
Originally Posted by
Perk1964
Yeah you made the same mistake as me. You have to upgrade to the HDSI Transducer to get the really clear pictures. The salesman didn't tell me this info at the time of purchase. I have the Helix 9 SI and swore the unit was bad. With a little research I found out I needed to upgrade the transducer and make a few adjustments in the settings according to the lake you're fishing. Once you open the new unit Humminbird will not give you a full refund or exchange on the transducer. Your best bet is to keep the old transducer in case of emergency.