Appendix E: Glossary - Raymarine Ray218 Owner's Handbook Manual

Appendix E: Glossary

Term
All Scan
All Ships Call
Canadian Channels
CH
COG
Distress Call
DSC
Dual Watch
FCC
Global Positioning
System
GPS
Group Call
Individual Call
International Channels Channel designations as defined by the ITU
ITU
Meaning
A feature that scans all channels in the channel set.
A DSC call that sends out a message to all vessels within range.
The Ray218/Ray55 can make two different types of All Ships
calls: Safety Calls for advisory alerts or Urgency Calls when
assistance is required but there is no imminent danger to the
vessel.
Channel designations as defined by Industry Canada.
Channel selection key
Course Over Ground
A DSC call notifying other ships and shore stations that your
vessel is in imminent danger, sending your position and time
information, along with (optionally) the nature of your distress
situation.
Digital Selective Calling (DSC) is a system used to send digital
messages to stations identified by a unique MMSI number. Con-
tained within the message is the working channel on which
voice communications are to be made. DSC enables you to
make digital Distress Calls and to specify the stations that you
wish to contact: an Individual station, all stations within a spec-
ified Group, or All Ship stations within range.
A feature that monitors the Priority Channel 16 and one other
channel that you choose.
Federal Communications Commission (US)
A navigational system that uses satellite signals to determine
the latitude and longitude of a receiver on Earth.
Global Positioning System
A DSC call that sends transmissions only received by radios
sharing a common Group MMSI number, such as a flotilla or
racing fleet.
A DSC Call made to a specific station identified by its MMSI ID.
International Telecommunications Union (EU)
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