Axiom not marking fish

[JimBognr]

Thanks Chuck. I am aware of the benefits of the downscan vs high chirp. I don't have realvision, just downscan and high chirp. I am looking for fish with the high chirp sonar view. My experience has been with third party fishfinders in the past and I am excited to explore the added features of the Axiom. How should I expect the fish to be displayed. Will they be arches, fish symbols or something else? I have revisited the area where the unit went crazy last week and did not experience the same problem. However, I experience bottom loss at random times at random depths. I am experimenting with transducer placement and angles. So far, it's been frustrating.