Icom Fish Finder IC M304 User Manual

INSTRUCTION MANUAL

VHF MARINE TRANSCEIVER

iM304

IN CASE OF EMERGENCY

NOTE

If your vessel requires assistance, contact other vessels and

the Coast Guard by sending a distress call on Channel 16.

A WARNING STICKER is supplied with the transceiver.

To comply with FCC regulations, this sticker must be afﬁxed in

such a location as to be readily seen from the operating con-

trols of the radio as in the diagram below. Make sure the cho-

sen location is clean and dry before applying the sticker.

(p. 32)

USING CHANNEL 16

DISTRESS CALL PROCEDURE

1. “MAYDAY MAYDAY MAYDAY.”

2. “THIS IS ...............” (name of vessel)

3. Your call sign or other indication of the vessel (AND 9-

digit DSC ID if you have one).

EXAMPLE

4. “LOCATED AT ...............” (your position)

5. The nature of the distress and assistance required.

6. Any other information which might facilitate the rescue.

WARNING

STICKER

Or, transmit your distress call using digital selective calling on

Channel 70.

USING DIGITAL SELECTIVE CALLING (Ch 70)

DISTRESS CALL PROCEDURE

1. While opening the key cover, push and hold

[DISTRESS] for 5 sec. until you hear 5 short beeps

change to one long beep.

2. Wait for an acknowledgment from a coast station.

• Channel 16 is automatically selected.

3. Push and hold [PTT], then transmit the appropriate

information as listed above.

RADIO OPERATOR WARNING

Icom requires the radio operator to meet the

FCC Requirements for Radio Frequency Expo-

sure. An omnidirectional antenna with gain not

greater than 9 dBi must be mounted a minimum

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 EXPO-

SURE LIMITS ARE OBSERVED AT ALL TIMES DURING

RADIO TRANSMISSION. THE RADIO OPERATOR IS TO

ENSURE THAT NO BYSTANDERS COME WITHIN THE

RADIUS OF THE MAXIMUM PERMISSIBLE EXPOSURE

LIMITS.

WARNING

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 re-

quirements. 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.

Determining MPE Radius

THE MAXIMUM PERMISSIBLE EXPOSURE (MPE) RA-

DIUS HAS BEEN ESTIMATED TO BE A RADIUS OF

ABOUT 3M PER OET BULLETIN 65 OF THE FCC.

THIS ESTIMATE IS MADE ASSUMING THE MAXIMUM

POWER OF THE RADIO AND ANTENNAS WITH A MAXI-

MUM GAIN OF 9dBi ARE USED FOR A SHIP MOUNTED

SYSTEM.

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 allow-

able MPE level set by FCC.

iii

TABLE OF CONTENTS

FOREWORD …………………………………………………………… i

IMPORTANT …………………………………………………………… i

EXPLICIT DEFINITIONS ……………………………………………… i

IN CASE OF EMERGENCY…………………………………………… ii

NOTE …………………………………………………………………… ii

RADIO OPERATOR WARNING……………………………………… iii

TABLE OF CONTENTS ……………………………………………… iv

PRECAUTIONS………………………………………………………… v

DSC OPERATION …………………………………………… 13–27

I MMSI code programming……………………………………… 13

I MMSI code check ……………………………………………… 13

I DSC address ID………………………………………………… 14

I Position indication ……………………………………………… 15

I Distress call …………………………………………………… 16

I Transmitting DSC calls ………………………………………… 17

I Receiving DSC calls …………………………………………… 24

SET MODE …………………………………………………… 28–30

I Set mode programming ……………………………………… 28

I Set mode items ………………………………………………… 29

OPERATING RULES ……………………………………………… 1

PANEL DESCRIPTION ………………………………………… 2–4

I Front panel ……………………………………………………… 2

I Microphone ……………………………………………………… 3

I Function display ………………………………………………… 4

CONNECTIONS AND MAINTENANCE …………………… 31–34

I Connections …………………………………………………… 31

I Supplied accessories ………………………………………… 32

I Antenna ………………………………………………………… 32

I Fuse replacement ……………………………………………… 32

I Cleaning ………………………………………………………… 32

I Mounting the transceiver ……………………………………… 33

I Optional MB-92 attachment…………………………………… 33

I Optional MB-69 installation …………………………………… 34

BASIC OPERATION …………………………………………… 5–9

I Channel selection ……………………………………………… 5

I Receiving and transmitting……………………………………… 7

I Call channel programming ……………………………………… 8

I Channel comments ……………………………………………… 8

I Microphone lock function ……………………………………… 9

I Display backlighting……………………………………………… 9

I AquaQuake water draining function …………………………… 9

TROUBLESHOOTING …………………………………………… 35

10 CHANNEL LIST…………………………………………………… 36

SCAN OPERATION ………………………………………… 10–11

I Scan types ……………………………………………………… 10

I Setting TAG channels ………………………………………… 11

I Starting a scan ………………………………………………… 11

11 SPECIFICATIONS AND OPTIONS ……………………… 37–38

I Speciﬁcations…………………………………………………… 37

I Options ………………………………………………………… 38

DUALWATCH/TRI-WATCH ……………………………………… 12

I Description ……………………………………………………… 12

I Operation ……………………………………………………… 12

12 TEMPLATE ……………………………………………………… 39

PRECAUTIONS

BE CAREFUL! The transceiver rear panel will become

hot when operating continuously for long periods.

Place the transceiver in a secure place to avoid inadvertent

use by children.

RWARNING! NEVER connect the transceiver to an AC

outlet. This may pose a fire hazard or result in an electric

shock.

CAUTION: Changes or modiﬁcations to this device, not ex-

pressly approved by Icom Inc., could void your authority to

operate this device under FCC regulations.

BE CAREFUL! The transceiver (except cables) and hand

microphone employ waterproof construction, which corre-

sponds to IPX7 of the international standard IEC 60529

(2001). However, once the transceiver has been dropped,

waterprooﬁng cannot be guaranteed due to the fact that the

case may be cracked, or the waterproof seal damaged, etc.

NEVER connect the transceiver to a power source of more

than 16 V DC or use reverse polarity. This will ruin the trans-

ceiver.

NEVER cut the DC power cable between the DC plug and

fuse holder. If an incorrect connection is made after cutting,

the transceiver may be damaged.

NEVER place the transceiver where normal operation of the

vessel may be hindered or where it could cause bodily injury.

KEEP the transceiver at least 3.3 ft (1 m) away from the

ship’s navigation compass.

DO NOT use or place the transceiver in areas with temper-

atures below –4°F (–20°C) or above +140°F (+60°C) or, in

areas subject to direct sunlight, such as the dashboard.

AVOID the use of chemical agents such as benzine or al-

cohol when cleaning, as they may damage the transceiver

surfaces.

OPERATING RULES

(2) OPERATOR’S LICENSE

PRIORITIES

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.

• Read all rules and regulations pertaining to priorities and

keep an up-to-date copy handy. Safety and distress calls

take priority over all others.

The Restricted Radiotelephone Operator Permit must be

posted or kept with the operator. Only a licensed radio opera-

tor may operate a transceiver.

• You must monitor Channel 16 when you are not operating

on another channel.

• False or fraudulent distress signals are prohibited and pun-

ishable by law.

However, non-licensed individuals may talk over a transceiver

if a licensed operator starts, supervises, ends the call and

makes the necessary log entries.

PRIVACY

• Information overheard but not intended for you cannot law-

fully be used in any way.

Keep a copy of the current government rules and regulations

handy.

• Indecent or profane language is prohibited.

Radio license for boaters (U.S.A. only)

The Telecommunications Act of 1996 permits recreational

boaters to have and use a VHF marine radio, EPIRB, and

marine radar without having an FCC ship station license.

Boaters traveling on international voyages, having an HF

single sideband radiotelephone or marine satellite termi-

nal, or required to carry a marine radio under any other

regulation must still carry an FCC ship station license. For

further information, see the FCC Ship Radio Stations Fact

Sheet.

RADIO LICENSES

(1) SHIP STATION LICENSE

You must have a current radio station license before using the

transceiver. It is unlawful to operate a ship station which is not

licensed.

Inquire through 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.

PANEL DESCRIPTION

I Front panel

w POWER/VOLUME CONTROL [VOL] (p. 7)

Rotate to turn the transceiver power ON and OFF and ad-

justs the audio level.

Speaker

Function display (p. 4)

e SQUELCH CONTROL [SQL] (p. 7)

Rotate to set the squelch threshold level.

r CHANNEL 16/CALL CHANNEL KEY [!•9]

➥Push to select Channel 16. (p. 5)

➥Push and hold for 1 sec. to select call channel. (p. 5)

• “CALL” appears when the call channel is selected.

➥Push and hold for 3 sec. to enter call channel program-

ming condition when the call channel is selected. (p. 8)

➥While pushing and holding [CH/WX], push to enter the

channel comments programming condition. (p. 8)

➥Push to move the cursor forward. (p. 8)

q CHANNEL UP/DOWN KEYS [Y]/[Z]•[U/I/C]

➥Selects the operating channels, Set mode settings, etc.

(pgs. 5, 6, 28)

➥While turning power ON, push to enter Set mode. (p. 28)

t CHANNEL/WEATHER CHANNEL KEY [CH/WX•DUAL]

➥Selects and toggles the regular channel and weather

channel when pushed momentarily. (p. 6)

➥Push and hold for 1 sec. to start Dualwatch or Tri-watch.

(p. 12)

➥While pushing and holding [SCAN], push to adjust the

brightness of the LCD and key backlight. (p. 9)

➥Selects one of three channel groups in sequence when

both keys are pushed. (p. 6)

• U.S.A., International and Canadian channels are available.

➥While turning power ON, push and hold both keys to ac-

tivate the AquaQuake function. (p. 9)

➥Push to stop Dualwatch or Tri-watch when either is acti-

vated. (p. 12)

➥Push to move the cursor backward. (p. 8)

PANEL DESCRIPTION 2

I Microphone

y SCAN KEY [SCAN•TAG] (p. 11)

➥Push to start or stop the Normal or Priority scan.

➥Push and hold for 1 sec. to set or clear the displayed

channel as a TAG (scanned) channel.

Microphone

• The favorite channels are set by the TAG channel setting.

➥While pushing and holding [HI/LO] on the microphone,

push for 3 sec. to clear all TAG channels in the selected

channel group.

• Repeat above procedure to set all TAG channels.

u DISTRESS KEY [DISTRESS] (p. 16)

Push and hold for 5 sec. to transmit a Distress call.

i DSC/POSITION KEY [DSC•POS]

➥Push to enter DSC menu. (p. 13)

q PTT SWITCH [PTT]

➥Push and hold for 1 sec. to show the current position

from a GPS receiver. (p. 15)

Push and hold to transmit; release to receive. (p. 7)

w CHANNEL UP/DOWN KEYS [Y]/[Z]

➥ Push either key to change the operating channel, Set

mode settings, etc. (pgs. 5, 6, 28)

➥ When the Favorite channel function is turned ON, push

either key to select the favorite channels in the selected

channel group in sequence. (p. 30)

e TRANSMIT POWER KEY [HI/LO]

➥ Push to toggle the power high and low. (p. 7)

• Some channels are set to low power only.

➥ While pushing and holding [HI/LO], turn power ON to

toggle the Microphone Lock function ON and OFF.

(p. 9)

PANEL DESCRIPTION

t CALL CHANNEL INDICATOR (p. 5)

I Function display

Appears when the call channel is selected.

y LOW POWER INDICATOR (p. 7)

Appears when low power is selected.

u WEATHER CHANNEL INDICATOR (pgs. 6, 29)

➥“WX” appears when a weather channel is selected.

➥“WX ALT” appears when the Weather alert function is in

use; blinks when an alert tone is received.

i DSC INDICATORS

➥“DSC” appears when a DSC call is received. (p. 24)

➥“POS REPLY” appears when a Position Reply call or

Position Report Reply call is received. (p. 27)

o CHANNEL COMMENT INDICATOR

➥Channel comment appears if programmed. (p. 8)

q CHANNEL GROUP INDICATOR (p. 6)

➥“

” scrolls when the battery voltage drops to

Indicates whether a U.S.A. “U,” International “ ” or Cana-

dian “C” channel is in use.

approx. 10.8 V DC or below.

➥“ ” blinks during Priority scan; “

” blinks during

Normal scan. (p. 11)

➥“ ” blinks during Dualwatch; “ ” blinks during Tri-

watch. (p. 12)

w CHANNEL NUMBER READOUT

➥Indicates the selected operating channel number.

• Refer to CHANNEL LIST. (p. 36)

➥In Set mode, indicates the selected condition. (p. 28)

! TAG CHANNEL INDICATOR (p. 11)

Appears when a TAG channel is selected.

e TRANSMIT INDICATOR (p. 7)

Appears while transmitting.

! DUPLEX INDICATOR (p. 6)

Appears when a duplex channel is selected.

r BUSY INDICATOR (p. 7)

Appears when receiving a signal or when the squelch

opens.

! GPS INDICATOR

➥Appears while valid position data is received.

➥Blinks when invalid position data is received.

➥Disappears when no GPS receiver is connected.

BASIC OPERATION

I Channel selection

Channel 16

Channel 9 (Call 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 Dual-

watch 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 channels can be programmed (p. 8) and are used to store

your most often used channels in each channel group for

quick recall.

➥ Push [!] momentarily to select Channel 16.

➥ Push [CH/WX] to return to the condition before selecting

Channel 16, or push [Y] or [Z] to select operating chan-

nel.

➥ Push and hold [9] (!) for 1 sec. to select the call channel

of the selected channel group.

• “CALL” and call channel number appear.

• Each channel group may have an independent call channel after

programming a call channel. (p. 8)

➥ Push [CH/WX] to return to the condition before selecting

call channel, or push [Y] or [Z] to select a channel.

Push

for 1 sec.

Scrolls

Convenient!

Scrolls

When the Favorite channel function is turned ON (p. 30),

[Y]/[Z] keys on the microphone select the favorite channels

in the selected channel group in sequence when pushed.

• The favorite channels are set by the TAG channel setting. (p. 11)

BASIC OPERATION

U.S.A.,Canadian and international channels

Weather channels

The IC-M304 is pre-programmed with 59 U.S.A., 59 interna-

tional and 63 Canadian channels. These channel groups may

be speciﬁed for the operating area.

The IC-M304 has 10 pre-programmed weather channels.

These are used for monitoring broadcasts from NOAA (Na-

tional Oceanic and Atmospheric Administration.)

q Push [CH/WX] to select a regular channel.

• If a weather channel appears, push [CH/WX] again.

w Push [U/I/C] (both [Y] and [Z]) on the transceiver to

change the channel group, if necessary.

• U.S.A., International and Canadian channel groups can be se-

lected in sequence.

The transceiver can automatically detect a weather alert tone

on the selected weather channel while receiving the channel

or during scanning. (p. 29)

q Push [CH/WX] once or twice to select a weather channel.

• “WX” appears when a weather channel is selected.

• “WX ALT” appears when the Weather alert function is in use.

(p. 29)

e Push [Y] or [Z] to select a channel.

• “ ” appears for duplex channels.

w Push [Y] or [Z] to select a channel.

Push

once or twice

Push [U/I/C] (both

and

)

When Weather alert is OFF.

When Weather alert is ON.

BASIC OPERATION 3

I Receiving and transmitting

CAUTION: Transmitting without an antenna will damage

the transceiver.

Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CAN-

NOT be lawfully used by the general public in U.S.A. wa-

ters.

q Rotate [VOL] to turn power ON.

w Set the audio and squelch levels.

IMPORTANT: To maximize the readability of your trans-

mitted signal, pause a few sec. after pushing [PTT], hold

the microphone 2 to 4 inches (5 to 10 cm) from your mouth

and speak into the microphone at a normal voice level.

➥ Rotate [SQL] fully counterclockwise in advance.

➥ Rotate [VOL] to adjust the audio output level.

➥ Rotate [SQL] clockwise until the noise disappears.

e Push [U/I/C] (both [Y] and [Z]) on the transceiver several

times to select the desired channel group. (p. 6)

r Push [Y] or [Z] to select a channel. (p. 5)

Microphone

y u

e r

• When receiving a signal, “

from the speaker.

” appears and audio is emitted

• Further adjustment of [VOL] may be necessary.

t Push [HI/LO] on the microphone to select the output

power if necessary.

• “LOW” appears when low power is selected.

• Choose low power for short range communications, choose high

power for longer distance communications.

• Some channels are for low power only.

y Push and hold [PTT] to transmit, then speak into the mi-

crophone.

✔ NOTE for TOT (Time-out Timer) function

The TOT function inhibits continuous transmission over a pre-

set time period after the transmission starts.

• “

” appears.

• Channel 70 cannot be used for transmission other than DSC.

u Release [PTT] to receive.

BASIC OPERATION

I Call channel programming

I Channel comments

Call channel is used to select Channel 9 (default), however,

you can program the call channel with your most often-used

channel in each channel group for quick recall.

Memory channels can be labeled with a unique alphanumeric

ID of up to 10 characters each.

More than 6 characters comment scrolls automatically at the

channel comment indicator after the channel selection.

q Push [U/I/C] (both [Y] and [Z]) on the transceiver several

times to select the desired channel group (U.S.A., Interna-

tional or Canada) to be programmed.

w Push and hold [9] (!) for 1 sec. to select the call channel

of the selected channel group.

• “CALL” and call channel number appear.

e Push and hold [9] (!)

again for 3 sec. (until a long

beep changes to 2 short

beeps) to enter call channel

programming condition.

Capital letters, small letters (except f, j, k, p, s, v, x, z), 0 to 9,

some symbols (= ✱ + – . /) and space can be used.

q Select the desired channel.

• Cancel Dualwatch, Tri-watch or Scan in advance.

w While pushing [CH/WX], push [!] to edit the channel

comment.

• A cursor and the first char-

acter start blinking alter-

nately.

• Channel number starts blink-

ing.

r Push [Y] or [Z] to select

the desired channel.

t Push [!] to program the

displayed channel as the

call channel.

e Pushing [Y] or [Z] to select the desired character.

• Push [!] or [CH/WX] to move the cursor forward or backward,

respectively.

r Repeat step e to input all characters.

t Push [DSC] to input and set the comment.

• Push [SCAN] to cancel.

• The cursor and the character stop blinking.

y Repeat steps q to t to program other channel com-

ments, if desired.

• Push [CH/WX] to cancel.

• The channel number stops

blinking.

BASIC OPERATION 3

I Microphone lock function

The microphone lock function electrically locks [Y] and [Z]

keys on the supplied microphone. This prevents accidental

channel changes and function access.

I AquaQuake water draining

function

The IC-M304 uses a new technology to clear water away

from the speaker grill: AquaQuake. AquaQuake helps drain

water away from the speaker housing (water that might oth-

erwise mufﬂe the sound coming from the speaker). The IC-

M304 emits a vibrating noise when this function is being

used.

➥ While pushing and holding [HI/LO] on the microphone,

turn power ON to toggle the Microphone lock function ON

and OFF.

➥ While pushing and holding [Y] and [Z], turn power ON.

• A low beep tone sounds while [Y] or [Z] keys are held to drain

water, regardless of [VOL] control setting.

• The transceiver never accepts a key operation while the

AquaQuake function is activated.

[Y]/[Z]

[HI/LO]

• “

” scrolls at the channel comment indicator.

I Display backlighting

Scrolls

The function display and keys can be backlit for better visibil-

ity under low light conditions.

➥ While pushing and holding [SCAN], push [Y] or [Z] to ad-

just the brightness of the LCD and key backlight.

• The backlight is selectable in 3 levels and OFF.

SCAN OPERATION

I Scan types

Scanning is an efﬁcient way to locate signals quickly over a

wide frequency range. The transceiver has Priority scan and

Normal scan.

Set the TAG channels (scanned channels) before scanning.

Clear the TAG channels which inconveniently stop scanning,

such as those for digital communication use. (Refer to the

right page for details.)

When the Weather alert function is turned ON, the previously

selected (last used) weather channel is also checked while

scanning. (p. 29)

Choose Priority or Normal scan in Set mode. (p. 29)

PRIORITY SCAN

NORMAL SCAN

CH 01

CH 02

CH 01

CH 02

CH 06

CH 03

CH 06

CH 16

CH 03

CH 05

CH 04

CH 05

CH 04

Priority scan searches through all TAG channels in se-

quence while monitoring Channel 16. When a signal is de-

tected on Channel 16, scan pauses until the signal disap-

pears; when a signal is detected on a channel other than

Channel 16, scan becomes Dualwatch until the signal dis-

appears.

Normal scan, like priority scan, searches through all TAG

channels in sequence. However, unlike priority scan, Chan-

nel 16 is not checked unless Channel 16 is set as a TAG

channel.

SCAN OPERATION 4

I Setting TAG channels

I Starting a scan

For more efficient scanning, add desired channels as TAG

channels or clear the TAG for unwanted channels.

Set scan type (Priority or Normal scan) and scan resume

timer in advance using Set mode. (p. 29)

Channels that are not tagged will be skipped during scanning.

TAG channels can be assigned to each channel group

(U.S.A., International and Canada) independently.

q Push [U/I/C] (both [Y] and [Z]) several times to select the

desired channel group, if desired.

w Set TAG channels as described at left.

q Push [U/I/C] (both [Y] and [Z]) several times to select the

desired channel group.

w Select the desired channel to be set as a TAG channel.

e Push and hold [TAG] (SCAN) for 1 sec. to set the dis-

played channel as a TAG channel.

e Make sure the squelch is closed to start a scan.

r Push [SCAN] to start Priority or Normal scan.

• “

” blinks during Priority scan; “

” blinks during Normal

scan.

• When a signal is detected, scan pauses until the signal disap-

pears or resumes after pausing 5 sec. according to Set mode

setting. (Channel 16 is still monitored during Priority scan.)

• Push [Y] or [Z] to check the scanning TAG channels, to change

the scanning direction or resume the scan manually.

• “

” appears in the display.

r To cancel the TAG channel setting, repeat step e.

• “

” disappears.

• A beep tone sounds and “

indicator when a signal is received on Channel 16 during Priority

scan.

” blinks at the channel comment

✔ Clearing (or setting) all tagged channels

While pushing and holding [HI/LO] on the microphone, push

[TAG] (SCAN) for 3 sec. (until a long beep changes to 2 short

beeps) to clear all TAG channels in the selected channel group.

• Repeat above procedure to set all TAG channels.

t To stop the scan, push [SCAN].

[Example]: Starting a normal scan.

Scan starts.

When a signal is received.

Push

to stop the scan

DUALWATCH/TRI-WATCH

I Description

I 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/Tri-

watch are convenient for monitor Channel 16 when you are

operating on another channel.

q Select Dualwatch or Tri-watch in Set mode. (p. 29)

w Select the desired channel.

e Push and hold [DUAL] (CH/WX) for 1 sec. to start Dual-

watch or Tri-watch.

• “ ” blinks during Dualwatch; “ ” blinks during Tri-watch.

• A beep tone sounds when a signal is received on Channel 16.

r To cancel Dualwatch or Tri-watch, push [DUAL] (CH/WX).

DUALWATCH/TRI-WATCH SIMULATION

Call channel

[Example]: Operating Tri-watch on INT Channel 25

Tri-watch starts.

Push and hold

for 1 sec.

Signal is received on call

channel.

Dualwatch

Tri-watch

• If a signal is received on Channel 16, Dualwatch/Tri-watch

pauses 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 Dualwatch/Tri-

watch, push and hold [PTT].

Signal is received on

Channel 16 takes priority.

Tri-watch resumes after

the signal disappears.

DSC OPERATION

I MMSI code programming

I MMSI code check

The 9-digit MMSI (Maritime Mobile Service Identity: DSC self

ID) code can be programmed at power ON.

The 9-digit MMSI (DSC self ID) code can be checked.

q Push [DSC] to enter the DSC menu.

This code programming can be performed only twice.

w Push [Y] or [Z] to select “

” and push [DSC].

q Turn power OFF.

w While pushing and holding [DSC], turn power ON to enter

MMSI code programming condition.

e After the display appears, release [DSC].

• A cursor starts blinking.

e Check the 9-digit MMSI (DSC self ID) code.

• The MMSI code is displayed and scrolls at the channel comment

indicator.

r Edit the speciﬁed MMSI code by pushing [Y] or [Z].

• Push [!] or [CH/WX] to move the cursor forward or backward,

respectively.

t Input 9-digit code, then push [DSC] to set the code.

• Returns to the normal operation.

MMSI (DSC self ID) code scrolls

r Push [DSC] to return to the normal operation.

DSC OPERATION

I DSC address ID

A total of 30 DSC address IDs (9-digit) can be programmed

and named with up to 5 characters.

r Push [Y] or [Z] to input 9-digit of the appropriate address

ID.

• Push [!] or [CH/WX] to move the cursor forward or backward,

respectively.

D Programming address ID

q Push [DSC] to enter the DSC menu.

• Push [SCAN] to cancel and exit the condition.

1st digit ‘0’ is ﬁxed for a group ID. When you input 1st digit ‘0’

and other 8 digits, the ID is automatically registered as a group

ID.

w Push [Y] or [Z] to select “

,” and push [DSC].

Scrolls

,” and push [DSC].

e Push [Y] or [Z] to select “

t After inputting 9-digit ID, push [DSC] to input 5 characters

ID name using [Y] or [Z].

• Push [!] or [CH/WX] to move the cursor forward or backward,

respectively.

• Push [SCAN] to cancel and exit the condition.

y Push [DSC] to program and exit the DSC menu.

DSC OPERATION 6

D Deleting address ID

q Push [DSC] to enter the DSC menu.

I Position indication

w Push [Y] or [Z] to select “

” and push [DSC].

When a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is con-

nected, the transceiver indicates the current position data in

seconds of accuracy.

A NMEA0183 ver. 2.0 or 3.01 (sentence formatters RMC,

GGA, GNS, GLL) compatible GPS receiver is required. Ask

your dealer about suitable GPS receivers.

Scrolls

e Push [Y] or [Z] to select “ ”, then push [DSC].

➥ Push and hold [POS] (DSC) for 1 sec. to display the cur-

rent position.

• When no address ID is programmed, “

” is displayed.

• ‘Latitude’ and ‘Longitude’ scroll in sequence at the channel com-

ment indicator.

• “

” scrolls when no GPS is connected.

r Push [Y] or [Z] to select the desired ID name for deleting

and push [DSC].

Scrolls

• “

” appears.

• When the connecting GPS receiver is compatible with

several sentence formatters, the order of input prece-

dence is ‘RMC,’ ‘GGA,’ ‘GNS’ and ‘GLL.’

• “GPS” blinks when the GPS data is invalid.

t Push [DSC] to delete the address ID and exit the DSC

menu.

DSC OPERATION

I Distress call

A Distress call should be transmitted if, in the opinion of the

Master, the ship or a person is in distress and requires imme-

diate assistance.

NEVER USE THE DISTRESS CALL WHEN YOUR

SHIP OR A PERSON IS NOT IN AN EMERGENCY.

A DISTRESS CALL CAN BE USED ONLY WHEN

IMMEDIATE HELP IS NEEDED.

Scrolls

r After receiving the acknowledgment, reply using the mi-

crophone.

• “

” scrolls at the channel comment indicator.

q Conﬁrm no Distress call is being received.

w While opening the key cover, push [DISTRESS] for 5 sec.

to transmit the Distress call.

• Emergency channel (Channel 70) is automatically selected and

the Distress call is transmitted.

Scrolls

➥ A distress alert contains;

• Kinds of distress : Undesignated distress

• Position data

: GPS position data held for 23.5 hrs. or until

the power is turned OFF.

e After transmitting the call, the transceiver waits for an ac-

knowledgment call on Channel 70.

➥ The Distress call is repeated every 3.5–4.5 min., until

receiving an ‘acknowledgement.’

➥ Push and hold [DISTRESS] for 5 sec. to transmit a re-

newed Distress call, if desired.

• The Distress call is automatically transmitted every 3.5 to 4.5

minutes.

• “

” scrolls at the channel comment indicator.

➥ Push any key except [DISTRESS] to cancel the ‘Call

repeat’ mode.

DSC OPERATION 6

I Transmitting DSC calls

To ensure correct operation of the DSC function, please

make sure you set the squelch correctly. (p. 7)

e Push [Y] or [Z] to select a desired intership channel, push

[DSC].

• Intership channels are already preset into the transceiver in rec-

ommended order.

D Transmitting Individual call

The Individual call function allows you to transmit a DSC sig-

nal to a speciﬁc ship only.

• Channel 70 is selected and “

” appears after pushing

[DSC].

q Push [DSC] to enter the DSC menu.

• “

” scrolls at the channel comment indicator.

r Push [DSC] to transmit the Individual call.

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

becomes clear.

Scrolls

w Push [DSC] to select the desired pre-programmed individ-

ual address using [Y] or [Z], then push [DSC].

• The ID code for the individual call must be set in advance.

(p. 14)

• Routine category only is available.

While transmitting

When Ch 70 is busy.

DSC OPERATION

t After transmitting the Individual call, standby on Channel

D Transmitting Individual acknowledgement

When receiving an Individual call, you can transmit an ac-

knowledgement (‘Able to comply’ or ‘Unable to comply’) by

using the on screen prompts (see page 25 for details). You

can also send an acknowledgement through the menu sys-

tem as follows.

70 until an acknowledgement is received.

• “

” scrolls at the channel comment indicator.

q Push [DSC] to enter the DSC menu.

w Push [Y] or [Z] to select “

” and push [DSC].

Scrolls

• “

” item appears after an Individual call is received.

y When the acknowledgement ‘Able to comply’ is received,

the specified channel (in step e) is selected with beeps

automatically. Or, when the acknowledgement ‘Unable to

comply’ is received, the display returns to the operated

channel (before entering the DSC menu) with beeps.

• “

” item disappears if another call is received after the

Individual call.

• The Individual acknowledgement can be transmitted to the last

received individual call only.

• “

” or “

” scrolls at the channel

comment indicator.

‘Able to comply’

is received

Scrolls

e Push [Y] or [Z] to select the acknowledgement “

.”

” or

“

Scrolls

u Push and hold [PTT] to communicate your message to the

responding ship when ‘Able to comply’ is received.

DSC OPERATION 6

D Transmitting Group call

The Group call function allows you to transmit a DSC signal

to a speciﬁc group only.

r Push [DSC] to enter the standby condition for Individual

acknowledgement call.

• “

” appears at the channel comment indicator.

q Push [DSC] to enter the DSC menu.

w Push [Y] or [Z] to select “

,” and push [DSC].

t Push [DSC] to transmit the acknowledgement to the se-

lected station.

e Push [Y] or [Z] to select the desired pre-programmed

group address, and push [DSC].

• The ID code for the group call must be set in advance. (p. 14)

y After the Individual acknowledgement has been transmit-

ted, the display changes to the channel specified by the

calling station automatically when “

” is selected.

Scrolls

DSC OPERATION

r Push [Y] or [Z] to select the desired intership channel,

and push [DSC].

y After the Group call has been transmitted, the display

changes to the previously speciﬁed channel.

• Channel 70 is selected and “

” appears.

Scrolls

u Push and hold [PTT] to communicate your message to the

responding ship.

t Push [DSC] to transmit the Group call.

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

becomes clear.

• Routine category only is available.

While transmitting

DSC OPERATION 6

D Transmitting All Ships call

r Push [DSC] to transmit the All Ships call.

Large ships use Channel 70 as their ‘listening channel.’

When you want to announce a message to these ships, use

• Routine category only is available.

• Low power is selected.

the ‘All Ships call’ function.

q Push [DSC] to enter the DSC menu.

w Push [Y] or [Z] to select “

.”

While transmitting

t After the All Ships call has been transmitted, the display

changes to Channel 16 automatically.

Scrolls

e Push [DSC] to enter the standby condition for All Ships

call.

• Channel 70 is selected and “

” appears.

Scrolls

DSC OPERATION

D Transmitting Position Request call

Transmit a Position Request call when you want to know a

speciﬁed ship’s current position, etc.

r Push [DSC] to enter the standby condition for Position Re-

quest call.

• Channel 70 is selected and “

” appears.

q Push [DSC] to enter the DSC menu.

w Push [Y] or [Z] to select “

,” then push [DSC].

t Push [DSC] to transmit the Position Request call.

Scrolls

e Push [Y] or [Z] to select the desired pre-programmed in-

dividual address.

• The ID code for position request must be set in advance. (p. 14)

While transmitting

y After the Position Request call has been transmitted, the

following indication is displayed.

• “

” scrolls at the channel comment indicator.

Scrolls

u Push any key to exit the condition and return to the normal

operation.

DSC OPERATION 6

D Transmitting Position Report call

Transmit a Position Report call when you want to announce

your own position to a speciﬁc ship and to get an answer, etc.

r Push [DSC] to enter the standby condition for Position Re-

port call.

• Channel 70 is selected and “

” appears.

q Push [DSC] to enter the DSC menu.

w Push [Y] or [Z] to select “

,” and push [DSC].

t Push [DSC] to transmit the Position Report call.

Scrolls

e Push [Y] or [Z] to select the desired pre-programmed in-

dividual address.

• The ID code for the position report call can be set in advance.

(p. 14)

While transmitting

y After the Position Report call has been transmitted, stand

by on Channel 70 until an acknowledgement is received.

• “

” scrolls at the channel comment indicator.

Scrolls

u Push any key to exit the condition and return to the normal

operation.

DSC OPERATION

I Receiving DSC calls

D Receiving a Distress call

While monitoring Channel 70 and a Distress call is received:

➥ The emergency alarm sounds.

D Receiving a Distress acknowledgement

While monitoring Channel 70 and a Distress acknowledge-

ment to other ship is received:

• Push any key to stop the alarm.

➥ The emergency alarm sounds.

➥ “DSC” appears and “

” scrolls at the channel

• Push any key to stop the alarm.

comment indicator, then Channel 16 is automatically se-

➥ “DSC” appears and “

” scrolls at the chan-

lected.

nel comment indicator, then Channel 16 is automatically

selected.

➥ Continue monitoring Channel 16 as a coast station may re-

quire assistance.

Scrolls

D Receiving a Distress Relay call

While monitoring Channel 70 and a Distress Relay acknowl-

edgement is received:

➥ The emergency alarm sounds.

• Push any key to stop the alarm.

➥ “DSC” appears and “

” scrolls at the channel com-

ment indicator, then Channel 16 is automatically selected.

Scrolls

DSC OPERATION 6

D Receiving an Individual call

While monitoring Channel 70 and an Individual call is re-

ceived:

➥ The emergency alarm or beeps sound depending on the

received category.

D Receiving a Group call

While monitoring Channel 70 and a Group call is received:

➥ The emergency alarm or beeps sound depending on the

received category.

➥ “DSC” appears and “

” scrolls at the channel

➥ “DSC” appears and “

” scrolls at the channel

comment indicator.

➥ Push any key to stop beep, then push [DSC] to select the

channel speciﬁed by the calling station for voice commu-

nication; push any other key to ignore the Group call.

➥ Push any key to stop beep, then push [DSC] to reply the

call and select the channel speciﬁed by the calling station

for voice communication (depending on your replying con-

dition see p. 18 for individual acknowledgement call pro-

cedure for details.); push any other key to ignore the Indi-

vidual call.

Scrolls

DSC OPERATION

D Receiving an All Ships call

D Receiving a Geographical Area call

While monitoring Channel 70 and a Geographical Area call

(for the area you are in) is received:

➥ The emergency alarm or beeps sound depending on the

received category.

While monitoring Channel 70 and an All Ships call is received:

➥ The emergency alarm sounds when the category is ‘Dis-

tress’ or ‘Urgency’; 2 beeps sound for other categories.

➥ “DSC” appears and “

” scrolls at the channel

comment indicator.

➥ “DSC” appears and “

” scrolls at the chan-

➥ Push any key to stop beep, then push [DSC] to monitor

channel 16 for an announcement from the calling vessel,

push any other key to ignore the call.

nel comment indicator.

➥ Push any key to stop the beep, then push [DSC] to change

to the channel specified by the calling station for voice

communication; push any other key to ignore the Geo-

graphical Area call.

➥ Monitor the selected channel for an announcement from

the calling station.

Scrolls

When no GPS receiver is connected or if there is a prob-

lem with the connected receiver, all Geographical Area

calls are received, regardless of your position.