Glossary
AIS
Universal Shipborne Automatic Identification
System. A system of transponders installed on vessels
which send continuously updated navigation
information. An AIS receiver is used to monitor these
transmissions and the AIS
WathMate
is used to
display this information and trigger alarms when there
is a risk of collision.
BRG /
Bearing
The location of another vessel typically expressed as
true or magnetic degrees. May also be expressed as
relative degrees from your vessel's heading.
Class A/B
There are two classes of AIS transponders. Class A
are used on vessels which have mandatory
requirements to carry AIS transponders. Class B are
used on vessels for which AIS transponders are
optional.
COG
Course over ground. The course a vessel is making
which is not necessarily the same as the vessel's
heading.
CPA
Closest point of approach. The nearest distance in
nautical miles two vessels will come to one another if
they both maintain their current course and speed.
Filter
A set of criteria used to determine if a target should
be included in the target list, such as its range or
speed.
GPS
Global Positioning System. Used to provide your
vessel's current position, course, and speed.
IMO
International Maritime Organization. A unique IMO
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Содержание WatchMate 650
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