m424g instruction manual

m424g instruction manual
INSTRUCTION MANUAL
VHF MARINE TRANSCEIVER
iM423
iM423G
iM424
iM424G
This device complies with Part 15 of the FCC
Rules. Operation is subject to the condition that
this device does not cause harmful interference.
IC-M423G
FOREWORD
IMPORTANT
Thank you for choosing this Icom product. The IC-M423/ICM423G/IC-M424/IC-M424G vhf marine transceiver is designed and built with Icom’s state of the art technology and
craftsmanship. With proper care, this product should provide
you with years of trouble-free operation.
READ ALL INSTRUCTIONS carefully and completely
Hope you agree with Icom’s philosophy of “technology first.”
Many hours of research and development went into the design of your radio.
DDFEATURES
❍ Simple operation with large keys
❍ Easy to hear speaker
❍ Built-in DSC meets ITU Class D requirement
❍ Rugged waterproof construction
❍ Optional COMMANDMICIV™ (HM-195)
❍ Easy to make an individual DSC calls using the
optional MA-500TR Class B AIS Transponder
❍ Built-in GPS *
*For only IC-M423G and IC-M424G.
CLEAN THE TRANSCEIVER AND MICROPHONE THOROUGHLY WITH FRESH WATER after exposure to water
including salt, otherwise, the keys and switch may become
inoperable due to salt crystallization.
i
before using the transceiver.
SAVE THIS INSTRUCTION MANUAL — This instruction manual contains important operating instructions
for the transceiver.
EXPLICIT DEFINITIONS
WORD
DEFINITION
RWARNING!
Personal injury, fire hazard or electric
shock may occur.
CAUTION
NOTE
Equipment damage may occur.
If disregarded, inconvenience only. No risk
of personal injury, fire or electric shock.
IN CASE OF EMERGENCY
COUNTRY CODE LIST
• ISO 3166-1
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16
17
Country
Austria
Belgium
Bulgaria
Croatia
Czech Republic
Cyprus
Denmark
Estonia
Finland
France
Germany
Greece
Hungary
Iceland
Ireland
Italy
Latvia
Codes
AT
BE
BG
HR
CZ
CY
DK
EE
FI
FR
DE
GR
HU
IS
IE
IT
LV
18
19
20
21
22
23
24
25
26
27
28
29
30
31
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Country
Liechtenstein
Lithuania
Luxembourg
Malta
Netherlands
Norway
Poland
Portugal
Romania
Slovakia
Slovenia
Spain
Sweden
Switzerland
Turkey
United Kingdom
Codes
LI
LT
LU
MT
NL
NO
PL
PT
RO
SK
SI
ES
SE
CH
TR
GB
Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the United Kingdom, Germany,
France, Spain, Russia, and/or other countries.
COMMANDMIC is a registered trademark of Icom Incorporated (Japan) in Japan and the United States.
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.Say your call sign or other description of the vessel (AND
9 digit DSC ID if you have one).
4. “LOCATED AT ...............” (your position).
5. State the nature of the distress and assistance required.
6.Give any other information which might facilitate the rescue.
Or, make your Distress call using digital selective calling on
Channel 70.
USING DIGITAL SELECTIVE CALLING (Ch 70)
DISTRESS CALL PROCEDURE
1.While lifting up the key cover, hold down [DISTRESS]
for 3 seconds until you hear 3 short beeps and then one
long beep.
2.Wait for an acknowledgment on Channel 70 from a coast
station.
• After the acknowledgement is received, Channel 16 is automatically selected.
3.Hold down [PTT], then transmit the appropriate information as listed above.
ii
RADIO OPERATOR WARNING
Icom requires the radio operator to meet the
FCC Requirements for Radio Frequency Exposure. An omnidirectional antenna with gain not
greater than 9 dBi must be mounted a miniW ARN ING
mum of 5 meters (measured from the lowest
point of the antenna) vertically above the main
deck and all possible personnel. This is the minimum safe
separation distance estimated to meet all RF exposure compliance requirements. This 5 meter distance is based on the
FCC Safe Maximum Permissible Exposure (MPE) distance
of 3 meters added to the height of an adult (2 meters) and is
appropriate for all vessels.
For watercraft without suitable structures, the antenna must
be mounted so as to maintain a minimum of 1 meter vertically between the antenna, (measured from the lowest point
of the antenna), to the heads of all persons AND all persons
must stay outside of the 3 meter MPE radius.
Do not 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 allowable MPE level set by FCC.
iii
FAILURE TO OBSERVE THESE LIMITS MAY ALLOW
THOSE WITHIN THE MPE RADIUS TO EXPERIENCE RF
RADIATION ABSORPTION WHICH EXCEEDS THE FCC
MAXIMUM PERMISSIBLE EXPOSURE (MPE) LIMIT.
IT IS THE RESPONSIBILITY OF THE RADIO OPERATOR
TO ENSURE THAT THE MAXIMUM PERMISSIBLE EXPOSURE 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) RADIUS HAS BEEN ESTIMATED TO BE A RADIUS OF
ABOUT 3M PER OET BULLETIN 65 OF THE FCC.
THIS ESTIMATE IS MADE ASSUMING THE MAXIMUM
POWER OF THE RADIO AND ANTENNAS WITH A MAXIMUM GAIN OF 9dBi ARE USED FOR A SHIP MOUNTED
SYSTEM.
AVERTISSEMENT POUR LES OPÉRATEURS RADIO
Icom exige que l'opérateur radio se conforme aux
exigences de la FCC en matière d'exposition aux
radiofréquences. Une antenne omnidirectionnelle
dont le gain ne dépasse pas 9dBi doit être fixée
à une distance minimale de 5 mètres (mesurée
AVERTISSEMENT
depuis le point le plus bas de l'antenne) verticalement au-dessus du pont principal et de tout le personnel qui peut
s'y trouver. Il s'agit de la distance de sécurité minimale prévue pour
satisfaire aux exigences de conformité en matière d'exposition aux
RF. Cette distance de 5 mètres est établie en fonction de l'exposition
maximale admissible sécuritaire de 3 mètres établie par la FCC, à
laquelle on ajoute la hauteur d'un adulte (2 mètres); cette distance
convient pour tous les navires.
Dans le cas des embarcations sans structure convenable, l'antenne
doit être fixée de façon à maintenir une distance minimale de 1 mètre
verticalement entre cette antenne (mesurée depuis son point le plus
bas) et la tête de toute personne présente; toutes les personnes
présentes doivent se tenir à l'extérieur d'un rayon d'exposition maximale admissible de 3 mètres.
Ne pas émettre à l'aide 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 entre elle et l'axe de l'antenne pour
éviter une exposition aux RF supérieure au niveau d'exposition maximale admissible fixé par la FCC.
LE NON-RESPECT DE CES LIMITES PEUT CAUSER, POUR LES
PERSONNES SITUÉES DANS LE RAYON D'EXPOSITION MAXIMALE ADMISSIBLE, UNE ABSORPTION DE RAYONNEMENT DE
RF SUPÉRIEURE À L'EXPOSITION MAXIMALE ADMISSIBLE
FIXÉE PAR LA FCC.
L'OPÉRATEUR RADIO EST RESPONSABLE D'ASSURER QUE
LES LIMITES D'EXPOSITION MAXIMALE ADMISSIBLE SOIENT
RESPECTÉES EN TOUT TEMPS PENDANT LA TRANSMISSION
RADIO. L'OPÉRATEUR RADIO DOIT S'ASSURER QU'AUCUNE
PERSONNE PRÉSENTE NE SE SITUE À L'INTÉRIEUR DU RAYON D'EXPOSITION MAXIMALE ADMISSIBLE.
Établir le rayon d'exposition maximale admissible
ON ESTIME QUE LE RAYON D'EXPOSITION MAXIMALE ADMISSIBLE EST D'ENVIRON 3 M, TEL QUE STIPULÉ DANS LE BULLETIN OET 65 DE LA FCC. CETTE DISTANCE ESTIMÉE TIENT
COMPTE D'UN SYSTÈME INSTALLÉ SUR UN NAVIRE UTILISANT
LA PUISSANCE MAXIMALE DE LA RADIO ET DES ANTENNES
DONT LE GAIN MAXIMAL EST DE 9dBi.
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FCC INFORMATION
NOTE
• FOR CLASS A UNINTENTIONAL RADIATORS:
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment
is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the interference at his own expense.
A WARNING STICKER is supplied with the U.S.A. version
transceiver.
To comply with FCC regulations, this sticker must be affixed in
such a location as to be readily seen from the operating controls of the radio as in the diagram below. Make sure the chosen
location is clean and dry before applying the sticker.
EXAMPLE
WARNING.
• POUR LES RAYONNEMENTS NON INTENTIONNELS DE
CLASSE A:
Cet équipement a été testé et reconnu conforme aux limites fixées
pour un appareil numérique 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 équipement génère, utilise et peut émettre un rayonnement de
fréquence radio. S'il n'a pas été installé conformément aux instructions, il peut par ailleurs créer des interférences perturbant les communications radio.
L'utilisation de cet appareil dans une zone résidentielle peut provoquer un brouillage préjudiciable, auquel cas l'utilisateur sera tenu de
corriger la situation à ses frais.
v
PRECAUTIONS
RWARNING! NEVER connect the transceiver to an AC
DO NOT use harsh solvents such as benzine or alcohol to
outlet. This may pose a fire hazard or result in an electric shock.
clean the transceiver, as they will damage the transceiver’s
surfaces. If the transceiver becomes dusty or dirty, wipe it
clean with a soft, dry cloth.
RWARNING! NEVER connect the transceiver to a power source of more than 16 V DC such as a 24 V DC. This
could cause a fire or damage the transceiver.
RWARNING! NEVER reverse the DC power cable polarity when connecting to a power source. This could damage
the transceiver.
RWARNING! NEVER cut the DC power cable between
the DC plug at the back of the transceiver and fuse holder. If
an incorrect connection is made after cutting, the transceiver
may be damaged.
CAUTION: NEVER place the transceiver where normal
operation of the vessel may be hindered or where it 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 temperatures below –20°C (–4°F) or above +60°C (+140°F) or, in
areas subject to direct sunlight, such as the dashboard.
DO NOT disassemble or modify the transceiver for any reason.
BE CAREFUL! The transceiver rear panel will become
hot when operating continuously for long periods of time.
Place the transceiver in a secure place to avoid inadvertent
use by children.
BE CAREFUL! The transceiver and the optional HM-195
commandmicIV™
meet IPX7 requirements for waterproof
protection. However, once the transceiver has been dropped,
waterproof protection cannot be guaranteed because of possible damage to the transceiver’s case or the waterproof
seal.
* Except for the DC power connector, NMEA In/Out leads, and AF
Out leads.
For U.S.A. only
CAUTION: Changes or modifications to this device, not expressly approved by Icom Inc., could void your authority to
operate this device under FCC regulations.
vi
PRÉCAUTIONS
RAVERTISSEMENT! NE JAMAIS connecter l’emetteur-
NE PAS utiliser ou placer l’émetteur-récepteur dans des
recepteur a une alimentation CA au risque de provoquer un incendie ou un choc electrique.
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.
RAVERTISSEMENT! NE JAMAIS brancher l'émetteurrécepteur à une source d'alimentation de plus de 16 V CC,
comme une source de 24 V CC. Cela pourrait causer un incendie ou endommager l'émetteur-récepteur.
RAVERTISSEMENT! NE JAMAIS inverser la polarité du câble d'alimentation CC en le branchant à la source
d'alimentation. Cela pourrait endommager l'émetteur-récepteur.
que benzène ou alcool, susceptibles d'endommager les surfaces exposées du boîtier. En cas de dépôt de poussière ou
de salissures sur l'émetteur-récepteur, il faut l'essuyer avec
chiffon doux et sec.
NE PAS démonter ou modifier l'émetteur-récepteur pour
RAVERTISSEMENT! NE JAMAIS sectionner le câble
quelque raison que ce soit.
d'alimentation CC entre la prise CC de la face arrière de
l'émetteur-récepteur et le porte-fusible. L’émetteur-récepteur
peut être endommagé par la suite en cas de connexion inappropriée.
ATTENTION! La face arrière de l’émetteur-récepteur
chauffe en cas d’utilisation continue sur une longue durée.
MISE EN GARDE: NE JAMAIS installer l’émetteurrécepteur à un emplacement où il pourrait gêner le fonctionnement normal du navire ou provoquer des blessures corporelles.
MAINTENIR l'émetteur-récepteur et le microphone à au
moins 1 mètre du compas de route magnétique du navire.
vii
NE PAS nettoyer l'appareil avec des solvants agressifs tels
Placer l’émetteur-récepteur hors de portée des enfants pour
éviter toute utilisation inopinée.
ATTENTION! L'émetteur-récepteur et l'accessoire optionnel commandmicIVMC répondent aux exigences de l'indice
d'étanchéité IPX7*. Cependant, cette etancheite n’est plus
garantie apres une chute de l’appareil en raison des fissures
du boitier ou des dommages au joint d’etancheite et autres
dommages eventuels consecutifs a un tel incident.
* À l'exception du connecteur d'alimentation CC, des fils d'entrée ou
de sortie NMEA et des fils de sortie de fréquences audio.
TABLE OF CONTENTS
FOREWORD.......................................................................... i
IMPORTANT........................................................................... i
EXPLICIT DEFINITIONS........................................................ i
COUNTRY CODE LIST......................................................... ii
IN CASE OF EMERGENCY.................................................. ii
RADIO OPERATOR WARNING........................................... iii
AVERTISSEMENT POUR LES OPÉRATEURS RADIO....... iv
FCC INFORMATION............................................................. v
NOTE..................................................................................... v
PRECAUTIONS.................................................................... vi
PRÉCAUTIONS................................................................... vii
TABLE OF CONTENTS.......................................................viii
TABLE OF CONTENTS (continued)..................................... ix
4 BASIC OPERATION.......................................................11
■■ 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 draining function. ..........18
1 OPERATING RULES........................................................1
6 DUALWATCH/TRI-WATCH.............................................21
■■ Description..................................................................21
■■ Operation....................................................................21
2 PANEL DESCRIPTION.....................................................2
■■ Front panel....................................................................2
■■ Function display............................................................5
■■ Softkey function............................................................7
■■ Speaker Microphone.....................................................8
3 PREPARATION................................................................9
■■ Entering the MMSI code...............................................9
■■ Entering the ATIS code
(For Dutch and German version transceivers)............10
5 SCAN OPERATION........................................................19
■■ Scan types..................................................................19
■■ Setting Favorite channels. ..........................................20
■■ Starting a scan............................................................20
7 DSC OPERATION..........................................................22
■■ DSC address ID .........................................................22
■■ Entering position and time..........................................25
■■ Making a Distress call.................................................26
■■ Making DSC calls. ......................................................30
■■ Receiving DSC calls...................................................53
■■ Transmitted Call log....................................................60
■■ Received Call log........................................................61
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viii
TABLE OF CONTENTS (continued)
■■ DSC Settings..............................................................63
■■ Making an Individual call using an AIS transponder...67
12CHANNEL LIST..............................................................91
8 OTHER FUNCTIONS......................................................69
■■ Using the Intercom. ....................................................69
■■ Using the RX Speaker................................................70
■■ Using the PA (Public Address)....................................70
■■ Using the Horn............................................................71
14TEMPLATE.....................................................................93
9 MENU SCREEN OPERATION.......................................72
■■ Using the Menu screen...............................................72
■■ Menu screen items. ....................................................73
■■ Radio Settings items...................................................74
■■ Configuration items.....................................................76
10CONNECTIONS AND MAINTENANCE.........................82
■■ Connections................................................................82
■■ Antenna......................................................................84
■■ Fuse replacement.......................................................84
■■ Cleaning. ....................................................................84
■■ Supplied accessories..................................................84
■■ Mounting the transceiver. ...........................................85
■■ MB-132 installation.....................................................86
■■ Microphone installation...............................................87
11SPECIFICATIONS AND OPTIONS................................89
■■ Specifications. ............................................................89
■■ Options.......................................................................90
ix
13TROUBLESHOOTING....................................................92
INDEX..................................................................................95
OPERATING RULES
DDPriorities
• Read all rules and regulations pertaining to call priorities,
and keep an up-to-date copy handy. Safety and distress
calls take priority over all others.
• You must monitor Channel 16 when you are not operating
on another channel.
• False or fraudulent distress calls are prohibited under law.
1
(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.
DDPrivacy
• Information overheard, but not intended for you, cannot lawfully be used in any way.
• Indecent or profane language is prohibited.
However, non-licensed individuals may talk over a transceiver
if a licensed operator starts, supervises, ends the call and
makes the necessary log entries.
DDRadio licenses
A current copy of the applicable government rules and regulations is only required to be on hand for vessels in which
a radio telephone is compulsory. However, even if you are
not required to have these on hand it is your responsibility to
be thoroughly acquainted with all pertinent rules and regulations.
(1) SHIP STATION LICENSE
You may require a current radio station license before using
the transceiver. It is unlawful to operate a ship station which is
not licensed, but required to be.
If required, contact your dealer or the appropriate government agency for a Ship-Radiotelephone license application.
This government-issued license states the call sign which is
your craft’s identification for radio purposes.
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2
PANEL DESCRIPTION
■■Front panel
Speaker
q
Function display (p. 5)
w
e
r
t
y
u
o
i
qDISTRESS KEY [DISTRESS] (pp. 26, 27)
Hold down for 3 seconds to make a Distress call.
wENTER KEY [ENT] (pp. 9, 12, 72)
Push to set the entered data, selected item, and so on.
eLEFT AND RIGHT KEYS [Ω]/[≈]
➥➥ Push to change to the previous or next key function that
is assigned to the softkeys. (p. 7)
➥➥ Push to select the desired character or number in the
table while in the channel name, position, MMSI code
entry mode, and so on. (pp. 9, 16, 25)
r UP AND DOWN/CHANNEL SELECT KEYS [∫•CH]/[√•CH]
➥➥ Push to select the operating channels, Menu items,
Menu settings, and so on. (pp. 14, 72)
➥➥ While scanning, push to check Favorite channels,
change the scanning direction or manually resume a
scan. (p. 20)
tCLEAR KEY [CLEAR] (pp. 9, 16, 72)
Push to cancel the entered data, or to return to the previous screen.
yMENU KEY [MENU] (p. 72)
Push to enter or exit the Menu screen.
uVOLUME 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 down for 1 second to turn OFF power.
➥➥ When the power is ON, push to enter the volume level
adjustment mode.* (p. 15)
➥➥ Rotate to adjust the volume level.* (p. 15)
2
• Each push of this switch toggles the mode between the volume level adjustment, squelch threshold level adjustment,
operating channel selection, and the LCD and key backlight
brightness adjustment, if assigned.
*The desired function can be assigned in the Menu screen.
PANEL DESCRIPTION
iCHANNEL 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)
oSOFTKEYS
Desired functions as described below can be assigned in
the Menu screen.
Scan [
] (p. 20)
Push to start or stop a Normal or Priority scan.
] (p. 21)
Dualwatch/Tri-watch [
➥➥ Push to start Dualwatch or Tri-watch.
➥➥ Push to stop Dualwatch or Tri-watch when either is activated.
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.
Channel [
]* (p. 11)
Push to select a regular channel.
• “CALL” is displayed when the Call channel is selected.
➥➥ When
the Call channel is selected, hold down for 3 seconds to enter Call channel entry mode. (p. 16)
2
*F
or only IC-M423 and IC-M423G except for Australian version
transceivers.
Public address [
] (p. 70)
Push to enter the PA (Public Address) mode.
] (p. 70)
RX Speaker [
Push to turn the RX Speaker mode ON or OFF.
] (p. 71)
Horn [
Push to enter the Horn mode.
] (p. 69)
Intercom [
Push to enter the Intercom mode.
]* (p. 14)
LO/DX [
Push to turn the Attenuator function ON or OFF.
• “LOCAL” is displayed when the Attenuator function is ON.
*For only U.S.A. and Australian version transceivers.
AquaQuake [
] (p. 18)
Holding down to activate the AquaQuake to clear water
away from the speaker grill.
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16
*For only U.S.A. and Australian version transceivers.
3
2
PANEL DESCRIPTION
■ Front panel (Continued)
Speaker
q
Function display (p. 5)
w
Backlight [
] (p. 18)
Push to enter the LCD and key backlight brightness adjustment mode.
e
r
t
y
u
o
i
Favorite channel [
] (p. 20)
➥➥ Push to set or clear the displayed channel as a Favorite
(Tag) channel.
➥➥ Hold 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.
4
• While in the adjustment mode, push [∫]/[√]/[Ω]/[≈] or rotate Dial
to adjust the brightness of the LCD and key backlight.
Log [
] (p. 61)
Push to enter “RCVD CALL LOG” in the DSC CALLS menu.
PANEL DESCRIPTION
2
■■Function display
q
w e r t y u i o !0
!8
!7
!6
!5
!4
r CHANNEL GROUP ICON (p. 12)
➥➥ Shows which channel group is selected, INT, USA,
CAN, ATIS or DSC, depending on the version.
➥➥ “WX” is displayed when the weather channel is selected.*
!1
!2
!3
q BUSY/TRANSMIT ICON (p. 14)
➥➥ “
” is displayed when receiving a signal or when
the squelch is open.
➥➥ “
” is displayed while transmitting.
w POWER ICON (p. 14)
➥➥ “25W” is displayed when high power is selected.
➥➥ “1W” is displayed when low power is selected.
e RX SPEAKER ICON (p. 70)
Displayed while in the RX Speaker mode.
*For only U.S.A. 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. 61)
Blinks when there is an unread DSC message.
o GPS ICON
➥➥ Stays ON when the built-in GPS receiver* or an external GPS receiver is receiving valid position data.
*For only IC-M423G and IC-M424G.
➥➥ Blinks when searching for valid position data.
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16
!0 SWITCH ICON (p. 64)
Displayed when the “CH 16 SWITCH” in DSC Settings is
set to OFF.
5
2
PANEL DESCRIPTION
■ Function display (Continued)
q
!5 TIME ZONE INDICATOR
➥➥ Shows the current time when GPS data is received, or
the time is manually entered.
w e r t y u i o !0
!8
!7
!6
!5
!4
!1
!2
!3
!1 LOW BATTERY ICON
Blinks when the battery voltage drops to approximately
10 V DC or less.
!2 CHANNEL NUMBER READOUT
Shows the selected operating channel number.
• When a simplex channel is selected, “A” is displayed.
!3 CHANNEL NAME FIELD
The channel name is displayed, if entered. (p. 16)
!4 KEY ICON (p. 7)
Shows the preset function of the softkeys on the front panel.
6
• When the GPS 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 manually entered. The manually entered time is held for only 23.5
hours, and after that, “NO TIME” is displayed.
➥➥ “LOCAL” is displayed when the offset time is set.
➥➥ “MNL” is displayed when the time is manually entered.
➥➥ “UTC” is displayed when the GGA, GLL or GNS GPS
sentence format is included in the GPS signal.
➥➥ The date information is displayed when the RMC GPS
sentence format is included in the GPS signal.
➥➥ “NO TIME” is displayed when no GPS receiver is connected, and no time is manually entered.
NOTE for the IC-M423 and IC-M424:
These models do not come with a built-in GPS receiver.
Therefore an external GPS receiver needs to be connected, or the time needs to be manually entered for
the time zone indicator to be displayed.
PANEL DESCRIPTION
2
■■Softkey function
!6 POSITION INDICATOR
➥➥ Shows
the current position when position data is received, or the position is manually entered.
• When the GPS position is invalid, “??” may blink every 2 seconds instead of position. The last position is held for only
23.5 hours, and after that, “NO POSITION” is displayed.
• “??” will blink every 2 seconds instead of position, after 4 hours
have passed from the time when the position is manually entered. The manually entered position is held for only 23.5 hours,
and after that, “NO POSITION” is displayed.
Various functions can be assigned to the softkeys. When a
key function is assigned, the key icon is displayed above the
softkey, as shown below.
DDSoftkey function selection
hen “Ω” or “≈” is displayed beside the key icon, sequentially
W
pushing [Ω]/[≈] displays the previous or the next key function
that is assigned to the softkey.
➥➥ “NO
POSITION” is displayed when no GPS receiver is
connected, and no position is manually input.
!7 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)
!8 LOCAL ICON* (p. 14)
Displayed when the Attenuator function is turned ON.
Push
Push
*
*Push this key to start
and stop scan.
*For only U.S.A. and Australian version transceivers.
The order of the key icons may differ, depending on the
presetting.
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
7
2
PANEL DESCRIPTION
■■Speaker Microphone
q PTT [PTT]
Hold down to transmit, release to receive. (p. 14)
w CHANNEL UP/DOWN KEYS [Y]/[Z]
Push either key to check Favorite channels, change scanning direction or manually resumes a scan. (pp. 14, 20)
q
e TRANSMIT POWER KEY [H/L]*
➥➥ Push to toggle the power high or low. (p. 14)
Microphone
Speaker
w
r
8
*[HI/LO] is printed for the IC-M423/IC-M424.
rCHANNEL 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)
e
IC-M423G/IC-M424G
• 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)
IC-M423/IC-M424
• The “CALL” icon is displayed when the Call channel is selected.
*For only IC-M423G and IC-M424G.
PREPARATION
3
■■Entering the MMSI code
The 9 digit MMSI (Maritime Mobile Service Identity: DSC self
ID) code can be entered at power ON.
This initial code setting can be made only once.
After being set, it can be changed by only your dealer
or distributor. If your MMSI code has already been entered, the following steps are not necessary.
rrRepeat step e to enter all 9 digits.
ttAfter entering the 9 digit code, “FINISH” is automatically
selected, and then push [ENT] or Dial to set it.
yyThe “MMSI CONFIRMATION” screen is displayed.
qqHold down [PWR](Dial) to turn ON the power.
• Three short beeps sound, and “NO DSC MMSI” is displayed.
wwPush [ENT] to start the MMSI code entry.
• Push [CLEAR] twice to cancel the entry, and go to the normal
operating screen. In this case, the transceiver cannot make a
DSC call. To enter the MMSI code, turn OFF the power, then turn
it ON again.
eeEnter your MMSI code in the following way:
uuEnter your MMSI code again for confirmation.
• Enter in the same way as steps e through t.
iiWhen your MMSI code entry is successfully completed,
the screen as shown below is briefly displayed.
• After that, the normal operating screen is displayed.
• 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 entered MMSI code can be checked in the MENU screen.
(p. 72)
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NOTE: Depending on the transceiver version, the ATIS
code entry may be required after entering the MMSI code.
See the next page for details.
9
3
PREPARATION
■■Entering the ATIS code (For Dutch and German version transceivers)
The 10 digit ATIS (Automatic Transmitter Identification System) code can be entered at power ON.
This initial code setting can be made only once.
After being set, it can be changed by only your dealer
or distributor. If your ATIS code has already been entered, the following steps are not necessary.
qqAfter entered the MMSI code, “Push [ENT] to Register
Your ATIS” is displayed.
wwPush [ENT] to start entering the ATIS code.
• Push [CLEAR] twice to cancel the entry, and go to the normal
operating mode. In this case, the ATIS function is disabled. To
enter the ATIS code, turn OFF the power, then turn it ON again.
eeEnter 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.
rrRepeat step e to enter all 10 digits.
ttAfter entering the 10 digit code, “FINISH” is automatically
selected, and then push [ENT] or Dial to set it.
yyThe “ATIS CONFIRMATION” screen is displayed.
uuEnter your ATIS code again for confirmation.
• Enter in the same manner as steps e through t.
iiWhen your ATIS code is successfully entered, the screen
as shown below is briefly displayed.
• After that, the normal operating screen is displayed.
The entered ATIS code can be checked in the MENU screen.
(p. 72)
10
BASIC OPERATION
4
■■Selecting a Channel
DDChannel 16
DDCall channel
Channel 16 is the distress and safety channel. It is used for
establishing initial contact with a station and for emergency
communications. Channel 16 is monitored during both Dualwatch and Tri-watch. While standing by, you must monitor
Channel 16.
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)
➥➥ Push [16/C] to select Channel 16.
➥➥ Push [CH/WX]* to return to the screen displayed before
you selected Channel 16, or push [Y]/[Z] to select an operating channel.
➥➥ Hold down [16/C] for 1 second to select the Call channel of
the selected channel group.
* [CHAN] is displayed instead of [CH/WX] for the IC-M423/ICM423G except for Australian version.
• “CALL” and the Call channel number is displayed.
• Each channel group has an independent call channel after entry.
(p. 16)
➥➥ Push [CH/WX]* to return to the screen displayed before
you selected Call channels, or push [Y]/[Z] to select an
operating channel.
* [CHAN] is displayed instead of [CH/WX] for the IC-M423/ICM423G except for Australian version.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
11
4
BASIC OPERATION
■ Selecting a Channel (Continued)
DDSelecting the Channel group
There are preset international channels in the IC-M423/ICM423G/IC-M424/IC-M424G. Except for the European versions, you can select a channel group suitable for your operating area, as described below.
qqPush [MENU].
wwRotate Dial or push [∫]/[√] to select “Radio Settings,” and
then push [ENT].
eeRotate Dial or push [∫]/[√] to select “CHAN Group,” and
then push [ENT].
rrRotate Dial or push [∫]/[√] to select the desired channel
group, and then push [ENT].
• U.S.A., (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.
ttPush [EXIT] to exit the Menu screen.
yyPush [∫]/[√] to select a channel.
• Pushing [Y]/[Z] on the microphone selects only Favorite channels.
• “DUP” is displayed when a duplex channel is selected.
• “A” is displayed when a simplex channel is selected.
Channel group icon is displayed
When the U.S.A channel group is selected.
12
BASIC OPERATION
DDSelecting a Weather channel
(For Only U.S.A. and Australian version transceivers)
The transceiver has 10 weather channels. These are used for
monitoring broadcasts from NOAA. (National Oceanographic
and Atmospheric Administration)
The transceiver can automatically detect a weather alert tone
on the selected weather channel, or while scanning. (p. 19)
qqPush [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.
75)
wwPush [∫]/[√] to select a channel.
• Pushing [Y]/[Z] on the microphone also selects a channel.
When weather alert is OFF.
4
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
When weather alert is ON.
13
4
BASIC OPERATION
■■Receiving and transmitting
CAUTION: Transmitting without an antenna will damage
the transceiver.
qqHold down [PWR](Dial) to turn ON the power.
wwSet the audio and squelch levels. (p. 15)
➥➥ First, open the squelch. Then, adjust the audio output
level. After that, adjust the squelch level until the noise
just disappears.
eeChange the channel group. (p. 12)
rrPush [∫]/[√] to select a channel. (pp. 11, 12)
• Pushing [Y]/[Z] on the microphone selects only Favorite channels.
• When receiving a signal, “
” is displayed and audio is
heard.
• Further adjustment of the volume level may be necessary.
ttPush [LO/DX] to turn the receive Attenuator function ON
or OFF, if necessary.
• For only U.S.A. and Australian version transceivers.
• “LOCAL” is displayed when the receive Attenuator function is
ON.
yyPush [HI/LO] to select the output power, if necessary.
14
• Pushing [H/L] or [HI/LO] on the microphone also select the output power.
• “25W” is displayed when high power is selected, and “1W” is
displayed when 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.
uuHold down [PTT] to transmit, then speak at your normal
voice level.
• “
” is displayed.
• Channel 70 cannot be used for transmission other than DSC.
iiRelease [PTT] to receive.
✓✓ Information
The Noise Cancel function reduces random noise components
in the transmit and/or receive signal. See page 78 for details.
Simplex channels, 3, 21, 23, 61, 64, 81, 82, and 83 CANNOT be lawfully used by the general public in U.S.A. waters.
IMPORTANT: To maximize the readability of your transmitted signal, pause a few seconds after pushing [PTT], hold
the microphone 5 to 10 cm (2 to 4 inches) from your mouth
and speak at a normal voice level.
✓✓ NOTE for the TOT (Time-out Timer) function
The TOT function inhibits continuous transmission beyond a
preset time period after the transmission starts.
10 seconds before transmission is cutoff, a beep sounds to
indicate the transmission will be shut down and “TOT” is displayed in the channel name field. Transmission is not possible
for 10 seconds after this shut down.
BASIC OPERATION
4
■■Adjusting the volume and
squelch levels
r
The volume and squelch levels can be adjusted with [VOL/
SQL](Dial).
qqPush [VOL/SQL](Dial) one or more times to display the
volume or squelch adjustment screen.
wwRotate [VOL/SQL](Dial) or push [∫]/[√]/[Ω]/[≈] to adjust
the volume or squelch level.
t
ui
Microphone
y
ui
wq
Microphone
eePush [ENT] to set the level, and exit the volume adjustment mode.
y
r
IC-M423G/IC-M424G
r
• 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.
• Push [CLEAR] to cancel.
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
y
IC-M423/IC-M424
The desired function can be assigned to Dial. See page 77
for details.
15
4
BASIC OPERATION
■■Entering a Call channel data
■■Entering a Channel name
You can enter data in Call channel in each channel group for
quick recall.
Enter a name of up to 10 characters.
Capital letters, 0 to 9, some symbols, (! " # $ % & ' ( ) * + , – .
/ [ \ ] ^ _ : ; < = > ?) and a space can be entered.
qqSelect the desired channel group (INT, USA, CAN, ATIS,
or DSC) to be entered. (p. 12)
wwHold down [16/C] for 1 second to select the Call channel of
the selected channel group.
• “CALL” and the Call channel number is displayed.
eeHold down [16/C] again for 3 seconds (until a long beep
changes to 2 short beeps) to enter the Call channel entry
mode.
rrRotate Dial or push [∫]/[√] to select a channel.
qqPush [∫]/[√](CH) to select a channel.
wwPush [NAME] to open the channel name enter screen.
16
• Push [CLEAR] to cancel.
• A cursor is displayed on the first character.
eeEnter the desired channel name in the following manner:
ttPush [ENT] to save the displayed channel as the Call
channel.
• First, cancel the Dualwatch, Tri-watch or Scan function, if activated.
• Select a desired character using Dial, or [∫]/[√]/[Ω]/[≈].
• Push [ENT] or Dial to set it.
• To move the cursor, select either arrow, “←” or “→,” then push
[ENT] or Dial.
• Push [123], [!$?], or [ABC] to select a character group.
• Select “SPACE,” then push [ENT] to enter a space.
• Select “DELETE,” then push [ENT] to delete a character.
• Push [CLEAR] to cancel and return to the previous screen.
BASIC OPERATION
11
■■Microphone Lock function
rrRepeat step e to input all characters.
The Microphone Lock function electrically locks [∫], [√],
[16/C],*1 and the [H/L]*2 keys on the supplied microphone.
This prevents accidental channel changes and function access.
*1For only IC-M423G and IC-M424G.
*2[HI/LO] is printed for the IC-M423 and IC-M424.
ttPush [Ω]/[≈]/[∫]/[√] to select “FINISH,” then push [ENT] to
set the name and return to the previous screen.
➥➥ 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.
[16/C]
[Y]/[Z]
[H/L]
IC-M423G/IC-M424G
[HI/LO]
IC-M423/IC-M424
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2
3
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5
6
7
8
9
10
11
12
13
14
15
16
17
4
BASIC OPERATION
■■Adjusting the Backlight level
The function display and keys can be backlit for better visibility under low light conditions.
The backlight is adjustable in 7 levels and OFF.
The adjustment method, described below differs depending
on the presetting.
➥➥ Push [BKLT] to show the backlight adjustment screen. Rotate Dial or push [∫]/[√]/[Ω]/[≈] to adjust the brightness of
the LCD and key backlight, and then, push [ENT].
• If no key operation is performed for about 5 seconds, the transceiver
sets the selected backlight level, and returns to the normal mode.
When the Backlight function is assigned to the [VOL/
SQL](Dial):
qqPush [VOL/SQL](Dial) one or more times to display the
backlight adjustment screen.
wwRotate [VOL/SQL](Dial) to adjust the brightness of the
LCD and key backlight, and then, push [ENT].
■■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 sound coming from the speaker. A buzzing sound is heard
when this function is activated.
➥➥ While holding down [AQUA], the AquaQuake function is
activated to clear water away from the speaker grill.
• While holding down [AQUA], a low buzzing sounds to drain water, regardless of the volume level setting.
• The transceiver keys, except [DISTRESS], are disabled while
the AquaQuake function is activated.
When the AquaQuake function is activated.
The desired function can be assigned to Dial. See page 77
for details.
18
SCAN OPERATION
5
■■Scan types
Scanning is an efficient way to locate signals quickly over a
wide frequency range. The transceiver has a Priority scan
and a Normal scan.
When the Weather Alert function* is ON, the weather channel
is also checked while scanning. (p. 75)
Set the Favorite channels (scanned channel) before scanning. Clear the Favorite channels which inconveniently stop
scanning, such as those for digital communication use. (Refer
to the next page for details.)
Choose Priority or Normal scan in the Menu screen. (p. 74)
*For only U.S.A and Australian version transceivers.
NORMAL SCAN
PRIORITY SCAN
CH 01
CH 01
CH 02
CH 02
WX*
WX*
CH 16
CH 03
CH 03
CH 05
CH 05
CH 04
*When the weather alert function is activated.
(For only U.S.A and Australian version transceivers.)
The Priority scan sequentially searches through all Favorite 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.
CH 04
*When the weather alert function is activated.
(For only U.S.A and Australian version transceivers.)
The Normal scan, like the Priority scan, sequentially
searches through all Favorite channels. However, unlike
the Priority scan, Channel 16 is not checked unless it is set
as a Favorite channel.
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
19
5
SCAN OPERATION
■■Setting Favorite channels
■■Starting a scan
For more efficient scanning, add desired channels as Favorite channels, or clear the Favorite on unwanted channels.
Channels that are not tagged will be skipped while scanning.
Favorite channels can be independently assigned to each
channel group (INT, USA, CAN, ATIS, or DSC).
First, set the scan type (Priority or Normal scan) and scan
resume timer in the Menu screen. (p. 74)
qqSelect the desired channel group. (p. 12)
wwSelect the desired channel to be set as a Favorite channel.
ee Push [] to set the displayed channel as a Favorite channel.
• “” is displayed on the display.
qqSelect the desired channel group. (p. 12)
wwSet the Favorite channels, as described to the left.
eeMake sure the squelch is closed to start a scan.
rrPush [SCAN] to start a Priority or Normal scan.
rrTo cancel the Favorite channel setting, repeat step e.
• “” disappears.
✓✓ Clearing (or setting) all Favorite channels
Hold down [] for 3 seconds (until a long beep changes to
2 short beeps) to clear all Favorite channel settings in the
selected channel group.
• Repeat above procedure to set all channels as Favorite channels.
[Example]: Starting a Normal scan.
ttTo stop the scan, push [CLEAR] or repeat step r.
Scan starts.
Push
[SCAN]
20
• “SCAN 16” is displayed during a Priority scan; “SCAN” is displayed during a Normal scan.
• When a signal is detected, the scan pauses until the signal disappears, or resumes after pausing 5 seconds, depending on the
setting. (Channel 16 is still monitored during a Priority scan.)
• Push [Y]/[Z] on either transceiver or microphone, to check the
scanning Favorite channels, change the scanning direction or
manually resume the scan.
• A beep tone sounds and “16” blinks when a signal is received on
Channel 16 during a Priority scan.
When a signal is received.
DUALWATCH/TRI-WATCH
6
■■Description
■■Operation
Dualwatch monitors Channel 16 while you are receiving
on another channel; Tri-watch monitors Channel 16 and the
Call channel while receiving another channel. Dualwatch and
Tri-watch are convenient for monitoring Channel 16 when you
are operating on another channel.
qqSelect Dualwatch or Tri-watch in the Menu screen. (p. 74)
wwPush [Y]/[Z] to select the desired operating channel.
eePush [DW] to start a Dualwatch or Tri-watch scan.
Call channel
Ch 88
Dualwatch
Ch 88
Ch 16
• “DUAL 16” is displayed during Dualwatch; “TRI 16” is displayed
during Tri-watch.
• A beep tone sounds when a signal is received on Channel 16.
rrTo cancel Dualwatch or Tri-watch, push [DW] again.
DUALWATCH/TRI-WATCH SIMULATION
Ch 16
Ch 88
[Example]: Operating Tri-watch on INT Channel 25.
Ch 75
Tri-watch starts.
Signal is received on
Call channel.
Tri-watch resumes after the
signal disappears.
Signal received on Channel
16 takes priority.
Tri-watch
• If a signal is received on Channel 16, Dualwatch and Triwatch pause on Channel 16 until the signal disappears.
• If a signal is received on the Call channel during Tri-watch,
Tri-watch becomes Dualwatch until the signal disappears.
• To transmit on the selected channel during a Dualwatch or
Tri-watch scan, hold down [PTT].
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7
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9
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12
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21
7
DSC OPERATION
■■DSC address ID
DDEntering an Individual ID
A total of 100 DSC address IDs can be entered and assigned
a name of up to 10 characters.
ttAfter entering the 9 digit code, push [ENT] or Dial to set it.
•The ID name entry screen is displayed.
qqEnter “INDIVIDUAL ID” in the DSC SETTINGS menu.
MENU ➪ DSC Settings  ➪ Individual ID
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wwPush [ADD].
• The “INDIVIDUAL ID” entry screen is displayed.
yy Enter a desired 10 digit ID name in the following way:
eeEnter 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 cursor, select either arrow, “←” or “→,” then push
[ENT] or Dial.
The first digit is specified 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.
rrRepeat step e to enter all 9 digits.
22
• 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 push
[ENT] or Dial.
• Push [123], [!$?], or [ABC] to select a character group.
uuAfter entering the ID name, select “FINISH” using Dial, or
[Y]/[Z]/[Ω]/[≈], then push [ENT] or Dial to program it.
• The “INDIVIDUAL ID” list screen is displayed.
iiPush [MENU] to exit the MENU screen.
DSC OPERATION
7
DDEntering a Group ID
qqEnter “GROUP ID” in the DSC SETTINGS menu.
MENU ➪ DSC Settings ➪ Group ID
(Push [MENU].)
(Rotate Dial, then push [ENT].)
ttAfter entering the 9 digit code, push [ENT] or Dial to set it.
• Group ID name entry screen is displayed.
wwPush [ADD].
• The “GROUP ID” entry screen is displayed.
yy Enter a desired 10 digit ID name in the following way:
eeEnter a desired group 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 cursor, select either arrow, “←” or “→,” then push
[ENT] or Dial.
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
• 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 push
[ENT] or Dial.
• Push [123], [!$?], or [ABC] to select a character group.
uuAfter entering the ID name, select “FINISH” using Dial, or
[Y]/[Z]/[Ω]/[≈], then push [ENT] or Dial to save it.
• The “GROUP ID” list screen is displayed.
The first digit is specified 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.
rrRepeat step e to input the specific 9 digits group code.
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9
10
11
12
13
14
15
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iiPush [MENU] to exit the MENU screen.
23
7
DSC OPERATION
■ DSC address ID (Continued)
DDDeleting Individual and Group IDs
qqEnter “INDIVIDUAL ID” or “GROUP ID” in the DSC SETTINGS menu.
MENU ➪ DSC Settings ➪ Individual ID/Group ID
(Push [MENU].)
(Rotate Dial, then push [ENT].)
eePush [OK] to delete the ID, and return to the “INDIVIDUAL
ID” or “GROUP ID” list screen.
• Push [CANCEL] to cancel it.
• When no address ID is entered, “No ID” is displayed. In this case,
push [MENU] to exit the MENU screen.
wwRotate Dial or push [Y]/[Z] to select a desired ID name,
then push [DEL].
rrPush [MENU] to exit the MENU screen.
24
DSC OPERATION
7
■■Entering position and time
A Distress call should include the ship’s position and time.
If no GPS receiver is connected and built-in GPS receiver*
is not receiving valid position data, your position and UTC
(Universal Time Coordinated) time should be manually entered. They are automatically included when a GPS receiver
compatible with the NMEA 0183 (ver. 2.0 or later) format is
connected.
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
*For only IC-M423G and IC-M424G.
• Manual entry is disabled when a GPS receiver is connected.
• Manually entered position and time will be held for only
23.5 hours.
qqEnter “POSITION INPUT” in the DSC SETTINGS menu.
MENU ➪ DSC Settings ➪ Position Input
(Push [MENU].)
(Rotate Dial, then push [ENT].)
eeAfter entering the position, push [ENT] to save it.
rrThe UTC time entry screen is displayed, enter the UTC
time in the following way:
• 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.
wwEnter your latitude and longitude position 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.
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2
3
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5
6
7
8
9
10
11
12
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16
ttPush [ENT] or Dial to program your position and time.
• Return to the “DSC SETTINGS” screen.
25
7
DSC OPERATION
■■Making a Distress call
A Distress call should be made if, in the opinion of the Master,
that the ship or a person is in distress and requires immediate
assistance.
NEVER MAKE A DISTRESS CALL IF YOUR SHIP OR A
PERSON IS NOT IN AN EMERGENCY. A DISTRESS
CALL SHOULD BE MADE ONLY WHEN IMMEDIATE
HELP IS NEEDED.
wwAfter transmitting the call, the transceiver waits for an acknowledgment call.
DDSimple 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 Distress call information.
• Push [Ω]/[≈] then push [PAUSE] to pause the ‘Call repeat’ mode,
push [RESUME] to resume it.
qqWhile lifting up the key cover, hold down [DISTRESS] for 3
seconds to transmit the Distress call.
• While holding down [DISTRESS], count down beeps sound and
both the key and display backlighting blink.
• DSC channel (Channel 70) is automatically selected and the
Distress call is transmitted.
eeAfter receiving the acknowledgment, push [ALARM OFF]
then reply using the microphone.
➥➥ A distress alert default contains:
26
• Nature of distress: Undesignated distress
• Position information: The latest GPS or manually entered position is held for 23.5 hours, or until the power
is turned OFF.
DSC OPERATION
7
DDMaking a Regular call
The nature of the Distress call should be included in the Distress call.
eeThe Distress call confirmation screen is displayed.
• Rotate Dial or push [Y]/[Z] to see the hidden lines.
qqEnter “DISTRESS CALL” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Distress Call
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wwSelect the nature of the distress using Dial or [Y]/[Z], then
push Dial or [ENT].
• ‘Undesignated,’ ‘Fire,Explosion,’ ‘Flooding,’ ‘Collision,’ ‘Grounding,’
‘Capsizing,’ ‘Sinking,’ ‘Adrift,’ ‘Abandoning ship,’ ‘Piracy’ or ‘Man
Overboard’ are selectable.
• The nature of the distress is stored for 10 minutes after selecting.
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
rrHold down [DISTRESS] for 3 seconds to transmit the Distress call.
• While holding down [DISTRESS], count down beeps sound and
both the key and display backlighting blink.
• The selected nature of the distress is stored for 10 minutes.
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8
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DSC OPERATION
■ Making a Distress call (Continued)
ttAfter transmitting the call, the transceiver waits for an acknowledgment 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 Distress call information.
• Push [Ω]/[≈] then push [PAUSE] to pause the ‘Call repeat’ mode,
push [RESUME] to resume it.
When no GPS receiver is connected and built-in GPS receiver* 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 IC-M423G and IC-M424G.
➥➥ Push [CHG], then edit your latitude and longitude position and UTC time.
yyAfter receiving an acknowledgment call, push [ALARM
OFF] then reply using the microphone.
➥➥ A distress alert contains:
28
• Nature of distress: • Position information:
Selected in step w.
The latest GPS or manually entered
position is held for 23.5 hours, or until
the power is turned OFF.
• 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.
DSC OPERATION
DDCanceling a Distress call
qqWhile waiting for an acknowledgment call, push [CANCEL].
7
rrThe Distress cancel call is transmitted.
ttChannel 16 is automatically selected.
wwPush [CONTINUE].
• Push [BACK] to return to waiting for an acknowledgement call.
eePush [FINISH].
• Push [EXIT] to return to waiting for an acknowledgement call.
• Report your situation using the microphone.
• After the report, push [EXIT] to return to the normal operating
mode.
1
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4
5
6
7
8
9
10
11
12
13
14
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29
7
DSC OPERATION
■■Making DSC calls
To ensure correct operation of the DSC function, make
sure you correctly set the CH70 SQL LEVEL. (p. 65)
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 first digit is specified as ‘0’ for a Group ID. If a 9 digit Group ID
is entered, an error beep sounds when pushing [ENT] or dial.
• The first two digits are ‘0’ for any coast station ID.
DDMaking an individual call
The Individual call function allows you to make a DSC call to
only a specific station.
qqEnter “INDIVIDUAL CALL” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Individual Call
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wwSelect a desired preset individual address, or “Manual Input,” using Dial or [Y]/[Z], then push Dial or [ENT].
• The ID 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.
NOTE: When a coast station is selected in step w, the
voice channel is automatically specified by the coast station. Therefore, skip step e and go directly to step r.
30
+ Continued on the next page.
DSC OPERATION
eeSelect a desired intership channel using Dial or [Y]/[Z],
then push [ENT].
uuWhen the acknowledgement ‘Able to comply’ is received,
alarm sounds and the screen below is displayed.
• Confirm the call contents.
ttPush [CALL] to make an Individual call.
yyStandby on Channel 70 until an acknowledgement is received.
• Intership channels are already preset into the transceiver in the
recommended order.
rrA confirmation screen is displayed.
7
• If Channel 70 is busy, the transceiver stands by until the channel
becomes clear.
Push [ALARM OFF] to stop the alarm and then select the
intership channel specified in step e.
• A different intership channel will be selected if the station you
called cannot use the channel.
• Reply using the microphone. And go to step i.
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7
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9
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11
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13
14
15
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31
7
DSC OPERATION
■ Making DSC calls
DD Making an Individual call (continued)
Or, when the acknowledgement ‘Unable to comply’ is received, alarm sounds and the screen below is displayed.
Push [ALARM OFF] to stop the alarm. Then push [EXIT]
to return to the operating channel (before you entered the
MENU screen).
DDMaking 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 on-screen prompts. (Quick
ACK) Also, you can send an acknowledgement through the
MENU system. (Man­ual ACK)
Quick ACK:
qqWhen an Individual call is received, alarm sounds and the
screen below is displayed.
Push [ALARM OFF] to stop the alarm.
wwPush [ACK].
iiAfter communicating, push [EXIT] to return to the normal
operating mode.
✓✓ Tip
When the optional MA-500TR class b ais transponder is
connected to your transceiver, you can make individual DSC
calls to selected AIS targets on the transponder without needing to enter the target’s MMSI code.
See pages 67 and 68 for more details.
32
+ Continued on the next page.
DSC OPERATION
eeSelect one of three options, then push [ENT].
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
• Able to Comply:
Make an acknowledgment call without
any changes.
• Unable to Comply:
You cannot make a communication.
The Acknowledgement call (‘Unable to
Comply’) can be automatically transmitted, if set. See page 63 for details.
• Propose New Channel: You can make an acknowledgement
call, but you specify the intership channel. Select a desired intership channel, using Dial, or [Y]/[Z], then push
[ENT].
rrThe Individual ACK confirmation screen is displayed.
Push [CALL] to make an acknowledgement call.
ttThe screens shown below are displayed.
7
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
yyReply to the call using the microphone.
uuPush [EXIT] to return to the normal operating mode.
33
7
DSC OPERATION
■ Making DSC calls
DD Making an Individual Acknowledgement (continued)
Manual ACK:
qqEnter “INDIVIDUAL ACK” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Individual ACK
(Push [MENU].)
(Rotate Dial, then push [ENT].)
• When no Individual call has been received, the Individual ACK
item will not be displayed.
DDMaking a Group call
The Group call function allows you to make a DSC signal to
only a specific group.
qqEnter “GROUP CALL” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Group Call
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wwSelect a desired preset group address or “Manual Input,”
using Dial or [Y]/[Z], then push Dial or [ENT].
• The ID code for the Group call can be entered first. (p. 22)
• When “Manual Input” is selected, enter the 8 digit ID code for the
group you wish to call.
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
+ Continued on the next page.
wwSelect a desired individual address or ID code to reply to,
using Dial or [Y]/[Z], then push [ENT].
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
eeDo steps e to u, as described in “Quick ACK:,” beginning
on the previous page.
34
DSC OPERATION
eeSelect a desired intership channel using Dial or [Y]/[Z],
then push [ENT].
7
rrA confirmation screen is displayed.
• Confirm the call contents.
• Intership channels are already preset into the transceiver in the
recommended order.
ttPush [CALL] to make a Group call.
• If Channel 70 is busy, the transceiver stands by until the channel
becomes clear.
About Manual Entry:
Enter a desired group 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 first digit is specified 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.
yyAfter the Group call has been transmitted, the following
screen is displayed.
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3
4
5
6
7
8
9
10
11
12
13
14
15
16
uuAnnounce the information using the microphone.
iiAfter the announcement, push [EXIT] to return to the normal operating mode.
35
7
DSC OPERATION
■ Making DSC calls (Continued)
DDMaking an All Ships call
All ships that have DSC transceiver use Channel 70 as their
‘listening channel.’ When you want to announce a message to
these ships, use the ‘All Ships Call’ function.
rrA confirmation screen is displayed.
• Confirm the call contents.
qqEnter “ALL SHIPS CALL” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ All Ships Call
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wwSelect a desired category, using Dial or [Y]/[Z], then push
Dial or [ENT].
ttPush [CALL] to make an All Ships call.
• If Channel 70 is busy, the transceiver stands by until the channel
becomes clear.
• The selectable category may differ, depending on the presetting.
Ask your dealer for the selectable categories.
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
yyAfter the All Ships call has been transmitted, the following
screen is displayed.
eeSelect a desired traffic channel, using Dial or [Y]/[Z], then
push Dial or [ENT].
• The selected channel is displayed.
uuAnnounce the message using the microphone.
iiAfter the announcement, push [EXIT] to return to the normal operating mode.
36
DSC OPERATION
7
DDMaking a Position Request Call
About Manual Entry:
Enter a desired individual ID in the following way:
(For only U.S.A. and Australian version transceivers)
Make a Position Request Call when you want to know a specific ship’s current position, and so on.
• 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.
• The first digit is specified as ‘0’ for a Group ID. If a Group ID is
entered, an error beep sounds after pushing [FINISH].
• The first two digits are ‘0’ for any coast station ID.
qqEnter “POSITION REQUEST” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Position Request
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wwSelect a desired preset individual address, or “Manual Input,” using Dial or [Y]/[Z], then push Dial or [ENT].
• The ID code for the 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.
eeA confirmation screen is displayed.
• Confirm the call contents.
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8
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11
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7
DSC OPERATION
■ Making DSC calls
DD Making a Position Request call (continued)
rrPush [CALL] to make a Position Request Call.
• If Channel 70 is busy, the transceiver stands by until the channel
becomes clear.
ttAfter the Position Request Call has been transmitted, the
following screen is displayed.
yyWhen the acknowledgement call is received, alarm sounds
and the following screen is displayed.
38
uuPush [ALARM OFF] to stop the alarm, and then the screen
as shown below is displayed.
iiPush [EXIT] to return to the normal operating mode.
DSC OPERATION
7
DDMaking a Position Report Call
(For only U.S.A. and Australian version transceivers)
Make a Position Report Call when you want to announce your
own position to a specific ship and receive an answer back.
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 cursor, select either arrow, “←” or “→,” then push
[ENT] or Dial.
• The first digit is specified as ‘0’ for a Group ID. If a Group ID is
entered, an error beep sounds after pushing [FINISH].
• The first two digits are ‘0’ for any coast station ID.
qqEnter “POSITION REPORT” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Position Report
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wwSelect a desired preset individual address, or “Manual Input,” using Dial or [Y]/[Z], then push Dial or [ENT].
• The ID 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.
eeA confirmation screen is displayed.
• Confirm the call contents.
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2
3
4
5
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7
8
9
10
11
12
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14
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39
7
DSC OPERATION
■ Making DSC calls
DD Making a Position Report call (continued)
rrPush [CALL] to make a Position Report Call.
• If Channel 70 is busy, the transceiver stands by until the channel
becomes clear.
When no GPS receiver is connected and built-in GPS receiver* 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 IC-M423G and IC-M424G.
ttAfter the Position Report Call has been transmitted, the
transceiver automatically returns to the normal operating
mode.
➥➥ Push [CHG], then edit your latitude and longitude position
and UTC time.
40
• 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.
DSC OPERATION
7
DDMaking a Polling Request Call
(For only U.S.A. and Australian version transceivers)
Make a Polling Request Call when you want to know a specific vessel is in the communication area, or not.
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 cursor, select either arrow, “←” or “→,” then push
[ENT] or Dial.
• The first digit is specified as ‘0’ for a Group ID. If a Group ID is
entered, an error beep sounds after pushing [FINISH].
• The first two digits are ‘0’ for any coast station ID.
qqEnter “POLLING REQUEST” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Polling Request
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wwSelect a desired preset individual address, or “Manual Input,” using Dial or [Y]/[Z], then push Dial or [ENT].
• The ID 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.
eeA confirmation screen is displayed.
• Confirm the call contents.
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7
8
9
10
11
12
13
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7
DSC OPERATION
■ Making DSC calls
DD Making a Polling Request call (continued)
rrPush [CALL] to make a Polling Request Call.
• If Channel 70 is busy, the transceiver stands by until the channel
becomes clear.
ttAfter the Polling Request Call has been transmitted, the
following screen is displayed.
yyWhen the acknowledgement call is received, alarm sounds
and the following screen is displayed.
42
uuPush [ALARM OFF] to stop the alarm, and then the screen
as shown below is displayed.
iiPush [EXIT] to return to the normal operating mode.
DSC OPERATION
7
DDMaking a Test call
About Manual Entry:
Enter a desired address ID in the following way:
Testing on the exclusive DSC distress and safety calling
channels should be avoided as much as possible. When testing on a distress or safety channel is unavoidable, you should
indicate that these are test transmissions.
Normally the test call would require no further communications between the two stations involved.
• 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 first digit is specified as ‘0’ for a Group ID. If a 9 digit Group ID
is entered, an error beep sounds when pushing [ENT] or dial.
• The first two digits are ‘0’ for any Coast station ID.
qqEnter “TEST CALL” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Test Call
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wwSelect a desired preset individual address, or “Manual Input,” then push Dial or [ENT].
• The ID code for 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.
eeA confirmation screen is displayed.
• Confirm the call contents.
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5
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7
8
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11
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DSC OPERATION
■ Making DSC calls
DD Making a Test call (continued)
rrPush [CALL] to make a Test call.
• If Channel 70 is busy, the transceiver stands by until the channel
becomes clear.
ttAfter the Test call has been transmitted, the following
screen is displayed.
yyWhen the acknowledgement call is received, alarm sounds
and the following screen is displayed.
44
uuPush [ALARM OFF] to stop the alarm, and then the screen
as shown below is displayed.
iiPush [EXIT] to return to the normal operating mode.
DSC OPERATION
DDMaking a Test Acknowledgement call
When the “TEST ACK” in DSC settings is set to ‘Auto TX’
(p. 63), the transceiver automatically transmits a reply call
when a Test call is received.
7
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.
Quick ACK:
qqWhen a Test call is received, alarm sounds and the screen
shown below is displayed.
Push [ALARM OFF] to stop the alarm.
eeThe Test ACK confirmation screen is displayed.
Push [CALL] to make an acknowledgement call.
wwPush [ACK].
• Push [EXIT] to return to the normal operating mode.
• Push [INFO] to display the Test call information.
rrWhile transmitting the acknowledgement call, the screen
shown below is displayed, and then returns to the normal
operating mode.
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5
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7
8
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DSC OPERATION
■ Making DSC calls
DD Making a Test Acknowledgement call (continued)
Manual ACK:
qqEnter “TEST ACK” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Test ACK
(Push [MENU].)
(Rotate Dial, then push [ENT].)
eeThe Test ACK confirmation screen is displayed.
Push [CALL] to make an acknowledgement call.
• If no Test call has been received, the “TEST ACK” item will not
be displayed.
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
rrWhile transmitting the acknowledgement call, the screen
shown below is displayed, and then returns to the normal
operating mode.
wwSelect a desired Test call to reply to, using Dial or [Y]/[Z],
then push Dial or [ENT].
46
DSC OPERATION
7
DDMaking a Position Reply call
Make a Position Reply call when a Position Request call is
received.
When the “POSITION ACK” in DSC Settings is set to ‘Auto
TX’ (p. 63), the transceiver automatically transmits a reply call
when a Position Request call is received.
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.
Quick Reply:
qqWhen a Position Request call is received, alarm sounds
and the screen shown below is displayed.
Push [ALARM OFF] to stop the alarm.
eeThe Position Reply confirmation screen is displayed.
Push [CALL] to make a reply call.
wwPush [ACK].
• Push [EXIT] to return to the normal operating mode.
• Push [INFO] to display the Test call information.
rrWhile transmitting the reply call, the screen shown below
is displayed, and then returns to the normal operating
mode.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
47
7
DSC OPERATION
■ Making DSC calls
DD Making a Position Reply call (continued)
Manual Reply:
qqEnter “POSITION REPLY” in the DSC CALLS menu.
rrWhile transmitting the reply call, the screen shown below
is displayed, and then returns to the normal operating
mode.
MENU ➪ DSC Calls ➪ Position Reply
(Push [MENU].)
(Rotate Dial, then push [ENT].)
• If no Position Request call is received, the Position Reply item
will not be displayed.
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
When no GPS receiver is connected and built-in GPS receiver* 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 IC-M423G and IC-M424G.
wwSelect a desired Position Request call to reply to, using
Dial or [Y]/[Z], then push Dial or [ENT].
eeThe Position Reply call confirmation screen is displayed.
Push [CALL] to make an acknowledgement call.
➥➥ Push [CHG], then edit your latitude and longitude position
and UTC time.
48
• 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.
DSC OPERATION
DDMaking a Position Report Reply call
Make a Position Report Reply call when a Position Report
call is received.
7
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.
Quick Reply:
qqWhen a Position Report call is received, alarm sounds and
the screen as shown below is displayed.
Push [ALARM OFF] to stop the alarm.
eeThe Position Report Reply confirmation screen is displayed.
Push [CALL] to make a reply call.
wwPush [ACK].
• Push [EXIT] to return to the normal operating mode.
• Push [INFO] to display the Position Report Request call information.
rrWhile transmitting the reply call, the screen shown below
is displayed, and then returns to the normal operating
mode.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
49
7
DSC OPERATION
■ Making DSC calls
DD Making a Position Report Reply call (continued)
Manual Reply:
qqEnter “REPORT REPLY” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Position Report Reply
(Push [MENU].)
(Rotate Dial, then push [ENT].)
eeThe Position Report Reply call confirmation screen is displayed.
Push [CALL] to make an acknowledgement call.
• If no Position Report Request call is received, the Position Report Reply item will not be displayed.
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
rrWhile transmitting the reply call, the screen shown below
is displayed, and then returns to the normal operating
mode.
wwSelect a desired Position Report Request call to reply to,
using Dial or [Y]/[Z], then push Dial or [ENT].
50
DSC OPERATION
DDMaking a Polling Request Reply call
Make a Polling Request Reply call when a Polling Request
call is received.
When the “POSITION ACK” in DSC Settings is set to ‘Auto
TX’ (p. 63), the transceiver automatically transmits a reply call
when receiving a Polling Request call.
Quick Reply:
qqWhen a Polling Request call is received, alarm sounds
and the screen as shown below is displayed.
Push [ALARM OFF] to stop the alarm.
wwPush [ACK].
• Push [EXIT] to return to the normal operating mode.
• Push [INFO] to display the Polling Request call information.
7
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.
eeThe Polling Request Reply confirmation screen is displayed.
Push [CALL] to make a reply call.
rrWhile transmitting the reply call, the screen shown below
is displayed, and then returns to the normal operating
mode.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
51
7
DSC OPERATION
■ Making DSC calls
DD Making a Polling Request Reply call (continued)
Manual Reply:
qqEnter “POLLING REPLY” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Polling Reply
(Push [MENU].)
(Rotate Dial, then push [ENT].)
eeThe Polling Request Reply call confirmation screen is displayed. Push [CALL] to make an acknowledgement call.
• If no Polling Request call is received, the Polling Reply item will
not be displayed.
• Push [EXIT] to return to the normal operating mode.
• Push [BACK] to return to the previous screen.
rrWhile transmitting the reply call, the screen shown below
is displayed, and then returns to the normal operating
mode.
wwSelect a desired Polling Request call to be replied, using
Dial or [Y]/[Z], then push Dial or [ENT].
52
DSC OPERATION
7
■■Receiving DSC calls
DDReceiving
a Distress Call/Distress Acknowledgement
[Example]: Receiving a Distress Call.
When a Distress Call is received:
➥➥ The emergency alarm sounds for 2 minutes.
➥➥ “RCVD DISTRESS” is displayed and the backlight blinks.
qqPush [ALARM 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.
wwPush a softkey to select
your desired action.
[IGN]
➥➥ Push to return to the normal operating mode.
[INFO]
➥➥Push to display the Received call information.
(p. 61)
[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 operating channel automatically changes to
Channel 16. (p. 64)
Push
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
• The transceiver exits the DSC mode.
• By pushing [PTT], the transceiver also exits the DSC mode.
• “
” continues to blink and the Call is stored in the Received
Call Log.
53
7
DSC OPERATION
■ Receiving DSC calls (Continued)
DDReceiving a Distress Relay Call/Distress Relay Acknowledgement
[Example]: Receiving a Distress Relay call.
When a Distress Relay call is received:
➥➥ The emergency alarm sounds for 2 minutes.
➥➥ “RCVD DISTRESS RELAY” is displayed and the backlight
blinks.
[INFO]
➥➥ Push to display the Received call information.
(p. 61)
qqPush [ALARM 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.
wwPush a softkey to select
your desired action.
[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.
[IGN]
➥➥ Push to return to the normal operating mode.
54
• The transceiver exits the DSC mode.
• By pushing [PTT], the transceiver also exits the DSC mode.
• “
” continues to blink and the Call is stored in the Received
Call Log.
• Even if you haven’t pushed
[CH 16] within 10 seconds,
the operating channel automatically changes to
Channel 16. (p. 64)
Push
DSC OPERATION
7
DDReceiving an Individual Call
When an Individual Call is received:
➥The alarm sounds for 2 minutes.
➥➥ “RCVD INDIVIDUAL CALL” is displayed. The backlight may
blink for 2 minutes, depending on the received Category.
qqPush [ALARM 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.
[IGN]
➥➥ Push to ignore the Call and return to the 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. 61)
[ACK]
➥➥ Push to display the “INDIVIDUAL ACK” screen to reply
to the Call. Select one of three options, depending on
your situation. See page 32 for details of the Individual
Acknowledgement procedures.
wwPush a softkey to select your desired action.
When “INDIVIDUAL ACK” is set to “Auto TX (Unable),” the
transceiver automatically replies to the Call. In that case,
both the TX and RX calls are stored in the Transmitted and
Received Call Logs.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
55
7
DSC OPERATION
■ Receiving DSC calls (Continued)
DDReceiving a Group Call/Geographical Area Call/All Ships Call
When a Group Call, Geographical Area Call, or All Ships Call
is received:
➥➥ The alarm sounds for 2 minutes.
➥➥ “RCVD GROUP CALL,” “RCVD GEOGRAPHICAL,” or
“RCVD ALL SHIPS CALL” is displayed. The backlight may
blink for 2 minutes, depending on the received Category.
qqPush [ALARM 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.
[IGN]
➥➥ Push to ignore the Call and return to the 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. 61)
[ACPT]
➥➥ Push to monitor the channel specified by the calling
station for an announcement from the calling station.
wwPush a softkey to select your desired action.
Note for Geographical Area Call
When no GPS receiver is connected or if there is a problem with the external receiver, all Geographical Area Calls
are received, regardless of your position.
56
DSC OPERATION
7
DDReceiving a Position Request Call
When a Position Request Call is received:
➥The alarm sounds for 2 minutes.
➥“RCVD POS REQUEST” is displayed. The backlight blinks
for 2 minutes.
qqPush [ALARM 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.
[IGN]
➥ Push to ignore the Call and return to the 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. 61)
[ACK]
➥P
ush to display the “POSITION REPLY” screen and
send a reply to the Call. (p. 47)
wwPush a softkey to select your desired action.
When “POSITION ACK” is set to “Auto TX,” the transceiver
automatically replies to the Call. In that case, both the TX
and RX calls are stored in the Transmitted and Received
Call Logs.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
57
7
DSC OPERATION
■ Receiving DSC calls (Continued)
DDReceiving a Position Report Call
When a Position Report Call is received:
➥The alarm sounds for 2 minutes.
➥“RCVD POSITION REPORT” is displayed. The backlight
blinks for 2 minutes.
qqPush [ALARM 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.
wwPush a softkey to select your desired action.
58
[EXIT]
➥ Push to ignore the Call and return to the 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. 61)
DSC OPERATION
DD Receiving a Polling Request call/Test Call
[Example]: Receiving a Polling Request call.
When a Polling Request call is received:
➥➥ The alarm sounds for 2 minutes.
➥➥ “RCVD POLLING REQUEST” is displayed. The backlight
blinks for 2 minutes.
qqPush [ALARM 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.
7
[IGN]
➥➥ Push to ignore the Call and return to the 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. 61)
[ACK]
➥➥ Push to display the “POLLING REPLY” screen to reply
to the Call. (p. 51)
wwPush a softkey to select your desired action.
When “POSITION ACK” or “TEST ACK” is set to “Auto TX,”
the transceiver automatically replies to the Call. In that
case, both the TX and RX calls are stored in the Transmitted and Received Call Logs.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
59
7
DSC OPERATION
■ Receiving DSC calls (Continued)
■■Transmitted Call log
When a Test Acknowledgement Call is received:
➥➥ The alarm sounds for 2 minutes.
➥➥ “RCVD TEST ACK” is displayed. The backlight blinks for
2 minutes.
The transceiver automatically stores up to 50 transmitted
calls, and the logs can be used as a supplement to your logbook.
DDReceiving a Test Acknowledgement Call
qqPush [ALARM 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.
qqEnter “TX CALL LOG” in the DSC CALLS menu.
MENU ➪ DSC Calls ➪ Transmitted Call Log
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wwPush [Y]/[Z] to select the desired item, then push [ENT].
• Push [BACK] to return to the previous screen.
• Push [EXIT] to return to the normal operating mode.
wwPush a softkey to select your desired action.
eeRotate Dial to scroll the DSC message contents.
Rotate
[EXIT]
➥➥ Push
to return to the normal operating mode.
60
• The transceiver exits the DSC mode.
• “
” continues to blink and the Call is stored in the Received
Call Log.
rrTo delete the displayed DSC message, push [DEL].
• The confirmation screen is displayed, then push [OK] to delete.
ttPush [EXIT] to return to the normal operating mode.
DSC OPERATION
7
■■Received Call log
The transceiver automatically stores up to 50 distress messages and 50 other messages, and they can be used as a
supplement to your logbook.
eePush [Y]/[Z] to select the desired item, then push [ENT].
• While in the normal operating mode, “
” blinks in the upper right
corner of the LCD when there is an unread DSC message.
DDDistress message
qqPush [LOG] to enter “RCVD CALL LOG” in the DSC CALLS
menu, or you can enter it through the Menu screen.
MENU ➪ DSC Calls ➪ Received Call Log
(Push [MENU].)
rrRotate Dial to scroll the DSC message contents.
Rotate
(Rotate Dial, then push [ENT].)
wwPush [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.
ttTo delete the displayed DSC message, push [DEL].
• The confirmation screen is displayed, then push [OK] to delete.
yyPush [EXIT] to return to the normal operating mode.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
61
7
DSC OPERATION
■ Received Call log (Continued)
DDOther messages
qqPush [LOG] to enter “RCVD CALL LOG” in the DSC CALLS
menu, or you can enter it through the Menu screen.
MENU ➪ DSC Calls ➪ Received Call Log
(Push [MENU].)
rrRotate Dial to scroll the DSC message contents.
(Rotate Dial, then push [ENT].)
• The stored message has various information, depending on the
DSC call type.
Rotate
wwPush [Y]/[Z] to select “Others,” then push [ENT].
• The messages other than the Distress are stored in “Others.”
•“
” 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.
eePush [Y]/[Z] to select the desired item, then push [ENT].
62
• The message in the unopened file has not been read.
ttTo delete the displayed DSC message, push [DEL].
• The confirmation screen is displayed, then push [OK] to delete.
yyPush [EXIT] to return to the normal operating mode.
DSC OPERATION
7
■■DSC Settings
D Position Entry (See page 25)
D Add Individual ID/Group ID (See pages 22, 23)
D Delete Individual ID/Group ID (See page 24)
wwRotate Dial to select “Auto TX” or “Manual TX,” then push
[ENT].
• Push [BACK] to cancel and return to the DSC Settings menu.
D Automatic Acknowledgement
These items set the Automatic Acknowledgement function to
“Auto TX” or “Manual TX.”
When an Individual, Position Request, Polling Request, or
Test Call is received, the transceiver automatically transmits
an Individual Acknowledgement, Position Reply, Polling Reply or Test Acknowledgement Call, respectively.
(default)
When “INDIVIDUAL ACK” is set to “Auto TX,” the transceiver automatically transmits the Acknowledgment call
including “Unable to Comply” (No Reason Given) after receivng the Individual call.
(default)
qqEnter
either “INDIVIDUAL ACK,” “POSITION ACK” or “TEST
ACK” in the DSC Settings menu.
MENU ➪ DSC Settings ➪ Position ACK
(default)
MENU ➪ DSC Settings ➪ Individual ACK
(Push [MENU].) (Rotate Dial, then push [ENT].)
MENU ➪ DSC Settings ➪ Test ACK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
eePush [EXIT] to return to the normal operating mode.
63
7
DSC OPERATION
■ DSC Settings (Continued)
D Channel 16 Switch function
By regulation, after receiving a Distress call, the transceiver changes the operating channel to Channel 16. However,
when this setting is set to “OFF,” the function enables the
transceiver to remain on the operating channel, even after
receiving a Distress call.
qEnter “CH 16 SWITCH” in the DSC Settings menu.
MENU ➪ DSC Settings ➪ CH 16 Switch
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wRotate Dial or push [Y]/[Z] to set the Channel 16 Switch
function to “Auto (No Delay),” “10 Second Delay,” or “OFF,”
then push [ENT].
• Push [BACK] to return to the previous screen.
(default)
64
Auto (No Delay): A
fter receiving a Distress call, and
[ACPT] is pushed on the confirmation
screen, the transceiver immediately
changes to Channel 16.
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 seconds. After that, the transceiver automatically changes to Channel 16. (default)
OFF:
Even after receiving a Distress call, the
transceiver remains on the operating
channel.
• “ ” is displayed.
eePush [EXIT] to return to the normal operating mode.
DSC OPERATION
7
D Alarm
D Channel 70 Squelch level
Set the Alarm function ON or OFF, depending on the Category or Status.
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.
qEnter “ALARM” in the DSC Settings menu.
MENU ➪ DSC Settings ➪ Alarm
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wRotate Dial or push [Y]/[Z] to select the status, then push
[ENT].
• Push [BACK] to return to the previous screen.
• “Safety,” “Routine,” “Warning,” “Self-Terminate” and “Discrete” are
selectable. (default: ON )
qEnter “CH 70 SQL LEVEL” in the DSC Settings menu.
MENU ➪ DSC Settings ➪ CH 70 SQL Level
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wRotate Dial or push [Y]/[Z] to adjust the squelch level until
the noise just disappears, then push [ENT].
• Push [BACK] to cancel and return to the DSC Settings menu.
(default)
eeRotate Dial or push [Y]/[Z] to set the Alarm setting to “ON”
or “OFF.”
rrPush [EXIT] to return to the normal operating mode.
eePush [EXIT] to return to the normal operating mode.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
65
7
DSC OPERATION
■ DSC Settings (Continued)
D DSC Loop Test
The DSC loop test function sends transmit DSC signals to
the receive AF circuit to compare and check the TX and RX
signals at the AF level.
qEnter “DSC LOOP TEST” in the DSC Settings menu.
MENU ➪ DSC Settings ➪ DSC Loop Test
(Push [MENU].)
(Rotate Dial, then push [ENT].)
wPush [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.
eePush [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 transceiver to your nearest dealer for repair.
66
DSC OPERATION
7
■■Making an Individual call using an AIS transponder
When the optional MA-500TR CLASS B AIS TRANSPONDER is connected to your transceiver, an individual DSC call
can be transmitted to a selected AIS target, without needing
to enter the target’s MMSI code. In this case, the call type is
automatically set to Routine.
See page 83 for connecting instructions.
To ensure correct operation of the DSC function, make
sure you correctly set the CH70 SQL LEVEL. (p. 65)
Step 1: Transponder’s operation
qqSelect a desired AIS target on the plotter, target list or danger list display.
• You can also go to the next step whenever the detail screen of
the AIS target is displayed.
• Make sure the transceiver is in the normal operating mode. Otherwise, you cannot make an individual DSC call using the transponder.
Transponder’s display
Transceiver’s display
eePush [DSC] to make an individual DSC call to the AIS target.
• If Channel 70 is busy, the transceiver stands by until the channel
becomes clear.
• If the transceiver cannot make the call, the transponder will display “DSC Transmission FAILED.”
wwPush [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 recommended order.
*When a coast station is selected in step q, a voice channel will
be specified by the coast station, therefore you cannot change
the channel. The transponder will display “Voice Channel is
specified by the Base station,” in this case.
Transponder’s display
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Transceiver’s display
67
7
DSC OPERATION
■ Making an Individual call using an AIS transponder (Continued)
rrAfter making the individual DSC call, the transponder will
display “DSC Transmission COMPLETED.”
‘Able to comply’ is received
• Push [CLEAR] to return to the screen displayed before you entered the voice channel selection screen in step w.
• The transceiver stands by on Channel 70 until an acknowledgement is received.
‘Unable to comply’ is received
Transponder’s display
Transceiver’s display
Step 2: Transceiver’s operation
ttWhen the acknowledgement is received, alarm sounds.
➥➥ If the acknowledgement ‘Able to comply’ is received,
push [ALARM OFF] to stop the alarm, and then select
the intership channel specified in step w.
[Y]
[Z]
[CLEAR]
• 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 “INDIVIDUAL CALL FAILED” is displayed.
68
yyAfter
the communication is finished, push [EXIT] to return
to the normal operating mode.
[DSC]
TRANSPONDER
OTHER FUNCTIONS
8
■■Using the Intercom
The optional Intercom function allows you to talk between the
radio and the where the Command microphone is located.
The optional HM-195 command microphone is required for
Intercom operation.
Connect the HM-195 command microphone as described on
page 87.
While using the intercom:
• Transmitting is disabled.
• Received audio is muted.
qqHold down [PWR](Dial) to turn ON the power.
• The command microphone power is automatically turned ON,
even if the mic power is OFF.
wwPush [INCM] to enter the Intercom mode.
rrAfter 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 displayed on the listener’s display.
• Rotate dial to adjust the transceiver’s intercom volume level.
• Rotate [VOL/SQL](Dial) on the HM-195 to adjust the HM-195’s
intercom volume level, .
ttAfter releasing [PTT], you can hear the response through
the speaker.
On the caller’s display
On the listener’s display
eeHold down [INCM CALL] to sound the intercom beeps.
• The transceiver and the command microphone sound beeps
while holding down [INCM CALL].
• “CALL” is displayed.
yyPush
[EXIT] to return to the normal operating mode.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
While in the Intercom mode, the transmit and receive functions are disabled. When the transceiver is transmitting,
the Intercom function is disabled.
69
8
OTHER FUNCTIONS
■■Using the RX Speaker
■■ Using the PA (Public Address)
The RX Speaker function enables you to hear the received
audio through a PA speaker.
Connect a PA speaker as described on page 82.
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% distortion with a 4 ˘ load, as described on page 82.
• Transmitting is disabled while in the PA mode.
qqPush [RX
] to enter the RX Speaker mode.
• The RX Speaker volume level adjustment screen is displayed.
qqPush [PA] to enter the Public Address mode.
wwRotate Dial or push [Y]/[Z]/[Ω]/[≈] to adjust the RX Speaker volume level, and then push [ENT].
• “RX
” is displayed.
eePush
[RX
• “RX
wwHold down [PTT] and speak at your normal voice level.
• While holding down [PTT], the screen below is displayed.
• Rotate Dial or push [Y]/[Z]/[Ω]/[≈] to adjust the PA volume level.
] to return to the normal operating mode.
” disappears.
eePush [EXIT] to return to normal operating screen.
To adjust the audio output level in the RX Speaker mode,
hold down [RX ] for 1 second to display the RX Speaker
volume level adjustment screen, and then rotate Dial. After
adjusting, push [ENT] to set it.
70
While in the PA mode, the transmit and receive functions
are disabled. When the transceiver is transmitting, the PA
function is disabled.
OTHER FUNCTIONS
■■Using the Horn
The Horn function sounds a horn.
Connect a PA speaker as described on page 82.
qqPush [HORN] to enter the Horn mode.
wwHold 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.
eePush [EXIT] to return to the normal operating screen.
8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
While in the Horn mode, the transmit and receive functions
are disabled. When the transceiver is transmitting, the
Horn function is disabled.
71
9
MENU SCREEN OPERATION
■■Using the Menu screen
The Menu screen is used for entering infrequently changed
values, function settings or making DSC calls.
In addition to this page, see pages 73 through 81 for details.
DD Entering
the Menu screen
Example: Set the channel group to “USA”
qqPush [MENU].
wwRotate Dial or push [∫]/[√] to select
the root item (Radio Settings), and
then push [ENT].
Menu lists
[Y]/[Z]
[ENT]
• If [∫] or [√] is continuously held down,
the items are sequentially highlighted.
eeRotate Dial or push [∫]/[√] to select “CHAN Group,” and then push
[ENT].
rrRotate Dial or push [∫]/[√] to select
“USA,” and then push [ENT] to set it.
• “✔” is displayed next to “USA.”
ttPush
[EXIT] to exit the Menu screen.
[EXIT] [BACK] [ENT]
Dial [CLEAR]
[MENU]
72
• Push [CLEAR] or [BACK] to return to
the previous screen.
9
MENU SCREEN OPERATION
DDRadio Settings
■■Menu screen items
Item
The Menu screen contains the following items.
• Scan Type
• Scan Timer
• Dual/Tri-Watch
DDDSC Calls
Item
• Individual Call
• Individual ACK*1
• Group Call
• All Ships Call
• Distress Call
• Received Call Log
Ref.
p. 30
p. 32
p. 34
p. 36
p. 26
p. 61
Item
• Transmitted Call Log
• Position Request*2
• Position Report*2
• Polling Request*2
• Test Call
• Test ACK*1
Item
Ref.
p. 25
p. 22
p. 23
p. 63
p. 63
Item
• Test ACK
• CH 16 Switch
• Alarm
• CH 70 SQL Level
• DSC Loop Test
*1 Displayed only after receiving a corresponding call.
*2 For only U.S.A and Australian version transceivers.
*3 Displayed only when no GPS information is received.
*4 Displayed only when the optional HM-195 is connected.
p. 74
p. 74
p. 74
Item
• CHAN Group
• WX Alert*2
Ref.
p. 74
p. 75
Ref.
p. 60
p. 37
p. 40
p. 41
p. 43
p. 45
DDDSC Settings
• Position Input*3
• Individual ID
• Group ID
• Individual ACK
• Position ACK
Ref.
Ref.
p. 63
p. 64
p. 65
p. 65
p. 66
DDConfiguration
Item
• Backlight
• Display Contrast
• Key Beep
• Key Assignment
• UTC Offset
Ref.
Item
p. 76
p. 76
p. 76
p. 76
p. 78
• Noise Cancel
• Inactivity Timer
• NMEA Output
• Remote ID
• COMMANDMIC SP*4
Ref.
p. 78
p. 79
p. 80
p. 81
p. 81
DDMMSI/GPS Info
The transceiver shows the preset MMSI and ATIS*5 codes
and GPS information*6.
If the code is not entered, “NO DSC MMSI” or “NO ATIS
MMSI”*5 is displayed.
*5 Displayed only for the Dutch and German version transceivers.
*6 Displayed only when an external or the built-in GPS receiver is
receiving valid position data.
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Rotate
73
9
MENU SCREEN OPERATION
■■Radio Settings items
DDScan type
DDDual/Tri-watch
The transceiver has two scan types, Normal scan and Priority scan. A Normal scan searches all Favorite channels in the
selected channel group. A Priority scan sequentially searches
all Favorite channels, while monitoring Channel 16.
This item can be selected as Dualwatch or Tri-watch. (p. 21)
(Default: Dualwatch)
• The default setting is different depending on the transceiver versions.
DDChannel Group
DDScan 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. (Default: OFF)
• Priority scan
• Normal scan
74
hen ON is selected, the scan pauses for 5 secW
onds and then resumes, even if a signal has been
received on any channel other than Channel 16.
When ON is selected, the scan pauses for 5
seconds and then resumes, even if a signal has
been received on any channel.
Except for the European version, a channel group suitable
for your operating area can be selected. Depending on the
transceiver version, INT, USA, CAN, ATIS, or DSC may be
selectable.
See page 12 for details.
• The screen below shows the U.S.A version.
MENU SCREEN OPERATION
DDWeather alert
(For only U.S.A. and Australian version transceivers)
A NOAA broadcast station transmits a weather alert tone before important weather information.
After the transceiver detects the alert, “WX
” blinks until the
transceiver is operated.
• “WX
” displayed instead of “WX” when the function is set ON.
(Default: OFF)
ON with Scan: The preset weather channels are sequentially
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.
9
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
75
9
MENU SCREEN OPERATION
■■Configuration items
DDBacklight
DDKey Assignment
The function display and keys can be backlit for better visibility under low light conditions.
The backlight can be set to 7 levels and OFF. (Default: 7)
Desired functions can be assigned to Dial and the softkeys.
qqWhen the “KEY ASSIGNMENT” screen is displayed, rotate
Dial or push [∫]/[√] to select “Dial” or “Softkeys,” and then
push [ENT].
wwRotate Dial or push [∫]/[√] to select the desired position,
and then push [ENT].
• To return to the default, select “Set default” and push [ENT].
DDDisplay contrast
This item adjusts the contrast of the LCD in 8 steps.
Level 1 is the lowest contrast, and level 8 is the highest contrast. (Default: 5)
For “Dial” assignment
For “Softkeys” assignment
eeRotate Dial or push [∫]/[√] to select the option, and then
push [ENT] to set it.
• “✔” is displayed next to the selected option.
DDKey Beep
You can turn OFF beep tones for silent operation, or you can
turn ON the tones to have confirmation beeps sound when a
key is pushed. (Default: ON)
For “Dial” assignment
76
For “Softkeys” assignment*
* [CHAN] is displayed instead of [CH/WX] for the IC-M423 and
IC-M423G except for Australian version.
MENU SCREEN OPERATION
rrPush [EXIT] to exit the Menu screen.
• Push [CLEAR] or [BACK] to return to the previous screen.
• Dial assignment
The Audio volume (VOL), squelch (SQL), channel selection
(CHAN), and LCD backlight level (Backlight) functions can be
assigned to any one of 4 sequential positions on Dial. Pushing Dial 1 to 4 times sequentially selects the desired function, and rotating Dial adjusts the level or selects a value or
number.
For example:
- VOL is assigned the 1st position, and pushing Dial once
selects VOL. The VOL screen adjust screen 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 rotating 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.
9
• Softkeys assignment
The desired function can be assigned as the softkey function. The assigned function can be used when its key icon is
displayed.
See page 3 through 4 for details of the assignable key functions.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Repeatedly pushing Dial sequentially displays all the functions in the order they are assigned, and skips any functions
assigned as Not Used.
* [CHAN] is displayed instead of [CH/WX] for the IC-M423 and ICM423G except for Australian version.
77
9
MENU SCREEN OPERATION
■ Configuration items (Continued)
DDUTC Offset
Set the offset time between the UTC (Universal Time Coordinated) and your local time to between –14:00 and +14:00 (in
1 minute steps). (Default: 00:00)
DDNoise Cancel
Set the Noise Cancel function for both receive and transmit.
• RX
Turn the receive Noise Cancel function ON or OFF.
OFF: Turns OFF the function. (Default)
1 : The Noise Cancel function reduces random noise components in the received signal to approximately one
half.
2 : The Noise Cancel function reduces random noise components in the received signal to approximately one
third.
3 : The Noise Cancel function reduces random noise components in the received signal to approximately one
tenth.
qqWhen
the “NOISE CANCEL” screen is displayed, rotate Dial
or push [∫]/[√] to select “RX” or “TX,” and then push [ENT].
wwRotate Dial or push [∫]/[√] to select the option, and then
push [ENT] to set it.
• “✔” is displayed next to the selected option.
eePush [EXIT] to exit the Menu screen.
78
• Push [CLEAR] or [BACK] to return to the previous screen.
• TX
Turn the transmit Noise Cancel function ON or OFF.
OFF: Turns OFF the function. (Default)
ON : The Noise Cancel function reduces random noise components in the transmitted signal to one third.
MENU SCREEN OPERATION
DDInactivity Timer
Set the inactivity timer to between 1 and 10 minutes (in 1
minute steps) or OFF for a “Not DSC Related” item, and set
it to between 1 and 15 minutes (in 1 minute steps) or OFF
for a “DSC Related” item. The count down alarm sounds 10
seconds before the Inactive timer returns the current screen
to the normal operating screen.
qqWhen the “INACTIVITY TIMER” screen is displayed, rotate
Dial or push [∫]/[√] to select “Not DSC Related” or “DSC
Related,” and then push [ENT].
wwRotate Dial or push [∫]/[√] to select the option, and then
push [ENT] to set it.
• “✔” is displayed next to the selected option.
eePush [EXIT] to exit the Menu screen.
• Push [CLEAR] or [BACK] to return to the previous screen.
9
• Not DSC Related
When the LCD displays a screen other than the normal operation screen, or one not related to the DSC, and no key operation occurs for this set period, the transceiver automatically
returns to the normal operating screen.
(Default: 10 min)
• DSC Related
When the LCD displays the screen related to DSC, and no key
operation occurs for this set period, the transceiver automatically
returns to the normal operating screen.
(Default: 15 min)
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
79
9
MENU SCREEN OPERATION
■ Configuration items (Continued)
DDNMEA Output
Select the Data Output function option for a NMEA output
port.
• POS data output (Default: OFF)
When receiving position data from an external or the built-in
GPS receiver,* this function sends the data from the NMEA
Output port to an external device.
*For only IC-M423G and IC-M424G.
80
• DSC data output
(Default: OFF)
When receiving a DSC call, this function makes the transceiver 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 ID screen.
OFF:Does not output any call to an external device.
MENU SCREEN OPERATION
DDRemote ID
Set a Remote ID number to between 1 and 69.
The Remote ID is included in the sentence of the Icom original NMEA format.
(Default: 15)
DDCOMMANDMIC Speaker
(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 display. Not displayed on the transceiver’s display.
Internal Speaker : Turns ON the internal speaker. (Default)
External Speaker: Turns ON the external speaker.
9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Regardless of this setting, the supplied microphone’s
speaker is ON.
81
10
CONNECTIONS AND MAINTENANCE
■■Connections
q
y
t
r
w
e
qANTENNA CONNECTOR
Connects to a marine VHF antenna cable’s PL-259 connector.
CAUTION: Transmitting without an antenna may damage the transceiver.
wNMEA IN/OUT LEADS
Brown: Talker B (Data-L), NMEA In (–)
White: Talker A (Data-H), NMEA In (+)
Connect to NMEA In lines of a PC or NMEA 0183 (ver. 2.0
or later) sentence format DSC, DSE compatible navigation
equipment, to receive position data from other ships.
82
Green: Listener B (Data-L), NMEA Out (–)
Yellow: Listener A (Data-H), NMEA Out (+)
Connect to NMEA Out lines of a GPS receiver for positiondata.
• A NMEA 0183 ver. 2.0 or later RMC, GGA, GNS, GLL, VTG,
GSV, and GSA sentence format compatible GPS receiver is required. Ask your dealer about suitable GPS receivers.
eAF OUT LEADS
Blue: External Speaker (+)
Black: External Speaker (–)
Connects to an external speaker.
Orange: Public Address Speaker (+)
Gray: Public Address Speaker (–)
Connects to a PA speaker.
• PA output power: More than 10 W at 10% distortion into a 4 ˘ load
DO NOT connect the black or grey leads to the ground.
These leads must be connected to the External speaker
(–) or Public Address Speaker (–) lines.
NOTE for NMEA In/Out and AF Out leads:
The connectors are attached to keep the leads together.
Before connecting to a piece of equipment, you should cut
the leads to remove the connector.
CONNECTIONS AND MAINTENANCE
rDC POWER CONNECTOR
Connects to a 13.8 V DC power source.
CAUTION: After connecting the DC power cable, NMEA
leads, external speaker leads, and PA speaker leads, cover the connector and leads with an vulcanizing tape, as
shown below, to prevent water seeping into the connection.
Rubber vulcanizing
tape
DDConnect to the MA-500TR
Connect the transceiver to the high-density D-Sub 15-pin
connector of the MA-500TR using the OPC-2014* cable. After connecting, an Individual DSC call can be made to the
AIS target using the transponder without entering the target’s
MMSI code.
* The OPC-2014 is supplied with the MA-500TR
•Listener A (Data-H) lead (Yellow):
Connects to lead 3 of the OPC-2014.
•Listener B (Data-L) lead (Green):
Connects to lead 2 of the OPC-2014.
•Talker A (Data-H) lead (White):
Connects to lead 5 of the OPC-2014.
tGROUND TERMINAL
Connects to a vessel ground to prevent electrical shocks
and interference from other equipment occurring.
Use a PH M3 × 6 screw (user supplied).
yCOMMAND MICROPHONE JACK
Connects to the optional Command microphone. (p. 87)
10
•Talker B (Data-L) lead (Brown):
Connects to lead 4 of the OPC-2014.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
83
10
CONNECTIONS AND MAINTENANCE
■■Antenna
■■Supplied accessories
A key element in the performance of any communication system is the antenna. Ask your dealer about antennas and the
best place to mount them.
■■Fuse replacement
One fuse is installed in the supplied DC power cable. If the
fuse blows or the transceiver stops functioning, track down
the source of the problem, repair it, and replace the damaged
fuse with a new one of the proper rating.
Fuse rating: 10 A
■■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 transceiver surfaces.
84
Mounting bracket
For mounting bracket
Knob bolts
Flat washers (M5)
Screws (5×20 mm) Spring washers (M5)
Microphone hanger
and screws (3×16 mm)
DC power cable
(OPC-891A)
CONNECTIONS AND MAINTENANCE
10
■■Mounting the transceiver
DDUsing the supplied mounting bracket
The universal mounting bracket supplied with your transceiver allows overhead or dashboard mounting.
qqMount the bracket securely to a surface which is more than
10 mm thick and can support more than 5 kg using the two
supplied screws (5 × 20 mm).
wwAttach
the transceiver to the bracket so that the face of the
transceiver is at 90° to your line of sight when operating it.
KEEP the transceiver and microphone at least 1 meter
away from the vessel’s magnetic navigation compass.
NOTE: Check the installation angle; the function display
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 has a
clear view to receive signals from satellites.
• MOUNTING EXAMPLE
Built-in GPS receiver
is located here.
(For only IC-M423G
and IC-M424G.)
These bolts are shown as
only a mounting example.
(User supplied)
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
85
10
CONNECTIONS AND MAINTENANCE
■■MB-132 installation
An optional MB-132 flush mount is available for mounting the
transceiver to a flat surface, such as an instrument panel.
eeAttach 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.
KEEP the transceiver and microphone at least 1 meter
away from your vessel’s magnetic navigation compass.
qqUsing the template on page 93, carefully cut a hole into
the instrument panel, or wherever you plan to mount the
transceiver.
wwSlide the transceiver through the hole, as shown below.
rrTighten the end bolts on the clamps (clockwise) so that the
clamps press firmly against the inside of the instrument
control panel.
ttTighten the locking nuts (counterclockwise) so that the transceiver is securely mounted in position, as shown below.
yyConnect the antenna and power cable, then return the instrument control panel to its original place.
t
r
86
CONNECTIONS AND MAINTENANCE
10
■■Microphone installation
eeUsing the mounting base as a template, carefully mark the
holes where the cable and three screws will be fastened.
rrDrill holes at these marks.
ttInstall the mounting base using the supplied screws, as
shown below.
Mounting base
Nut
Gasket
The optional HM-195 should be connected to the transceiver
using the supplied OPC-1540 connection cable.
The cable is used to operate from a longer distance. The
cable connector can also be installed as a built-in plug on a
cabinet or wall.
To operate from even longer distances, the optional 6 meter
long OPC-1541 extension cable can be used between the
transceiver and the OPC-1540. Up to two OPC-1541 can be
added.
Screw holes
(approx. 2 (d) mm; 3⁄32˝)
Cap
yyThe completed installation should look like this.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DDInstallation
qqInsert the OPC-1540 cable connector into the command
microphone jack, and tighten the nut.
wwTo use the cable connector as a wall socket, install it as
described to the right.
87
10
CONNECTIONS AND MAINTENANCE
Mounting base
Nut
Gasket
88
Cap
SPECIFICATIONS AND OPTIONS
■■Specifications
DDGeneral
• Frequency coverage:
Tx IC-M423/IC-M423G
156.000–161.450 MHz
IC-M424/IC-M424G
156.025–157.425 MHz
IC-M423 (CHN version)
156.025–157.425 MHz
Rx IC-M423/IC-M423G
156.000–163.425 MHz
IC-M424/IC-M424G
156.050–163.275 MHz
IC-M423 (CHN version)
156.050–162.025 MHz
CH70
156.525 MHz
• Mode:16K0G3E (FM)
16K0G2B (DSC)
• Channel spacing:
25 kHz
• Operating temperature range: –20°C to +60°C;
–4ºF to +140ºF
• Current drain (at 13.8 V):
TX high
5.5 A maximum
Maximum audio
5.0 A maximum
• Power requirement:
(negative ground)
13.8 V DC nominal
• Frequency stability:
±1.5 kHz (–20°C to +60°C;
–4°F to +140°F)
• Antenna impedance:
50 Ω nominal
• Dimensions (approximately):180(W) × 82(H) × 135(D) mm
; 7.1(W) × 3.2(H) × 5.3(D) inches
(Projections not included)
• Weight (approximately):
1.2 kg; 2.6 lb
11
• Modulation system:Variable reactance frequency
modulation
•Maximum frequency deviation:±5.0 kHz
• Spurious emissions:
IC-M423/IC-M423G
Less than 0.25 µW
IC-M424/IC-M424G
Less than –70 dBc (high)
Less than –56 dBc (low)
DDReceiver
• Receive system:Double conversion superheterodyne
• Sensitivity:
FM IC-M423/IC-M423G –5 dBµ emf typical (at 20 dB SINAD)
IC-M424/IC-M424G –13 dBµ typical (at 12 dB SINAD)
DSC IC-M423/IC-M423G –4 dBµ emf typical (1% BER)
IC-M424/IC-M424G –5 dBµ emf typical (1% BER)
• Squelch sensitivity:
IC-M423/IC-M423G
Less than –2 dBµ emf
IC-M424/IC-M424G
Less than –10 dBµ
• Intermodulation rejection ratio:
FM IC-M423/IC-M423G More than 68 dB
IC-M424/IC-M424G More than 70 dB
DSC
More than 68 dBµ emf (1% BER)
• Spurious response rejection ratio:
FM
More than 70 dB
DSC
More than 73 dBµ emf (1% BER)
• Adjacent channel selectivity:
FM
More than 70 dB
DSC
More than 73 dBµ emf (1% BER)
• Audio output power:
IC-M423/IC-M423GMore than 10 W at 10% distortion
DDTransmitter
into a 4 Ω load
• Output power:
25 W/1 W
IC-M424/IC-M424G10 W at 10% distortion into a 4 Ω
load
All stated specifications are subject to change without notice or obligation.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
89
11
SPECIFICATIONS AND OPTIONS
DDDimensions
164.1 (6.5)
119.9 (4.7)
•HM-195 commandmicIV™
External microphone-type controller. Provides optional intercom operation. 6 m (20 ft) microphone cable and mounting base included. Black and white colors are available.
HM-195B: Black
HM-195SW: Super White
82 (3.2)
61.4 (2.4)
Unit: mm (inch)
180 (7.1)
25.3
(1)
109.7 (4.3)
■■Options
•MB-132 flush mount kit
To mount the transceiver to a panel.
•MA-500TR class b ais transponder
To transmit individual DSC calls to a selected AIS targets.
90
•OPC-1541 microphone extension cable
6 m (20 ft) microphone extension cable for optional HM-195
commandmicIV™. Up to two OPC-1541 can be connected.
Usable length is 18 m (60 ft) maximum.
Approved Icom optional equipment is designed for optimal performance when used with an Icom transceiver.
Icom is not responsible for the destruction or damage to an Icom
transceiver in the event the Icom transceiver is used with equipment
that is not manufactured or approved by Icom.
CHANNEL LIST
Channel number
USA*5 INT CAN*4
01
01
01A
02
02
03
03
03A
04
04A
05
05A
05A
06
06
06
07
07A
07A
08
08
08
09
09
09
10
10
10
11
11
11
12
12
12
13*2 13 13*1
14
14
14
15*2 15*1 15*1
16
16
16
17*1 17 17*1
18
18A
18A
19
19A
19A
20 20*1
20
20A
Frequency (MHz)
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
156.200 156.200
156.250 160.850
156.250 156.250
156.300 156.300
156.350 160.950
156.350 156.350
156.400 156.400
156.450 156.450
156.500 156.500
156.550 156.550
156.600 156.600
156.650 156.650
156.700 156.700
156.750 156.750
156.800 156.800
156.850 156.850
156.900 161.500
156.900 156.900
156.950 161.550
156.950 156.950
157.000 161.600
157.000 157.000
Channel number
USA*5 INT CAN*4
21
21
21A
21A
21b
22
22A
22A
23
23
23A
24
24
24
25
25
25
25b
26
26
26
27
27
27
28
28
28
28b
37A*6 37A*6
60
60
61
61A
61A
62
62A
63
63A
64
64
64A
64A
65
65A 65A*4 65A
66
66A 66A*4 66A*1
Frequency (MHz)
Transmit Receive
157.050 161.650
157.050 157.050
Rx only 161.650
157.100 161.700
157.100 157.100
157.150 161.750
157.150 157.150
157.200 161.800
157.250 161.850
Rx only 161.850
157.300 161.900
157.350 161.950
157.400 162.000
Rx only 162.000
157.850 157.850
156.025 160.625
156.075 160.675
156.075 156.075
156.125 160.725
156.125 156.125
156.175 160.775
156.175 156.175
156.225 160.825
156.225 156.225
156.275 160.875
156.275 156.275
156.325 160.925
156.325 156.325
*5 For only U.S.A, U.K, and Australian versions. *4 For only U.S.A versions.
*2 Momentary high power. *1 Low power only.
*6 UK Marina Channels: M1=37A (157.850 MHz), M2=P4 (161.425 MHz)
for only U.K. versions. *3 DSC operation only.
Channel number
USA*5 INT CAN*4
67*2 67
67
68
68
68
69
69
69
70*3 70*3 70*3
71
71
71
72
72
72
73
73
73
74
74
74
75*1 75*1 75*1
76*1 76*1 76*1
77*1 77 77*1
78
78A
78A
79
79A
79A
80
80A
80A
81
81A
81A
82
82A
82A
83
83
83A
83A
83b
84
84
84
84A
85
85
85
85A
Frequency (MHz)
Transmit Receive
156.375 156.375
156.425 156.425
156.475 156.475
156.525 156.525
156.575 156.575
156.625 156.625
156.675 156.675
156.725 156.725
156.775 156.775
156.825 156.825
156.875 156.875
156.925 161.525
156.925 156.925
156.975 161.575
156.975 156.975
157.025 161.625
157.025 157.025
157.075 161.675
157.075 157.075
157.125 161.725
157.125 157.125
157.175 161.775
157.175 157.175
Rx only 161.775
157.225 161.825
157.225 157.225
157.275 161.875
157.275 157.275
Channel number
USA*5 INT CAN*4
86
86
86
86A
87
87
87
87A
88
88
88
88A
P4*6 P4*6
WX channel*7
1
2
3
4
5
6
7
8
9
10
12
Frequency (MHz)
Transmit Receive
157.325 161.925
157.325 157.325
157.375 161.975
157.375 157.375
157.425 162.025
157.425 157.425
161.425 161.425
Frequency (MHz)
Transmit
Receive
RX only
162.550
RX only
162.400
RX only
162.475
RX only
162.425
RX only
162.450
RX only
162.500
RX only
162.525
RX only
161.650
RX only
161.775
RX only
163.275
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NOTE: Simplex channels, 3, 21, 23, 61, 64, 81, 82, and 83 CANNOT
be lawfully used by the general public in U.S.A. waters.
*7 For only U.S.A and Australian versions.
91
13
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
The transceiver does • Bad connection to the power source.
not turn ON.
Little or no sound comes • Squelch level is set too high.
from the speaker.
• Volume level is set too low.
• Speaker has been exposed to water.
SOLUTION
• Check the connection to the transceiver and
power source.
• Set the squelch to the threshold point.
• Set the volume to a suitable level.
• Remove the water with the AquaQuake function.
Transmitting is impossi- • Some channels are restricted to low power • Change channels.
ble, or high power can- or receive only by regulations.
not be selected.
• The output power is set to low.
• Push [HI/LO] to select high power.
Scan does not start.
• Favorite channels are not entered.
• Set the desired channels as Favorite channels.
No beep sounds.
• Beep tones are turned OFF.
• Turn ON the beep tones in the CONFIGURATION menu.
Distress calls cannot be • MMSI (DSC self ID) code is not entered.
• Enter the MMSI (DSC self ID) code.
transmitted.
Built-in GPS receiver is • The built-in GPS antenna is covered by an • Mount the transceiver in a place where no
not receiving valid posi- object that interrupts the GPS signals from objects interrupts the satellites signal.
the satellites.
tion data.
(For only IC-M423G
and IC-M424G.)
92
REF.
p. 82
p. 15
p. 15
p. 18
pp. 11,
12, 13
p. 14
p. 20
p. 76
p. 9
p. 85
TEMPLATE
14
180 (7 3⁄32)
165.1 (6 1⁄2)
2 (3⁄32)
HM-195
MB-132
82 (3 7⁄32)
62.4 (2 15⁄32)
R12 (Max.)
29.5 to 31.5 (d)
(1 5⁄32 to 1 1⁄4)
Cut here
Unit: mm (inch)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
93
INDEX
A
Accessories, supplied..........................................................84
Acknowledgement, Automatic.............................................63
Alarm .................................................................................65
All Ships call
Making a call....................................................................36
Receiving a Call...............................................................56
Antenna...............................................................................84
AquaQuake..........................................................................18
ATIS code............................................................................10
B
Backlight level......................................................................18
C
Call channel
Selecting a Call channel..................................................11
Entering a Call channel...................................................16
Call log
Received Call log.............................................................61
Transmitted Call log.........................................................60
Channel 16..........................................................................11
Channel 16 Switch function.................................................64
Channel 70 Squelch level....................................................65
Channel group.....................................................................12
Channel List.........................................................................91
Channel Name.....................................................................16
Cleaning..............................................................................84
COMMANDMIC Speaker.....................................................81
Connections.........................................................................82
Country Code List.................................................................. ii
D
Display contrast...................................................................76
Distress Acknowledgement.................................................53
Distress Call
Making a call...................................................................26
Canceling a call...............................................................29
Receiving a Call..............................................................53
Distress Relay Acknowledgement.......................................54
Distress Relay Call..............................................................54
DSC Loop Test.....................................................................66
DSC Settings.......................................................................63
DUALWATCH/TRI-WATCH..................................................21
E
Explicit Definitions.................................................................. i
F
Favorite channels................................................................20
Front panel............................................................................2
Function display.....................................................................5
Fuse replacement................................................................84
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
95
INDEX
G
K
Geographical Area Call.......................................................56
Group call
Making a call....................................................................34
Receiving a Call...............................................................56
Group ID
Entering ID......................................................................23
Deleting ID.......................................................................24
Key Assignment...................................................................76
Key Beep.............................................................................76
H
Horn .................................................................................71
I
IMPORTANT........................................................................... i
Inactivity Timer....................................................................79
Individual Call
Making a call....................................................................30
Making an acknowledgement .........................................32
Receiving a call...............................................................55
Individual ID
Entering ID......................................................................22
Deleting ID.......................................................................24
Intercom...............................................................................69
Installation
Template..........................................................................93
96
M
MB-132 installation..............................................................86
Menu screen
Menu screen items.........................................................73
Using the Menu screen...................................................72
Microphone installation........................................................87
Microphone Lock function....................................................17
MMSI code............................................................................9
Mounting the transceiver.....................................................85
N
NMEA Output......................................................................80
Noise Cancel.......................................................................78
O
Operating Rules.....................................................................1
Operation, basic..................................................................11
Options................................................................................90
INDEX
P
PA (Public Address).............................................................70
Polling Request Call
Making a call...................................................................41
Making a reply call..........................................................51
Receiving a call...............................................................59
Position and time.................................................................25
Position Report Call
Making a call...................................................................39
Making a reply call..........................................................49
Receiving a call...............................................................58
Position Request Call
Making a call...................................................................37
Making a reply call..........................................................47
Receiving a call...............................................................57
PRECAUTIONS (English)..................................................... vi
PRÉCAUTIONS (Français).................................................. vii
Softkey function.....................................................................7
Specifications......................................................................89
Speaker Microphone.............................................................8
Squelch................................................................................15
T
Test Acknowledgement call
Making a call...................................................................45
Receiving a call...............................................................60
Test call
Making a call...................................................................43
Making an acknowledgement..........................................45
Receiving a call...............................................................59
Transmitting.........................................................................14
Troubleshooting...................................................................92
U
R
UTC Offset...........................................................................78
Receiving.............................................................................14
Remote ID...........................................................................81
RX Speaker.........................................................................70
V
volume.................................................................................15
S
W
Scan
Scan resume timer..........................................................74
Scan types......................................................................19
Starting a scan................................................................20
Weather alert.......................................................................75
Weather channel.................................................................13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
97
< Intended Country of Use >
AT
FI
IT
PL
GB
RO
BE
FR
LV
PT
IS
TR
A-7197D-1EX
Printed in Japan
© 2014 Icom Inc.
Printed on recycled paper with soy ink.
CY
DE
LT
SK
LI
HR
CZ
GR
LU
SI
NO
DK
HU
MT
ES
CH
EE
IE
NL
SE
BG
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan
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