is the hummingbird matrix 97 a good fish finder gps unit for running rivers and lakes?
I’ve bought a 1990 bayliner 2655 and want a gps unit with depth finder…what is a good recommendation?
Adding GPS to boat will the depth finder interfere with fish finder?
Adding a gps/depth to boat. The boat has a fishfinder on it already. Will the two transducers interfere with each other?


