Not marking any fish Dragonfly 4 Pro

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Scrid,

All Dragonfly displays are packaged with a transducer supporting both CHIRP (conical) and DownVision fishfinder sonar imaging. I personally find it easier to identify fish using the product's CHIRP (conical) fishfinder sonar, as the colors of the CHIRP (conical) make fish stand out more. I principally use DownVision for location and identification of structure, where its monochromatic imaging can be very helpful. If continuing to have the reported problem when configured to display CHIRP (conical) fishfinder sonar and configured for AUTO fishfinder settings, then please indicate the shallowest and deepest depths which you are seeking to fish.