Most Hummingbird Fish Finders have DualBeam Plus or DualBeam sonar technology, but there are models equipped with QuadraBeam and TriBeam sonars, there are fish finder models that can be equipped with these types of sonars. In this post I'm going to explain how a QuadraBeam and TriBeam sonar works and what are the advantages of these types of sonar. QuadraBeam … [Read more...] about Hummingbird Fish Finders – TriBeam and QuadraBeam Sonars