side imaging fishfinder

[Kent]

for Mega 360 to work I think you need a Helix that is G3N/G4n  you should be able to use in on your boat are ice fishing I love it for sturgeon
Humminbird Mega 360 Imaging Ultrex
https://www.hodgesmarine.com/hum411580-1...mount.html
https://www.hodgesmarine.com/hum411390-1...acket.html
https://www.hodgesmarine.com/hum411250-1...trade.html
https://www.hodgesmarine.com/hum740198-1...apter.html

https://www.humminbird.com/learn/imaging...60-imaging

go down to To covert your MEGA 360 Imaging transducer for use on ice, you will need:

They sure are proud (AKA expensive) of their transducer.  I already have $1,458 invested in the unit so far, but mighty tempting to get one of those transducers and use it anchored up, while sturgeon fishing, and through the ice.