Cone Angle

Similar Terms: Beam Angle,Beam Width

Cone Angle, Beam Angle or Beam Width refer to the angle of the sonar Beam as it is leaves the transducer and is transmitted into the water. The cone angle determines the underwater area covered by your Transducer. A wider/larger cone angle, will provide greater area coverage.

 

Transducer Beam angles or cone angles vary between fish finders and manufacturers. For example, a 200 kHz Transducer may have either a wide (20°) or narrow (12°) cone angle. A 50 kHz Transducer may have a 35° cone angle, whereas dual-frequency or dual search transducers come with both narrow (eg 12°, 200 kHz) and wide (eg 35°, 50 kHz) cone angles.


Generally, a wide cone angle is best for fishing shallow to medium water depths and narrow cones penetrate to deeper waters, but show less Fish and structure due to their narrow Beam.

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