How does a fish finder work? Sonar fish finder operating principles. How to interpret fish finder signal (arches, bars, etc.). Conversion factors for calculating coverage diameter from depth and cone angle.

How does a fish finder work? Sonar fish finder operating principles

How does a fish finder work? Sonar fish finder operating principles. Do we always see fish arches on a fish finder screen when there are fish underneath? Why do we see fish arches on a fish finder screen? When can a fish finder detect fish and show a mark on the screen? How to identify fish on a fish finder when you are moving or not moving relative to the fish?

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