Vhf Marine Radio Protocols; Vhf Marine Radio Procedures - Cobra Marine MR HH125 Owner's Manual

VHF Marine Radio
Procedures

VHF Marine Radio Protocols

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.
28 English
VHF Marine Radio Protocols
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.
VHF Marine Radio
Procedures
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