Cobra Electronics MRHH325 Handheld Marine Transceiver User Manual

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Document ID	733025
Application ID	oe4Apc58y0XDAp4X6DPRoQ==
Document Description	users manual
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Document Type	User Manual
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Filesize	308.17kB (3852110 bits)
Date Submitted	2006-11-29 00:00:00
Date Available	2006-11-30 00:00:00
Creation Date	2006-10-26 12:09:38
Producing Software	Acrobat Distiller 7.0 for Macintosh
Document Lastmod	2006-10-26 13:02:12
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MRHH325VPCover2.qxp:QXP-1058736909.qxp
10/26/06
12:08 PM
Page A1
Introduction
Our Thanks to You and
Customer Assistance
Our Thanks to You
Owner’s Manual
•
Thank you for purchasing a CobraMarine® VHF radio.
Properly used, this Cobra® product will give you
many years of reliable service.
How Your CobraMarine VHF Radio Works
This radio is a battery-powered portable transceiver for use afloat. It gives you
two-way vessel-to-vessel and vessel-to-shore station communications, primarily
for safety and secondarily for navigation and operational purposes. With it, you
can call for help, get information from other boaters, talk to lock or bridge tenders,
and make radiotelephone calls to anywhere in the world through a marine operator.
Besides two-way communications, the radio can provide quick access to receive
all the NOAA (National Oceanographic and Atmospheric Administration) weather
channels and alert you to weather emergencies with a tone on a weather channel
you can select for your area.
Customer Assistance
Customer Assistance
•
Should you encounter any problems with this product, or not understand
its many features, please refer to this owner’s manual. If you require further
assistance after reading this manual, Cobra Electronics offers the following customer
assistance services:
For Assistance in the U.S.A.
Automated Help Desk English only.
24 hours a day, 7 days a week 773-889-3087 (phone).
Printed in China Part No. 480-343-P
Customer Assistance Operators English and Spanish.
8:00 a.m. to 6:00 p.m. Central Time Mon. through Fri. (except holidays)
773-889-3087 (phone).
Questions English and Spanish.
Faxes can be received at 773-622-2269 (fax).
Technical Assistance English only.
www.cobra.com (on-line: Frequently Asked Questions).
English and Spanish. productinfo@cobra.com (e-mail).
VHF MARINE RADIO
MR HH325 VP
Nothing Comes Close to a Cobra®
For Assistance Outside the U.S.A.
Contact Your Local Dealer
English
A1 English
© 2007 Cobra Electronics Corporation™
6500 West Cortland Street
Chicago, Illinois 60707 USA
www.cobra.com
MRHH325VPCover2.qxp:QXP-1058736909.qxp
10/26/06
12:08 PM
Page A1
Introduction
Our Thanks to You and
Customer Assistance
Our Thanks to You
Owner’s Manual
•
Thank you for purchasing a CobraMarine® VHF radio.
Properly used, this Cobra® product will give you
many years of reliable service.
How Your CobraMarine VHF Radio Works
This radio is a battery-powered portable transceiver for use afloat. It gives you
two-way vessel-to-vessel and vessel-to-shore station communications, primarily
for safety and secondarily for navigation and operational purposes. With it, you
can call for help, get information from other boaters, talk to lock or bridge tenders,
and make radiotelephone calls to anywhere in the world through a marine operator.
Besides two-way communications, the radio can provide quick access to receive
all the NOAA (National Oceanographic and Atmospheric Administration) weather
channels and alert you to weather emergencies with a tone on a weather channel
you can select for your area.
Customer Assistance
Customer Assistance
•
Should you encounter any problems with this product, or not understand
its many features, please refer to this owner’s manual. If you require further
assistance after reading this manual, Cobra Electronics offers the following customer
assistance services:
For Assistance in the U.S.A.
Automated Help Desk English only.
24 hours a day, 7 days a week 773-889-3087 (phone).
Printed in China Part No. 480-343-P
Customer Assistance Operators English and Spanish.
8:00 a.m. to 6:00 p.m. Central Time Mon. through Fri. (except holidays)
773-889-3087 (phone).
Questions English and Spanish.
Faxes can be received at 773-622-2269 (fax).
Technical Assistance English only.
www.cobra.com (on-line: Frequently Asked Questions).
English and Spanish. productinfo@cobra.com (e-mail).
VHF MARINE RADIO
MR HH325 VP
Nothing Comes Close to a Cobra®
For Assistance Outside the U.S.A.
Contact Your Local Dealer
English
A1 English
© 2007 Cobra Electronics Corporation™
6500 West Cortland Street
Chicago, Illinois 60707 USA
www.cobra.com
MRHH325VPCover2.qxp:QXP-1058736909.qxp
Introduction
10/26/06
12:09 PM
Page A2
Radio Controls
and Indicators
Backlit LCD Screen
and Product Features
Introduction
Backlit LCD (Liquid Crystal Display) Screen
Speaker/
Microphone
External Cover
Antenna
Backlit
LCD
Screen
Channel Up
Button
Belt Clip
Engagement
ON/OFF/Volume
Control
Weather Icon
Squelch
Control
SCAN
Button
Call/Enter
Button
A2 English
Memory Channel Icon
Memory Channel
Voice Activate Transmit Icon
Tri-Watch Icon
Simplex Operation Icon
Battery Power Icon
Scan Icon
Battery
Clip
Key Tone Icon
Product Features
Roger Beep Icon
UIC Active Channel Map Icons
Power Settings
Selectable power settings produce
1, 3 or 5 watts of output power for near
or distant calling.
USA/International/Canada Channels
Allows operation on any of the three (3)
different channel maps established for
these areas.
Backlight/
Key Lock
Button
Speaker
Call Tone Icon
Button Lock Icon
Battery
Channel
Down
Button
Weather Alert Icon
Active Channel
Numbers
Wrist
Strap
Connector
Instant
Channel
16/9 Button
Tri-Watch
Button
•
Low/Medium/High Power Icons
Frequency
Band Icon
Push to
Talk
Button
Power
Level/Weather
Button
Transmit and Receive Icons
Memory/Escape
Button
Microphone
Instant Channel 16/9
Provides instant access to priority
Channel 16 and calling Channel 9.
•
Tri-Watch
Use to monitor three (3) channels
at once — Channel 16 and two (2)
programmable channels.
NiMH (Nickel-Metal Hydride) Battery
Sealed battery pack provides extended
operating time when compared to alkaline
batteries with no memory effect.
Six (6) high-quality AA alkaline batteries
Submersible to JIS7 Standards
may also be used for emergency backup
Waterproof to 3.3 ft (1 m) of water for 30 power — requires optional AA battery
minutes.
tray (P/N CM 110-011).
All NOAA Weather Channels
Instant access to all National Weather
Channels, 24 hours a day.
Button/Key Lock
Prevents accidental setting changes
when button lock is set.
120V/12V Charger Included
Use to charge battery pack, at home, in a
car or in a boat.
Channel Scan/Memory Scan
Use to scan through unlimited channels
or memory locations to find
conversations in progress.
Locking Desktop Charger
Holds the radio or battery in place while
charging. Vertical or horizontal mounting.
A3 English
Call Tones (Selectable)
10 selectable call tones.
MRHH325VPCover2.qxp:QXP-1058736909.qxp
Introduction
10/26/06
12:09 PM
Page A2
Radio Controls
and Indicators
Backlit LCD Screen
and Product Features
Introduction
Backlit LCD (Liquid Crystal Display) Screen
Speaker/
Microphone
External Cover
Antenna
Backlit
LCD
Screen
Channel Up
Button
Belt Clip
Engagement
ON/OFF/Volume
Control
Weather Icon
Squelch
Control
SCAN
Button
Call/Enter
Button
A2 English
Memory Channel Icon
Memory Channel
Voice Activate Transmit Icon
Tri-Watch Icon
Simplex Operation Icon
Battery Power Icon
Scan Icon
Battery
Clip
Key Tone Icon
Product Features
Roger Beep Icon
UIC Active Channel Map Icons
Power Settings
Selectable power settings produce
1, 3 or 5 watts of output power for near
or distant calling.
USA/International/Canada Channels
Allows operation on any of the three (3)
different channel maps established for
these areas.
Backlight/
Key Lock
Button
Speaker
Call Tone Icon
Button Lock Icon
Battery
Channel
Down
Button
Weather Alert Icon
Active Channel
Numbers
Wrist
Strap
Connector
Instant
Channel
16/9 Button
Tri-Watch
Button
•
Low/Medium/High Power Icons
Frequency
Band Icon
Push to
Talk
Button
Power
Level/Weather
Button
Transmit and Receive Icons
Memory/Escape
Button
Microphone
Instant Channel 16/9
Provides instant access to priority
Channel 16 and calling Channel 9.
•
Tri-Watch
Use to monitor three (3) channels
at once — Channel 16 and two (2)
programmable channels.
NiMH (Nickel-Metal Hydride) Battery
Sealed battery pack provides extended
operating time when compared to alkaline
batteries with no memory effect.
Six (6) high-quality AA alkaline batteries
Submersible to JIS7 Standards
may also be used for emergency backup
Waterproof to 3.3 ft (1 m) of water for 30 power — requires optional AA battery
minutes.
tray (P/N CM 110-011).
All NOAA Weather Channels
Instant access to all National Weather
Channels, 24 hours a day.
Button/Key Lock
Prevents accidental setting changes
when button lock is set.
120V/12V Charger Included
Use to charge battery pack, at home, in a
car or in a boat.
Channel Scan/Memory Scan
Use to scan through unlimited channels
or memory locations to find
conversations in progress.
Locking Desktop Charger
Holds the radio or battery in place while
charging. Vertical or horizontal mounting.
A3 English
Call Tones (Selectable)
10 selectable call tones.
MRHH325VPCover2.qxp:QXP-1058736909.qxp
Introduction
10/26/06
12:09 PM
Page A3
Product Features
Product Features (continued)
Hands-Free Operation Voice
Activation (VOX)
“Hands-Free” automatic transmission
when you speak.
Emergency Weather Alert
Receive NOAA alerts when threatening
weather is nearby.
Signal Strength Meter
Shows the strength of incoming or
outgoing signals.
•
Illuminated Buttons
Allows high visibility of all function
buttons.
Speaker/Mic Jack
Allows connecting optional Cobra Lapel
Speaker/Mic and other Cobra
accessories.
Roger Beep Tone (Selectable)
Confirmation tone indicates the
completion of the user’s transmission
and signals to others it is clear to talk.
On or Off selectable.
Unlimited Memory Channels
Allows programming of unlimited VHF
memory channels.
Patented VibrAlert®
Provides a silent alert for incoming calls.
Ideal for noisy or all-quiet environments.
A4 English
MRHH325VP-Body-Eng2:400_Body
Introduction
10/26/06
12:00 PM
Page 1
Table of Contents
Introduction
Our Thanks to You . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
Customer Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1
Radio Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A2
Backlit LCD (Liquid Crystal Display) Screen . . . . . . . . . . . . . . . . . . . . A3
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A3
Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Recommendations for Marine Communication . . . . . . . . . . . . . . . . . . 5
VHF Marine Radio Protocols
FCC Licensing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
VHF Marine Radio Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Voice Calling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Radiotelephone Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Emergency Messages and Distress Procedure . . . . . . . . . . . . . . . . . . 13
VHF Marine Channel Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
NOAA Weather Channels and Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Installation
Included in this Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Antenna, Wrist Strap and Belt Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Batteries and Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Operating Your Radio
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Setup Mode Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Standby/Receive and Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Advanced Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Warranty and Trademark
Limited 3-Year Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Trademark Acknowledgement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Customer Service
Product Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Nothing Comes Close to a Cobra®
MRHH325VP-Body-Eng2:400_Body
Introduction
10/26/06
12:00 PM
Page 2
Important Safety Information
Important Safety Information
Before installing and using your CobraMarine VHF radio, please read these
general precautions and warnings.
•
Warning and Notice Statements
To make the most of this radio, it must be installed and used properly.
Please read the installation and operating instructions carefully before installing and
using the radio. Special attention must be paid to the WARNING and NOTICE
statements in this manual.
WARNING
Statements identify conditions that could result in personal injury or loss of life.
NOTICE
Statements identify conditions that could cause damage to the radio
or other equipment.
Safety Training Information
This CobraMarine® radio is designed for, and classified as, “Occupational Use Only.”
The radio must only be used in the course of employment by individuals aware of
both the hazards and the ways to minimize those hazards. This radio is NOT
intended for use in an uncontrolled environment by the “General Population.”
This radio has been tested and complies with the FCC RF exposure limits for
“Occupational Use Only.” This CobraMarine VHF radio also complies with the
following guidelines and standards regarding RF energy and electromagnetic
energy levels as well as evaluation of those levels for human exposure:
 FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with
FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic
Fields.
American National Standards Institute (C95.1-1992), IEEE Standard for Safety
Levels with Respect to Human Exposure to Radio Frequency Electromagnetic
Fields, 3 kHz to 300 GHz.
American National Standards Institute (C95.3-1992), IEEE Recommended
Practice for the Measurement of Potentially Hazardous Electromagnetic
Fields — RF and Microwave.
English
MRHH325VP-Body-Eng2:400_Body
Introduction
10/26/06
12:00 PM
Page 3
Important Safety Information
The following WARNINGS and NOTICE information will make you aware of RF
exposure hazards and how to assure you operate the radio within the FCC RF
exposure limits established for the radio.
WARNINGS
Your radio generates electromagnetic RF (radio frequency) energy when it is
transmitting. To ensure that you and those around you are not exposed to
excessive amounts of that energy, DO NOT touch the antenna when transmitting
and KEEP yourself and all others on your vessel the required distance away from
the antenna while transmitting. See page 31 in the antenna requirements section
for further information.
DO NOT operate the radio without a proper antenna or equivalent dummy load
attached. Doing so may expose you to excessive RF energy and will damage the
radio.
DO NOT transmit more than 50% of the time the radio is in use — 50% duty
cycle. The radio is transmitting when the Talk button is pressed and the transmit
information shows on the LCD screen.
ALWAYS use only Cobra authorized accessories.
DO NOT operate the radio in an explosive atmosphere, near blasting sites, or in
any area where signs are posted prohibiting radio transmissions.
NEVER connect the transceiver directly to AC power. It can be a fire hazard, may
cause an electric shock and may damage the transceiver.
NEVER mount the transceiver or microphone/speaker where they might interfere
with operation of your vessel or cause injury.
DO NOT allow children or anyone unfamiliar with proper procedures to operate the
radio without supervision.
Failure to observe any of these warnings may cause you to exceed FCC RF
exposure limits or create other dangerous conditions.
Nothing Comes Close to a Cobra®
MRHH325VP-Body-Eng2:400_Body
Introduction
10/26/06
12:00 PM
Page 4
Important Safety Information
NOTICE
Your radio is waterproof only when the antenna and batteries are properly
installed.
AVOID using or storing the radio at temperatures below -4˚F (-20˚C) or above
140˚F (60˚C).
KEEP your radio at least 3 ft (0,9 m) away from your vessel’s magnetic navigation
compass.
DO NOT attempt to service any internal parts yourself. Have any necessary
service performed by a qualified technician.
This radio is supplied with an NiMH (Nickel-Metal Hydride) rechargeable battery
pack.
Use only the Cobra charger to recharge NiMH battery in the radio.
Do not short circuit the battery pack.
When replacing the battery, dispose of the old battery properly. The NiMH
battery may explode if disposed of in a fire.
Changes or modifications to your radio MAY VOID its compliance with FCC (Federal
Communications Commission) rules and make it illegal to use.
English
MRHH325VP-Body-Eng2:400_Body
Introduction
10/26/06
12:00 PM
Page 5
Recommendations for
Marine Communication
Recommendations for Marine Communication
•
The frequencies your radio uses are set aside to enhance safety afloat and for vessel
navigation and operational messages over a range suitable for nearshore voyages. If
the 5 watt maximum output of your radio is not sufficient for the distances you
travel from the coast, consider installing a CobraMarine fixed mount radio with up to
25 watts of output power. (Visit www.cobra.com or your local dealer for model
availability.)
If traveling far offshore, you should consider adding even more powerful radio
equipment such as HF single side band or satellite radio for your vessel.
The U.S. Coast Guard does not endorse cellular telephones as substitutes for marine
radios. They generally cannot communicate with rescue vessels and, if you make a
distress call on a cellular telephone, only the party you call will be able to hear you.
Additionally, cellular telephones may have limited coverage over water and can be
hard to locate. If you do not know where you are, the Coast Guard will have difficulty
finding you if you are using a cellular telephone.
However, cellular telephones can have a place on board where cellular coverage
is available — to allow social conversations and keep the marine frequencies
uncluttered and available for their intended uses.
Nothing Comes Close to a Cobra®
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:00 PM
Page 6
FCC Licensing Information
FCC Licensing Information
CobraMarine VHF radios comply with the FCC (Federal Communications
Commission) requirements that regulate the Maritime Radio Service.
The radio operates on all currently allocated marine channels and is switchable for
use according to U.S.A., International or Canadian regulations. It features instant
access to emergency Channel 16 and calling Channel 9 as well as NOAA (National
Oceanic and Atmospheric Administration) All Hazards Radio with Alert that can be
accessed by pressing one (1) button.
•
Station License
An FCC ship station license is no longer required for any vessel traveling in U.S.A.
waters which uses a VHF marine radio, RADAR, or EPIRB (Emergency Position
Indicating Radio Beacon), and which is not required to carry radio equipment.
However, any vessel required to carry a marine radio on an international voyage,
carrying an HF single side band radiotelephone, or carrying a marine satellite
terminal must obtain a station license.
FCC license forms and applications for ship and land stations can be downloaded
through the Internet at www.fcc.gov. Forms can also be obtained by calling the FCC
at 888-225-5322.
International Station License
If your vessel will be entering the sovereign waters of a country other than the
U.S.A. or Canada, you should contact that country’s communications regulatory
authority for licensing information.
Radio Call Sign
Currently, the FCC does not require recreational boaters to have a license. The
United States Coast Guard recommends that the boat’s registration number and
state of registry (e.g., IL 1234 AB) be used as a call sign and be clearly visible on
the vessel.
Canadian Ship Station License
You need a Radio Operator’s Certificate if your vessel is operated in Canadian waters.
Radio Operator training and certification is available from the Canadian Power
Squadron. Visit their website (http://www.cps-ecp.ca/english/newradiocard.html),
contact the nearest field office or write: Industry of Canada, Radio Regulatory
Branch, Attn: DOSP, 300 Slater Street, Ottawa, Ontario, Canada K1A 0C8.
English
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:00 PM
Page 7
FCC Licensing Information
User Responsibility and Operating Locations
All users are responsible for observing domestic and foreign government regulations
and are subject to severe penalties for violations. The VHF frequencies on your radio
are reserved for marine use and require a special license to operate from land,
including when your boat is on its trailer.
NOTE
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two (2) 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.
FCC Warnings: Replacement or substitution of transistors, regular diodes or
other parts of a unique nature, with parts other than those recommended by
Cobra may cause a violation of the technical regulations of part 80 of the FCC
Rules, or violation of type acceptance requirements of part 2 of the rules.
Nothing Comes Close to a Cobra®
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:00 PM
Page 8
VHF Marine Radio
Procedures
VHF Marine Radio Procedures
•
Maintain Your Watch
Whenever your boat is underway, the radio must be turned On and be tuned to
Channel 16 except when being used for messages.
Power
Try 1 watt first, if the station being called is within a few miles. If there is no answer,
switch to 3 watts and call again. You have the ability to go up to 5 watts of output
power to increase your calling distance. Remember, the lower wattage outputs will
conserve your battery and minimize interference to other users.
Calling Coast Stations
Call a coast station on its assigned channel. You may use Channel 16 when you do
not know the assigned channel.
Calling Other Vessels
Call other vessels on Channel 16 or on Channel 9. (Channel 9 is preferred for
recreational vessel use.) You may also call on ship-to-ship channels when you know
that the vessel is listening on a ship-to-ship channel.
Initial Calling on Channel 16 or 9
The use of Channel 16 is permitted for making initial contact (hailing) another
vessel. The limits on calling must be followed. Be reminded, Channel 16’s most
important function is for Emergency Messages. If for some reason, Channel 16 is
congested, the use of Channel 9, especially in U.S. waters, may be used as the initial
contact (hailing) channel for non-emergency communication.
Limits on Calling
You must not call the same station for more than 30 seconds at a time.
If you do not get a reply, wait at least two (2) minutes before calling again.
After three (3) calling periods, wait at least 15 minutes before calling again.
Change Channels
After contacting another station on a calling channel, change immediately
to a channel which is available for the type of message you want to send.
Station Identification
Identify, in English, your station by your FCC call sign, vessel name and the state
registration number, at both the beginning and at the end of the message.
English
MRHH325VP-Body-Eng2:400_Body
VHF Marine Radio Protocols
10/26/06
12:00 PM
Page 9
VHF Marine Radio
Procedures
Prohibited Communications
You MUST NOT transmit:
False distress or emergency messages.
Messages containing obscene, indecent or profane language.
General calls, signals or messages (messages not addressed to a particular
station) on Channel 16, except in an emergency or if you are testing your radio.
When you are on land.
Nothing Comes Close to a Cobra®
MRHH325VP-Body-Eng2:400_Body
VHF Marine Radio Protocols
10/26/06
12:00 PM
Page 10
Voice Calling
Voice Calling
•
You are required to listen to Channel 16 while standing by. Channel 16 is the
distress and safety channel used for establishing initial contact with another station
and for emergency communication. The Coast Guard also monitors Channel 16 for
safety purposes for everyone on the water.
NOTE
Channel 9 may be used by recreational vessels for general-purpose calling. This
frequency should be used whenever possible to help relieve congestion on
Channel 16. The Coast Guard generally does not make urgent marine
information broadcasts or weather warnings on Channel 9. Boaters are still
asked to “keep watch” on Channel 16 whenever the radio is turned on and not
in use with another station.
To call another vessel or shore installation (e.g, lock or bridge tender):
 Make sure the radio is On.
Make sure you are in standby listening mode on Channel 16. Make sure
Channel 16 is not in use.
When the channel is open (quiet), press the Talk button and call a vessel. Hold
the radio or microphone several inches from your face and speak clearly and
distinctly in a normal voice tone. Say “name or station being called,” “THIS IS
[your vessel name or call sign].”
Once contact is made, you must leave Channel 16 and go to another working
channel. See channel listing on pages 20-27.
For Example
The vessel Corsair is calling the vessel Vagabond:
Corsair: “Vagabond, this is Corsair. Over.”
Vagabond: “Please switch and answer on Channel 68 (or any proper working
channel). Over.”
Corsair: “Switching to Channel 68. Over.”
10 English
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:00 PM
Page 11
Voice Calling
If the other does not respond, wait two (2) minutes and repeat. You are
permitted to attempt contact three (3) times, two (2) minutes apart. If you still
have not made contact, wait 15 minutes before trying again.
After communications are completed, each vessel must sign off with its call
sign or vessel name and the word “out” and return to Channel 16.
NOTE
For best sound quality at the station you are calling, hold the microphone on
the front of the radio at least 2 in. (51 mm) from your mouth and slightly off to
one (1) side. Speak in a normal tone of voice.
NOTE
“Over and Out”
The most commonly misused procedure words are “over and out” within the
same transmission. “Over” means you expect a reply. “Out” means you are
finished and do not expect a reply.
Nothing Comes Close to a Cobra®
11
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:00 PM
Page 12
Radiotelephone Calls
Radiotelephone Calls
•
Boaters may make and receive radiotelephone calls to and from any number on the
telephone network by using the services of public coast stations. Calls can be made —
for a fee — between your radio and telephones on land, sea and in the air. See pages
20 through 27 for the public correspondence (marine operator) channels.
If you plan to use these services, consider registering with the operator of the
public coast station that you plan to work through. These services can provide
you with detailed information and procedures to follow.
NOTICE
You may disclose privileged information during a radiotelephone call.
Keep in mind that your transmission is NOT private, as it is on a regular
telephone. Both sides of the conversation are being broadcast and can be
heard by anyone who has a radio and tunes to the channel you are using.
12 English
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:00 PM
Page 13
Emergency Messages and
Distress Procedure
Emergency Messages and Distress Procedure
•
The ability to summon assistance in an emergency is the primary reason
to have a VHF marine radio. The marine environment can be unforgiving,
and what may initially be a minor problem can rapidly develop into a
situation beyond your control.
The Coast Guard monitors Channel 16, responds to all distress calls,
and coordinates all search and rescue efforts. Depending on the availability
of other capable vessels or commercial assistance operators in your vicinity,
Coast Guard or Coast Guard Auxiliary craft may be dispatched.
In any event, communicate with the Coast Guard as soon as you experience
difficulties and before your situation becomes an emergency. Use the emergency
message procedures only after your situation has become grave or you are faced
with a sudden danger threatening life or property and requiring immediate help. Use
Channel 16 to communicate your emergency message. Make sure you transmit on
high power. If you are merely out of gas, do not send an emergency message. Drop
your anchor and call a friend or marina to bring the fuel you need or to give you a
tow.
Nothing Comes Close to a Cobra®
13
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:00 PM
Page 14
Emergency Messages
and Distress Procedure
Marine Emergency Signals
The three (3) spoken international emergency signals are:
MAYDAY
The distress signal MAYDAY is used to indicate that a station is threatened by grave
and imminent danger and requests immediate assistance.
PAN
The urgency signal PAN is used when the safety of the vessel or person is in
jeopardy. (This signal is properly pronounced pahn.)
SECURITE
The safety signal SECURITE is used for messages about the safety of navigation or
important weather warnings. (This signal is properly pronounced see-cure-ee-tay.)
When using an international emergency signal, the appropriate signal is to be
spoken three (3) times prior to the message.
If You Hear a Distress Call
You must give any message beginning with one (1) of these signals priority over any
other messages. ALL stations MUST remain silent on Channel 16 for the duration of
the emergency unless the message relates directly to the emergency.
If you hear a distress message from a vessel, stand by your radio. If it is not
answered, YOU should answer. If the distressed vessel is not nearby, wait a short
time for others who may be closer to acknowledge. Even if you cannot render direct
assistance, you may be in a position to relay the message.
14 English
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:00 PM
Page 15
Emergency Messages
and Distress Procedure
Marine Distress Procedure
Speak slowly — clearly — calmly.
1. Make sure your radio is On.
2. Select Channel 16.
3. Press Talk button and say:
“MAYDAY — MAYDAY — MAYDAY.”
(Or “PAN — PAN — PAN,”
or “SECURITE — SECURITE — SECURITE.”)
4. Say:
“THIS IS [your vessel name or call sign],” repeated three (3) times.
5. Say:
“MAYDAY (or “PAN” or “SECURITE”)
[your vessel name or call sign].
6. Tell where you are:
(what navigational aids or landmarks are nearby).
7. State the nature of your distress.
8. State the kind of assistance needed.
9. Give number of persons aboard and conditions of any injured.
10. Estimate present seaworthiness of your vessel.
11. Briefly describe your vessel (length, type, color, hull).
12. Say:
“I WILL BE LISTENING ON CHANNEL 16.”
13. End message by saying:
“THIS IS [your vessel name or call sign]. OVER.”
14. Release Talk button and listen. Someone should answer.
If not, repeat the call, beginning at step 3 above.
Keep the radio nearby. Even after your message has been received, the Coast Guard
can find you more quickly if you can transmit a signal for a rescue boat to hone in on.
Nothing Comes Close to a Cobra®
15
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:00 PM
Page 16
Emergency Messages
and Distress Procedure
For Example
“Mayday — Mayday — Mayday”
“This is Corsair — Corsair — Corsair” [or “IL 1234 AB,” repeated three (3) times]
“Mayday Corsair (or IL 1234 AB)”
“Navy Pier bears 220 degrees magnetic — distance 5 miles”
“Struck submerged object and flooding — need pump and tow”
“Four (4) adults, three (3) children aboard — no one injured”
“Estimate we will remain afloat one-half hour”
“Corsair (or IL 1234 AB) is 26 ft sloop with blue hull and tan deck house”
“I will be listening on Channel 16”
“This is Corsair (or IL 1234 AB)”
“Over”
It is a good idea to write out a script of the message form and post it where you
and others on your vessel can see it when an emergency message needs to be sent.
16 English
MRHH325VP-Body-Eng2:400_Body
10/26/06
12:00 PM
Page 17
VHF
Marine Radio Protocols
Introduction
This page intentionally left blank
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17
MRHH325VP-Body-Eng2:400_Body
VHF Marine Radio Protocols
10/26/06
12:00 PM
Page 18
VHF Marine
Channel Assignments
VHF Marine Channel Assignments
•
Three (3) sets of VHF channels have been established for marine use in the U.S.A.,
Canada and the rest of the world (International). Most of the channels are the same
for all three (3) maps, but there are definite differences (see table on the following
pages). Your radio has all three (3) maps built into it and will operate correctly in
whichever area you choose.
The following is a brief outline of the channel assignments in the U.S.A.
Channel Map.
Distress, Safety, and Calling
Channel 16
Getting the attention of another station (calling) or in emergencies
(distress and safety).
Calling
Channel 9
General-purpose (non-emergency) calling by non-commercial vessels.
Recreational boaters are urged to use this channel to reduce congestion
on Channel 16.
Intership Safety
Channel 6
Ship-to-ship safety messages and for search and rescue messages to
Coast Guard ships and aircraft.
Coast Guard Liaison
Channel 22A
To talk to the Coast Guard, Canadian Coast Guard (non-emergency) after making
contact on Channel 16.
Non-Commercial
Channels 68*, 69, 71, 72, 78A, 79A*, 80A*
Working channels for small vessels. Messages must be about needs of the
vessel, such as fishing reports, berthing and rendezvous. Use Channel 72 only
for ship-to-ship messages.
Commercial
Channels 1A, 7A, 8, 9, 10, 11, 18A, 19A, 63A, 67, 72, 79A, 80A, 88A*
Working channels for working ships only. Messages must be about business or
needs of the ship. Use Channels 8, 67, 72 and 88A only for ship-to-ship messages.
18 English
MRHH325VP-Body-Eng2:400_Body
VHF Marine Radio Protocols
10/26/06
12:00 PM
Page 19
VHF Marine
Channel Assignments
Public Correspondence (Marine Operator)
Channels 24, 25, 26, 27, 28, 60, 61, 84, 84A, 85, 85A, 86, 86A, 87, 87A, 88*
For calls to marine operators at public coast stations. You can make and receive
telephone calls through these stations.
Port Operations
Channels 1A*, 5A*, 12*, 14*, 18, 19, 20A, 21, 22, 63A*, 65A, 66A, 73, 74, 75, 76,
77*, 79, 80, 81, 82
Used for directing the movement of ships in or near ports, locks or waterways.
Messages must be about operational handling, movement and safety of ships.
Navigational
Channels 13, 67
Channels are available to all vessels. Messages must be about navigation, including
passing or meeting other vessels. These are also the main working channels for
most locks and drawbridges. You must keep your messages short and power output
at no more than 1 watt.
Maritime Control
Channel 17
For talking to vessels and coast stations operated by state or local governments.
Messages must be about regulation and control, boating activities, or assistance.
Digital Selective Calling
Channel 70
This channel is set aside for distress, safety and general calling using only digital
selective calling techniques. Voice communication is prohibited; your radio cannot
transmit voice messages on this channel.
Weather
Channels Wx 1 Thru 9
Receive-only channels for NOAA and Canadian weather broadcasts. You cannot
transmit on these channels.
NOTE
* These channels are restricted to the listed uses in certain parts of
the country or for certain types of users only. Consult FCC rules
or a knowledgeable radio operator before using them.
Nothing Comes Close to a Cobra®
19
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
Channel
Number
•
•
•
•
•
•
04
•
04A
•
05
06
•
•
03
05A
Page 20
VHF Marine
Channel Assignments
•
02
03A
12:00 PM
Channel Map
Frequency
USA
Int’l Canada Transmit Receive
01
01A
10/26/06
•
•
07
•
•
•
•
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
12
•
•
•
•
•
•
156.600
156.600
13
•
•
•
156.650
156.650
14
•
•
•
•
156.700
156.700
Rx Only
156.750
156.750
156.750
156.800
156.800
156.850
156.850
07A
08
09
10
11
15
15
16
17
20 English
•
•
•
•
•
•
•
•
Power
Limits
1 watt USA and CAN
1 watt CAN and INT
1 watt USA and CAN
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
Channel
01
01A
10/26/06
12:00 PM
VHF Marine
Channel Assignments
Use
Public Correspondence (Marine Operator)
Port Operations and Commercial, VTS in selected areas
02
Public Correspondence (Marine Operator)
03
Public Correspondence (Marine Operator)
03A
04
04A
05
05A
Page 21
Government Only
Public Correspondence (Marine Operator), Port Operations, Ship Movement
West Coast (Coast Guard Only); East Coast (Commercial Fishing)
Public Correspondence (Marine Operator), Port Operations, Ship Movement
Port Operations, VTS in selected areas
06
Intership Safety
07
Public Correspondence (Marine Operator), Port Operations, Ship Movement
07A
Commercial
08
Commercial (Intership Only)
09
Boater Calling Channel, Non-Commercial (Recreational)
10
Commercial
11
Commercial, VTS in selected areas
12
Port Operations, VTS in selected areas
13
Intership Navigation Safety (Bridge-to-Bridge). In U.S. waters,
large vessels maintain a listening watch on this channel.
14
Port Operations, VTS in selected areas
15
Environmental (Receive Only). Used by class C EPIRB’s.
15
Canada (EPIRB Buoys Only); International (On-Board Communication)
16
International Distress, Safety and Calling
17
State Controlled (U.S.A. Only)
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21
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
Channel
Number
20
20A
•
•
•
•
•
24
25
26
27
28
•
•
•
•
•
•
•
•
60
61
61A
62
62A
22 English
161.500
156.900
156.900
156.950
161.550
156.950
156.950
157.000
161.600
157.000
157.000
157.050
161.650
157.050
157.050
157.100
161.700
•
157.100
157.100
•
157.150
161.750
157.150
157.150
157.200
161.800
157.250
161.850
157.300
161.900
157.350
161.950
157.400
162.000
156.025
160.625
156.075
160.675
156.075
156.075
156.125
160.725
156.125
156.125
•
•
•
•
•
23
23A
•
•
22
22A
156.900
•
•
21
21A
Page 22
VHF Marine
Channel Assignments
•
19
19A
12:00 PM
Channel Map
Frequency
USA
Int’l Canada Transmit Receive
18
18A
10/26/06
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Power
Limits
1 watt CAN
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
Channel
18
18A
19
19A
20
20A
21
21A
22
22A
23
23A
10/26/06
12:00 PM
VHF Marine
Channel Assignments
Use
Port Operations, Ship Movement
Commercial
Port Operations, Ship Movement
Commercial
Canada (Coast Guard Only); International (Port Operations, Ship Movement)
Port Operations
Port Operations, Ship Movement
U.S. (Government Only); Canada (Coast Guard Only)
Port Operations, Ship Movement
U.S. and Canadian Coast Guard Liaison and Maritime Safety Information
Broadcasts that are announced on Channel 16
Public Correspondence (Marine Operator)
Government Only
24
Public Correspondence (Marine Operator)
25
Public Correspondence (Marine Operator)
26
Public Correspondence (Marine Operator)
27
Public Correspondence (Marine Operator)
28
Public Correspondence (Marine Operator)
60
Public Correspondence (Marine Operator)
61
61A
62
62A
Page 23
Public Correspondence (Marine Operator), Port Operation, Ship Movement
U.S. (Government Only); Canada (Coast Guard Only);
West Coast (Coast Guard Only); East Coast (Commercial Fishing)
Public Correspondence (Marine Operator), Port Operations, Ship Movement
West Coast (Coast Guard Only); East Coast (Commercial Fishing)
Nothing Comes Close to a Cobra®
23
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
Channel
Number
•
•
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
1 watt CAN
1 watt USA
•
•
•
•
•
•
66
Power
Limits
156.175
•
65
65A
Page 24
VHF Marine
Channel Assignments
•
64
64A
12:01 PM
Channel Map
Frequency
USA
Int’l Canada Transmit Receive
63
63A
10/26/06
66A
•
67
•
•
•
156.375
156.375
68
•
•
•
156.425
156.425
69
•
•
•
156.475
156.475
70
•
•
•
RX only
156.525
71
•
•
•
156.575
156.575
72
•
•
•
156.625
156.625
73
•
•
•
156.675
156.675
74
•
•
•
156.725
156.725
156.775
156.775
1 watt Only Int.
156.825
156.825
1 watt Only Int.
156.875
156.875
1 watt USA and CAN
•
•
75
76
77
24 English
•
•
•
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
Channel
63
63A
64
64A
65
65A
66
66A
67
10/26/06
12:01 PM
Page 25
VHF Marine
Channel Assignments
Use
Public Correspondence (Marine Operator), Port Operations, Ship Movement
Port Operations and Commercial, VTS in selected areas
Public Correspondence (Marine Operator), Port Operations, Ship Movement
U.S. (Government Only); Canada (Commercial Fishing)
Public Correspondence (Marine Operator), Port Operations, Ship Movement
Port Operations
Public Correspondence (Marine Operator), Port Operations, Ship Movement
Port Operations
U.S. (Commercial). Used for bridge-to-bridge communications in lower
Mississippi River (Intership Only); Canada (Commercial Fishing), S&R
68
Non-Commercial (Recreational)
69
U.S. (Non-Commercial, Recreational); Canada (Commercial Fishing Only);
International (Intership, Port Operations, Ship Movement)
70
Digital Selective Calling (Voice communications not allowed)
71
U.S. and Canada (Non-Commercial, Recreational);
International (Port Operations, Ship Movement)
72
Non-Commercial (Intership Only)
73
U.S. (Port Operations); Canada (Commercial Fishing Only);
International (Intership, Port Operations, Ship Movement)
74
U.S. (Port Operations); Canada (Commercial Fishing Only);
International (Intership, Port Operations, Ship Movement)
75
Port Operations (Intership Only)
76
Port Operations (Intership Only)
77
Port Operations (Intership only). Restricted to communications
with pilots for movement and docking of ships.
Nothing Comes Close to a Cobra®
25
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
Channel
Number
78
78A
79
79A
80
80A
81
81A
82
82A
83
83A
84
84A
85
85A
86
86A
87
87
87A
88
88
88A
10/26/06
12:01 PM
Page 26
VHF Marine
Channel Assignments
Channel Map
Frequency
USA
Int’l Canada Transmit Receive
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
156.925
156.925
156.975
156.975
157.025
157.025
157.075
157.075
157.125
157.125
157.175
157.175
157.225
157.225
157.275
157.275
157.325
157.325
157.375
157.375
157.375
161.525
156.925
161.575
156.975
161.625
157.025
161.675
157.075
161.725
157.125
161.775
157.175
161.825
157.225
161.875
157.275
161.925
157.325
161.975
157.375
157.375
157.425
162.025
157.425
157.425
157.425
157.425
Power
Limits
NOTE
Many of the plain-numbered channels, such as 01, 02 and 03, transmit and
receive on different frequencies. This is termed duplex operation. The rest of the
plain-numbered channels and all of the A channels, such as 01A, 03A and
04A, transmit and receive on a single frequency, which is termed simplex
operation. Your radio automatically adjusts to these conditions. When in simplex
operation, the A icon will appear on the LCD (see illustration on page A3).
26 English
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
Channel
78
78A
79
79A
80
80A
81
81A
82
82A
83
83A
84
84A
85
85A
86
86A
87
87
87A
88
88
88A
10/26/06
12:01 PM
Page 27
VHF Marine
Channel Assignments
Use
Public Correspondence (Marine Operator)
Non-Commercial (Recreational)
Port Operations, Ship Movement
Commercial (Also Non-Commercial only in Great Lakes)
Port Operations, Ship Movement
Commercial (Also Non-Commercial only in Great Lakes)
Port Operations, Ship Movement
U.S. (Government Only; Environmental Protection Operations)
Public Correspondence (Marine Operator), Port Operation, Ship Movement
U.S. (Government Only); Canada (Coast Guard Only)
Canada (Coast Guard Only)
U.S. (Government Only); Canada (Coast Guard Only)
Public Correspondence (Marine Operator)
Public Correspondence (Marine Operator)
Public Correspondence (Marine Operator)
Public Correspondence (Marine Operator)
Public Correspondence (Marine Operator)
Public Correspondence (Marine Operator)
Public Correspondence (Marine Operator)
Public Correspondence (Marine Operator)
Public Correspondence (Marine Operator)
Public Correspondence (Ship to Coast). In U.S. only within
75 miles of Canadian Border.
Commercial Intership only
Commercial Intership only
NOTE
All channels are preprogrammed at the factory according to international
regulations and those of the FCC (U.S.A.) and Industry Canada (Canada).
They cannot be altered by the user nor can modes of operation be changed
between simplex and duplex.
Nothing Comes Close to a Cobra®
27
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:01 PM
Page 28
NOAA Weather Channels
and Alert
NOAA Weather Channels and Alert
•
Monitoring the weather will probably be a frequent use of your radio. NOAA provides
continuous, around-the-clock broadcasts of the latest weather information. Taped
weather messages run every four (4) to six (6) minutes and are revised every two
(2) or three (3) hours, or as needed. The Coast Guard also announces weather and
other safety warnings on Channel 16. Smart boaters keep an eye on safety and an
ear to the radio — and never let the weather catch them unaware.
NOAA Emergency Weather Alert
In the event of a major storm or other weather condition requiring vessels at sea
or on other bodies of water to be notified, NOAA broadcasts a 1050 Hz tone that
receivers such as your CobraMarine VHF radio can detect and warn you of a weather
alert condition. When the Weather Alert mode on your radio is On, this signal will
produce a loud tone from the speaker in the radio and will automatically switch to
the alerting weather channel so the alert broadcast can be heard.
28 English
MRHH325VP-Body-Eng2:400_Body
VHF
Marine Radio Protocols
Introduction
10/26/06
12:01 PM
Page 29
NOAA Weather Channels
and Alert
NOAA Test Alert System
To test this system, NOAA broadcasts the 1050 Hz signal every Wednesday sometime
between 11 a.m. and 1 p.m. in each local time zone. Any receiver that can detect the
weather alert tone may use this service to verify that this system is functioning properly.
Weather Frequency/Channel
Channel
RX Frequency MHz Weather Channel
162.550
NOAA
162.400
NOAA
162.475
NOAA
162.425
NOAA
162.450
NOAA
162.500
NOAA
162.525
NOAA
161.650
Canadian
161.775
Canadian
10
163.275
NOAA
Nothing Comes Close to a Cobra®
29
MRHH325VP-Body-Eng2:400_Body
VHF Marine Radio Protocols
Installation
10/26/06
12:01 PM
Page 30
Included in this Package
Included in this Package
•
You should find all of the following items in the package with
your CobraMarine VHF radio:
Radio
Wrist Strap
Drop-In Battery Charger
Flexible Antenna
Battery Charger Power Cord
NiMH Battery Pack
For connection to 12-volt and 120-volt
power sources.
Operating Instruction Manual
30 English
Spring-Loaded Belt Clip
MRHH325VP-Body-Eng2:400_Body
Installation
Introduction
10/26/06
12:01 PM
Page 31
Antenna, Wrist Strap
and Belt Clip
Antenna, Wrist Strap and Belt Clip
Install Antenna
•
Antenna Installation
The flexible antenna is shipped separately in the package
and must be attached before you use the radio.
1. Align the base of the antenna with the socket in the
top of the radio.
2. Screw it all the way into the socket. Be sure that
the seal seats properly.
Wrist Strap
NOTICE
Operating the radio without the antenna in place
may damage the unit. The radio is not waterproof
until the antenna and battery pack are in place
with their seals properly seated.
Wrist Strap
Belt Clip Secured to Belt
The radio comes with the wrist strap already attached.
It can be easily removed if you choose not to use it.
Belt Clip
Insert Knob onto Belt Clip
Use the spring-loaded belt clip to carry the radio on your
person.
1. Press open the belt clip, slide it over the belt and
release the clip.
2. Insert the round guide on the back of the radio into the
guide channel on the back of the belt clip. The radio must
be upside-down, as shown, to remove it from the belt
clip.
3. Once the knob is inserted all the way into the belt clip
channel, the radio swings free but remains secure.
Secure Radio
Nothing Comes Close to a Cobra®
31
MRHH325VP-Body-Eng2:400_Body
Installation
Introduction
10/26/06
12:01 PM
Page 32
Batteries and Charger
Batteries and Charger
NiMH Battery Pack
•
The radio is shipped with a sealed NiMH (Nickel-Metal
Hydride) (P/N CM 110-009) battery pack that is
rechargeable.
WARNING
The charger provided for this radio is only to be used
to charge the battery pack provided. Do Not charge
any other type of batteries in the charger as fire,
explosion or battery damage will occur. Avoiding
extreme room temperatures will also help prolong the
life of the battery pack for the radio.
When your rechargeable batteries begin to discharge too
quickly, it is time to install a new battery pack. Your radio
will also operate with six (6) high-quality AA alkaline
batteries, using the optional alkaline battery tray.
Install Battery Pack
Installing the Battery Pack
1. Position the battery pack to line up the two (2) external
alignment tabs to the alignment slots in the radio.
2. Engage the battery pack into the radio until battery pack
is fully seated against the radio housing.
3. Pivot the locking tab up until it snaps into place on the
back of the battery pack.
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Introduction
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Batteries and Charger
Power Sources
Initial Charge
Initial Battery Charge
The Cobra-provided NiMH battery pack may be charged at
home, in a car or in a boat using the appropriate 12V or
120V power cord with the charger.
1. Insert one (1) of the power cords into the back of the
drop-in charger.
2. Insert the other end of the power cord into the
appropriate 12V or 120V power source.
3. Remove the spacer from the charger and insert the entire
radio/battery into the charger. The metal charge contacts
on the battery will contact the mating prongs in the
charger to transfer the charging current.
4. Observe that the red light on the front of the charger
glows to indicate that the battery pack is properly seated
and the charger is operating.
5. Allow the batteries to charge for 12 to 14 hours before
use.
WARNING
Only the rechargeable NiMH battery pack can
be recharged. You MUST use one of the charging
devices provided with this radio. Do not substitute
any other type of charging adapter or charger base
for this radio. Battery damage, fire or explosion may
result. It is equally important to prevent the NiMH
battery pack from freezing to obtain best performance
from the battery pack.
NOTE
If the drop-in charger is used on a boat, Cobra
recommends you attach it to a horizontal shelf or
vertical bulkhead (using the screw holes provided) to
prevent possible damage due to the boat rolling or
pitching. The charging base has been designed to hold
the battery pack in place during rough sea conditions.
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MRHH325VP-Body-Eng2:400_Body
Installation
Introduction
Locking Tab
10/26/06
12:01 PM
Page 34
Batteries and Charger
To Remove Battery Pack from Radio
1. Pivot the locking tab off of the back of the battery pack to
unlock.
2. Lift the bottom of the battery pack slightly to remove it
from the radio housing.
3. Pull battery pack out of the radio housing.
Battery Pack Charging Only
NOTE
The NiMH battery pack can also be charged in the
battery charger without being installed in the radio.
Insert the spacer into the battery charger to support
the battery pack during this charging process. Follow
the same procedures in “Initial Charge” to charge the
battery pack.
NOTICE
NiMH batteries are toxic. Please dispose of properly.
Some marine suppliers accept old battery packs for
recycling and some municipal waste disposal
agencies have special provisions for battery disposal.
Alkaline Battery Tray
Alkaline Batteries
An optional alkaline battery tray (P/N CM 110-011) can be
purchased for this radio. The alkaline battery tray acts as a
backup or “Emergency” power source should the battery
pack run low on power and needs to be recharged. The
radio will transmit at full power when using six (6) new AA
alkaline batteries.
WARNING
Never attempt to recharge alkaline batteries. They are
not made to be recharged, and should be disposed of
in a proper manner.
34 English
MRHH325VP-Body-Eng2:400_Body
Installation
Introduction
Fully Charged
10/26/06
12:01 PM
Page 35
Batteries and Charger
Maintaining the Battery Charge
As you use your radio, the battery power icon will show the
battery power remaining. When the icon begins to flash, it is
time to recharge or change the batteries.
Partially Charged
Fully Discharged
NOTICE
Use only the drop-in charger provided by Cobra. Do
not use the charger with alkaline batteries; only the
NiMH battery pack is rechargeable. Spent alkaline
batteries must be discarded and replaced.
It is a good idea to keep a set of fresh, high-quality AA
alkaline batteries with your radio. Should the rechargeable
battery pack become discharged and no electrical power
source is available, you can insert the optional alkaline
battery tray with fresh alkaline batteries and continue to use
your radio.
NOTE
Some radios with NiMH batteries have AA or AAA
battery packs which only allow low-power transmit.
The optional AA battery tray for the MR HH325 and a
fresh set of alkaline batteries will allow for full-power
emergency transmissions.
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Operating
Your Radio
Introduction
10/26/06
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Page 36
Getting Started
Getting Started
MR HH325 Radio
•
Refer to the foldout at the front of this manual to identify the
various controls and indicators on your radio. Throughout
this manual you will be instructed to “Press” or to “Press
and Hold” various buttons (except “Push to Talk”) on the
radio. “Press” means a momentary press of approximately
one (1) second. “Press and Hold” means to hold the button
down for approximately three (3) seconds.
Whenever you press any button except the Talk button on
your radio, a brief tone (beep) will sound to confirm the
button press. With all button presses, the appropriate icon
will appear on the LCD and the backlight will turn On. The
backlight will stay on for 10 seconds after the button is
released.
At times, you will hear two (2) other sounds. Two (2) beeps
will sound to confirm your setting changes and three (3)
beeps will sound to notify you of an error.
Common Radio Functions
The following procedures define common operating
functions of the radio when in either Marine Standby or
Weather (WX) Standby modes.
On/Off/Volume Control
(Clockwise)
On/Off/Volume Control
(Counterclockwise)
36 English
Power/Volume/Squelch Controls
Power On/Off Control
The On/Off/Volume control is located at the upper right
side of the radio. Turning the On/Off/Volume control
past the detent position will turn the radio On or Off.
Volume Control
Volume is controlled by turning the On/Off/Volume
control.
 To increase the volume, turn the On/Off/Volume
control clockwise.
 To decrease the volume, turn the On/Off/Volume
control counterclockwise.
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Operating
Your Radio
Introduction
Squelch Control
10/26/06
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Page 37
Getting Started
Squelch Control
Squelch is controlled by turning the lower rotary
concentric knob located directly below the
On/Off/Volume switch.
With the power On, turn the knob counterclockwise
until you hear a hissing sound, then turn the knob
clockwise until the hissing stops. This will establish a
“Baseline” squelch. By turning the knob further in a
clockwise direction, you will filter weak and mediumstrength signals. By turning the knob in a
counterclockwise direction (further from your baseline
setting), you will receive weaker signals. Squelch
Control filters weak signals and radio frequency (RF)
noise so that you will clearly hear the signals you want.
NOTE
If the Squelch is set so that you can hear a
continuous hissing sound, the Memory Scan and
Tri-Watch functions will be blocked.
Speaker/Mic Port
Radio Speaker and Microphone
The internal Radio Speaker and Microphone are located on
the bottom front face of the radio below the lower control
buttons.
An optional Speaker/Microphone port is located at the top
of the radio between the antenna and the Power/Volume/
Squelch control. Unthread the Speaker/Microphone port
cover to access and install an optional speaker or
microphone into this port.
Talk Button
Press and hold the Talk button to transmit messages.
Release the Talk button to stop transmitting.
Talk Button
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Operating
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Introduction
Backlight/Key Lock Button
Key Locked Buttons
Key Lock Icon
10/26/06
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Page 38
Getting Started
Backlight/Key Lock Button
The LCD will be illuminated by the backlight as long as any
button is pressed and will remain On for 10 seconds after
the button is released.
To Display the Backlight Momentarily:
Press the Backlight/Key Lock button. The backlight will
remain On for 10 seconds. If the backlight is already
On, another press of the Backlight/Key Lock button
will turn it Off.
Key Lock
To prevent accidental changes to your settings, you
can lock all of the following buttons:
 Channel Up Button
 Channel Down Button
 SCAN Button
 MEM/ESC Button
 WX/H-M-L Button
 16/9 Button
 TRI-WATCH Button
 Call/Enter/Setup Button
To Lock or Unlock the Buttons:
Press and hold the Backlight/Key Lock button for two
(2) seconds. The Key Lock icon will appear or
disappear in the LCD. When Key Lock is On, pressing
any of the listed buttons on the front of the radio will
result in a three (3) beep error message.
Both the Backlight/Key Lock button and the Talk
button are active — you can Receive (Rx) or Transmit
(Tx) a message with Key Lock On, but you cannot
change the channel.
38 English
MRHH325VP-Body-Eng2:400_Body
Operating
Your Radio
Introduction
Channel Up/Down Button
Currently On Channel 88
SCAN Button
10/26/06
12:01 PM
Page 39
Getting Started
Channel Up/Down Button
Your radio will Receive (Rx) and Transmit (Tx) VHF signals
on the channel indicated on the LCD display. You can
change the channel at any time using the Channel Up/Down
button.
To Change Channels:
Press the Channel Up/Down button.
If you are on Channel 88, pressing the Channel Up
button will advance to Channel 01. If you are on
Channel 01, pressing the Channel Down button will
advance to Channel 88.
You can press and hold the Channel Up/Down button
for fast advance. The beep sound will occur only at the
first press of the button and not during fast advance.
If the new channel selected is restricted to low power,
the radio will automatically switch to Low Power mode
and the Low Power icon will appear on the LCD.
If the radio is in the Key Lock mode, the channel will
not change and the three (3) beep error signal will
sound.
SCAN Button
Press and release the SCAN button to scan all channels. The
SCAN icon will display on the LCD display. Scanning begins
at lower channels, and scans to higher channels. Press
Channel Up/Down button to change the scan direction.
When a signal is received in SCAN mode, the radio will
pause 10 seconds before resuming SCAN operation. The
scan will stop when the Talk button is pressed.
In Memory mode, press and release the SCAN button to
scan all memory channels. Because the unit is already in the
Memory Channel mode, only the channels in the memory
bank will be displayed.
NOTE
Memory channels need to be saved to effectively enter
the Memory Channel mode and scan all memory
channels.
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Operating
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Introduction
H-M-L Power Button
10/26/06
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Page 40
Getting Started
High/Medium/Low (H-M-L) Power Button
Your radio can transmit selectively at 1, 3 or 5 watts of
power. Cobra suggests you maintain the low power setting
for short-range communications. You will conserve battery
life and avoid overpowering nearby stations with a low
power setting signal. Use the high power setting for longrange communications or when you do not receive a
response to a signal sent at 1 watt.
To Toggle Between H-M-L Power Modes:
Press the H-M-L Power button. The LCD will show
which mode is in effect. Some channels are restricted
for a maximum use of 1 watt. Your radio will
automatically set the power to Low Power mode when
you select those channels.
NOTE
Some channels, frequency bands and countries of use
might not be able to operate in High Power mode.
Call/Enter/Setup Button
40 English
Call /Enter/Setup Button
The Call/Enter/Setup button has multiple functions. It is
generally used in the following ways:
 Press and release to transmit your unique Call Tone
signal to another radio.
 Press and hold to enter any Setup menu.
 Functions as an ENTER button when making a selection
in any Setup menu.
MRHH325VP-Body-Eng2:400_Body
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Introduction
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Page 41
Setup Mode Programming
Setup Mode Programming
•
The following series of procedures is designed to allow you to set the programmable
features of your radio. Correctly following these steps results in a minimal amount
of radio setup programming time.
NOTE
When in the Setup mode, if you stop programming for longer than 15 seconds,
your entry will be saved and the radio will go back to the Marine Standby
mode. When you return to Setup mode and continue programming you will see
the last “value” displayed. While in the Setup mode, you will not receive any
signal reception.
Marine (VHF) Mode Programming
Programming these features will allow you to customize certain features of this
radio to enhance your “On-Water” audio needs.
Start from Marine Standby mode to begin Marine (VHF) Setup programming. Press
and hold the Call/Enter/Setup button for two (2) seconds to enter the programming
mode.
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Operating
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Introduction
Set Channel Map
Active Channel Map Icon
Channel Up/Down Button
10/26/06
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Page 42
Setup Mode Programming
USA/International/Canada Channel Maps
Three (3) sets of VHF Channel Maps have been established
for marine use in the USA, Canada, and the rest of the world
(International). Most of the channels are the same for all
three (3) maps, but there are definite differences (see table
on pages 20 through 27). Your radio has all three (3) maps
built into it and will operate correctly in whichever area you
choose.
To Set Channel Map Operating Area:
1. The Channel Map mode is the first mode that
begins the Marine (VHF) Setup programming.
2. U, I and C will display, with the current setting (the
U icon is the default) flashing.
3. Press Channel Up/Down button to select the U, I or
C icon.
4. Press Call/Enter/Setup button to save this entry and
move to the next setup programming mode.
NOTE
One or two of the channel maps might have been
disabled for sales of this radio in some countries.
42 English
MRHH325VP-Body-Eng2:400_Body
Operating
Your Radio
Introduction
VOX Mode
VOX Level
10/26/06
12:01 PM
Page 43
Setup Mode Programming
Voice Activated Transmit (VOX) Mode
In VOX mode, your radio can be used “hands-free,”
automatically transmitting when you speak. You can also set
the VOX sensitivity level to fit the volume of your voice and
avoid transmissions triggered by background noise.
To turn VOX Mode On or Off:
1. Display will show VOX icon and ON or OFF flashing.
2. Press Channel Up/Down button to select ON or
OFF.
3. Press Call/Enter/Setup button to save this entry and
move to the next setup programming mode.
To set VOX Sensitivity Level:
1. The display will show LE (level). VOX icon and 05
will be flashing.
NOTE
VOX sensitivity level is only visible when VOX is On.
2. Press Channel Up/Down button to change volume
level of your choice. Remember, this selection is
your voice sensitivity during hands-free operation.
05 - indicates a Low (quiet) voice setting.
03 - indicates a Medium voice setting.
01 - indicates a High (loud) voice setting.
3. Press Call/Enter/Setup button to save this entry and
move to the next setup programming mode.
NOTE
VOX will be turned Off automatically when the radio
is turned Off. This will avoid accidental transmissions.
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MRHH325VP-Body-Eng2:400_Body
Operating
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Introduction
VibrAlert® Tone Alert
Call Tone Mode
10/26/06
12:01 PM
Page 44
Setup Mode Programming
VibrAlert® Mode
In VibrAlert® mode, your radio can alert you to incoming
signals by sounding an audible call tone, a silent vibration or
both.
To set VibrAlert®:
1. The display will show either the Vibrate icon (shake
bars), Call Tone icon (bell shape) or a combination
VibrAlert® icon.
2. The present setting of either, 01, 02 or 03 will be
flashing.
3. Press Channel Up/Down button to select one of the
following:
01 = VibrAlert® On (both shake bars and bell
shape).
02 = Vibrate On (shake bars only).
03 = Call Tone Only On (bell shape only).
4. Press Call/Enter/Setup button to save this entry and
move to the next setup programming mode.
Call Tone Mode
In Call Tone mode, your radio can alert you to incoming
signals by sounding an audible call tone, a silent vibration or
both. This setting will also allow you to transmit a unique
Call Tone alert to identify your radio when you transmit
messages. You can select from one of 10 different Call Tone
signals.
To Set Call Tone:
1. From the previous press of the Call/Enter/Setup
button, the LCD will display the letter “C” and the
current Call Tone number (01 through 10).
2. Press the Channel Up/Down button to select a
different Call Tone. An example of each call tone will
sound for 1.5 seconds.
3. Press Call/Enter/Setup button to save this entry and
move to the next setup programming mode.
NOTE
Call Tones are not usually used for Marine VHF
communications. We allow you to turn it On for your
unique communication needs.
44 English
MRHH325VP-Body-Eng2:400_Body
Operating
Your Radio
Introduction
Roger Beep Mode
Key Tone Mode
10/26/06
12:01 PM
Page 45
Standby/Receive
and Transmit
Roger Beep Mode
In Roger Beep mode, your listener will hear an audible tone
when you release the Talk button. This alerts your listener
that you are finished talking and it is OK for them to speak.
To Set Roger Beep On or Off:
1. Display will show ROG icon and ON or OFF flashing.
2. Press Channel Up/Down button to select ON or
OFF. ROG will be displayed when On.
3. Press Call/Enter/Setup button to save this entry and
move to the next setup programming mode.
Key Tone Mode
In Key Tone mode, an audible tone will sound each time a
button is pressed or you change a setting.
To Set Key Tone On or Off:
1. Display will show Key Tone icon and ON or OFF
flashing.
2. Press Channel Up/Down button to select ON or
OFF.
3. Press Call/Enter/Setup button to save entry.
You have now ended Marine (VHF) Setup
programming mode and will enter Marine Standby
mode.
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Introduction
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Standby/Receive
and Transmit
Weather (WX) Alert Mode Programming
WX Alert On/Off
WX Auto Search (SCAN)
Programming these features will allow your radio to listen to
all NOAA Hazard Alert radio channels.
Start from WX Alert Standby mode to begin WX Alert Setup
programming. Press and hold the Call/Enter/Setup button
for two (2) seconds to enter the programming mode.
To Set WX Alert On or Off:
1. WX Alert mode is the first mode that begins WX
Alert Setup programming.
2. Display will show WX Alert icon and ON or OFF
flashing.
3. Press Channel Up/Down button to select ON or
OFF.
4. Press Call/Enter/Setup button to save this entry and
move to the next setup programming mode.
To Set WX Auto Search (SCAN) On or Off:
1. Display will show WX Alert icon and SCAN, ON or
OFF is flashing.
2. Press Channel Up/Down button to select SCAN, ON
or OFF.
3. Press the Call/Enter/Setup button to save entry.
You have now ended the WX Alert Setup programming
mode and will enter the WX Alert Standby mode.
NOTE
When WX Auto Search (SCAN) is set to On, weather
channel scanning will start automatically and scan all
available weather channels until the strongest channel
is found. This will happen under the following
conditions:
46 English
WX Alert is engaged.
Radio is in VHF Standby.
WX received signal level falls below a preset
level.
Radio is in Power Saver mode.
MRHH325VP-Body-Eng2:400_Body
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Introduction
10/26/06
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Page 47
Standby/Receive
and Transmit
Standby/Receive and Transmit
•
Marine Standby and Receive (Rx) Mode
Marine Standby mode is the default mode for the radio whenever it is turned on.
From this mode, you can change current settings by becoming familiar with the
different key functions in Marine Standby mode. While in Marine Standby mode,
the user will be able to transmit by pressing the Push to Talk (Talk) button. Signals
in Receive (Rx) mode will be received on the selected channel(s) and alerts
broadcast by the Coast Guard and will activate the corresponding NOAA weather
alert channels in your radio.
NOTE
Coast Guard alerts are broadcast on Channel 16 and you need to have the WX
Alert turned On to receive NOAA weather alerts. While in Marine Standby
mode, you will receive any messages sent on the channel to which you are
tuned.
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MRHH325VP-Body-Eng2:400_Body
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Introduction
10/26/06
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Page 48
Standby/Receive
and Transmit
Transmit (Tx) Mode
Check Channel Number
Low Power Mode
Talk Button
Transmit (Tx) Icon
Receive (Rx) Icon
48 English
Transmit (Tx) mode gives you the ability to interact with
safety services, other vessels and shore stations. When you
use this capability, be sure to follow the procedures and to
observe the courtesies that govern its use so everyone
benefits. (See pages 20 through 27) to help you select the
proper channels.
To Transmit a Message:
1. Check to see that your radio is set to a proper
channel for the type of message you plan to send.
2. Toggle to the Low Power setting.
3. With the microphone about 2 in. [51 mm] from your
mouth, press and hold the Talk button and speak
into the microphone. The Transmit icon will appear
on the LCD.
4. Release the Talk button when you are finished
speaking. Your radio can only operate in either
Transmit (Tx) or Receive (Rx) mode at any given
time. You will not hear the response to your
message unless the Talk button is released. If the
Battery Power icon begins blinking on the LCD
when the Talk button is pressed, the radio will NOT
transmit.
NOTE
If the Talk button is held down for five (5) minutes,
the radio will automatically sound a series of beeps
and cease transmitting to prevent unwanted signal
generation and battery drain. As soon as the Talk
button is released, it can be pressed again to resume
transmission.
MRHH325VP-Body-Eng2:400_Body
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Introduction
WX/H-M-L Button
10/26/06
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Page 49
Standby/Receive
and Transmit
Weather (WX) Standby Mode
To enter the WX Standby mode, press and hold the
WX/H-M-L button. All common operating functions of the
radio will work the same in WX Standby mode as they do in
the normal Marine Standby mode. The radio will be
monitoring for all alerts in the background when in the WX
Standby mode.
WX Alert Standby Mode
NOAA broadcasts weather information as described in the
NOAA weather channels section on page 29 of this manual.
When NOAA broadcasts a weather alert signal and your
radio is in WX Alert Standby mode, the following items will
be displayed on the LCD display:
 The WX icon (cloud/sun) icon will be displayed.
 The last used weather channel will be displayed.
 The bar graph will display received signal strength
level.
 The WX Alert icon (safety triangle) will be displayed.
NOTE
Only one (1) or two (2) of the weather channels will
be operating in any given location (only in Receive
(Rx) mode). You will need to select the channel with
the strongest signal in your location.
NOTE
When in the WX Alert mode, and NOAA sends the
1050Hz alert tone, the radio will sound a series of
loud beeps regardless of the volume control setting.
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MRHH325VP-Body-Eng2:400_Body
Operating
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Introduction
WX Auto Search (SCAN)
50 English
10/26/06
12:02 PM
Page 50
Standby/Receive
and Transmit
WX Auto Search (SCAN) Mode Function:
The purpose of the WX Auto Search (SCAN) function
is to enable the receiver to automatically scan for an
active WX channel under the following conditions:
1. WX Auto Search (SCAN) function is On.
2. WX Alert is On.
3. The radio is tuned to a Marine VHF channel and has
entered Power Save mode (meaning there is no
signal activity or user input for 10 seconds).
4. The radio software has detected that the current WX
channel signal level has dropped below a preset
minimum level or is gone completely.
Once these conditions have been met, the software will
then scan the WX channels looking for an active WX
channel. When an active WX channel is found, it will
stop the scan and use the new WX channel to look for
the standard 1050Hz alert tone.
MRHH325VP-Body-Eng2:400_Body
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Introduction
10/26/06
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Page 51
Advanced Operation
Advanced Operation
•
Channel 16/9 Mode
Channel 16/9 Button
Channel 16/9 mode gives you quick access to calling on
Channel 16 and Channel 9 from any operational mode.
To Switch to Channel 16 or Channel 9:
1. Press the Channel 16/9 button to change to
Channel 16.
2. Press the Channel 16/9 button again to change to
Channel 9.
3. Press the Channel 16/9 button a third time and
return to the last used Standby channel.
Channel 16 or Channel 9
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Advanced Operation
Tri-Watch Mode
Tri-Watch mode gives you one (1) button access to scan a
total of three (3) channels of most importance to you.
Channel 16 is preprogrammed and will always be one (1) of
the scanned locations. Two (2) other channels of your
choice can be stored in the radio. These channels can be
edited and/or recalled during future engagements of
Tri-Watch mode.
TRI-WATCH Button
TRI and MEM Icons
Channel Up/Down Button
52 English
NOTE
The radio must be squelched for Tri-Watch mode to
function. See page 37 for Squelch procedure.
Tri-Watch Setup
To Program or Edit the Tri-Watch Channels:
1. Press and hold the TRI-WATCH button for two (2)
seconds to activate Tri-Watch Setup mode. The TRI
and MEM icons on the display will turn On.
NOTE
The main channel number will flash to indicate channel
position. If there is no input activity for 15 seconds, the
radio will sound two (2) beeps and return to Marine
Standby mode.
2. Press Channel Up/Down button to select the desired
Tri-Watch channel.
3. Press and release TRI-WATCH button or
Call/Enter/Setup button to confirm entry.
4. Repeat steps 2 and 3 to program the remaining
additional Tri-Watch memory channel.
5. After programming both Tri-Watch memory
channels the radio will immediately engage
Tri-Watch mode. (See page 53 for further details.)
MRHH325VP-Body-Eng2:400_Body
Operating Your Radio
TRI-WATCH Button
10/26/06
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Page 53
Advanced Operation
Using Tri-Watch
Tri-Watch Scan Mode:
1. From Marine Standby mode, press the TRI-WATCH
button. The TRI icon will appear on the LCD display
and the radio will scan through the three (3) TriWatch memory channels.
2. A signal on any one (1) of the three (3) channels
will stop the scan for 10 seconds to allow you to
listen to the traffic on that location.
Tri-Watch Scan Mode
NOTE
After the Tri-Watch scan stops to monitor a channel,
as long as you do not press any buttons within 10
seconds, your radio will automatically resume
scanning the Tri-Watch channels.
3. Press the Channel Up/Down button to resume
scanning the Tri-Watch channels or to change the
scan direction.
4. To EXIT the Tri-Watch scan, press the TRI-WATCH
button again. The TRI icon will disappear from the
LCD and the radio will return to Marine Standby
mode.
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Page 54
Advanced Operation
Memory Location Mode
MEM/ESC Button
Memory Location Number
Channel Up/Down Button
Channel Number
54 English
Your radio has unlimited memory locations for storing your
most frequently used channels. These memory locations can
be selected individually or can be scanned. (See page 57
under Memory Location Scan.)
To enter Memory mode, press MEM/ESC button. The display
will show the MEM icon and the Memory Channel bank will
be activated and displayed.
To Program Memory Locations:
1. Press and hold the MEM/ESC button for two (2)
seconds. The memory location number will start
flashing and the MEM icon will be turned On.
2. Use the Channel Up/Down button to advance to the
memory location (00-99) you want to program.
3. Press the MEM/ESC button to select the memory
location. The memory channel number will stop
flashing and the channel number will start flashing.
4. Use the Channel Up/Down button to change to the
channel you want to store into the selected memory
location.
5. Press the MEM/ESC button to program that channel.
The memory location number will flash again.
Repeat steps 2 through 5 to program as many
additional memories as you want.
6. Press and hold the MEM/ESC button for two (2)
seconds. This will return the radio to Memory mode.
7. Press and release the MEM/ESC button again to
return to Marine Standby mode.
MRHH325VP-Body-Eng2:400_Body
Operating Your Radio
MEM Icon
10/26/06
12:02 PM
Page 55
Advanced Operation
To Recall a Stored Memory Location:
1. Press the MEM/ESC button. The MEM icon will be
turned On.
2. Press the Channel Up/Down button to select the
memory location. If a memory location has been
programmed, its associated channel will display on
the LCD. Your radio is now in Marine Standby mode
on the selected memory location.
To Exit Memory Location Mode:
Press the MEM/ESC button to return the radio to
Marine Standby mode. The last channel used in
Marine Standby mode will now be displayed on the
LCD and the MEM icon will disappear.
To Erase Stored Memory Locations:
1. Press and hold the MEM/ESC button for two (2)
seconds. The memory location number will start
flashing and the MEM icon will be turned On.
2. Use the Channel Up/Down button to advance to the
memory location you want to erase.
3. Press the MEM/ESC button to select the memory
location. The memory channel number will stop
flashing and the channel number will start flashing.
4. Use the Channel Up/Down button to change to the
channel to read “00” at the selected memory
location.
5. Press the MEM/ESC button to erase that channel.
Repeat steps 2 through 5 to erase as many additional
memories as you want.
6. Press and hold the MEM/ESC button for two (2)
seconds. This will return the radio to Memory mode.
7. Press and release the MEM/ESC button again to
return to Marine Standby mode.
Nothing Comes Close to a Cobra®
55
MRHH325VP-Body-Eng2:400_Body
Operating Your Radio
Scanning
10/26/06
12:02 PM
Page 56
Product Features
Channel Scan Mode
During Channel Scan mode, the radio will rapidly switch
from channel to channel through all the channels. Whenever
any activity is detected, the radio will stop the scan for 10
seconds to allow you to listen briefly on that channel. The
radio will then continue to scan unless you switch out of the
Channel Scan mode.
NOTE
The radio must be squelched for Channel Scan mode
to function. See page 37 for Squelch procedure.
SCAN Button
SCAN Icon
Channel Up/Down Button
56 English
To Enter Channel Scan:
1. From Marine Standby mode, press the SCAN
button. The radio will immediately begin to scan the
entire channel map selected in the active channel
map. The SCAN icon will show on the LCD.
2. A signal on any channel will stop the scan for 10
seconds to allow you to listen to the traffic on that
location.
3. Press the Channel Up/Down button to resume
scanning the Channel Scan channels or to change
the scan direction.
4. To EXIT Channel Scan mode, press the SCAN
button again. The SCAN icon will disappear from the
LCD and the radio will return to Marine Standby
mode.
MRHH325VP-Body-Eng2:400_Body
Operating Your Radio
Memory Location Scan
10/26/06
12:02 PM
Page 57
Product Features
Memory Location Scan Mode
During Memory Location Scan mode, the radio will rapidly
scan through all pre-assigned memory channels. Whenever
any activity is detected on a channel, the radio will stop the
scan for 10 seconds to allow you to listen briefly on that
channel. It will then continue to scan unless you switch out
of Memory Location Scan mode.
NOTE
The radio must be squelched for Memory Location
Scan mode to function. See page 37 for Squelch
procedure.
NOTE
If there are fewer than two (2) memory locations
programmed in the radio, the Memory Location Scan
option will not be available. To program at least two
(2) memory locations, see page 54.
Nothing Comes Close to a Cobra®
57
MRHH325VP-Body-Eng2:400_Body
Operating Your Radio
MEM/ESC Button
SCAN Button
58 English
10/26/06
12:02 PM
Page 58
Product Features
To Enter Memory Location Scan:
1. From Marine Standby mode, press the MEM/ESC
button.
2. Press the SCAN button. The radio will immediately
begin to scan all pre-assigned memory channels.
The SCAN and MEM icons will show on the LCD.
3. A signal on any channel will stop the scan for 10
seconds to allow you to listen to the traffic on that
location.
4. Press the Channel Up/Down button to resume
scanning the Memory Location Scan channels or to
change the scan direction.
5. To EXIT Memory Location Scan mode, press the
SCAN button again. The SCAN and MEM icons will
disappear from the LCD and the radio will return to
Marine Standby mode.
MRHH325VP-Body-Eng2:400_Body
Operating
Your Radio
Introduction
10/26/06
12:02 PM
Page 59
Maintenance and
Troubleshooting
Maintenance
•
Very little maintenance is required to keep your CobraMarine VHF radio
in good operating condition:
 Keep the radio and charger clean by wiping with a soft cloth and mild detergent.
Do not use solvents or harsh or abrasive cleaners, which could damage the
case or scratch the LCD screen.
If the radio is exposed to salt water, wipe with a soft, moist cloth at least once a day to
prevent buildup of salt deposits, which could interfere with button operation.
If the radio will be stored for a long period, such as over the winter,
remove the batteries from the battery tray and store them in a separate
package. This is especially important if you are using alkaline batteries.
Troubleshooting
•
Problem
Possible Cause(s)
Solution(s)
No display on LCD when
radio is turned On
Batteries are exhausted
Recharge or
replace batteries
Batteries not installed
properly
Remove batteries and
reinstall according to
polarity markings
NiMH batteries run
down quickly
Batteries are at the
end of their life
Replace with new
batteries
Will transmit at
one (1) or three (3) watts,
but not at five (5) watts
Batteries are low
Recharge or
replace batteries
Selected channel is imited
to one (1) watt
Switch to
another channel
Will not transmit
Selected channel is
limited to receive only
Switch to
another channel
No sound from speaker
Volume level is too low or
squelch level is too deep
Re-adjust volume
and squelch
No response to
button press
Button lock is On
Press Backlight/
Key Lock button
No answer to calls
Out of range of
other station
Switch to three (3) or five
(5) watts or move closer
Signal is blocked
by terrain
Move until you have a “lineof-sight” to the other station
Nothing Comes Close to a Cobra®
59
MRHH325VP-Body-Eng2:400_Body
Operating
Your Radio
Introduction
10/26/06
12:02 PM
Page 60
Specifications
Specifications
•
General
Number of Channels
Channel Spacing
Modulation
Input Voltage
Battery Life:
5% TX, 5% RX, 90% Standby
Current Drain:
Standby
Receive (Rx)
Transmit (Tx)
Temperature Range
Radio Dimensions
Radio Weight
All U.S., Canadian, International and
NOAA Weather Channels
25 kHz
5 kHz Max.
7.2 VDC
NiMH: 11 hours @ 5 watts,
18.5 hours @ 1 watt
Alkaline: 20 hours @ 5 watts,
35 hours @ 1 watt
40 mA
200 mA
1.8 A @ High Power, 700 mA @ Low Power
-20˚C to 50˚C
4.8" x 2.4" x 1.4"
(123 mm x 62 mm x 36 mm) not
including antenna
0 lbs 8 oz. (228 g) without batteries
Receiver
Frequency Range
Receiver Type
Sensitivity:
20 dB Quieting
12 dB Sinad
Adjacent Channel Selectivity
Intermodulation and Rejection
Spurious and Image Rejection
AF Output
156.050 to 163.275 MHz
Double Conversion Super-Heterodyne
0.35 uV
0.30 uV
-60 dB
-60 dB
-60 dB
250 mW @ 8 Ohms
Transmitter
Frequency Range (Tx):
RF Output Power
Spurious Emissions
Microphone Type
Frequency Stability
FM Hum and Noise
60 English
156.025 to 157.425 MHz
1, 3 or 5 watts
-60 dB @ High Power, -55 dB @ Low
Power
Condenser
+/-10 ppm
40 dB
MRHH325VP-Body-Eng2:400_Body
Warranty
Introduction
10/26/06
12:02 PM
Page 61
Warranty and Trademark
Acknowledgement
Limited 3-Year Warranty
•
For Products Purchased In The U.S.A.
Cobra Electronics Corporation warrants that its CobraMarine VHF radio, and the
component parts thereof, will be free of defects in workmanship and materials
for a period of three (3) years from the date of first consumer purchase. This warranty
may be enforced by the first consumer purchaser, provided that the product is
utilized within the U.S.A.
Cobra will, without charge, repair or replace, at its option, defective radios,
products or component parts upon delivery to the Cobra Factory Service
department, accompanied by proof of the date of first consumer purchase,
such as a duplicated copy of a sales receipt.
You must pay any initial shipping charges required to ship the product for
warranty service, but the return charges will be at Cobra’s expense, if the
product is repaired or replaced under warranty. This warranty gives you
specific legal rights, and you may also have other rights which may vary
from state to state.
Exclusions: This limited warranty does not apply:
1. To any product damaged by accident.
2. In the event of misuse or abuse of the product, or as a result
of unauthorized alterations or repairs.
3. If the serial number has been altered, defaced, or removed.
4. If the owner of the product resides outside the U.S.A.
All implied warranties, including warranties of merchantability and fitness for a
particular purpose are limited in duration to the length of this warranty. Cobra
shall not be liable for any incidental, consequential or other damages; including,
without limitation, damages resulting from loss of use or cost of installation.
Some states do not allow limitations on how long an implied warranty lasts and/or
do not allow the exclusion or limitation of incidental or consequential damages,
so the above limitations may not apply to you.
For Products Purchased Outside The U.S.A.
Please contact your local dealer for warranty information.
Trademark Acknowledgement
•
Cobra®, CobraMarine®, Nothing Comes Close to a Cobra®, and the snake design are
registered trademarks of Cobra Electronics Corporation, USA.
Cobra Electronics Corporation™ is a trademark of Cobra Electronics Corporation,
USA.
Nothing Comes Close to a Cobra®
61
MRHH325VP-Body-Eng2:400_Body
Customer
Service
Introduction
10/26/06
12:02 PM
Page 62
Product Service
Product Service
•
If you have any questions about operation or installing your
new CobraMarine VHF product or if you are missing parts…
Please call Cobra first! DO NOT RETURN THIS PRODUCT TO THE STORE!
See customer assistance on page A1.
If your product should require factory service, please call Cobra first before
sending your radio. This will ensure the fastest turn-around time on your repair.
You may be asked to send your radio to the Cobra factory. It will be necessary to
furnish the following to have the product serviced and returned:
1. For warranty repair, include some form of proof-of-purchase, such as a
photocopy of a sales receipt. If you send the original receipt, it cannot be
returned.
2. Send the entire product.
3. Enclose a description of what is happening with the radio. Include a typed
or clearly printed name and address of where the radio is to be returned.
4. Pack radio securely to prevent damage in transit. If possible, use the
original packing material.
5. Ship prepaid and insured by way of a traceable carrier such as United Parcel
Service (UPS) or Priority Mail to avoid loss in transit to: Cobra Factory Service,
Cobra Electronics Corporation, 6500 West Cortland Street, Chicago, Illinois
60707 U.S.A.
6. If the radio is in warranty, upon receipt of your radio, it will either be repaired
or exchanged depending on the model. Please allow approximately three (3)
to four (4) weeks before contacting Cobra for status. If the radio is out of
warranty, a letter will automatically be sent informing you of the repair
charge or replacement charge.
7. If your radio is returned for factory repair, it will be returned to you with
default settings restored.
If you have any questions, please call 773-889-3087 for assistance.
62 English
MRHH325VP-Body-Eng2:400_Body
Customer Service
Introduction
10/26/06
12:02 PM
Page 63
Accessories
Accessories
•
Your Cobra radio comes with several accessories that will enhance the use of the
radio and also offer convenience to the end user.
Alkaline Battery Tray
Alkaline Battery Tray
A special alkaline battery tray (P/N CM 110-011) is
available as an optional accessory to have as an
emergency backup. By using six (6) high-quality AA
alkaline batteries, you can have a spare battery backup
source for your radio.
NOTE
Alkaline batteries are not rechargeable.
Lapel Speaker/Microphone
Lapel Speaker/Microphone
A speaker/microphone, that attaches to your lapel, by
ordering P/N CM 330-001.
This unique accessory allows you to wear the radio on
your belt while still being able to communicate with other
vessels. A small Push to Talk button on the lapel speaker/
microphone allows you to answer any incoming call.
Nothing Comes Close to a Cobra®
63

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