INSTRUCTION MANUAL
VHF MARINE TRANSCEIVER
iM602
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
FOREWORD
Thank you for purchasing this Icom product. The ICM602 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.
We want to take a couple of moments of your time to thank you for making the IC-M602 your radio of choice, and hope you agree with Icom’s philosophy of “technology first.” Many hours of research and development went into the design of your IC-M602.
D FEATURES
Standard 4×8″ flush mount design
Built-in DSC meets ITU Class D requirement
Rugged waterproof construction
Large LCD with dot matrix characters
Superior receiver performance
Optional COMMANDMICTM (2 systems are connectable)
IMPORTANT
READ THIS INSTRUCTION MANUAL CAREFULLY before attempting to operate the transceiver.
SAVE THIS INSTRUCTION MANUAL. This manual contains important safety and operating instructions for the IC-M602.
CLEAN THE TRANSCEIVER AND MICROPHONE THOROUGHLY WITH FRESH WATER after exposure to water including salt water, otherwise, the keys and switches may become inoperable due to salt crystallization.
Icom, Icom Inc. and the 
logo are registered trademarks of Icom Incorporated (Japan) in the United states, the United Kingdom, Germany, France, Spain, Russia and/or other countries.
i
IN CASE OF EMERGENCY
If your vessel requires assistance, contact other vessels and the Coast Guard by sending a distress call on Ch 16.
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).
4.“LOCATED AT ...............” (your position)
5.The nature of the distress and assistance required.
6.Any other information which might facilitate the rescue.
Or, transmit your distress call using digital selective calling on Ch 70.
USING DIGITAL SELECTIVE CALLING (Ch 70)
DISTRESS CALL PROCEDURE
1.While lifting up the switch cover, push and hold [DISTRESS] for 5 sec. until you hear 5 short beeps change to one long beep.
2.Wait for an acknowledgment from a coast station.
• Channel 16 is automatically selected.
3.Push and hold [PTT], then transmit the appropriate information as at above.
NOTE
A WARNING STICKER is supplied with the transceiver.
To comply with FCC regulations, this sticker must be affixed in such a location as to be readily seen from the operating controls of the radio as in the diagram below. Make sure the chosen location is clean and dry before applying the sticker. (p. 48)
EXAMPLE
WARNING
STICKER
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 minimum 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.
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.
iii
TABLE OF CONTENTS
FOREWORD ............................................. |
i |
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IMPORTANT .............................................. |
i |
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IN CASE OF EMERGENCY ...................... |
ii |
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NOTE ........................................................ |
ii |
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RADIO OPERATOR WARNING ............... |
iii |
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TABLE OF CONTENTS ........................... |
iv |
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PRECAUTION .......................................... |
v |
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1 |
OPERATING RULES .................. |
1 |
2 |
PANEL DESCRIPTION .......... |
2 – 7 |
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■ Panel description ............................ |
2 |
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■ Function display .............................. |
6 |
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■ Microphone (HM-136) ..................... |
7 |
3 |
BASIC OPERATION ............ |
8 – 13 |
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■ Channel selection ........................... |
8 |
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■ Receiving and transmitting ........... |
10 |
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■ Call channel programming ............ |
11 |
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■ Channel comments ....................... |
11 |
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■ Optional voice scrambler operation ... 13 |
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4 |
DUALWATCH/TRI-WATCH ... |
14–15 |
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■ Description .................................... |
14 |
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■ Operation ...................................... |
15 |
5 |
SCAN OPERATIONS ......... |
16 – 17 |
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■ Scan types .................................... |
16 |
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■ Setting tag channels ..................... |
17 |
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■ Starting a scan .............................. |
17 |
6 |
DSC OPERATION .............. |
18 – 39 |
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■ MMSI code programming ............. |
18 |
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■ Position and time programming .... |
18 |
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■ Position indication ......................... |
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19 |
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■ Distress call .................................. |
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20 |
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■ Transmitting DSC calls ................. |
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22 |
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■ Setting the distress information .... |
30 |
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■ DSC individual ID ......................... |
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31 |
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■ Receiving DSC calls ..................... |
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34 |
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■ DSC set mode .............................. |
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36 |
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■ Received messages ..................... |
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38 |
7 |
OTHER FUNCTIONS .......... |
40–46 |
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■ Intercom operation ........................ |
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40 |
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■ Hailer operation ............................ |
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41 |
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■ Automatic fog horn ........................ |
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42 |
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■ Microphone lock function .............. |
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43 |
8 |
SET MODE ........................ |
44 – 47 |
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■ Set mode programming ................ |
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44 |
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■ Set mode items ............................. |
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45 |
9 |
CONNECTIONS AND |
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MAINTENANCE ................. |
48 – 53 |
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■ Supplied accessories .................... |
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48 |
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■ Antenna ........................................ |
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48 |
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■ Fuse replacement ......................... |
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48 |
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■ Cleaning ....................................... |
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48 |
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■ Connections .................................. |
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49 |
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■ Mounting the transceiver .............. |
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50 |
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■ Optional unit installation ............... |
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52 |
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■ Dimensions ................................... |
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53 |
10 |
TROUBLESHOOTING .............. |
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54 |
11 CHANNEL LIST ........................ |
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55 |
12 SPECIFICATIONS AND |
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OPTIONS ........................... |
56 – 57 |
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■ Specifications ............................... |
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56 |
■ Options ......................................... |
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57 |
13 HM-127 REMOTE-CONTROL |
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MICROPHONE ................... |
58 – 70 |
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■ Panel description .......................... |
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58 |
■ Function display ............................ |
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60 |
■ HM-127 supplied accessories |
...... |
61 |
■ Installation .................................... |
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62 |
■ Channel selection ......................... |
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64 |
■ Receiving and transmitting ........... |
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65 |
■ RF attenuator function .................. |
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65 |
■ Lock functions ............................... |
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66 |
■ Display backlighting ...................... |
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66 |
■ Monitor function ............................ |
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66 |
■ Call channel programming ............ |
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67 |
■ Optional voice scrambler operation ... |
67 |
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■ Starting a scan .............................. |
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68 |
■ Setting tag channels ..................... |
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68 |
■ Dualwatch/Tri-watch operation ..... |
68 |
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■ Set mode programming ................ |
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69 |
■ Intercom operation ........................ |
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70 |
■ Channel comments ....................... |
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70 |
TEMPLATE |
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1
2
3
4
5
6
7
8
9
10
11
12
13
iv
PRECAUTION
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 expressly approved by Icom Inc., could void your authority to operate this device under FCC regulations.
NEVER connect the transceiver to a power source of more than 16 V DC or use reverse polarity. This will ruin the transceiver.
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.
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.
BE CAREFUL! The transceiver and optional HM-127 employ waterproof construction, which corresponds to JIS waterproof specification, Grade 7 (1 m/30 min.). However, once the transceiver or microphone has been dropped, waterproofing cannot be guaranteed due to the fact that the case may be cracked, or the waterproof seal damaged, etc.
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 temperatures 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 alcohol when cleaning, as they may damage the transceiver
v surfaces.
EXPLICIT DEFINITIONS
WORD |
DEFINITION |
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Personal injury, fire hazard or electric RWARNING shock may occur.
CAUTION Equipment damage may occur.
If disregarded, inconvenience only. No NOTE risk or personal injury, fire or electric
shock.
DPRIORITIES
•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.
•You must monitor Channel 16 when you are not operating on another channel.
•False or fraudulent distress signals are prohibited and punishable by law.
DPRIVACY
•Information overheard but not intended for you cannot lawfully be used in any way.
•Indecent or profane language is prohibited.
DRADIO 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.
OPERATING RULES 1 
(2) OPERATOR’S LICENSE |
1 |
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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.
The Restricted Radiotelephone Operator Permit must be posted or kept with the operator. Only a licensed radio operator may operate a transceiver.
However, non-licensed individuals may talk over a transceiver if a licensed operator starts, supervises, ends the call and makes the necessary log entries.
Keep a copy of the current government rules and regulations handy.
Radio license for boaters (U.S.A. only)
The Telecommunications Act of 1996 permits recreational boaters to have and use a VHF marine radio, EPIRB, and marine radar without having an FCC ship station license. Boaters traveling on international voyages, having an HF single sideband radiotelephone or marine satellite terminal, 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.
1
2 |
PANEL DESCRIPTION |
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■ Panel description |
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VHF MARINE |
iM602 |
Function |
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display |
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Speaker |
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!2 |
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WATERPROOF |
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U/I/C |
!1 |
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9 |
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MIC |
H/L |
CH/WX |
16 |
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VOL |
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SQL |
DISTRESS |
MIC connector |
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(Connect |
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HM-136 ONLY) |
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CAUTION: |
NEVER connect |
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e r |
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y u i o |
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other microphones here, such as |
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the optional |
HM-127, may cause |
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damage to the transceiver. |
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2
qTRANSMIT POWER SWITCH [H/L]
Toggles high or low power when pushed. (p. 10)
•Some channels are set to low power only.
While pushing this switch, some switches perform secondary functions.
wVOLUME CONTROL [VOL] (P. 10) Adjusts the audio level.
eSQUELCH CONTROL [SQL] (P. 10) Sets the squelch threshold level.
rCHANNEL SWITCH [CH/WX•U/I/C] (p. 9)
Selects and toggles the regular channels or weather channel when pushed momentarily.
While pushing [H/L], push to select one of 3 regular channels in sequence.
•International, U.S.A. and Canadian channels are available for regular channels.
tCHANNEL SELECTOR [CHANNEL] (p. 10)
Rotate [CHANNEL] to select the operating channels, set mode contents, etc.
PANEL DESCRIPTION 2
y CHANNEL 16/CALL CHANNEL SWITCH [16•9] |
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Selects Channel 16 when pushed. (p. 8) |
2 |
Selects call channel when pushed for 1 sec. (p. 8) |
•“CALL” appears when call channel is selected.
Push for 3 sec. to enter call channel programming condition when call channel is selected. (p. 11)
While pushing [H/L], enters memory name programming condition. (p. 11)
While turning power ON, enters set mode when pushed and held. (p. 44)
uPOWER SWITCH [POWER]
Push to turn the transceiver power ON or OFF.
iCLEAR SWITCH [CLR]
Push to cancel the entered function.
oDISTRESS SWITCH [DISTRESS] (p. 20) Transmits distress call when pushed for 5 sec.
!0FUNCTION SWITCH [F]
After pushing, activates the secondary functions.
•“F” appears when a secondary function can be accessed.
!1DSC MENU SWITCH [MENU] (P. 18)
Toggles the DSC menu ON or OFF when pushed.
3
2 PANEL DESCRIPTION
!2KEYPAD
Inputs the numeral “1” for channel number input, etc.
Inputs “1,” “Q,” “Z,” “q,” “z” or space for channel comment input.
After pushing [F], turns the dualwatch function ON or OFF. (p. 15)
Inputs the numeral “2” for channel number input, etc.
Inputs “2,” “A,” “B,” “C” “a,” “b” or “c” for channel comment input.
After pushing [F], turns the tri-watch function ON or OFF. (p. 15)
Inputs the numeral “3” for channel number input, etc.
Inputs “3,” “D,” “E,” “F,” “d,” “e” or “f” for channel comment input.
After pushing [F], push this switch and rotate [CHANNEL] to adjust the brightness of the LCD and switch backlight.
Inputs the numeral “4” for channel number input, etc.
Inputs “4,” “G,” “H,” “I,” “g,” “h” or “i” for channel comment input.
After pushing [F], starts or stops the scan function. (p. 17)
4
Inputs the numeral “5” for channel number input, etc.
Inputs “5,” “J,” “K,” “L,” “j,” “k” or “l” for channel comment input.
After pushing [F], sets the displayed channel as a tag (scanned) channel. (p.17)
While pushing [H/L], push for 3 sec. to clear all tag channels. (p.17)
Inputs the numeral “6” for channel number input, etc.
Inputs “6,” “M,” “N,” “O,” “m,” “n” or “o” for channel comment input.
After pushing [F], turns the attenuator function ON or OFF. (p. 10)
•“LOCAL” appears when the attenuator is in use.
Inputs the numeral “7” for channel number input, etc.
Inputs “7,” “P,” “R,” “S,” “p,” “r” or “s” for channel comment input.
After pushing [F], turns the hailer function ON or OFF. (p. 41)
Inputs the numeral “8” for channel number input, etc.
Inputs “8,” “T,” “U,” “V,” “t,” “u” or “v” for channel comment input.
After pushing [F], turns the auto fog horn function ON or OFF. (p. 43)
PANEL DESCRIPTION 2
Inputs the numeral “9” for channel number input, etc.
Inputs “9,” “W,” “X,” “Y,” “w,” “x” or “y” for chan- |
2 |
nel comment input. |
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After pushing [F], turns the intercom function ON or OFF. (p. 40)
Inputs the numeral “0” for channel number input, etc.
Push for 1 sec. to edit “A” channel for channel number input.
Inputs “0” and symbols (“–” “/” “.”) for channel comment input.
After pushing [F], activates an optional voice scrambler function. (p. 13)
•The optional voice scrambler function cannot be used on Channel 16 and 70.
Fixes input of channel number and channel comment, etc.
Clears entered digits and retrieves the previous frequency, channel or channel names during setting.
5
2 PANEL DESCRIPTION
■ Function display
!3 !2 !1 !0 o
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BUSY-25W---INT---CALL |
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LOCAL--DUP |
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SCRAM TAG |
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r |
NORMAL-SCAN |
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t |
-34"34.506N |
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123"23.236W |
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Local--1:10--CALLING |
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qBUSY/TRANSMIT INDICATOR (p. 10)
“BUSY” appears when receiving a signal or when the squelch opens.
“TX” appears while transmitting.
wRECEIVER ATTENUATOR INDICATOR (p. 10) “LOCAL” appears when the receiver attenuator is in use.
eSCRAMBLER INDICATOR (p. 13)
“SCRAM” appears when an optional voice scrambler is activated.
rSCAN INDICATOR
Either “NORMAL SCAN” or “PRI-SCAN 16” scan type appears while scanning. (p. 17)
“DUAL 16” appears during dualwatch; “TRI 16” appears during tri-watch. (p. 15)
tPOSITION INDICATOR
Shows the GPS position data.
•“??” may blink every 2 sec. instead of position data when the GPS position data is invalid. In such a case, the last position data is held for up to 23.5 hours.
•“??” may blink every 2 sec. instead of position data 4 hours after the position data is input manually, up until 23.5 hours have past.
“No Position” appears when no GPS receiver is connected and no position data is input manually.
yTIME ZONE INDICATOR
“Local” appears when the offset time data in the ‘Set up’ menu is entered. (p. 36)
“No Time” appears when no GPS receiver is connected and no time data is input manually.
uCHANNEL COMMENT INDICATOR
Channel comment appears if programmed. (p. 11)
“Low Batt” flashes when the battery voltage drops to approx. 10 V DC or below.
6
iCHANNEL NUMBER READOUT
Indicates the selected operating channel number.
“A” appears when a simplex channel is selected. (p. 9) “b” appears when a receive only channel for a Canadian channel group is selected.
“F” appears when [F] switch is pushed.
o CALL CHANNEL INDICATOR (p. 8)
“CALL” appears when the call channel is selected.
!0CHANNEL GROUP INDICATOR (p. 9)
Indicates whether an International “INT,” U.S.A. “USA,” Canadian “CAN” or weather “WX” channel is selected.
!1DUPLEX INDICATOR (p. 9)
Appears when a duplex channel is selected.
!2POWER INDICATOR (p. 10)
“25W” appears when high power is selected.
“1W” appears when low power is selected.
!3TAG CHANNEL INDICATOR (p. 17) Appears when a tag channel is selected.
PANEL DESCRIPTION 2
■ Microphone (HM-136)
2
q
Speaker
Microphone
16/9
w
e
qPTT SWITCH [PTT] (p. 10)
Push and hold to transmit; release to receive.
wCHANNEL UP/DOWN SWITCHES [Y]/[Z] (P. 10)
Push either switch to change the operating channel, set mode contents, etc.
eCHANNEL 16/CALL CHANNEL SWITCH [16/9]
Push to select Channel 16; push for 1 sec. to Channel 9. (p. 8)
While pushing [16/9], turn power ON to toggle the lock function ON or OFF. (p. 43)
7
3 BASIC OPERATION
■ Channel selection
DChannel 16
Channel 16 is the distress and safety channel. It is used for establishing initial contact with another station and for emergency communications. Channel 16 is monitored during both dualwatch and tri-watch. While standing by, you must monitor Channel 16.
Push [16•9] momentarily to select Channel 16.
Push [CH/WX•U/I/C] to return to the condition before selecting Channel 16, or rotate [CHANNEL] to select operating channel.
9
Push 16
BUSY-25W---INT---CALL LOCAL--DUP
SCRAM--TAG
NORMAL-SCAN
-34"34.206N 123"23.236W --UTC-10:10--CALLING
DChannel 9 (Call channel)
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. 11) and are used to store your most often used channels in each channel group for quick recall.
Push [16•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.
Push [CH/WX•U/I/C] to return to the condition before selecting the call channel, or rotate [CHANNEL] to select an operating channel.
9
Push for |
16 |
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1 sec. |
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BUSY-25W---INT---CALL LOCAL--DUP
SCRAM--TAG
NORMAL-SCAN
-34"34.206N 123"23.236W --UTC-10:10--CALLING
8
DU.S.A., Canadian and International channels
There are 57 U.S.A., 61 Canadian and 57 International channels. These channel groups may be specified for the operating area.
qPush [CH/WX•U/I/C] to select a regular channel.
• If a weather channel appears, push [CH/WX•U/I/C] again.
wWhile pushing [H/L], push [CH/WX•U/I/C] to change the channel group, if necessary.
•U.S.A., International (INT) and Canadian channels can be selected in sequence.
eRotate [CHANNEL] to select a channel.
•“DUP” appears for duplex channels.
•“A” appears for simplex channels.
USA
U.S.A. channels
Push |
H/L + CH/WX |
CAN |
INT |
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DUP |
Canadian channels International channels
BASIC OPERATION 3
DWeather channels
There are 10 weather channels. Used for monitoring weather |
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channels from the NOAA (National Oceanographic and At- |
3 |
mospheric Administration) broadcasts. |
The transceiver can detect a weather alert tone on the selected weather channel while receiving that channel, during standby on a regular channel or while scanning. See “Weather alert” on p. 45.
qPush [CH/WX•U/I/C] once or twice to select a weather channel.
•“WX” appears when a weather channel is selected.
•“WX ALERT” appears when the weather alert function is in use. (p. 45)
Push once or twice CH/WX
WX |
WX ALERT |
When weather alert is OFF. When weather alert is ON.
w Rotate [CHANNEL] to select a channel.
9
3 BASIC OPERATION
■ Receiving and transmitting
CAUTION: Transmitting without an antenna may dam- 
age the transceiver.
q Push [POWER] to turn power ON.
wSet the audio and squelch levels.
Rotate [SQL] fully counterclockwise in advance.
Rotate [VOL] to adjust the audio output level.
Rotate [SQL] clockwise until the noise disappears.
eTo change the channel group, push [CH/WX•U/I/C] while pushing [H/L]. (p. 9)
rRotate [CHANNEL] or push [Y]/[Z] on the microphone to select the desired channel.
•When receiving a signal, “BUSY” appears and audio is emitted from the speaker.
•Further adjustment of [VOL] may be necessary at this point.
•Use the optional voice scrambler function for privacy. (p. 13)
t Push [F], then push [6 LO/DX] to turn the receive attenua-
tor function ON or OFF if necessary.
•“LOCAL” appears when the receive attenuator is in use. y Push [H/L] to select the output power if necessary.
•“25W” or “1W” appears when high or low power is selected, respectively.
•Choose low power to conserve power, choose high power for longer distance communications.
•Some channels are for low power only.
uPush and hold [PTT] to transmit, then speak into the microphone.
•“TX” appears.
•Channel 70 cannot be used for transmission.
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.
i Release [PTT] to receive.
IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few sec. after pushing [PTT], hold
the microphone 1 to 2 inches (2.5 to 5 cm) from your 
mouth and speak at a normal voice level.
y e |
t u i |
VHF MARINE iM602 |
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MIC
VOL |
SQL |
w |
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WATERPROOF |
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9 |
16/9 |
r q |
r |
10
■ Call channel programming
The call channel is used to select Channel 9, however, you can program your most often-used channels in each channel group for quick recall.
qWhile pushing [H/L], push [CH/WX•U/I/C] one or more times to select the desired channel group (U.S.A., International, Canada) to be programmed.
wPush [16•9] for 1 sec. to select the call channel of the se-
lected channel group.
• “CALL” and call channel number appear.
e Push [16•9] again for 3 sec. (until a long beep changes to 2 short beeps) to enter call
channel programming condition.
• Channel number starts blinking.
r Rotate [CHANNEL] to select the desired channel.
t Push [16•9] to program the displayed channel as the call channel.
• Push [CH/WX•U/I/C] to cancel.
•The channel number stops blinking.
BASIC OPERATION 3
3
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3 BASIC OPERATION
•Available characters
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Q Z q z (space) |
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M N O m n o |
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2 A B C a b c |
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7 P R S p r s |
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3 D E F d e f |
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8 T U V t u v |
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4 G H I g h i |
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9 W X Y w x y |
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5 J K L j k l |
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0 - / . |
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12
BASIC OPERATION 3
■ Optional voice scrambler operation
DActivating the scrambler
The optional voice scrambler provides private communications. In order to receive or send scrambled transmissions you must first activate the scrambler function. To activate the function, an optional UT-112 is necessary. See p. 47 for setting the scrambler unit. Ask your dealer for details.
The scrambler function automatically turns OFF when 
Channel 16 or 70 is selected.
q Select an operating channel other than Channel 16 and 70.
wPush [F], then push [0 SCRM] to turn the optional scrambler function ON.
• “SCRAM” appears.
eTo turn the scrambler function OFF, repeat step w.
• “SCRAM” disappears.
DProgramming scrambler codes
There are 32 codes (1 to 32) available for programming when |
3 |
the optional UT-112 is installed. In order to understand one another, all transceivers in your group must have the same scramble code. This function may not be available depending on dealer setting.
q Turn power OFF.
w While pushing [16•9], turn power ON to enter set mode. e After the display appears, release [16•9].
rRotate [CHANNEL] to select the “Scrambler Code,” push [ENT].
t Rotate [CHANNEL] to select the desired scrambler code. y Push [ENT] to set and exit the scrambler code item.
uRotate [CHANNEL] to select “Exit,” then push [ENT] to exit set mode.
[Example]: Programming scrambler code 8.
9 |
--Set Mode-- |
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--Set Mode-- |
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--Set Mode-- |
˘Scan Type |
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˘Internal Speaker |
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Scrambler Code |
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16 + POWER |
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˘Contrast |
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˘9 |
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Enter set mode |
˘WX Alert |
Select item |
˘RF Attenuator |
Select code |
˘8 |
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˘Dual/Tri COMMANDMIC |
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˘Foghorn Frequency |
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˘7 |
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˘Beep |
then push |
˘Scrambler Type |
then push |
˘6 |
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˘Internal Speaker |
ENT |
˘Scrambler Code |
ENT |
˘5 |
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˘Contrast |
˘Exit |
˘<ENT˘OK> |
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13
4 DUAL WATCH/TRI-WATCH
■ Description
Dualwatch monitors Channel 16 while you are receiving another channel; tri-watch monitors Channel 16 and the call channel while receiving another channel.
DUALWATCH/TRI-WATCH SIMULATION
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].
14
■ Operation
q Select the desired operating channel.
wPush [F], then push [1 DUAL] to start dualwatch or [2 TRI] to start tri-watch.
•“DUAL” appears during dualwatch; “TRI” appears during triwatch.
•A beep tone sounds when a signal is received on Channel 16. e To cancel dualwatch or tri-watch, push [CLR] or repeat
step w.
[Example]: Operating dualwatch on INT Channel 25.
BUSY-25W---INT---CALL LOCAL--DUP
SCRAM--TAG
DUALAL-SC16
-34"34.206N 123"23.236W --UTC-10:10-TELEPHONE
BUSY-25W---INT---CALL LOCAL--DUP
SCRAM--TAG
DUALAL-SC16
-34"34.206N 123"23.236W --UTC-10:10-TELEPHONE
BUSY-25W---INT---CALL LOCAL--DUP
SCRAM--TAG
DUALAL-SC16
-34"34.206N 123"23.236W --UTC-10:10-TELEPHONE
Tri-watch starts.
Signal received on Channel 16 takes priority.
Dualwatch resumes after the signal disappears.
DUAL WATCH/TRI-WATCH 4
[Example]: Operating tri-watch on INT Channel 25.
BUSY-25W---INT---CALL |
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LOCAL--DUP |
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SCRAM--TAG |
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TRIMAL-SC16 |
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-34"34.206N |
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123"23.236W |
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--UTC-10:10-TELEPHONE |
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BUSY-25W---INT---CALL |
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LOCAL--DUP |
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SCRAM--TAG |
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TRIMAL-SC16 |
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-34"34.206N |
on call channel. |
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123"23.236W |
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--UTC-10:10--CALLING |
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BUSY-25W---INT---CALL |
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LOCAL--DUP |
Signal received on |
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SCRAM--TAG |
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TRIMAL-SC16 |
Channel 16 takes |
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-34"34.206N |
priority. |
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123"23.236W |
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--UTC-10:10-TELEPHONE |
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BUSY-25W---INT---CALL |
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TRIMAL-SC16 |
after the signal |
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-34"34.206N |
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disappears. |
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123"23.236W |
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--UTC-10:10-TELEPHONE |
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5 SCAN OPERATIONS
■ Scan types
Scanning is an efficient way to locate signals quickly over a wide frequency range. The transceiver has priority scan and normal scan.
When the weather alert function is in use, the selected weather channel is checked while scanning. (p. 45)
PRIORITY SCAN
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CH 01 |
CH 02 |
CH 06 |
CH 16 |
CH 03 |
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CH 05 |
CH 04 |
Priority scan searches through all tag channels in sequence while monitoring Channel 16. When a signal is detected on Channel 16, scan pauses until the signal disappears; when a signal is detected on a channel other than Channel 16, scan becomes dualwatch until the signal disappears.
Set the tag channels (scanned channel) before scanning. Clear the tag channels which inconveniently stop scanning, such as those for digital communication use.
Choose priority or normal scan in set mode. (p. 45)
NORMAL SCAN
CH 01 |
CH 02 |
CH 06 |
CH 03 |
CH 05 |
CH 04 |
Normal scan, like priority scan, searches through all tag channels in sequence. However, unlike priority scan, Channel 16 is not checked unless Channel 16 is set as a tag channel.
16
■ Setting tag channels
For more efficient scanning, add desired channels as tag channels or clear tag channels for unwanted channels. Channels set as non-tag channels will be skipped during scanning. Tag channels can be assigned to each channel group (U.S.A., International, Canada) independently.
qWhile pushing [H/L], push [CH/WX•U/I/C] one or more times to select the desired channel group, if desired.
w Select the desired channel to set as a tag channel.
ePush [F], then push [5 TAG] to set the displayed channel
as a tag channel.
• “TAG” appears in the display.
rTo cancel the tag channel setting, repeat step e.
• “TAG” disappears.
• Clearing all tag channels in the selected channel group
While pushing [H/L], push [5 TAG] for 3 sec. to clear all tag channels in the channel group.
SCAN OPERATION 5
■ Starting a scan
Set scan type (priority or normal scan) and scan resume timer in advance using set mode. (p. 45)
q Set tag channels as described at left. |
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w Make sure the squelch is closed to start a scan. |
eWhile pushing [H/L], push [CH/WX•U/I/C] one or more times to select the desired channel group, if desired.
rPush [F], then push [4 SCN] to start priority or normal scan.
•“PRI-SCAN 16” or “NORMAL SCAN” appears in the function display.
•When a signal is detected, scan pauses until the signal disappears or resumes after pausing 5 sec. according to set mode setting. (Channel 16 is still monitored during priority scan.)
•Rotate [CHANNEL] to check the scanning tag channels, to change the scanning direction or resume the scan manually.
•“16” blinks and a beep tone sounds when a signal is received on Channel 16 during priority scan.
t To stop the scan, push [CLR] or repeat step r.
[Example]: Starting a normal scan.
BUSY-25W---INT---CALL
LOCAL--DUP
SCRAM--TAG
NORMAL-SCAN
-34"34.206N 123"23.236W --UTC-10:10---INTL-
Push
then
4SCN
GHI
Scan starts.
BUSY-25W---INT---CALL LOCAL--DUP 
SCRAM--TAG 
NORMAL-SCAN 
-34"34.206N 
123"23.236W 
--UTC-10:10---INTL-
When a signal is received
BUSY-25W---INT---CALL LOCAL--DUP
SCRAM--TAG
NORMAL-SCAN
-34"34.206N 123"23.236W --UTC-10:10---INTL-
17
6 DSC OPERATION
■ MMSI code programming
The 9-digit MMSI (Maritime Mobile Service Identity: DSC self ID) code can be programmed at power ON.
This code programming can be performed only twice.
q Turn power OFF.
wWhile pushing [MENU], turn power ON to enter MMSI code programming condition.
e After the display appears, release [MENU]. r Push [MENU] to enter the DSC menu.
t Rotate [CHANNEL] to select “Set up,” push [ENT].
y Rotate [CHANNEL] to select “MMSI check,” push [ENT].
--DSC Menu-- MMSI Check
˘ä________
<CLR˘Exit / ENT˘OK>
uEdit the specific MMSI code directly with the keypad.
•Rotate [CHANNEL] to move the cursor backward or forward. i Input the 9 digit code, then push [ENT] to set the code.
•Returns to the DSC set up menu.
oRotate [CHANNEL] to select “Exit,” push [ENT].
•Returns to the DSC menu.
•Repeat again to return to the normal operation condition.
■ Position and time programming
A distress call should include the ship’s position and time. If no GPS is connected, your position and UTC (Universal Time Coordinated) time should be input. They are included automatically when a GPS receiver (NMEA0183 ver. 2.0) is connected.
This manual programming is not available when a GPS re- 
ceiver (NMEA0183 ver. 2.0) is connected.
q Push [MENU] to enter the DSC menu.
wRotate [CHANNEL] to select “Position Input,” push [ENT].
--DSC Menu-- Input Position Latitude
˘L_°__.___N˘˘˘˘˘˘˘˘Null Longitude
___°__.___W˘˘˘˘˘˘˘˘Null <CE˘Null Data>
<CLR˘Exit / ENT˘OK>
e Edit the digit of your latitude data directly with the keypad.
• Push [6•MNO ] to edit N; North latitude or [7• PRS ] to edit
S; South latitude.
•Rotate [CHANNEL] to move the cursor backward or forward.
•Push [CE] to clear the position data.
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