Trolling Grid Rotation; Trackpoint Interval; Track Min Distance (Advanced) - Humminbird 917C Installation And Operation Manual

orientation of the trolling grid in degrees, where a setting of 0° displays a
standard North, South, East, West alignment. See Waypoints for information
on how to set a Grid.
To change the Trolling Grid Rotation setting:
1. Highlight Trolling Grid Rotation on the Navigation main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the
Trolling Grid Rotation setting. (0° to 89°, Default = 0°)
time period between trackpoints. The current track can only contain up to
20,000 trackpoints, so longer time periods cause the track to extend back
further in time, but will be less detailed.
NOTE: Trackpoint Interval works in conjunction with Track Min Distance. Both
conditions must be met before a trackpoint is added to the current track.
To change the Trackpoint Interval setting:
1. Highlight Trackpoint Interval on the Navigation main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the
Trackpoint Interval setting. (1 second, 5 seconds, 10 seconds, 15
seconds, 30 seconds or 60 seconds, Default = 1 second)
NOTE: During slow travel or drift, setting both Trackpoint Interval and Track Min
Distance to small values will allow you to increase the track resolution.

Trolling Grid Rotation

Trolling Grid Rotation allows you to set the

Trackpoint Interval

Trackpoint Interval allows you to select the
Track Min Distance allows you to set a minimum distance of travel before a
trackpoint is added to the track.
NOTE: Track Min Distance works in conjunction with Trackpoint Interval. Both
conditions must be met before a trackpoint is added to the current track.
To change the Track Minimum Distance setting:
1. Make sure you are in Advanced User Mode, then highlight Track
Min Distance on the Navigation main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the
Track Min Distance setting. (1 to 300 feet or 1 to 100 meters
[International Units only], Default = 16 ft, 5 m)
NOTE: During slow travel or drift, setting both Trackpoint Interval and Track Min
Distance to small values will allow you to increase the track resolution.
91
Track Min Distance
(Advanced)