputs the call from any vessels listed on the Individual...

Page 93: ...ker Displayed only when the optional HM 195 is connected The HM 195 s external speaker can be used instead of the internal speaker Default Internal Speaker The COMMANDMIC SP screen is displayed on the HM 195 s dis play Not displayed on the transceiver s display Internal Speaker Turns ON the internal speaker Default External Speaker Turns ON the external speaker Regardless of this setting the suppl...

Page 94: ...later RMC GGA GNS GLL VTG GSV and GSA sentence format compatible GPS receiver is re quired Ask your dealer about suitable GPS receivers The GPS sentences input from an external GPS receiver have priority over the sentences from the built in GPS e AF OUT LEADS Blue External Speaker Black External Speaker Connects to an external speaker Orange Public Address Speaker Gray Public Address Speaker Conne...

Page 95: ...nects to the supplied GPS antenna For only the IC M423GE NOTE Be sure the GPS antenna is positioned where it has a clear view to receive signal from satellites and fixed using the supplied double sided adhesive pad u COMMAND MICROPHONE JACK Connects to the optional Command microphone p 89 D D Connecting to the MA 500TR MA 510TR An Individual DSC call can be made to the AIS target using the transpo...

Page 96: ...d replace the damaged fuse with a new one of the proper rating Cleaning If the transceiver becomes dusty or dirty wipe it clean with a soft dry cloth DO NOT use harsh solvents such as benzine or alcohol as they will damage the transceiver s sur faces Supplied accessories Mounting bracket For mounting bracket DC power cable Microphone hanger and screws 3 16 mm Knob bolts Screws 5 20 mm Flat washers...

Page 97: ...ay may not be easy to read at some angles NOTE for the IC M423G and IC M424G Built in GPS receiver is located at the right top of the front panel If the transceiver is covered with any object that interrupts the GPS signals from the satellites the GPS receiver will not calculate its position Therefore when you use the built in GPS receiver be sure the transceiver is positioned so the GPS receiver ...

Page 98: ...nt the transceiver w w Slide the transceiver through the hole as shown below e e Attach the clamps on either side of the transceiver with two M5 8 mm supplied bolts Make sure that the clamps align parallel to the transceiver body r r Tighten the end bolts on the clamps clockwise so that the clamps press firmly against the inside of the instrument control panel t t Tighten the locking nuts counterc...

Page 99: ... cable can be used between the transceiver and the OPC 1540 Up to two OPC 1541 can be added D D Installation q q Insert the OPC 1540 cable connector into the command microphone jack and tighten the nut w w To use the cable connector as a wall socket install it as described to the right e e Using the mounting base as a template carefully mark the holes where the cable and three screws will be faste...

Page 100: ...90 10 CONNECTIONS AND MAINTENANCE Gasket Mounting base Cap Nut ...

Page 101: ...mitter Output power 25 W 1 W Modulation system Variable reactance frequency modulation Maximum frequency deviation 5 0 kHz Spurious emissions IC M423 IC M423G IC M423GE Less than 0 25 µW IC M424 IC M424G Less than 70 dBc high Less than 56 dBc low IC M423 CHN AUS version Less than 70 dBc high Less than 56 dBc low D D Receiver Receive system Double conversion superheterodyne Sensitivity FM IC M423 I...

Page 102: ...tion into a 4 Ω load D D GPS IC M423GE Frequency 1575 42 MHz Channel 66 ch D D Dimensions Options MB 132 flush mount kit To mount the transceiver to a panel MA 500TR MA 510TR class b ais transponder To transmit individual DSC calls to a selected AIS targets Unreleased as of April 2020 HM 195 commandmicIV External microphone type controller Provides optional intercom operation A 6 m 20 ft microphon...

Page 103: ...825 1064 156 225 156 225 65 156 275 160 875 Channel Number Frequency MHz USA 10 INT CAN 5 Transmit Receive 1065 1065 5 1065 2 156 275 156 275 66 156 325 160 925 1066 1066 5 1066 2 156 325 156 325 67 1 67 67 156 375 156 375 68 68 68 156 425 156 425 69 69 69 156 475 156 475 71 71 71 156 575 156 575 72 72 72 156 625 156 625 73 73 73 156 675 156 675 74 74 74 156 725 156 725 75 2 75 2 156 775 156 775 7...

Page 104: ...ush HI LO to select high power pp 11 12 13 p 14 Scan does not start Favorite channels are not entered Set the desired channels as Favorite chan nels p 20 No beep sounds Beep tones are turned OFF Turn ON the beep tones in the CONFIGURA TION menu p 78 Distress calls cannot be transmitted MMSI DSC self ID code is not entered Enter the MMSI DSC self ID code p 9 NO POSITION and NO TIME are dis played i...

Page 105: ...Cut here Unit mm inch R12 Max 29 5 to 31 5 d 1 5 32 to 1 1 4 180 7 3 32 82 3 7 32 165 1 6 1 2 62 4 2 15 32 MB 132 HM 195 2 3 32 95 14 TEMPLATE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ...

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Page 107: ...uipment Directive 2011 65 EU The full text of the EU declaration of conformity is available at the following in ternet address https www icomjapan com support Disposal The crossed out wheeled bin symbol on your product literature or packaging reminds you that in the European Union all electrical and electronic products batteries and accumulators recharge able batteries must be taken to designated ...

Page 108: ...Canceling a call 29 Receiving a Call 55 Distress Relay Acknowledgement 56 Distress Relay Call 56 DSC Loop Test 68 DSC Settings 65 DUALWATCH TRI WATCH 21 E Explicit Definitions i F Favorite channels 20 Front panel 2 Function display 5 Fuse replacement 86 G Geographical Area Call 58 Group call Making a call 36 Receiving a Call 58 Group ID Entering ID 23 Deleting ID 24 H Horn 73 I IMPORTANT i Inactiv...

Page 109: ...eiving a call 60 Position Request Call Making a call 39 Making a reply call 49 Receiving a call 59 PRECAUTIONS English vi PRÉCAUTIONS Français vii R Receiving 14 Remote ID 83 RX Speaker 72 S Scan Scan resume timer 76 Scan types 19 Starting a scan 20 Softkey function 7 Specifications 91 Speaker Microphone 8 Squelch 15 T Test Acknowledgement call Making a call 47 Receiving a call 62 Test call Making...

Page 110: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan A7197D 1EX 8 Printed in Japan 2014 2020 Icom Inc May 2020 ...

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