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4 suitable tilt angle, Figure 2-9 tilt angle and beam coverage – Furuno CH-250 User Manual

Page 26

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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.

100

(200)

200

(400)

300

(600)

400

(800)

Range (m)

0

°

5

°

10

°

15

°

20(40)

40(80)

60(120)

80(160)

100(200)

200(400)

Vertical width of sonar beam

12

°

21 m

100 m

100 m

300 m

63 m

200 m

Depth (m)

42 m

Tilt angle and beam coverage (frequency 60 kHz, vertical beamwidth 12

°

at

-3 dB

)

Figure 2-9 Tilt angle and beam coverage