Furuno CSH-23F/24F Sonar, Up/Tm, Sonrbeam, Hor, Beam, Ver, Auto ON/OFF ON, OFF, Tilt Width, Alarm

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.
					Selects presentation mode
			UP/TM		among North-up (Nup), Heading	Hup
					up (Hup), True Motion (TM).
SONR•BEAM
					Sets horizontal beamwidth of Rx
			HOR*	0–10	beam. The higher the number,	0
					the narrower the beam.
	BEAM				Sets vertical beamwidth of
					transmission beam. "0" is normal
			VER	0–4	setting. "1" and "2" for wide	0
					beam; "3" to reduce surface
					clutter; "4" to suppress false
					bottom echoes.
	AUTO		ON/OFF	ON, OFF	Turns on/off scanning tilt angle.	OFF
					WIDE: ± 2-10° , ± 4-16° , ± 6-20°
	TILT		WIDTH			± 2° –± 10°
					NARROW: ± 1-4° , ± 2-6° , ± 3-8°
AUTO			ON/OFF	ON, OFF	Turns on/off scanning EBL,	OFF
					which scans audio sector.
	AUTO
					Chooses automatic scanning
	SCAN
			WIDTH		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 +/-	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 +/-	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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