thru hull transducer?

Joined
Jan 12, 2009
Location
tennesse
#1
since i am new to the board i need some help - i have a 98 gambler intimidator, stepped hull, i've mounted a 797 humminbird side imagining on the console linked with a 777 on the bow the system has two transducers one for si and a shoot thru for running - problem - loose bottom signal when going on plane - there is also a 1240 lowrance in-dash which reacts the same - i've seen a brass thru hull trans. from hummingbird - does anyone have experience with this type or trans. or this hull type. i have contacted hummingbird and now airmar for solutions. any experienced help or advice appreciated. thank you bmc