Furuno CSH-53 manual Permanently Displayed Marks and Data, History display

History display

*Requires external sensor.

Figure 4-4 Marks and data appearing in the history display mode

Permanently Displayed Marks and Data

Mark/Data			Description
Trackball Data		Trackball data:
→		→	: Slant range
→		→ : Horizontal range
↓		↓	: Depth
B	°	B	: Bearing
		Bearing is shown in 360° or ±180° indication system, relative to ship’s
		heading. In the latter case, "B" is indicated as follows:
		B	P .... on the port side
		B	S .... on the starboard side
Range Data		Shows the range scale set with the RANGE control.
R
Tilt Angle Data		The tilt angle appears below the range. The tilt angle can be changed
T	°	in 1° steps within the range of -5°to 60°. In *target lock and automatic
(	)	tilt control, the instantaneous tilt angle appears in parentheses.
		Accordingly, both are equal when target lock is on. In automatic tilt,
		the upper indication shows the tilt angle set by the TILT lever and the
		lower indication the instantaneous tilt angel at which the sonar actually
		works.

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