Axiom 3d sonar

Hello. First time member and purchaser of the axiom 9rv. I am a Lake Erie fisherman and trying to learn as much as I can before my unit arrives.

I have a few questions:

What do the colors mean on the 3d sonar? Is it targets in the port, starboard or directly under the boat?

If needing a high speed transducer such as my older humminbird si for reading on plane, how would I accomplish this?


Thank you for any help

Shane