Reson SeaBat 7125 SV2, Operator'S Manual

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ACTIVE SONAR USAGE
SeaBat 7125 SV2 Operator‟s Manual
Page 98 July 25, 2011
Version 3
6.2.5.2 Horizontal Steering
This setting allows the operator to steer the swath independently of the sonar head
physical angle. The extent of steering is determined by the angle selected. The limitation
is that the outer beam cannot be steered past 5° from the horizontal (see
Figure 31 ).
When the swath is steered this way, the individual beam widths increase with the
steering angle. A beam steered at 60° is twice the width of a beam steered at 0°.
60°
90°
85°
5°
25°
120° swath
Max steering 25°
With a swath of 120° the maximum steering angle is ±25° ((85°-(swath/2)).
30°
90°
85°
5°
55°
60° swath
Max steering 55°
With a swath of 60° the maximum steering angle is ±55° (85°-(swath/2)).
Figure 31: Horizontal Swath Steering