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2. HORIZONTAL MODE
2-9
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
8°
100 m
300 m
42 m
200 m
Depth (m)
28 m
Tilt angle and beam coverage (frequency 180 kHz, vertical beamwidth 8
° at -3 dB
)
14 m
Tilt angle and beam coverage