I have installed a Hummingbird Helix 8 GPS G4N at the steering station of my Tracker 175. I have installed two card in the unit, a Lakemaster PLUS Southeast v3 and a Coastmaster Premium Florida v1. As I understand it, the Helix is supposed to auto-select the best/highest resolution data source from the internal data and the two cards to display. I have fished the Gulf Coast at Homosassa and Lake George. None of the displays look as detailed as the samples shown in the instruction manuals Both cards are supposed to have aerial overlays among other extra features. What am I not doing correctly?
Second question, because of the stock shortages I could not find a Helix 8 GPS SI+. Can I simply purchase a side imaging transducer when they become available to update to Mega SI or is the head unit different for the DI/SI units?