Chapter 9 - Creating Tracks
Page 9-2
961 Operations and Reference Manual Rev. D
Introducing tracks
What is a track?
As used in 961 operations, the term
track
refers to a sequence
of position measurements that the 961 automatically records
every five seconds—as you travel from point A to point B and
beyond. The
master track
is a continuous record of everywhere
your vessel has travelled during the last 360 hours. You can
select a portion of this master track, then name and store it in
the 961’s database to overlay on the
CHART
screen as needed;
this portion is also known as a track.
Note that the master track isn’t the same as the trip, which is a
record of the specific waypoints, coordinates, and saved points
to which you have navigated.
The 961 saves track data whenever the unit is on and calculat-
ing GPS position, and even when you’re vessel isn’t moving.
When you’re in demo mode, the 961 records your vessel’s true
positions, not the demo positions.
Why use a track?
By displaying one or more of the named tracks on the
CHART
screen, you can graphically see everywhere your vessel has
been during the time represented by that particular track. This
feature lets a fisherman, for example, easily retrace the exact
track of a profitable fishing run. You can store any number of
named tracks to precisely record voyages you may want to
repeat.
Displaying tracks
The 961 displays individual tracks in two different ways. For
the type of display and its corresponding location, see ”Table
7: Displaying tracks” below.
Table 7: Displaying tracks
Display type
Display location
Graphical
on the
CHART
screen, which displays a series
of dots representing the tracks that are marked
for display.
Summary of Contents for 961X
Page 1: ...961 961 GPS Chart Navigator Operations and Reference Manual P N GM1700 Revision D X XD ...
Page 8: ...Page viii 961 Operations and Reference Manual Rev D ...
Page 10: ...Page x 961 Operations and Reference Manual Rev D ...
Page 58: ...Chapter 2 Introducing the 961 Page 2 16 961 Operations and Reference Manual Rev D ...
Page 172: ...Chapter 7 Creating Avoidance Points Page 7 16 961 Operations and Reference Manual Rev D ...
Page 198: ...Chapter 8 Creating Routes Page 8 26 961 Operations and Reference Manual Rev D ...
Page 262: ...Chapter 12 Alarms TideTrack and Currents Page 12 16 961 Operations and Reference Manual Rev D ...
Page 374: ...Index Page I 12 961 Operations and Reference Manual Rev D ...
