Furuno CH-250 manual Selecting a Display, Horizontal Expanded Horizontal

1.6Selecting a Display

This sonar has eight display modes and you may select one with one of the DISPLAY MODE keys. Refer to the chapter shown in the illustration for more information about each mode.

Key	Picture	Key	Picture
	NAV		NAV
	DATA		DATA
	HORIZONTAL		EXPANDED HORIZONTAL
	This mode provides 360 degree coverage.		Zoomed horizontal picture appears over
	Useful for general search. (Chapter 2)		the entire screen. (Chapter 2)

NAV	NAV
DATA	DATA
	or
	A-SCOPE
	DISPLAY
	Water temp/depth

	VERTICAL FAN	ECHO SOUNDER
Vertical section of underwater conditions		Using a fixed spot beam this display
appears on the entire screen. (Chapter 3)		shows fish echoes below or around the
		vessel. (Chapter 4)

NAV DATA NAV DATA

	HORIZONTAL/HISTORY	HORIZONTAL/VIDEO PLOTTER
The horizontal picture appears in the main		The horizontal picture appears in the main
window; the history picture in the sub		window and the video plotter picture, which
window. Useful for showing history of fish		traces ship's track, in the sub window.
movement, distribution. (Chapter 2)		(Chapter 2)

NAV DATA	NAV DATA
HORIZONTAL/VERTICAL FAN	HORIZONTAL/STRATA
The horizontal picture appears in the main	The horizontal picture appears in the main
window; the vertical fan picture in the sub	window; the strata picture in the sub window.
window. (Chapter 3)	The strata picture shows bottom undulatons
	in different colors. It is useful in bottom
	trawling to avoid projections. (Chapter 2)

Figure 1-4

Display modes

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