2. HORIZONTAL MODE

2.4.5Suitable 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 (vertical beamwidth 18° at -6dB)

100

200

300

(200)

(400)

(600)

20(40)

40(80)

60(120)

80(160)

100(200)

Depth (m)

200(400)

Vertical width of sonar beam

 

300 m

200 m

 

 

 

 

 

100 m

 

 

18°

31 m

62 m

93 m

Range(m)

400

(800)

Tilt 0˚

(0˚-9˚)

Tilt 5˚

(0˚-14˚)

Tilt 15˚

(6˚-24˚)

Grey: Tilt 10˚

(1˚-19˚)

(-6dB)

Tilt angle and beam coverage

2-13

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Image 47
Furuno FSV-84 manual Suitable tilt angle, Tilt angle and beam coverage