Cobra Electronics Corporation MRHH125B Manuel D’Utilisation

Page de 30
Intro
Operation
Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution
Warning
Installation
Customer
Assistance
VHF Marine Radio Protocols
Intro
Operation
Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution
Warning
Installation
Customer
Assistance
Intro
Operation
Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution
Warning
Installation
Customer
Assistance
VHF Marine Radio Protocols
29
Nothing 
Comes Close to a Cobra
®
VHF Marine Radio 
Procedures
28 English
VHF Marine Radio 
Procedures
VHF Marine Radio Procedures 
Maintain Your Watch 
Whenever your boat is underway, the radio must be turned On and be tuned to 
Channel 16 except when being used for messages.
Power
Try 1 watt first if the station being called is within a few miles. If there is no answer, 
switch to 3 watts and call again. Remember, the lower wattage output will conserve 
your battery and minimize interference to other users.
Calling Coast Stations 
Call a coast station on its assigned channel. You may use Channel 16 when you do 
not know the assigned channel.
Calling Other Vessels 
Call other vessels on Channel 16 or on Channel 9. (Channel 9 is preferred for 
recreational vessel use.) You may also call on ship-to-ship channels when you  
know that the vessel is listening on a ship-to-ship channel.
Initial Calling on Channel 16 or 9
The use of Channel 16 is permitted for making initial contact (hailing) another 
vessel. The limits on calling must be followed. Be reminded, Channel 16’s most 
important function is for Emergency Messages. If for some reason, Channel 16  
is congested, the use of Channel 9, especially in U.S. waters, may be used as the 
initial contact (hailing) channel for non-emergency communication.
Limits on Calling
You must not call the same station for more than 30 seconds at a time.  
If you do not get a reply, wait at least two (2) minutes before calling again.  
After three (3) calling periods, wait at least 15 minutes before calling again.
Change Channels
After contacting another station on a calling channel, change immediately  
to a channel which is available for the type of message you want to send.
Station Identification
Identify, in English, your station by your FCC call sign, vessel name or 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.
MRHH125+_MANL_ENG.indd   28-29
4/25/14   4:59 PM