Furuno CSH-23F/24F manual System Menu Description, Far Tvg, Tm Dsp

SYSTEM Menu Description

The SYSTEM menu can be displayed by pressing MENU and

ctogether.

For help, press the HELP key.

Menu	Item	Description
SIGNAL	Smooth Echo Rng	Selects echo smoothing level in range
PROCESS		direction. The higher the number, the higher
		the smoothing effect. The setting range is from
		0 to 3.
	Smooth Echo Cir	Selects echo smoothing level in circular
		direction. The higher the number, the higher
		the smoothing effect. The setting range is 0 to
		3.
	Delete Color	You can delete undesired echoes and noise in
		certain colors from the display. This is useful
		for eliminating noise and detecting large fish
		schools. The setting range is 0 to 10. If you
		want to delete echoes displayed in colors
		weaker than the 5th weakest color, for
		example, set to 4.
FAR TVG	Far TVG Curve	Selects suitable FAR TVG curve to
		compensate for propagation loss of sound at
		100 m or farther. 30log is the normal setting.
		25log: Suitable for searching small bottom
		fish in shallow water or near coastline.
		30log: Standard setting
		35log: Select for long distance searching in
		low sounding frequency.
		40log: Use this setting when long range gain
		higher than 35log is required.
TM DSP	TM Display Range	Selects a display range in the true motion
		display, from 1.3R and 1.6R.
		Note: To enable KP synchronization, open sub
		panel 2, choose TVG/TX and TRANSMIT and
		then set CYCLE to "0".
TARGET LOCK	Tracking Method	This option determines what item to track in
		target lock; target lock mark or fish echo.
	Track Echo Color	Select the weakest color to track in the target
		lock function.
	Fish Speed Limit	Sets limit speed (kt) for tracking of fish. When
		speed of fish exceeds limit set here target lock
		is cancelled.
	Fish Track Window	Selects range (1 to 10m) out of tracking
		window. When fish tracks out of this window
		the equipment judges the target is moving and
		traces its track. 10 is the normal setting.

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