Humminbird 917C Installation And Operation Manual page 113

Sonar-only Views, Not Navigating: On Sonar-only views, as long as you are
not navigating, all 5 readouts are customizable.
Other Views, Not Navigating: On any view with a chart, as long as you are
not navigating, two of the readouts are not customizable: the 2nd box
always displays Heading, while the 5th box always displays Speed. On the
Bird's Eye View, when you are not navigating, there are four fixed info boxes
that show Depth, Heading, Position (Lat/Lon) and Speed. When you are
navigating in the Bird's Eye View, there are two columns of four boxes. The
first column shows Depth, Time To Go (TTG), Position (Lat/Lon), and Speed.
The second column shows Cross Track Error (XTE), Heading, Bearing, and
Distance To Go (DTG).
Default Sonar View
All Views, Navigating: When you are navigating, all readouts in all views
(even split screen views with a Sonar display) cannot be customized, with
the exception of the top readout info box, which is still customizable. In any
view, while you are navigating, the second readout box shows Heading, the
third box shows Bearing, the fourth box is divided to show Cross Track Error
(XTE) and Distance To Go (DTG), and the fifth box is divided to show Time To
Go (TTG) and Speed.
Customized Sonar View
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