Furuno CH-250 manual Suitable tilt angle, Tilt angle and beam coverage

2.6.4 Suitable tilt angle

The figure below illustrates the relationship among tilt angle, depth and detection range. Refer to it to find out the suitable tilt angle for a given depth/detection range.

Tilt angle and beam coverage (frequency 60 kHz, vertical beamwidth 12° at -3 dB)

			400	Range (m)
100	200	300		0°
(200)	(400)	(600)	(800)
20(40)				5°
40(80)
60(120)				10°
80(160)
100(200)				15°

Depth (m)

200(400)

Vertical width of sonar beam			300 m
		200 m
	100 m
12°	21 m	42 m	63 m

Figure 2-9 Tilt angle and beam coverage

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