fender66 » 18 Jun 2013, 08:17[/url]"]
[url=https://www.tinboats.net/forum/viewtopic.php?p=319120#p319120 said:
Topcat5011 » Yesterday, 13:47[/url]"]I'm sorry guys I went back an read my post and I need to clarify that it's the depth reading that goes crazy at higher speeds. I'm not really worried about bottom readings as I am the depth of the water I'm running in. It works fine under 10mph but after that it jumps to 100ft plus and I know it's not that deep. Ill post some pictures here in a bit and maybe I'm just not getting what's wrong. I've seen the alumaducer and have considered it but would like this one to work if it will.
Been having the same problem with mine (798 HD SI). Just solved it about a month ago, but had to add a "Y" cable and a puck transducer to the inside of the boat (fiberglass boat).
Call Humminbird and talk to customer service. They have been great every time I've ever had a question. You do have to wait in line (on hold) for your turn, but it always pays off for me.
I can and do read depths at full speed now. (57mph)