Cobra Electronics Fish Finder Mrf 80b User Manual

Printed in China Part No. 480-345P  
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Table Of Contents  
Introduction  
Introduction  
Our Thanks to You . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1  
Customer Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A1  
Transceiver Controls, Indicators and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . A2  
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A3  
Microphone/Speaker with Auxiliary Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A4  
Backlit LCD (Liquid Crystal Display) Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A5  
Important Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Recommendations for Marine Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
VHF Marine Radio Protocols  
FCC Licensing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
VHF Marine Radio Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
Voice Calling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Digital Selective Calling (DSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
Maritime Mobile Service Identity (MMSI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
Radiotelephone Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Emergency Messages Distress Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Marine Distress Procedure – DSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
VHF Marine Channel Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
NOAA Weather Channels and Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
World City Time Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
Installation and Start-Up  
Included in this Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Mounting and Powering the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Antenna Requirements and Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
External Devices and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33  
Operating Your Radio  
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36  
Setup Mode Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41  
Special Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45  
Voice Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47  
NOAA All Hazards/Weather Radio and Alert, w/SAME . . . . . . . . . . . . . . . . . . . . . . . . . 50  
Advanced Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53  
Digital Select Calling (DSC) SetUp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58  
Digital Select Calling (DSC) Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63  
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76  
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77  
Warranty and Trademark  
Limited 3-Year Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78  
Trademark Acknowledgement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78  
Customer Service  
Product Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79  
Flush Mount Template . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80  
®
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Important Safety Information  
Introduction  
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  
2
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Important Safety Information  
Introduction  
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 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.  
NOTE  
Throughout this manual, the term “Transceiver” will be used to identify the  
main unit containing the LCD screen and controls. The term “Radio” will be  
used to identify the entire equipment including transceiver, microphone,  
antenna and any attached external speakers.  
®
Nothing Comes Close to a Cobra  
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Recommendations for  
Marine Communication  
Introduction  
NOTICE  
AVOID using or storing the radio at temperatures below -4°F (-20°C) or  
above 140°F (60°C).  
NEVER connect the transceiver to DC power greater than 16 volts or to  
any DC source with reversed polarity. Doing so will damage the transceiver.  
DO NOT cut the power cables attached to the transceiver. Improper  
reconnection with reversed polarity will damage the transceiver.  
POSITION your radio, external speakers and cables at least 3 ft (0,9 m) away from  
your vessel’s magnetic navigation compass. CHECK your compass before and  
after installation to be sure that it has not introduced any deviation.  
DO NOT attempt to service any internal parts yourself. Have any  
necessary service performed by a qualified technician.  
DO NOT drop the transceiver or microphone/speaker. Doing so may  
crack the case or damage a waterproof seal. Once these items have  
been dropped, the original waterproofing cannot be guaranteed.  
DO NOT use chemicals or solvents such as mineral spirits and alcohol  
to clean your radio. They may damage the case surfaces.  
Changes or modifications to your radio MAY VOID its compliance with FCC (Federal  
Communication Commission) rules and make it illegal to use.  
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 near-shore  
voyages. If the 25 watt maximum output of your radio is not sufficient for the  
distances you travel from the coast, consider installing a more powerful radio 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 onboard where cellular coverage  
is available — to allow social conversations and keep the marine frequencies  
uncluttered and available for their intended use.  
English  
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FCC Licensing Information  
VHF Marine Radio Protocols  
FCC Licensing Information  
CobraMarine VHF radios comply with the FCC (Federal Communication Commission)  
requirements that regulate the Maritime Radio Service.  
This CobraMarine radio incorporates a VHF FM transceiver designed for use in  
the frequency range of 156.025 to 163.275 MHz. It requires 13.8 volts DC and  
has a switchable RF output power of one (1) or 25 watts.  
The radio is capable of Class-D DSC (Digital Selective Calling) operation.  
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 key.  
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 a 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  
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.  
®
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VHF Marine Radio  
Procedures  
VHF Marine Radio Protocols  
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.  
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. Try a second call  
after waiting two (2) minutes. If there is no answer, switch to a higher power. This  
will conserve your battery and minimize interference to other users by avoiding  
repeated calls.  
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) with 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.  
English  
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Voice Calling  
VHF Marine Radio Protocols  
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.  
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.  
Voice Calling  
To Call Another Vessel or Shore Installation (e.g. Lock or Bridge Tender):  
Make sure your radio is On.  
Select Channel 16 and listen to make sure it is not being used.  
NOTE  
Channel 9 may be used by recreational vessels for general-purpose  
calling. This frequency should be used whenever possible to relieve  
congestion on Channel 16.  
When the channel is quiet, press the Talk button and call the vessel you wish  
to call. (Hold the microphone/speaker a few inches from your face and speak  
directly into it in a normal tone of voice — clearly and distinctly.) Say “[name  
of station being called] THIS IS [your vessel’s name or call sign].”  
Once contact is made on the calling channel, you must switch to a proper  
working channel. See the channel listing on page 14 through 15.  
®
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Digital Selective Calling (DSC)  
VHF Marine Radio Protocols  
For Example  
The vessel Corsair calling the vessel Vagabond:  
Corsair: “Vagabond, this is Corsair (station license number call sign).”  
Vagabond: “Corsair, this is Vagabond. Over.”  
Corsair: “Vagabond go to working Channel 68. Over.”  
Both parties switch over to the agreed upon working channel....  
Corsair: “Vagabond I need to talk to you about... Over.”  
Vagabond: “Corsair in answer to your question about... Over.”  
Corsair: “Vagabond, thanks for the information about... (call sign and out).”  
After each transmission, say “OVER” and release the microphone Push to Talk (PTT)  
button. This confirms that the transmission has ended. When all communication with  
the other vessel is totally completed, end the message by stating your call sign and the  
word “OUT.” Remember, it is not necessary to state your call sign with each  
transmission, only at the beginning and end of the message.  
NOTE  
For best sound quality at the shore station or other vessel receiving your call,  
hold the microphone/speaker at least 2 in. (51 mm) from your mouth and  
slightly off to one (1) side. Speak in a normal tone of voice.  
Digital Selective Calling (DSC)  
Digital selective calling (DSC) is a semi-automated system for establishing a radio  
call. It has been designed by the International Maritime Organization (IMO)  
as an international standard for VHF, MF and HF calls and is part of the  
Global Maritime Distress and Safety System (GMDSS).  
DSC will eventually replace aural (listening) watches on distress frequencies  
and will be used to announce routine and urgent maritime safety information  
broadcasts. Until DSC is fully implemented, it is still necessary to maintain a  
listening watch on Channel 16.  
The DSC system allows mariners to instantly send a distress call with GPS  
position coordinates (requires a GPS receiver to be connected to the radio)  
to the Coast Guard and other vessels within range of the transmission.  
DSC also allows mariners to initiate and receive distress, urgent, safety,  
routine, position request, position send and group calls between vessels  
equipped with DSC capable radios.  
English  
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Maritime Mobile  
Service Identity (MMSI)  
VHF Marine Radio Protocols  
Maritime Mobile Service Identity (MMSI)  
An MMSI is a nine (9) digit number used on a marine radio capable of using digital  
selective calling (DSC). It is used to selectively call other vessels or shore stations  
and is similar to a telephone number.  
For your CobraMarine radio to operate in the DSC mode, you must enter your  
Maritime Mobile Service Identity (MMSI) number. See page 62 for instructions  
on how to enter your number.  
MMSI Numbers are available in the U.S.A. from these Sources:  
Maritel: 888-Maritel (888-627-4835)  
In Canada, Contact:  
Industry Canada Spectrum Management Office (only available on the Internet):  
To Obtain an MMSI Number Outside the U.S.A.:  
Users can obtain an MMSI from their country’s telecommunications authority  
or ship registry. This may involve amending or obtaining a ship station license.  
WARNING  
This equipment is designed to generate a digital maritime distress and  
safety signal to facilitate search and rescue. To be effective as a safety  
device, this equipment must be used only within communication range  
of a shore-based VHF marine channel to distress and safety watch system.  
The range of the signal may vary, but under normal conditions should be  
approximately 20 nautical miles.  
®
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Radiotelephone Calls  
VHF Marine Radio Protocols  
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 14 through 23 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. Those 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.  
English  
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F80 General.qxp:QXP-1058731464.qxp 12/29/06 9:07 AM Page 11  
Emergency Messages  
and Distress Procedure  
VHF Marine Radio Protocols  
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.  
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.  
®
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Emergency Messages  
and Distress Procedure  
VHF Marine Radio Protocols  
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.  
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.  
English  
12  
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F80 General.qxp:QXP-1058731464.qxp 12/29/06 9:07 AM Page 13  
Emergency Messages  
and Distress Procedure  
VHF Marine Radio Protocols  
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 adults, three 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.  
Marine Distress Procedure – DSC  
Digital Selective Calling (DSC) is a semi-automated system that will allow you to  
press the Distress button from any routine to make a distress call. When the  
distress button is pressed, all other channels go to Standby mode and allow the  
digitally encoded “pre-programmed” message to take precedence. Important  
information such as your MMSI number, position and name will be transmitted on  
Channel 16. The distress alarm will sound for two (2) minutes or until the alarm is  
cleared.  
The DSC system allows you to choose a “pre-programmed” distress call such as:  
“Man Overboard, Sinking, Collision.” There are many pre-programmed choices to  
choose from. If a GPS is connected to your radio, your coordinates will also be sent  
to the Coast Guard as well as to other vessels that are within range of the  
transmission. DSC calling also allows the user to initiate and receive distress,  
urgent, safety, routine, position request, position send and group calls between  
vessels equipped with DSC capable radios.  
WARNING  
This radio will generate a digital maritime distress and safety signal to help  
facilitate search and rescue. This radio must be used only within  
communication range of a shore based VHF station with a distress and safety  
watch system. The range of the signal may vary, however, under normal  
conditions should be approximately 20 nautical miles.  
®
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F80 General.qxp:QXP-1058731464.qxp 12/29/06 9:07 AM Page 14  
VHF Marine  
Channel Assignments  
VHF Marine Radio Protocols  
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 pages 16-23).  
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 (U.S and Canadian)  
Channel 22A  
To talk to the 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.  
English  
14  
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VHF Marine  
Channel Assignments  
VHF Marine Radio Protocols  
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.  
®
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VHF Marine  
Channel Assignments  
VHF Marine Radio Protocols  
Channel  
Number  
Channel Map  
Frequency  
Power  
Limits  
USA  
Int’l Canada Transmit Receive  
01  
01A  
02  
156.050  
156.050  
156.100  
156.150  
156.150  
156.200  
156.200  
156.250  
156.250  
156.300  
156.350  
156.350  
156.400  
156.450  
156.500  
156.550  
156.600  
160.650  
156.050  
160.700  
160.750  
156.150  
160.800  
156.200  
160.850  
156.250  
156.300  
160.950  
156.350  
156.400  
156.450  
156.500  
156.550  
156.600  
03  
03A  
04  
04A  
05  
05A  
06  
07  
07A  
08  
09  
10  
11  
12  
13  
156.650  
156.650 1 watt USA and CAN  
14  
15  
15  
16  
17  
156.700  
Rx Only  
156.750  
156.800  
156.850  
156.700  
156.750  
156.750 1 watt CAN and INT  
156.800  
156.850 1 watt USA and CAN  
English  
16  
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F80 General.qxp:QXP-1058731464.qxp 12/29/06 9:07 AM Page 17  
VHF Marine  
Channel Assignments  
VHF Marine Radio Protocols  
Channel Use  
01  
01A  
02  
Public Correspondence (Marine Operator)  
Port Operations and Commercial, VTS in selected areas  
Public Correspondence (Marine Operator)  
Public Correspondence (Marine Operator)  
Government Only (Unauthorized)  
03  
03A  
04  
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  
04A  
05  
05A  
06  
Intership Safety  
07  
Public Correspondence (Marine Operator), Port Operations, Ship Movement  
Commercial  
07A  
08  
Commercial (Intership Only)  
09  
Boater Calling Channel, Non-Commercial (Recreational)  
Commercial  
10  
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  
15  
15  
16  
17  
Port Operations, VTS in selected areas  
Environmental (Receive Only). Used by class C EPIRB’s.  
Canada (EPIRB Buoys Only); International (On-Board Communication)  
International Distress, Safety and Calling  
State Controlled (U.S.A. Only)  
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VHF Marine  
Channel Assignments  
VHF Marine Radio Protocols  
Channel  
Number  
Channel Map  
Frequency  
Power  
Limits  
USA  
Int’l Canada Transmit Receive  
18  
18A  
19  
156.900  
156.900  
156.950  
156.950  
157.000  
157.000  
157.050  
157.050  
157.100  
161.500  
156.900  
161.550  
156.950  
161.600  
157.000  
161.650  
157.050  
161.700  
19A  
20  
1 watt CAN  
20A  
21  
21A  
22  
22A  
157.100  
157.100  
23  
23A  
24  
157.150  
157.150  
157.200  
157.250  
157.300  
157.350  
157.400  
156.025  
156.075  
161.750  
157.150  
161.800  
161.850  
161.900  
161.950  
162.000  
160.625  
160.675  
25  
26  
27  
28  
60  
61  
61A  
156.075  
156.075  
62  
156.125  
156.125  
160.725  
156.125  
62A  
English  
18  
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VHF Marine  
Channel Assignments  
VHF Marine Radio Protocols  
Channel Use  
18  
18A  
19  
Port Operations, Ship Movement  
Commercial  
Port Operations, Ship Movement  
Commercial  
19A  
20  
Canada (Coast Guard Only); International (Port Operations, Ship Movement)  
Port Operations  
20A  
21  
Port Operations, Ship Movement  
U.S. (Government Only); Canada (Coast Guard Only)  
Port Operations, Ship Movement  
21A  
22  
22A  
U.S. and Canadian Coast Guard Liaison and Maritime Safety Information  
Broadcasts that are announced on Channel 16  
23  
23A  
24  
Public Correspondence (Marine Operator)  
Government 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), Port Operation, Ship Movement  
25  
26  
27  
28  
60  
61  
61A  
U.S. (Government Only); Canada (Coast Guard Only);  
West Coast (Coast Guard Only); East Coast (Commercial Fishing)  
62  
Public Correspondence (Marine Operator), Port Operations, Ship Movement  
62A  
West Coast (Coast Guard Only); East Coast (Commercial Fishing)  
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VHF Marine  
Channel Assignments  
VHF Marine Radio Protocols  
Channel  
Number  
Channel Map  
Frequency  
Power  
Limits  
USA  
Int’l Canada Transmit Receive  
63  
63A  
64  
156.175  
156.175  
156.225  
156.225  
156.275  
156.275  
156.325  
156.325  
160.775  
156.175  
160.825  
156.225  
160.875  
156.275  
160.925  
156.325  
64A  
65  
65A  
66  
66A  
1 watt CAN  
1 watt USA  
67  
68  
69  
70  
71  
72  
73  
156.375  
156.425  
156.475  
156.525  
156.575  
156.625  
156.675  
156.375  
156.425  
156.475  
156.525  
156.575  
156.625  
156.675  
DSC Use Only  
74  
75  
76  
77  
156.725  
156.775  
156.825  
156.875  
156.725  
156.775  
156.825  
1 watt Only INT  
1 watt Only INT  
156.875 1 watt USA and CAN  
English  
20  
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VHF Marine  
Channel Assignments  
VHF Marine Radio Protocols  
Channel Use  
63  
63A  
64  
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  
64A  
65  
65A  
66  
Public Correspondence (Marine Operator), Port Operations, Ship Movement  
Port Operations  
66A  
67  
U.S. (Commercial). Used for bridge-to-bridge communications in lower  
Mississippi River (Intership Only); Canada (Commercial Fishing), S&R  
68  
69  
Non-Commercial (Recreational)  
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  
73  
Non-Commercial (Intership Only)  
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  
76  
77  
Port Operations (Intership Only)  
Port Operations (Intership Only)  
Port Operations (Intership only). Restricted to communications  
with pilots for movement and docking of ships.  
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VHF Marine  
Channel Assignments  
VHF Marine Radio Protocols  
Channel  
Number  
Channel Map  
Frequency  
Power  
Limits  
USA  
Int’l Canada Transmit Receive  
78  
78A  
79  
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  
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  
79A  
80  
80A  
81  
81A  
82  
82A  
83  
83A  
84  
84A  
85  
85A  
86  
86A  
87  
87A  
88  
157.425  
157.425  
162.025  
157.425  
88A  
NOTE  
Many of the plain numbered channels, such as 01, 02 and 03, transmit on one  
frequency and receive on another. 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 A2).  
English  
22  
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F80 General.qxp:QXP-1058731464.qxp 12/29/06 9:07 AM Page 23  
VHF Marine  
Channel Assignments  
VHF Marine Radio Protocols  
Channel Use  
78  
78A  
79  
Public Correspondence (Marine Operator)  
Non-Commercial (Recreational)  
Port Operations, Ship Movement  
79A  
80  
Commercial (Also Non-Commercial only in Great Lakes)  
Port Operations, Ship Movement  
80A  
81  
Commercial (Also Non-Commercial only in Great Lakes)  
Port Operations, Ship Movement  
81A  
82  
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)  
82A  
83  
83A  
84  
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)  
84A  
85  
85A  
86  
86A  
87  
87A  
88  
Public Correspondence (Ship to Coast). In U.S. only within  
75 miles of Canadian Border.  
88A  
Commercial Intership Only  
NOTE  
All channels are pre-programmed 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.  
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F80 General.qxp:QXP-1058731464.qxp 12/29/06 9:07 AM Page 24  
NOAA Weather Channels  
and Alert  
VHF Marine Radio Protocols  
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 and DSC Channel 70. 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 the weather alert alarm tone from the speaker and a “weather alert”  
message on the LCD to signal that a weather alert is being broadcast.  
The radio will automatically switch to Weather Radio mode.  
Test  
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 feature to verify that this feature is  
functioning properly.  
Weather Frequency/Channel  
Channel  
RX Frequency MHz Weather Channel  
1
162.550  
162.400  
162.475  
162.425  
162.450  
162.500  
162.525  
161.650  
161.775  
163.275  
NOAA  
2
3
NOAA  
NOAA  
4
NOAA  
5
NOAA  
6
NOAA  
7
NOAA  
8
Canadian  
Canadian  
NOAA  
9
10  
English  
24  
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F80 General.qxp:QXP-1058731464.qxp 12/29/06 9:07 AM Page 25  
World City Time Zones  
VHF Marine Radio Protocols  
World City Time Zones  
In order to set correct local time as compared to different World City Time Zones,  
enter the hour “offset” as listed below. The correct local time appears on the VHF for  
Cities all over the world. See page 43 for setup information.  
Longitudinal Zone  
Offset  
City  
E172.50 to W172.50  
W172.50 to W157.50  
W157.50 to W142.50  
W142.50 to W127.50  
W127.50 to W112.50  
W112.50 to W097.50  
W097.50 to W082.50  
W082.50 to W067.50  
W067.50 to W052.50  
W052.50 to W037.50  
W037.50 to W022.50  
W022.50 to W007.50  
W007.50 to E007.50 GMT  
E007.50 to E022.50  
E022.50 to E037.50  
E037.50 to E052.50  
E052.50 to E067.50  
E067.50 to E082.50  
E082.50 to E097.50  
E097.50 to E112.50  
E112.50 to E127.50  
E127.50 to E142.50  
E142.50 to E157.50  
E157.50 to E172.50  
E172.50 to W172.50  
-12  
-11  
-10  
-9  
IDLW (International Date Line West)  
Nome  
Honolulu  
Yukon STD  
Los Angeles STD  
Denver STD  
Chicago STD  
New York STD  
Caracas  
-8  
-7  
-6  
-5  
-4  
-3  
Rio de Janeiro  
Fernando de Noronha  
Azores Islands  
London  
-2  
-1  
+0  
+1  
+2  
+3  
+4  
+5  
+6  
+7  
+8  
+9  
+10  
+11  
+12  
Rome  
Cairo  
Moscow  
Abu Dhabi  
Maldives  
Dhuburi  
Bangkok  
Hong Kong  
Tokyo  
Sydney  
Solomon Islands  
Auckland  
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F80 Installation.qxp:QXP-1058720374.qxp 12/29/06 10:02 AM Page 26  
Included in this Package  
Installation and Start-Up  
Included in this Package  
You should find all of the following items in the  
package with your CobraMarine VHF radio:  
Transceiver  
Transceiver Flush Mount Kit  
Transceiver Surface Mount Kit  
Operating Instruction Manual  
Microphone  
Mic Mounting Kit  
16/9  
Warning Sticker  
Power/Interface Cables  
WARNING  
This equipment is designed to generate  
maritime distress and safety signal to facilitate  
search and rescue. To be effective as safety  
device, this equipment must be used only within  
communication range of shore-based VHF  
a
digital  
a
a
marine channel 70 distress and safety watch  
system. The range of the signal may vary out  
under normal conditions should be approximately  
20 nautical miles.  
NOTE  
Cobra Accessory Harness CM 140-001 is an optional wire harness that is  
used to interface the MR F80 radio with the Cobra MC 600C Series  
chartplotters.  
English  
26  
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F80 Installation.qxp:QXP-1058720374.qxp 12/29/06 10:02 AM Page 27  
Mounting and  
Powering the Radio  
Installation and Start-Up  
Mounting and Powering the Radio  
Before using your CobraMarine VHF radio, it must be installed on your vessel.  
Installing Your Radio  
Choose a location for your radio where it will be conveniently accessible with the  
following factors in mind:  
The leads to the battery and the antenna should be as short as possible.  
The antenna must be mounted at least 3 ft (0,9 m) from the transceiver.  
The radio and all speakers need to be far enough from any magnetic  
compass to avoid deviation due to the speaker magnet.  
There needs to be free air flow around the heat-sink fins on the back  
of the transceiver.  
Surface Mount  
A Surface Mounting kit is included with your CobraMarine VHF radio to allow its  
installation on almost any flat horizontal surface.  
Surface Mounting Kit  
To Mount the Transceiver  
on Almost any Flat Surface:  
1. Use the mounting bracket as a template  
to drill holes for the mounting screws.  
2. Attach the mounting bracket to the  
chosen surface with the mounting  
bracket screws and washers.  
3. Attach the transceiver to the mounting  
bracket with the Tilt Lock knobs.  
Tilt Lock Knobs  
4. Tilt the transceiver to a convenient  
angle and tighten the Tilt Lock knobs.  
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Mounting and  
Powering the Radio  
Installation and Start-Up  
Microphone Bracket  
Mounting Kit  
Microphone Bracket Mounting Kit  
To Install The Microphone Bracket Mounting Kit:  
Install the microphone bracket mounting kit on a  
vertical surface near the transceiver using the  
supplied stainless steel screws.  
Flush Mount  
A Flush Mount kit is included with your CobraMarine VHF  
radio to allow its installation in almost any flat surface.  
To Mount the Transceiver Flush in Almost any Flat Surface:  
Use Supplied Template  
1. Use the supplied template (VHF Radio MRF80) to mark  
and cut an opening in the flat surface. See page 80 for  
template.  
See final pages  
for template.  
NOTICE  
Insert Transceiver  
Before cutting, be sure the area behind the flat  
surface is clear of any instruments, wires or structure  
that might be damaged in the process.  
2. Insert the transceiver into the opening.  
Attach Mounting Brackets  
3. Attach the mounting brackets to  
the sides of the transceiver with  
the adjusting screw flanges facing  
the back of the flat surface.  
4. Tighten the adjusting screws against  
the back of the flat surface until the  
flange on the front of the transceiver  
is tight against the flat surface. Do not  
over-tighten.  
Adjusting Screws  
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Mounting and  
Powering the Radio  
Installation and Start-Up  
Warning Sticker  
Warning Sticker  
WARNING  
This equipment is designed to generate  
maritime distress and safety signal to facilitate  
search and rescue. To be effective as safety  
device, this equipment must be used only within  
a
digital  
a
FCC regulations require that the Warning Sticker  
supplied with this radio be applied to a spot where  
it is easily seen by the radio operator. Be sure the  
location is clean and dry before applying the sticker.  
communication range of  
a
shore-based VHF  
marine channel 70 distress and safety watch  
system. The range of the signal may vary out  
under normal conditions should be approximately  
20 nautical miles.  
Electrical Power Connection  
Power Connection Cable  
Electrical power is supplied to the  
transceiver by two (2) bullet-type  
connectors coming from a 13.8-volt DC  
voltage source (12-volt nominal). The  
positive lead must be attached to a fused  
Red Cable  
Positive (+)  
connector.  
To Connect to a Power Source:  
1. Attach the black (-) wire to a  
negative (-) ground.  
Black Cable  
Negative (-)  
2. Attach the fused red power (+) wire  
to the positive (+) side of the power  
system.  
NOTE  
This radio will draw up to 8 amps when transmitting at full power.  
NOTE  
Cobra Accessory Harness CM 140-001 is an optional wire harness that is  
used to interface the MR F80 radio with the Cobra MC 600C Series  
chartplotters.  
NOTICES  
A reverse polarity connection will damage the radio.  
When replacing the fuse in your transceiver, use only the size and type  
originally provided.  
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Mounting and  
Powering the Radio  
Installation and Start-Up  
NOTE  
All wiring is best kept as short as possible. If the power leads must be  
extended, use a high-quality, marine-grade cable sized for up to 10 amps  
of current. To minimize voltage drop, choose a wire gauge as follows:  
Length  
Wire Gauge  
1.6 mils(#14)  
2.0 mils(#12)  
2.6 mils(#10)  
3.3 mils(#8)  
Up to 1.5m(4.9ft)  
Up to 3.0m(9.8 ft)  
Up to 5.0m(16.4 ft)  
Up to 6.0m(19.7 ft)  
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Antenna Requirements  
and Attachment  
Installation and Start-Up  
Antenna Requirements and Attachment  
Antenna Requirements  
Your CobraMarine VHF radio requires an external marine antenna  
to send signals into the air and to receive them. The radio is arranged  
to use any of the popular marine VHF antennas, but it is up to you to  
choose which antenna to use.  
Since it represents the link between your radio and the outside world,  
Cobra suggests you purchase the best quality antenna, coaxial cable  
and connectors you can. This is best accomplished with the advice  
and guidance of a knowledgeable dealer who can assess the variables  
involved with your particular boat and preferences.  
WARNING  
Compliance with FCC requirements for Radio Frequency Exposure is  
the responsibility of both the antenna installer and the radio operator.  
Safe Maximum Permissible Exposure (MPE) Radius  
To avoid health hazards from excessive exposure to RF energy, FCC OET  
Bulletin 65 establishes an MPE radius of 10 ft (3 m) for the maximum power  
of your radio with an antenna having a maximum power gain of 9 dBi.  
This means that all persons must be at least 10 ft (3 m) away from the  
antenna when the radio is transmitting.  
Installation Requirements  
An omnidirectional antenna with a gain not greater than 9 dBi must  
be mounted at least 16.4 ft (5 m) above the highest deck where people  
may be during radio transmissions, measured vertically from the lowest  
point of the antenna. This provides the minimum separation distance  
to comply with RF exposure requirements and is based on the MPE  
radius of 10 ft (3 m) plus the 6.6 ft (2 m) height of an adult.  
For vessels without structure to mount the antenna as described in A,  
it must be mounted as follows AND all persons must be outside the  
10 ft (3 m) MPE radius during radio transmissions. The antenna must  
be mounted so that its lowest point is at least 3.3 ft (1 m) vertically above  
the heads of all persons during radio transmissions.  
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Antenna Requirements  
and Attachment  
Installation and Start-Up  
WARNING  
Do not transmit when anyone is within the MPE radius of the antenna unless  
that person or persons are shielded from the antenna by a grounded metallic  
barrier. This is especially important on vessels with antennas mounted as  
described in B where no one may be within 9 ft (2,8 m) horizontally from the  
base of the antenna during transmissions.  
FAILURE TO OBSERVE THE ABOVE LIMITS MAY EXPOSE THOSE WITHIN  
THE MPE RADIUS TO RF ENERGY ABSORPTION IN EXCESS OF THE FCC  
MAXIMUM PERMISSIBLE EXPOSURE. IT IS THE RADIO OPERATOR’S  
RESPONSIBILITY TO ENSURE THAT MPE LIMITS ARE HEEDED AND THAT  
NO ONE IS WITHIN THE MPE RADIUS DURING TRANSMISSIONS.  
Antenna Lead Attachment  
Coaxial Cable Socket  
Once the antenna is installed, the Coaxial Cable Lead can  
be attached to the coaxial cable socket at the back of the  
transceiver.  
NOTICE  
Attempting to transmit without an antenna attached  
will damage your CobraMarine VHF radio.  
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External Devices  
and Connections  
Installation and Start-Up  
External Devices and Connections  
Your CobraMarine VHF radio is set up to connect auxiliary devices for navigation,  
convenience and added versatility. As is the case with the antenna, choosing these  
devices is best done with the advice and guidance of a knowledgeable dealer.  
Standard connectors are provided on the front and back of the transceiver.  
NMEA Communication Cable  
Your CobraMarine Radio is set up with an NMEA communication port that allows the  
radio to communicate with other electronic equipment such as a GPS Chartplotter,  
Depth Sounder, Auto Pilot, DSC VHF Radio, Radar and Personal Computer with the  
ability to display information. This capability allows for the operator to do Position  
Polling and Position Requests directly from the radio. The NMEA input and output  
leads are directed through the NMEA communication port.  
NMEA Cable  
External Speaker (Not Included)  
An External Speaker can provide greater volume to hear messages than the speaker  
in the transceiver.  
To Install an External Speaker:  
1. Connect the speaker positive (+) wire to the orange wire coming out of the  
standard speaker/PA wire harness.  
2. Connect the speaker negative (-) wire to the black/white wire coming out of the  
standard speaker/PA wire harness.  
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External Devices  
and Connections  
Installation And Start-Up  
Public Address Speaker (Not Included)  
At times, it may be handy to address other boats or give  
instructions to line handlers on the dock. Your CobraMarine  
VHF radio can be switched to operate in the Public Address  
mode through an attached PA speaker.  
Speaker/PA Cable  
To Install a Public Address Speaker:  
1. Connect the PA speaker positive (+) wire to the rose red  
wire coming out of the standard speaker/PA wire harness.  
2. Connect the PA speaker negative (-) wire to the  
black/white wire coming out of the standard speaker/PA  
wire harness.  
Global Positioning System (GPS) Device  
(Not Included)  
Cobra Electronics strongly recommends that you obtain and  
connect a GPS device to your CobraMarine VHF radio. By  
having a GPS connected, your position will  
be continuously indicated on the LCD and, most importantly,  
it will be included automatically in any DSC distress  
NMEA/IO Cable  
message you may need to send. That will  
take the “search” out of “search and rescue.”  
To Install a GPS Device:  
1. Install the GPS device in a convenient location according  
to its manufacturer’s directions.  
2. Bond the NMEA out negative (-) wire of your GPS to the  
NMEA in negative (-) wire (green) of the MR F80  
NMEA/IO interface cable.  
3. Bond the NMEA out positive (+) wire of your GPS to the  
NMEA in positive (+) wire (white) of the MR F80  
NMEA/IO interface cable.  
NOTE  
When bonding the wires, make sure connections are  
secure and properly insulated to prevent electrical  
arching.  
4. Connect the new combination cable to the GPS device  
and to the back of the transceiver.  
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External Devices  
and Connections  
Operating Your Radio  
NOTE  
Satellite acquisition time is dependent on the GPS device.  
CobraMarine Chartplotter MC 600C Series  
Your CobraMarine VHF radio is set up to connect directly to your chartplotter with a  
custom accessory cable that eases the installation.  
The chartplotter uses a state-of-the-art electronic chart system, designed as a  
custom navigation aid. All calculations and information necessary for the navigation  
are performed and displayed on the chartplotter quickly and accurately providing all  
of the capabilities of a conventional GPS, but with the added benefit of a powerful  
electronic chart display.  
Wiring the chartplotter to the transceiver is made easy with a custom-made optional  
Accessory Cable harness P/N CM 140-001. This cable has a molded 8-pin connector  
that plugs directly into the appropriate connectors on the MR F80 and the MC 600C  
Series.  
To Install the Chartplotter:  
1. Install the chartplotter in a convenient location according to the chartplotter  
owner’s manual.  
2. Complete the Electrical Power Connection to the power cable as detailed on  
page 29.  
3. Connect the red and black bullet connectors on the power cable supplied with the  
MR F80 to the mating connectors on the CM 140-001 cable.  
4. Connect the red and black bullet connectors on the back of the radio to the  
mating connectors on the CM 140-001 cable.  
5. Plug in the 8 pin connectors to the MR F80 and MC 600C.  
MR F80 to Chartplotter Connection  
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Getting Started  
Operating Your Radio  
Getting Started  
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 buttons  
on the transceiver or on the microphone/speaker. Press means a momentary press,  
then release; press and hold means to hold the button down.  
Tones and Alarms  
When your CobraMarine VHF radio is On, you can expect to hear the following tones  
and alarms. The volume of these sounds is controlled by the circuitry in  
the radio and is not affected by the volume set with the On-Off Power/Volume  
knob or Volume Up/Down buttons.  
Confirmation Tone  
A single, high-pitched beep confirms all button presses except the Talk button.  
It can be turned On or Off. See setup routines on page 41.  
Error Tone  
Three (3) medium-pitch tones indicate an invalid button press (error).  
DSC Distress Alarm  
High—low—high—low—high. Pause, then repeat. The volume of this alarm will  
increase after 10 seconds. Press any button to turn it Off.  
NOTE  
This alarm sounds only for DSC distress calls on Channel 70.  
It does not sound for voice calls on Channel 16 — you still  
must listen for those.  
Distress Acknowledgement Alarm  
High—low. Long pause, then repeat. Press any button to turn it Off.  
DSC Routine Call Alarm  
High—pause—high—pause—high. Long pause, then repeat. Press any button to  
turn it Off.  
DSC Geographical Alarm  
Loud, continuous, medium-pitched, high-low tones (warble) — sounds  
when a geographical call is received. Press any button to turn it Off.  
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Getting Started  
Operating Your Radio  
DSC Position Request Alarm  
Medium-loud, continuous, low-pitched series of closely  
spaced, four (4) beeps [three (3) short – one (1) long]  
groups — sounds when a POSITION REQUEST call is  
received. Press any button to turn it Off.  
DSC Individual Alarm  
Medium-loud, continuous, medium-pitched, three (3) beep  
groups — sounds when an Individual call is received. Press  
any button to turn it Off.  
Weather Alarm  
Medium-loud, continuous, medium-pitched series of one-  
half second beeps spaced one-half second apart — sounds  
when weather alert is turned On and NOAA sends a 1050 Hz  
weather alert tone on the selected weather channel. Press  
any button to turn it Off.  
Power On-Off – Volume/Squelch  
On-Off  
Transceiver power can be turned On or Off by using the  
On/Off — Volume rotary concentric knob located at the  
upper right-hand side of the radio.  
On/Off Power/  
Volume Knob  
Volume  
Volume is controlled by turning the On/Off Volume rotary  
concentric knob. The radio speaker is located on the left side  
of the display.  
To increase the volume, turn the Rotary knob clockwise.  
To decrease the volume, turn the Rotary knob  
counterclockwise.  
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Getting Started  
Operating Your Radio  
Squelch  
Squelch Knob  
Squelch control is controlled by turning the inner (back)  
rotary concentric knob located directly behind the On/Off –  
Volume knob. With the power On, turn the knob  
counterclockwise till you hear a hissing sound, then turn the  
knob clockwise till the hissing stops. This will establish a  
“Baseline” squelch.  
By turning the knob further in a clockwise direction, you will  
filter weak and medium-strength signals. By turning the  
knob further in a counterclockwise direction 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.  
Channel Select Knob  
Channel Select Using Radio Knob  
SELECT  
Allows for the manual selection of all the VHF marine  
channels that have been established for use in the U.S.A.,  
Internationally and in Canada.  
MEM  
NOTE  
This knob will also allow scrolling in many of the  
setup and advanced operation menus.  
When the Channel Select knob on the radio is turned in a  
clockwise rotation, higher numbered VHF marine channels  
can be accessed. When the Channel Select knob on the  
radio is turned in a counterclockwise direction, lower  
numbered VHF marine channels can be accessed.  
Channel Select Using Microphone  
By pressing microphone Channel Up button, higher  
numbered VHF marine channels can be accessed. By  
pressing the microphone Channel Down button, lower  
numbered VHF marine channels can be accessed.  
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Getting Started  
Operating Your Radio  
Local Mode Button  
Local Mode Button  
The radio features a Local Mode button that decreases radio  
sensitivity when operating inside populated areas.  
When the Local Mode button is On, the power of an  
inbound receive (Rx) signal is reduced without distorting  
the waveform. Reducing an inbound signal power  
prevents “noise interference” from random RF Noise in  
populated marinas, cities and commercial areas. When  
the Local Mode button is On, the “Local On” icon  
displays.  
When the Local Mode button is Off, the radio receives a  
Channel Preset Buttons  
full signal with an extended operational range.  
Channel Preset (Function) Buttons  
Use the Channel Preset buttons for direct access to favorite  
channels in the Standby mode and as selection keys in the  
Setup mode.  
When a Channel Preset button is pressed and released,  
the radio goes directly to the assigned preset channel. If  
no preset channels are assigned, three (3) error tones  
sound. After the button is released, the radio returns to  
the Standby mode.  
When a Channel Preset button is pressed and held for  
more than two (2) seconds, the working channel will be  
assigned to the button.  
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Getting Started  
Introduction  
Standby and Receive  
Standby mode is the usual mode for the radio whenever it is  
turned On.  
Standby Mode  
From Standby Mode, You Can:  
Change your radio’s settings using setup routines.  
Receive messages on the current channel as well as DSC  
messages.  
Receive NOAA alerts if Weather Alert mode is turned On.  
Switch to Transmit mode using the Talk button.  
While the radio is in Standby mode, the Receive mode is  
entered whenever a strong enough signal to break squelch  
is sent to the radio. You will hear the message through  
Channel Select Knob  
whichever speakers are connected to the radio.  
SELECT  
To Change the Channel You Are Listening to, You Can  
Choose One of the Following:  
1. Turn the Channel Select knob clockwise for higher VHF  
channel. Turn the Channel Select knob counterclockwise  
MEM  
for lower VHF channel.  
2. Press Channel Up/Down buttons on microphone to go to  
Mic Channel Buttons  
the next higher or lower VHF channel. For rapid advance,  
press and hold the Channel Up/Down button.  
3. Press the Channel 16/9 button. This will take you to  
Channel 16 with one (1) press and to Channel 9 with a  
second press. Additional presses will toggle between  
Channel 16/9 Button  
Channels 16, 9 and original channel.  
4. Press the Weather/Enter button. This will allow you  
access to the weather channels. Turning the Channel  
Select knob or pressing the Channel button on the  
microphone allows you to change weather channels.  
WX/Enter Button  
5. Press the Tri-Watch button to monitor three (3) Channels  
16, 9 and one user selectable channel.  
Tri-Watch Button  
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Setup Mode Programming  
Introduction  
Setup Mode Programming  
Setup Menu  
Use the Setup menu in the CobraMarine VHF radio to turn On  
and Off many features, to adjust feature preferences and enter  
a user MMSI number.  
Call/Setup Button  
NOTE  
Basic Setup menu programming is described in this  
section. For Setup menu programming that applies to  
a specific function refer to that section in this manual.  
Setup Menu  
For example, MMSI information is in the DSC portion  
of the manual.  
Basic Scrolling in the Setup Menus:  
The Channel Select knob on the radio can be used to scroll  
through different menus and confirm selections chosen by the  
Channel Knob  
user. Alternately, scrolling selection functions can be made  
SELECT  
from the microphone by using the Channel Up/Down or  
Function (F1/F2) button.  
MEM  
To Enter the Setup Menu:  
Press and hold the Call/Setup button. The Setup menu  
Mic Channel Buttons  
appears on the LCD. Scroll up or down through the Setup  
menu until the desired function to program is positioned to  
the right of the selection arrow.  
To Exit any Setup Menu:  
Mic Function Buttons  
Scroll down to “EXIT” at the bottom of the menu. With the  
arrow pointing toward “EXIT,” press the Enter button to return  
the radio to the Standby mode.  
Exit  
NOTE  
The ESC button on the radio (and the Function F1/F2  
button on the microphone) can also be used  
universally to return to the Standby mode.  
Enter Button  
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Setup Mode Programming  
Operating Your Radio  
Lamp Adjustment  
LCD Display Lamp Adjust  
The LCD display has a backlight lamp to make it visible in  
the dark. The lamp can be adjusted for brightness or turned  
off. Make all lamp adjustments in the LAMP ADJ menu.  
The lamp will operate at the HIGH level until adjusted to  
HIGH, MEDIUM, LOW, NIGHT or OFF.  
To Adjust the LCD Display Lamp Level:  
High/Medium/Low/Exit  
1. Enter the Setup menu and scroll to the LAMP ADJ menu.  
2. Press the Enter button and observe the current backlight  
lamp setting — HIGH, MEDIUM, LOW, NIGHT or EXIT.  
3. Move the selection arrow to the required setting.  
4. Press the Enter button to select the backlight lamp  
setting.  
5. When the changes are complete, exit the LAMP ADJ  
menu and return to the Setup menu.  
When the backlight is turned On, the lamp remains lit  
anytime the radio is On.  
LCD Contrast  
Adjust the LCD display contrast for easy reading in different  
lighting. Make all contrast adjustments in the CONTRAST menu.  
To Change the Contrast:  
Contrast  
1. Enter the Setup menu and scroll to the CONTRAST menu.  
2. Press the Enter button and observe the current contrast  
setting — a number between 1 and 16.  
3. Turn the Channel knob to increase or decrease the  
contrast setting.  
Contrast Setting  
NOTE  
Contrast is lighter at lower number settings and  
darker at higher number settings.  
4. Press the Enter button to select the contrast setting.  
5. When the changes are complete, exit the CONTRAST  
menu and return to the Setup menu.  
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Setup Mode Programming  
Operating Your Radio  
Key Tone  
The confirmation key tone sounds when the CobraMarine  
VHF radio is turned On and confirms all button presses  
except for the Talk button. The confirmation key tone is  
easily turned On or Off. Make all confirmation key tone  
adjustments in the KEY TONE menu.  
To Turn the Confirmation Key Tone On or Off:  
1. Enter the Setup menu and scroll to the KEY TONE menu.  
2. Press the Enter button and observe the current  
Key Tone  
confirmation key tone setting — High, Medium, Low or  
Off.  
3. Select your desired level.  
4. Press the Enter button to select the key tone setting.  
5. When the changes are complete, exit the KEY TONE menu  
On/Off  
and return to the Setup menu.  
Time Offset  
All VHF, DSC, and GPS activities use a 24-hour clock and  
Coordinated Universal Time (UTC) formerly known as  
Greenwich Mean Time (GMT). Time Offset uses a connected  
Time Offset  
GPS to gather time inputs. To convert time inputs to local  
time, enter the hour offset of the local time zone from the  
Time Zone Chart on page 25.  
To Change the Time Offset:  
1. Enter the Setup menu and scroll to TIMEOFST menu.  
2. Press the Enter button and observe the current time  
Set Time  
offset setting.  
3. Move the selection arrow to the setting for your local  
time zone.  
4. Press the Enter button to select the local time zone  
setting.  
5. When the changes are complete, exit the TIMEOFST  
menu and return to the Setup menu.  
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Setup Mode Programming  
Operating Your Radio  
NOTE  
When the time offset is at zero (0), the LCD shows the  
time as UTC. When a time zone hour offset is entered,  
the LCD shows the local time. All DSC messages are  
based on UTC.  
The radio will also show the local time as the  
adjustment is being made.  
UIC Channel Map  
U.S.A./International/Canada (UIC) Channel Maps  
There are three (3) sets of VHF Channel Maps 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  
UIC Select  
three (3) maps, but there are differences (see tables on  
pages 16-23). The radio is built with all three (3) channel  
maps included and operates correctly in any selected area.  
To Set the Radio for the Area Used:  
1. Enter the Setup menu and scroll to the UIC menu.  
2. Press the Enter button and observe the current channel  
map setting.  
3. Move the selection arrow to select the desired channel.  
4. Press the Enter button to select the channel map setting.  
5. When the changes are complete, exit the UIC menu and  
return to the Setup menu.  
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8187-F80-Operation-8_MMB:F75-Operation-8 12/29/06 9:03 AM Page 45  
Special Features  
Operating Your Radio  
Special Features  
Rewind-Say-Again™ Feature  
The MR F80 radio has a Cobra exclusive playback feature,  
Rewind-Say-Again™. This feature allows you to replay the  
last 20 seconds of an incoming audio transmission. It also  
allows you to record call details including position  
coordinates, call signs, registration numbers and store details  
that will help authorities locate a distressed vessel.  
Example 1:  
Rewind-Say-Again™  
When engine noise, music or conversation creates too much  
noise to hear an inbound message clearly, press the Rewind-  
Say-Again™ button to hear the message a second time. This  
feature eliminates asking the sender to repeat the message.  
Example 2:  
When listening to an urgent distress of an excited caller with  
confusing background noise, press the Rewind-Say-Again™  
button to hear the message a second time and get lifesaving  
information.  
Operation of Rewind-Say-Again™  
Rewind Button  
1. Press the Rewind button after the last inbound audio  
transmission.  
2. The radio automatically replays the last 20 seconds of the  
previous audio transmission.  
3. Respond to the caller normally, after the message is  
replayed.  
Setup and Advanced Operation of Rewind-Say-Again™  
Rewind Menu  
Change the Record Setting  
1. Enter the Setup menu and scroll to the REWIND menu.  
You can also enter the REWIND mode by pressing and  
holding the REWIND button.  
2. Press the Enter button and observe the current rewind  
setting — ON or OFF.  
Rewind On/Off/Record  
3. Select your choice: ON or OFF and press Enter. Choose  
ON if you want the MRF80 to record received  
transmissions. Choose OFF if you want to turn off the  
recording feature.  
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Special Features  
Operating Your Radio  
PTT Menu  
Make Your Own Recording  
The recording feature may also be used to store other  
important information like fuel consumption, water  
conditions, fishing notes (such as thermal cline depths, type  
of bait, etc.) and other “On Water” observations.  
1. Follow the steps above to get into REWIND mode setup.  
Recording Stored Menu  
2. Select the RECORD function. Press ENTER to start the  
recording mode.  
3. Press the Push to Talk (PTT) button on the microphone  
to begin your recording. A 20-second countdown  
displays showing how much time remains for recording.  
At the end of 20 seconds, a beep sounds indicating that  
the recording time is completed.  
4. Playback recorded message or select OFF to exit this mode  
and keep the recording in memory.  
NOTE  
The REWIND feature can also be used to permanently  
store an incoming message. This could be useful if  
you are not able to copy information while underway  
such as coordinates, directions and other  
complicated information. Once the incoming  
transmission (up to 20 seconds) is complete, Follow  
the instructions to turn the REWIND feature off. The  
last incoming transmission will be recorded to the  
unit’s memory.  
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PVoroicdeuTcrtaFnesamtuisression  
OperatingYour Radio  
Voice Transmission  
Use the Transmit (TX) mode to communicate with safety  
services, other vessels and shore stations. When using this  
capability, follow appropriate procedures and observe the  
expected courtesies.  
Before pressing the Talk button to transmit a message, select  
the appropriate channel and transmit power output.  
Channels  
Voice messages may be transmitted on most VHF channels.  
Refer to the VHF marine channel assignments on pages 14-23  
to select a channel based on the type of message being  
transmitted.  
Choose One of the Following Options to Change the  
Channel:  
Channel Knob  
Turn the Channel knob or press the microphone Channel  
SELECT  
Up/Down buttons. This moves the channel to the next  
higher or lower VHF channel. (When on Channel 88A, the  
next higher channel is Channel 1 and vice versa.) For  
MEM  
rapid advance, press and hold the microphone Channel  
Up/Down buttons. (The confirmation key tone sounds for  
each button press, but not during rapid advance.)  
Microphone  
Up/Down Buttons  
Press the Channel 16/9 button on the radio or the  
microphone. This selects Channel 16 with one press and  
Channel 9 with a second press. Additional presses will  
toggle between Channel 16 and Channel 9. Press and  
Channel 16/9 Button  
hold the Channel 16/9 button to return to Standby mode.  
NOTE  
The radio will automatically select high power on  
channel 16 if you use the Channel 16/9 button to  
select this channel. Select 16 manually or save it as  
Microphone 16/9 Button  
a preset if you would like to routinely use channel  
16 on low power mode.  
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Voice Transmission  
Operating Your Radio  
Transmit Power Output  
The radio transmits selectively at 1 or 25 watts of power.  
Cobra suggests maintaining the low power setting for short-  
range communications to avoid overpowering nearby stations  
with the signal. Use the high power setting for long-range  
communications or when no response is received from a  
signal sent at 1 watt.  
To Toggle Between the High and Low Power Modes:  
HI/LO Power Button  
Press the HI/LO Power button.  
The LCD displays which mode is selected.  
Some channels are restricted to be used at a maximum of 1  
watt. The radio automatically sets the power to Low Power  
Standby Low Power Mode  
mode when a restricted channel is selected.  
While using the U.S.A. channel map, if, in an emergency, it is  
necessary to increase the output power on Channel 13 and  
Channel 67 for the signal to be heard, override the Low  
Power mode by pressing and holding the HI/LO Power  
button.  
Standby High Power Mode  
Transmit a Message  
To Transmit a Message:  
1. Check to see that the radio is set to a proper channel for  
the type of message being sent.  
Transmit Low Power Mode  
2. Toggle to the low power setting by pressing the HI/LO  
Power button.  
3. With the microphone about 2 in. (51 mm) from your  
mouth, press and hold the Talk button and speak into the  
microphone. TX (Transmit) displays on the LCD display.  
4. Release the Talk button when finished speaking. To hear  
Transmit High Power Mode  
a response, the Talk button must be released.  
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PVoroicdeuTcrtaFnesamtuisression  
OperatingYour Radio  
NOTE  
If the Talk button is held down for five (5) minutes,  
the radio automatically ceases transmitting to prevent  
unwanted signal generation and a three (3)-beep error  
tone sounds. As soon as the Talk button is released, it  
can be pressed again to resume transmission.  
Public Address  
Use the Public Address (PA) mode of voice transmission to  
communicate to other nearby vessels or people. This feature  
requires a mounted and connected optional PA speaker.  
To Broadcast on the PA Speaker:  
1. Press the PA/ESC button on the front of the transceiver.  
2. Press the Talk button on the microphone and speak into  
PA/ESC Button  
the microphone.  
NOTE  
While in the PA mode:  
When the Talk button is pressed; the output is  
Talk Button  
directed to the PA speaker and not transmitted as a  
radio signal through the antenna.  
Received radio messages are directed to the PA  
speaker unless the Talk button is pressed.  
3. To turn off PA, press PA/ESC button on the front of the  
radio again or press the Function F1/F2 button on the  
microphone to ESC.  
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8187-F80-Operation-8_MMB:F75-Operation-8 12/29/06 9:03 AM Page 50  
NOAA All Hazards/Weather  
Radio and Alert, w/SAME  
Operating Your Radio  
NOAA All Hazards/Weather Radio and Alert, w/SAME  
NOAA broadcasts weather information as described in the  
NOAA Weather Channels section on page 25 of this manual.  
Listen to one of these receive-only channels at any time. The  
transceiver also incorporates “Specific Area Message  
Encoding (SAME)” and “Emergency Alert System Codes” sent  
by NOAA. These codes provide the type of alert, and are listed  
on page 51.  
NOTE  
Usually only one (1) or two (2) of the weather  
channels operate in a location. Select the channel  
with the strongest signal in your location. The radio  
WX/Enter Button  
scans this channel for the weather alert signal.  
To Listen to the Weather Channels:  
1. From Standby mode, press the WX/ENTER button. The  
unit enters the Weather mode and displays on the LCD.  
Weather Mode  
2. Turn the Channel knob or press the Channel Up/Down  
buttons on the microphone to change the weather  
channels.  
3. To exit the Weather mode and return to Standby mode,  
press the WX/ENTER button again.  
Weather Alert Setup  
The Weather Alert mode must be turned On to receive the  
Weather Alert condition signal described in the NOAA weather  
WX/SAME Menus  
channels section on page 25.  
To Turn Weather Alert On:  
1. Enter the Setup menu and scroll to WX/SAME (weather  
alert) menu.  
2. Press the Enter button and observe the current weather  
alert setting — ON, OFF or EXIT.  
3. Move the selection arrow to select the desired weather  
alert setting.  
4. Press the Enter button to select the weather alert setting.  
5. When the changes are complete, exit the WX/SAME menu  
and return to the Setup menu.  
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NOAA All Hazards/Weather  
Radio and Alert, w/SAME  
Introduction  
SAME Alert  
NOTE  
The  
symbol will appear on the top of the display  
when the weather alert is turned On.  
Specific Area Message Encoding (SAME)  
The SAME weather alert allows listeners and EAS  
(Emergency Alert System) participants to filter the National  
Weather Radio (NWR) broadcast of warnings and emergency  
alerts to receive only messages and information for your  
selected local geographic area.  
The Weather Alert must be turned On for the SAME alert  
code to be set. The SAME alert requires that a specific six (6)  
digit code be programmed into this radio. To program this  
SAME receiver with the proper county(s) and marine areas(s)  
of choice, you need to know the 6 digit SAME code  
number(s) for the county(s). This setting allows up to 10  
available codes that may be set up in any order. Any of the  
codes may be turned On or Off for specific weather area  
information to be listed.  
NOTE  
You can obtain online information at  
by telephone at 1-888-NWR-SAME (1-888-697-7263)  
to program the SAME alert into this radio.  
General SAME Information:  
WX/SAME Menus  
County codes:  
Marine coverage:  
To Set the SAME Weather Alert:  
1. Enter the Setup menu and scroll to the WX/SAME  
(weather alert) menu.  
2. Press the Enter button and observe the current weather  
alert setting – ON, OFF or EXIT.  
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NOAA All Hazards/Weather  
PRraoddioucatnFdeAatlueret,sw/SAME  
OperatingYour Radio  
3. Turn the Channel knob to select alert ON.  
4. Depress the Enter button and select YES to set the  
same alert.  
NOTE  
The Weather channels may be turned Off, while  
the SAME area code alerts are On or any combination  
of On or Off.  
5. Turn the Channel knob to select EDIT. Press Enter  
button.  
SAME Codes and Edit List  
6. Turn the Channel knob or press the Function (F1, F2)  
buttons on the radio to select the SAME alert code  
number (1-10) you wish to program.  
7. Press the Enter button to start entering the SAME code  
number. First number entry location will start to blink.  
8. Turn the Channel knob or press the Channel Up/Down  
buttons on the microphone to enter the six (6) digit  
SAME code number you want to enter.  
9. Use the Function (F1, F2) buttons on the radio to move  
to the next or previous number. Repeat steps 7 and 8  
until all six digits have been entered.  
10. Press the Enter button to complete the code entry.  
11. Move the selection arrow to NEXT to set another SAME  
alert channel. If desired. Ten total codes can be  
programmed.  
12. When the changes are complete, exit the WX/SAME  
menu and return to the Setup menu.  
SAME Event Code Alert  
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PArdovdaunccteFdeOatpuerreastion  
OperatingYour Radio  
Advanced Operation  
There are several features in the CobraMarine MR F80 VHF  
radio that provide quick access to the voice calling channels  
and allow monitoring more than one (1) channel at a time.  
Channel 16/9  
This function provides quick access to calling Channel 16 or  
Channel 9 from any operational mode.  
To Switch to Channel 16 or Channel 9:  
Channel 16/9 Button  
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 key again to go back to the  
original working channel.  
Microphone 16/9 Button  
When on Channel 16 or Channel 9 in the Channel 16/9 mode,  
turn the Channel Knob, press the Channel Up/Down button  
on the microphone or press the Function (F1/F2) button to  
change to other channels.  
Channel 16/9 Toggle  
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PArdovdaunccteFdeOatpuerreastion  
OperatingYour Radio  
Tri-Watch  
Tri-Watch Button  
Use Tri-Watch one-button access to scan the three (3)  
channels of most importance. Channel 16 is always included  
as scanned locations. The remaining locations can be set  
using the following procedure.  
NOTE  
The radio must be squelched for the Tri-Watch to  
function. See page 38 for the Squelch procedure.To  
Set Tri-Watch Channels:  
Tri-Watch Mode  
1. In Standby mode, turn the Channel knob or press the  
Channel Up/Down buttons on the microphone to select a  
2nd or 3rd scanning channel location.  
2. Press the Tri-Watch button to set a new Tri-Watch  
channel.  
The Tri-watch screen will display on the LCD and the radio  
will scan amongst Channel 16 and the other two Tri-Watch  
locations you’ve selected. A signal on any one (1) of the  
three (3) channels stops the scan and transmits traffic on  
that channel. The channel number it is paused on displays  
on the LCD.  
During Tri-Watch When Receiving an Incoming  
Transmission:  
1. Press the Talk button to remain on that Tri-Watch  
location and return to Standby mode.  
2. Turn the Channel knob or press the Channel Up/Down  
buttons on the microphone to resume scanning Tri-  
Watch locations.  
If no button is pressed, the radio automatically resumes  
scanning Tri-Watch locations when an incoming  
transmission is completed.  
During Tri-Watch When Not Receiving an Incoming  
Transmission:  
Press the Talk button to communicate on the last Tri-Watch  
location scanned and to return to the Standby mode.  
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Advanced Operation  
Operating Your Radio  
Memory Channels  
Program or select an unlimited number of channels for the  
Memory Scan mode.  
To Program Memory Channels:  
1. From Standby mode, select a channel to record using the  
Channel Up/Down buttons.  
2. Press and hold the Memory Scan/Memory Clear button  
Memory Scan/  
Clear Button  
for three (3) seconds. The channel is recorded for  
scanning and MEM (memory channel) appears on the  
LCD when that channel is selected.  
3. Press the Memory Scan/Memory Clear button to begin  
scanning.  
The radio returns to Standby mode when the Memory  
Scan/Memory Clear button is pressed again.  
4. Repeat steps 1 through 2 to record additional channels.  
Memory Channel  
Memory Channel  
To Clear Memory Channels:  
Repeat the steps above in the “To Program Memory  
Channels” section, this time holding the Memory  
Scan/Memory Clear button down for three (3) seconds to  
clear the memory from the selected channel. Repeat as  
necessary to clear additional channels.  
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PArdovdaunccteFdeOatpuerreastion  
OperatingYour Radio  
Scanning  
Scanning of Memory Channels  
During Memory Scan mode, the radio rapidly switches from  
one recorded channel to another. When any activity is  
detected, the radio stops the scan for 10 seconds for brief  
listening on that channel. The scan continues until the radio  
is switched out of the Memory Scan mode.  
NOTE  
If there are fewer than two (2) channels recorded, the  
Memory Scan mode is not available. (For instructions  
on recording at least two channels, see Memory  
Channels, page 55.)  
NOTE  
The radio must be squelched for the Memory Scan  
mode to function. See page 38 for Squelch  
procedure.  
To Enter Memory Scan:  
Memory Scan/  
Clear Button  
From Standby mode, press the Memory Scan button.  
The radio immediately begins to scan the channels selected  
and MEM SCAN (memory scan) shows on the LCD.  
To Exit Memory Scan:  
From Memory Scan mode, press the Memory Scan button.  
The radio returns to Standby mode on the last scanned  
Memory Channel  
memory location.  
During Memory Scan When Receiving an Incoming  
Transmission:  
1. Press the Memory Scan button to remain on that  
memory location and end scanning. The radio returns to  
Standby mode.  
2. Press the Channel Up/Down microphone channel buttons  
or turn the Channel knob to resume scanning.  
If no button is pressed within 10 seconds, the radio  
automatically resumes scanning.  
During Memory Scan When Not Receiving an Incoming  
Transmission:  
Press the Talk button to communicate on the last active  
channel scanned and return to Standby mode.  
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PArdovdaunccteFdeOatpuerreastion  
OperatingYour Radio  
Operation from the Microphone  
Function  
(F1/F2)  
Button  
DSC and  
Call/Setup  
Enter Button  
Push to  
Talk  
(PTT)  
Button  
Microphone  
Down  
Button  
Up  
Button  
Instant  
Channel  
16/9 Button  
Use the microphone to select operation modes and accomplish approximately 90%  
of all radio functions. Microphone features include:  
Instant Channel 16/9 button is used to access emergency channels.  
Channel Up/Down button is used to change channels.  
Push to Talk (PTT) button is used to send or record a radio message.  
Function (F1/F2) button is used to toggle between preset channels and/or, when  
in a menu, it acts as an Escape key.  
Call/Setup and Enter button is used to enter the routine Digital Selective Calling  
(DSC) menu and enter the setup menu for both advanced and basic setup  
functions.  
NOTE  
The microphone and the transceiver radio meet the JIS7 waterproof  
standards.  
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Digital Select Calling (DSC)  
PSreotudpuct Features  
OperatingYour Radio  
Digital Select Calling (DSC) Setup  
Digital Selective Calling (DSC) uses digital signals to increase messaging range. This  
provides the most reliable message delivery per watt of output power. Digital signals  
are less susceptible to distortion from noise and atmospheric conditions than analog  
signals.  
DSC equipped radios also interface with GPS and automate many operations for  
sending and receiving messages. This results in compact, accurate messages and  
less airwave congestion.  
Setup procedures for all DSC features use the Setup menu. Refer to page 40 for  
information on entering and exiting the Setup menu.  
User MMSI Number  
The nine (9) digit MMSI number, similar to a telephone number, is a unique identifier  
for a vessel. DSC incorporates this number into every message that is Sent (Tx) or  
Received (Rx). Enter the MMSI number as soon as you receive your MMSI number  
from the issuing agency listed on page 9.  
NOTE  
The radio does not operate in the DSC mode until an official MMSI number is  
entered. An error tone will sound when attempting to operate in the DSC  
mode without an MMSI number.  
To Enter an MMSI Number:  
NOTICE  
Only one MMSI number change is allowed on this unit. To prevent constant  
changes and potential errors, this MMSI number limitation is on all DSC  
capable radios. If the MMSI number must be changed more than once, return  
the radio to Cobra Electronics for resetting. Once the radio is reset, another  
MMSI number may be entered and the radio can then be used in the DSC  
mode.  
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Digital Select Calling (DSC)  
PSreotudpuct Features  
OperatingYour Radio  
1. Enter the Setup menu and scroll to USERMMSI menu.  
USERMMSI Menu  
2. Press the Enter button. A blinking cursor displays at the  
first digit under USERMMSI ID ENTRY.  
3. Rotate the Channel knob to scroll through the number list  
to the digit of the MMSI number being entered.  
4. Press the F1 and F2 Function buttons to select the digit.  
The blinking cursor moves to the next digit of the number.  
USERMMSI ID Entry  
5. Repeat steps 3 and 4 until all nine (9) digits of the MMSI  
number are entered.  
NOTE  
Press the F1 Function button to backspace and the  
F2 Function button to space forward. A new entry  
MMSI Final Change  
does not automatically erase previous entries.  
6. Check that the number is entered correctly.  
7. Press the Enter button to return to the Setup menu.  
If an MMSI Number is entered incorrectly, repeat steps 1  
through 7 until correct. Remember, you only have one  
MMSI Entry Error Message  
attempt to reset the MMSI number or the radio must be  
returned to Cobra Electronics for reset. See Product Service  
on page 79 for details on how to return your radio.  
Transferring a Radio to a Different Vessel  
Contact the agency that issued the MMSI number to change  
the vessel information associated with your MMSI number.  
To View the Programmed MMSI Number at Any Time:  
1. Enter the Setup menu and scroll to USERMMSI.  
USERMMSI Menu  
2. Press the Enter button and the MMSI number will appear.  
3. Press the Enter button to return to the Setup menu.  
USERMMSI ID Entry  
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Digital Select Calling (DSC)  
PSreotudpuct Features  
OperatingYour Radio  
DSC Scanning  
Turn DSC Scanning Off to stop the radio from scanning  
Channel 70. DSC message transmissions continue but no  
DSC alarms sound. No DSC messages are received unless a  
distress message is transmitted. Distress message  
acknowledgements are received with DSC scanning On or  
Off.  
To Turn DSC Scanning On or Off:  
DSC SCAN Menu  
1. Enter the Setup menu and scroll to DSC SCAN menu.  
2. Press the Enter button and observe the current setting —  
ON or OFF.  
3. Select a setting by turning the Channel knob.  
4. Press the Enter button to confirm selected item and  
return to the Setup menu.  
DSC SCAN On/Off  
Group MMSI Number  
Nautical organizations like yacht clubs and regatta event  
organizers can establish Group MMSI numbers. Messages  
can then be automatically transmitted to all members of a  
group without making individual calls.  
The Group MMSI is established by modifying the MMSI  
assigned to one (1) group member. To modify the MMSI  
number, drop the last digit of the number and insert a zero  
(0) at the beginning.  
Example:  
Member MMSI number 366123456 becomes Group MMSI  
number 036612345.  
Group MMSI numbers may be entered and changed any  
time without resetting the radio. Each member of a group  
must enter the group MMSI number in their radio to receive  
group messages.  
NOTE  
ALL digits must be entered for the display to show  
complete.  
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Digital Select Calling (DSC)  
PSreotudpuct Features  
OperatingYour Radio  
GRP MMSI Menu  
To Enter a Group MMSI Number:  
1. Enter the Setup menu and scroll to GRP MMSI menu.  
2. Press the Enter button. A blinking cursor displays at the  
first digit under GRP MMSI ID ENTRY. The leading zero  
(0) will be entered automatically.  
3. Turn the Channel knob or press microphone Channel  
Up/Down buttons to scroll through the number list to the  
GRP MMSI ID Entry  
digit of the Group MMSI number being entered.  
4. Press the Enter button to select the digit.  
5. Press the Channel Preset buttons to move within the  
field.  
6. Repeat steps 3, 4 and 5 until all nine (9) digits of the  
Group MMSI number are entered.  
7. Press the Enter button when all digits are listed.  
8. Check that the number is entered correctly.  
9. Press the Enter button to return to the Setup menu.  
Position Request Reply Type  
DSC radios with GPS send the position of a vessel to  
another station. This is useful for rendezvous and rescue  
situations.  
Determine if the radio should automatically respond to all  
Position Requests received or if it should provide a Position  
Request alert and that can be manually selected and then  
provide a response.  
POS RPLY Menu  
To Set the Position Request Reply Type:  
1. Enter the Setup menu and scroll to POS RPLY menu.  
2. Press the Enter button and observe the current setting —  
AUTO or MANUAL.  
3. Move the selection arrow to change the setting.  
4. Press the Enter button to select the setting.  
Position Reply Setting  
5. When the changes are complete, exit the POS RPLY  
menu and return to the Setup menu.  
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Digital Select Calling (DSC)  
PSreotudpuct Features  
OperatingYour Radio  
Individual Directory  
INDV DIR Menu  
DSC can be used to call another vessel or station directly.  
This allows the user to make a call to a specific vessel that  
could be monitoring any channel. An alarm will sound on  
the receiving radio to make that station aware of your  
individual call. Up to 20 names and associated MMSI  
numbers may be stored in the radio for quick access.  
Name Select Menu  
To Enter or Edit Names or MMSI Numbers in the Individual  
Directory:  
1. Enter the Setup menu and scroll to INDV DIR menu.  
2. Press Enter to enter the individual directory.  
3. Name and MMSI contents of the current location shows  
Individual Directory Entry  
on the display  
4. Press Enter to start entering Name data.  
5. Rotate the Select button or the microphone up/down  
buttons to select alpha or numeric characters.  
6. Press F1 or F2 Function buttons to advance to the next  
character.  
7. Repeat steps 5 and 6 until the complete Name entry has  
been made.  
8. Press the Enter button to enter characters in the MMSI  
field.  
9. Repeat steps 5 and 6 until the complete MMSI entry has  
been made.  
10. Press the Enter button to accept the entry.  
11. When the changes are complete, exit the INDV DIR  
menu and return to the Setup menu.  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
Digital Select Calling (DSC) Operation  
The Send menu displays when the Distress button is  
pressed.  
NOTE  
This radio follows Class-D DSC protocol with a  
dedicated Channel 70 receiver.  
Sending Distress Calls  
Sending and receiving distress calls and acknowledgements  
on Channel 70 can be a lifesaver for mariners.  
NOTE  
The DSC call:  
Sounds the distress alarm at all receiving stations.  
Informs receiving stations of the sender’s identity  
(MMSI).  
Informs receiving stations of the nature of the  
emergency.  
Informs receiving stations of sending position  
when a GPS device is connected or a position is  
manually entered.  
DSC operation does not provide receiving stations with  
information like number of persons aboard or injuries. This  
specific information must be communicated by voice on  
Channel 16 to the station that acknowledges a DSC Distress  
call.  
To Send a DSC Distress Call:  
1. From Standby mode, lift the spring-loaded red door on  
the transceiver and press the Distress button. The  
Distress menu displays with an arrow pointing to SEND.  
Distress Button  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
Distress Button  
There are three (3) choices:  
Send a distress call automatically, with your position, if  
you are connected to a GPS. Or send the call, without  
your position, if not connected to a GPS.  
Include a Nature of Distress message with the distress  
call.  
Auto Distress Send  
Abort the distress call process and return to Standby  
mode.  
2. Choose one of the following:  
Send an Automatic Distress Call:  
Press and hold the Distress button.  
Include a Nature of Distress Message with Distress Call:  
a. Press and release the Distress button.  
b. Turn the Channel knob or press the microphone  
Channel Up/Down buttons to manually select from the  
list of pre-programmed Nature of Distress calls —  
UNDEFINE, FIRE, FLOODING, GROUNDIN, COLLISIO,  
Distress Quick Select  
MORE.  
c. Press and hold the Distress button for three (3)  
seconds to transmit the distress signal.  
Abort the Distress Call Process:  
If the Distress button is pressed by mistake or to  
discontinue resending an automatic distress message:  
a. Turn the Channel knob or press the microphone  
Distress Call Waiting  
Channel Up/Down buttons to move the arrow to EXIT.  
b. Press the Distress button to return to Standby mode.  
NOTE  
You may also press the ESC (escape) button to return  
to the Standby mode.  
Distress Exit  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
The Distress alarm sounds to confirm that the message is  
transmitted. At the end of the transmission, the radio  
maintains a watch on Channel 16 and Channel 70 for an  
acknowledgement. Press any button to turn Off the alarm  
and return to Standby mode.  
If an acknowledgement is received, the Distress alarm  
sounds again and the responding party’s MMSI number  
displays on the LCD.  
If no acknowledgement is received, the radio resends  
the message at approximately four (4) minute intervals  
until an acknowledgement is received or the Distress  
call is aborted.  
Receiving Distress Calls  
When a vessel is within range of a DSC Distress call, the  
radio receives the call, sounds the Distress alarm, and  
switches to Channel 16. All DSC calls that are received will  
Distress Call MMSI  
sound one (1) alert alarm. See pages 36-37 for descriptions  
of the different alarms. Press any button to turn Off the alarm.  
The received call information continues to display on the LCD.  
When a Distress Call is Received:  
1. Press any button to turn Off the alarm and return to  
Standby mode on Channel 16.  
2. Read and write down the distress information that  
displays on the LCD (position data may or may not be  
shown); then determine whether to answer the call.  
3. Respond, if appropriate, by pressing and holding the Talk  
button to transmit on Channel 16.  
4. The received information is placed into the Call Log. See  
page 75 for more information on viewing the Call Log.  
5. If MMSI (Maritime Mobile Service Identify) matches a  
contact from the Individual Directory entry stored in your  
radio, the name identification displays and the alarm  
sounds to identify the Name of the matching MMSI  
member.  
6. Press ESC after viewing the display to return to normal  
Standby mode.  
NOTE  
The radio automatically switches to Channel 16 upon  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
receiving a DSC Distress call and the alarm will sound  
for approximately two (2) minutes. Press any button  
to clear the Distress alarm instantly.  
Regarding Distress Relay Calls  
This radio cannot send Distress Relay calls. Only large ships  
and shore stations, with specially equipped radios, can send  
Distress Relay calls.  
Receiving Distress Relay Calls  
This radio does respond to a Distress Relay call just as it  
responds to a Distress call.  
Sending an All Ships Call  
Use the DSC All Ships call for the same urgency and safety  
purposes as the Pan and Securite voice calls as well as  
sending Routine messages to all stations at once. The DSC  
All Ships call reaches all stations in radio range. Use the  
DSC All Ships call for urgent, but not life-threatening  
All Ships Call Menu  
situations or to broadcast a safety warning to all vessels in  
the area. Use the DSC All Ships call judiciously for Routine  
calls.  
To Send an All Ships Call:  
1. In Standby mode, select a channel to communicate a  
routine call. The radio uses Channel 16 for urgent and  
All Ships Call Select  
safety calls.  
2. Press the Call/Setup button to enter the Call Setup  
menu.  
3. Scroll to All Ships.  
4. Press Enter button for All Ships Call Select.  
5. Scroll to type of call. The display shows: URGENCY,  
SAFETY, ROUTINE or EXIT. Select the type of call.  
All Ships Call Send  
6. Press the Enter button twice to send a message.  
NOTE  
The radio display requires confirmation before  
sending Urgency and Safety calls.  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
5. Depending on the type of message selected, the radio  
automatically switches to a voice channel.  
a. After Urgency and Safety calls, the radio switches to  
Channel 16. Once on channel, press the Talk button to  
send the Urgency or Safety voice message.  
b. After a Routine call, the radio switches to the channel  
selected in step 1. Once on channel, press the Talk  
button to send the Routine voice message.  
DSC equipped radios that receive a DSC All Ships call  
message are automatically switched to the channel selected  
by the sender to hear a voice message.  
To return to Standby mode, without sending a message,  
scroll to EXIT and press the Enter button.  
All Ships Call MMSI  
Directory Match  
Receiving an All Ships Call  
All Ships calls received from stations within range of the  
radio sound the Distress alarm and switch the radio to  
Channel 16.  
When an All Ships Call is Heard:  
1. Press any button to turn Off the alarm and return to  
Standby mode.  
2. Read and write down the MMSI information of the vessel  
sending the call as well as the date and time of the call.  
3. Listen to the incoming voice message on the channel the  
radio selects for the incoming All Ships call.  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
Sending a Geographical Call  
This radio does not send Geographical calls. Only large  
ships and shore stations with specially equipped radios send  
Geographical calls.  
Receiving a Geographical Call  
Geographical calls are transmitted by specially equipped  
radios to all stations in a particular area to alert only those  
stations of the call and not stations in unaffected  
geographical areas. When in an area to which a  
Geographical call is made, the radio sounds the  
geographical alarm and switches to the channel chosen by  
the transmitting station.  
When a Geographical Call Sounds:  
Geographical Call Received  
1. Press any button to turn Off the alarm.  
2. Read and write down the MMSI information of the vessel  
sending the call as well as the date and time of the call.  
3. Listen to the incoming voice message on the channel the  
radio selects for the incoming Geographical call.  
4. Place call information in Call Log.  
5. Press one (1) of the following buttons to switch from the  
Geographical call received to the Standby mode: Channel  
16/9 button or ESC button.  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
INDV DIR Menu  
Sending an Individual Call  
Use the DSC Individual call feature to request  
communication with one (1) exclusive station. The DSC  
Individual call does not alert all other stations within range.  
To Send an Individual Call:  
1. In Standby mode, select a channel to communicate a call.  
Individual Directory  
2. Press the Call/Setup button to enter the Call Setup  
menu.  
3. Press the Enter button to enter to the INDIV select  
Directory.  
4. Scroll to Select from Routine, Urgency or Safety as the  
type of call to send.  
Call Type  
5. Press Enter button to advance to Directory or Manual  
selection. Scroll to select either method to send call.  
Press Enter button again.  
6. Turn the Channel knob or press the Channel Preset  
buttons to select a name to call from the directory.  
Menu Select  
7. Press the Enter button to send the message or return to  
Standby mode if EXIT was chosen.  
If the radio called sends back an automatic DSC  
response “able to comply,” the individual alarm will  
sound. Wait for a voice message from the called  
Select Name  
station.  
If the radio called does not send an “able to comply”  
response, the radio waits eight seconds and resends  
the message.  
Individual Waiting  
If an “unable to comply” response or no reply is  
received, the radio display asks to resend the message  
or exit the menu.  
At the Unavailable menu, select SEND or EXIT with the  
Enter button.  
Send/Exit  
If SEND is selected, the radio restarts the individual call.  
If EXIT is selected, the individual location on the Call  
menu displays.  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
Receiving an Individual Call  
Caller Identified  
When another station makes an Individual call to the radio:  
The Individual alarm sounds.  
The caller is identified on the LCD.  
The radio switches to the channel selected by the caller.  
Call information is placed in the Call Log.  
To Receive an Individual Call:  
Press the Talk button and greet the caller.  
Sending a Group Call  
Sending a Group call is like sending an Individual call, but  
the group MMSI information is used and the resend and  
DSC responses do not apply. See pg. 61 for creating and  
entering a group MMSI.  
To Send a Group Call:  
Group Calling  
1. In Standby mode, press the Call/Setup button to enter  
the Group call menu.  
2. Turn the Channel knob or press the microphone channel  
UP/DOWN buttons to scroll to Group.  
3. Press the Enter button to move to the channel select  
menu.  
Send/Exit  
4. Turn the Channel knob or press the microphone channel  
UP/DOWN buttons to select a channel to communicate  
the call.  
5. Press the Enter button to send the message.  
All radios switch to the channel selected in step 1.  
Press and hold the Talk button to send a voice message  
to everyone in the group.  
Anyone in the group can transmit on the channel.  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
Caller Identified  
Receiving a Group Call  
When another station makes a Group call to the radio, the  
Individual alarm sounds, the caller is identified on the LCD,  
call information is placed in the Call Log, and the radio is  
switched to the channel selected by the caller, similar to an  
Individual call. Press any button to turn Off the alarm.  
To Receive a Group Call:  
1. Listen for the group voice message.  
2. Press the Talk button and respond only if appropriate.  
Sending a Position Request  
Position Request mode enables a DSC radio to obtain the  
position (latitude and longitude) of a station that has a GPS  
Standby Mode  
device connected to the DSC radio at that station. In most  
cases, a reply will be forthcoming. If for some reason, your  
request is not acknowledged in five (5) minutes, the user  
will be prompted to Resend the request or exit the menu.  
To Request the Position of Another Station:  
1. In Standby mode, select a channel on which you want to  
POS RQST Menu  
communicate.  
2. Press the Enter button to enter the Call Setup menu.  
3. Scroll to POS RQST on the menu.  
4. Press the Enter button to enter the POS RQST menu. This  
will link you to the Individual Directory for you to make a  
Individual Directory  
position request to one of your prior programmed  
Individual Directory members.  
5. Scroll to the name of the station whose position you want  
to request.  
Position Request  
6. Press the Enter button.  
Your radio will send the Position Request and there will be  
one (1) of three (3) possible responses:  
You will receive the position.  
You will receive a no position data response, meaning  
the station you queried is not connected to a GPS  
device and cannot send its position.  
You will receive a no reply response, meaning the  
operator of that station has chosen not to reply to your  
request.  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
Receiving a Position  
If You Receive a Position:  
The requested position with the station name and MMSI will  
show on your screen.  
Press the Enter button to return to Standby mode after you  
have noted the station’s position.  
NOTE  
If the MRF80 is connected properly to your Cobra  
chartplotter, you will see the requested position of the  
other vessel indicated on the display.  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
Receiving a Position Request  
When you went through the DSC Setup process, you set a  
position request reply type. (See page 63 to change your  
setting.) Depending on the setting you chose, when a  
Position Request message is received, your radio will enter  
either:  
The Auto Reply mode.  
The Manual Reply mode.  
When the Radio is in Auto Reply Mode:  
A position request will sound the Position Request alarm  
Position Request  
and show the name of the requesting station on the LCD.  
Your radio will automatically respond. It will send your  
position, if you have a GPS device connected to your radio,  
or NO POS. DATA (no position data), if you do not have a  
GPS device connected.  
Press any button to silence the alarm and exit the display.  
When the Radio is in the Manual Reply Mode:  
A position request message will sound the Position Request  
alarm and show the name of the requesting station. You can  
choose to:  
Reply and send your position.  
Exit without sending your position.  
If You Choose to Reply with Your Position:  
1. Turn the Channel knob, or press the microphone Channel  
Reply/Exit  
Up/Down buttons or press the Function (F1/F2) button to  
select REPLY.  
2. Press the Call/Setup or Enter button to send your  
position.  
3. Press any button to return to Standby mode.  
If You Choose Not to Reply:  
1. Turn the Channel knob, or press the microphone Channel  
Up/Down buttons or press the Function (F1/F2) button to  
select EXIT.  
2. Press the Enter button to exit and return to Standby  
mode without sending your position.  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
Sending a Position Send  
Standby Mode  
Position Send uses your connected GPS in similar fashion  
to the Position Request function, except that you initiate the  
activity to let another station know where you are.  
To Send a Position Send Message:  
1. In Standby mode, select a channel on which you want to  
communicate.  
Position Send  
2. Press the Enter button to enter the Call Setup menu.  
3. Turn the Channel knob, or press the microphone Channel  
Up/Down buttons or press the Function (F1/F2) button to  
scroll to POS SEND (position send).  
Individual Directory  
4. Press the Enter button to enter the Individual Directory.  
5. Turn the Channel knob, or press the microphone Channel  
Up/Down buttons or press the Function (F1/F2) button to  
select the vessel/station to which you want to send your  
position.  
Transmit Position  
6. Press the Enter button to send your position.  
After your position is sent, the LCD will show POS SEND  
(position send). You will have two (2) choices.  
Resend your position to the same station.  
Exit from Position Send mode.  
Send/Exit  
To Resend Your Position:  
1. Turn the Channel knob, or press the microphone Channel  
Up/Down buttons or press the Function (F1/F2) button to  
select SEND.  
2. Press the Enter button to resend your position.  
To Exit From the Position Send Mode:  
1. Turn the Channel knob, or press the microphone Channel  
Up/Down buttons or press the Function (F1/F2) button to  
select EXIT.  
2. Press the Enter button to return to the Call Setup menu.  
Receiving a Position Send  
Receive Position Send  
When another station sends you its position in Position Send  
mode, the Individual alarm will sound and the station’s name  
and position will be shown on the LCD. Press any button to  
turn Off the alarm and return to Standby mode.  
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Digital Select Calling (DSC)  
POrpoedruactitoFneatures  
OperatingYour Radio  
Call Log Menu  
Call Log and Distress Log  
Call Waiting functions similarly to the Caller ID function on  
your telephone. It will capture the caller’s MMSI  
identification number and any other data included in a DSC  
message.  
NOTE  
All Messages Viewed  
Each Call Log memory can hold up to 10 messages.  
Once the memory becomes full, each new call will erase  
the oldest call information on a first-in, first-out basis.  
To Review Log Messages Received While in DSC Standby  
Mode:  
Unread Messages  
1. From Standby mode, press the Call button to enter the  
Call menu.  
2. Turn the Channel knob, or press the microphone Channel  
Up/Down buttons to scroll to CALL LOG or DIST LOG  
menu.  
3. Press the Enter button to enter either LOG menu.  
4. Turn the Channel knob, or press the microphone Channel  
Up/Down buttons to move from message to message in  
the Call Log memory.  
5. Press the ESC button to return to the Call Menu.  
To Clear Messages From The Log Memory:  
1. Follow steps 1-3 above to enter the desired LOG.  
2. Turn the Channel knob, or press the microphone Channel  
Up/Down buttons to select the message you want to  
delete.  
3. Press the F2 button under the screen to delete the  
selected message.  
Repeat steps 4 through 5 to delete additional messages.  
4. Press the Enter button to return to the Call Menu.  
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Maintenance and  
Troubleshooting  
Operating Your Radio  
Maintenance  
Very little maintenance is required to keep your CobraMarine VHF radio in good  
operating condition.  
Keep the radio clean by wiping with a soft cloth and mild detergent.  
Rinse with fresh water. 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, rinse it in fresh water at least once  
a day to prevent buildup of salt deposits, which could interfere with  
button operation.  
Troubleshooting  
Problem  
Possible Cause(s)  
Solution(s)  
No display on LCD when  
radio is turned On  
Improper power  
connection  
Ensure power connections  
are proper and secure  
Will transmit at  
1 watt, but not  
at 25 watts  
Selected channel is  
limited to 1 watt  
Switch to  
another channel  
Will not transmit  
Selected channel is  
limited to receive only  
Switch to  
another channel  
No sound from speaker  
No answer to calls  
Volume level is too low or Readjust volume  
squelch level is too deep  
and squelch  
Out of range of  
other station  
Switch to high power  
(25 watts) or move closer  
Signal is blocked  
by terrain  
Move until you have  
a “line-of-sight” to  
the other station  
DSC distress  
cannot be sent  
MMSI  
(DSC self-identification)  
number is not entered  
Enter your MMSI number  
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Specifications  
Operating Your Radio  
Specifications  
General  
Number of Channels  
All U.S.A., Canadian, and International  
NOAA Weather Channels  
Channel Spacing  
Modulation  
25 kHz  
5 kHz Max.  
13.8 VDC  
Input Voltage  
Current Drain:  
Stand-by  
Receive  
100 mA  
500 mA  
5A @ High power 1A @ Low  
Transmit  
Temperature Range  
Unit Dimensions  
-4˚F to 140˚F (-20˚C to 60˚C)  
6.375" x 3" x 6.25"  
(162 mm x 76 mm x 159 mm)  
Unit Weight  
2 lbs., 6.8 oz. (1100 g)  
Receiver  
Frequency Range  
Receiver Type  
156.050 to 163.275 MHz  
Double Conversion Super-Heterodyne  
Sensitivity:  
20 dB Quieting  
12 dB Sinad  
0.35 uV  
0.20 uV  
Adjacent Channel Selectivity  
Intermodulation and Rejection  
Spurious and Image Rejection  
AF Output  
-60 dB  
-60 dB  
-60 dB  
4 Watts @ 8 Ohms  
Transmitter  
Frequency Range: TX  
RF Output Power  
156.025 to 157.425 MHz  
1 and 25 Watts  
-60 dB High -55 dB Low  
Electret  
Spurious Emissions  
Microphone Type  
Frequency Stability  
FM Hum and Noise  
+/-10 ppm  
40 dB  
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PWraordraunctyFaenadtuTrreasdemark  
OperatingYour Radio  
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 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™, CobraMarine™ and Rewind-Say-Again™ are  
trademarks of Cobra Electronics Corporation, USA.  
English  
78  
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Product FSearvtuicres  
OperatingYour Radio  
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 copy 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.  
If you have any questions, please call 773-889-3087 for assistance.  
®
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