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RayChart 620 and 630
SeaTalk The Raytheon standard for data communications.
Soft key A key without a printed label, whose function depends on
the context in which it is used. The current function is
indicated by a label on the screen immediately above the
soft key.
Time out The automatic clearing of a message or the soft key labels
after, for example, 7 seconds.
True Motion The mode in which the chart remains fixed and the vessel
moves across the display. This is the normal display mode.
Variation The difference in degrees between “True North” and
“Magnetic North”.
Waypoint Any location that has been stored in memory with Lat/
Long or TD as the coordinates, which is to be used as a
destination or a turning point on the route to the
destination.
Window A boxed area inset on the main screen, containing
information.
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