Furuno MODEL CSH-73 manual Main Setting Description Normal Sub Range

Main		Item		Setting	Description	Normal
Item	Main		Sub	Range		Setting
			SONAR	1–2	Choose "1" for single sonar, or	1
					"2" for dual sonar.
			F-SHIFT	1–2	Shifts Tx frequency. Choose "1"	1
	SONAR				for normal use.
SONR•BEAM			UP/TM	H-up	Heading up presentaion.	Hup
					Sets horizontal beamwidth of Rx
	BEAM		HOR*	0–10	beam. The higher the number,	0
					the narrower the beam.
			VER		Not used.	0
			ON/OFF	ON, OFF	Turns on/off scanning tilt angle	OFF
					(2° steps).
	AUTO
				± 2 – ± 14
	TILT		WIDTH	± 4 – ± 14	Chooses automatic tilt width.	± 2° –± 12°
				± 6 – ± 16	See page 7-1 for details.
AUTO				± 20 – ± 26
			ON/OFF	ON, OFF	Turns on/off scanning EBL,	OFF
					which scans audio sector.
	AUTO
				± 10° , ± 20°	Chooses automatic scanning
	SCAN
			WIDTH	± 40° , ± 60°	width among ± 10° , ± 20° , ± 40°	± 10°
					and ± 60° .
			ON/OFF	ON, OFF	Turns fish alarm on/off.	OFF
					Sets echo level at which fish
					alarm sounds. Numbers 0–15	10
	FISH		LEVEL	0–15	correspond to 16 presentation
	ALARM				colors: 0, deep blue, 15, reddish
					brown.
			ZONE	Press + or	Sets alarm zone, using the
ALM•AUDIO				– key.	trackball and + key.
			SECTOR		Chooses audio sector among	30°
					30° , 60° , 90° , 180° and 330° .
					Chooses length of reverberation
	AUDIO		REVERB	0–9	for audio. Larger number gives	0
					longer reverberation.
			CENTER	Press + or	Sets direction of audio sector,
				– key.	using the trackball and + key.

*HOR and 2AGC functions cannot be used together. If one is used the other is automatically set to “0”.

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