Projected Course; Tracks And Tracking - Simrad NX40 Installation & Operation Manual

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3-4 Projected course

If Projected course is turned on, then the unit will show
the projected position based on the course over ground
(COG), speed and a specified time.
A Projected position
B Boat's projected course
C Boat position

3-5 Tracks and tracking

Tracking records the boat's position to memory at regular
intervals, which can be time or distance intervals.
The track of where the boat has been can be shown on
the chart. The unit can show one track while recording
another.
The unit can store 10 tracks. Each can hold 2000
waypoints.
Tip: Record a reference track and then use the track to
help navigate the same trip later. For example, record a
reference track as you leave harbour. Then if you return
to harbour and visibility is poor, select the chart and
navigate manually along the reference track back into
the harbour. Record reference tracks in good conditions.
When recording is on and the track becomes full then
recording continues and the oldest points in the track are
deleted. The maximum length of a track depends on the
selected track interval: a small interval will give a shorter,
more detailed track and a long interval will give a longer,
less detailed track, as shown in these examples:
Time intervals
Interval Track 1-10
1 sec 33 minutes
10 sec 5.5 hours
1 min 33 hours
Distance intervals
Interval Track 1-10
0.01 20
1 2,000
10 20,000
Simrad NX40/45 Installation and Operation Manual
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