Through Hull Fish Finder

[gallowaypt]

Is it true that through hull installation (for kayaks) reduces the capabilities of your down imaging?

[Hi Salenity]

What unit do you have? The DI I have is not a through hull it's a 570

[Wayne P.]

Depending on the material the hull is made of, you could lose some sensitivity doing a shoot-thru installation of the transducer.

 

The Humminibird DI units do very well with that type installation. It is not recommended for Lowrance DSI units though.

[gallowaypt]

I have a 597 humminbird ci down imaging. I went ahead and mounted th finder and transducer on a swiveling arm for fear of losing sensitivity. Thanks guys.

[Hi Salenity]

That's how I mounted mine on my Kayak and it worked great! After Wayne's comment I looked on Humminbirds site and it looks like they are making a through hull DI transducer now. I know at the time I got mine I wanted to use it through hull in my kayak so I called Humminbird ant they told me they didn't offer a through hull ducer and that mine would not work.

[Wayne P.]

The XIH 9 DI T transducer is the same as the transom model XNT 9 DI T but comes with a package of epoxy instead of a transom mount bracket. It can be installed as a SHOOT-THRU, that is the purpose of the epoxy.

 

There never has been a thru-hull DI transducer. A thru-hull installation takes a 1"+ hole in the hull to insert the transducer stem through and use a nut to hold it in place. That installation has the transducer itself on the exterior.

 

I suspect that you did not use the proper terms when talking to Humminbird Customer Service.

You can view all the transducres that Humminbird has on their web site so you don't have to guess what is what, Pay attention to the name and description of them as well as the units they are compatable with.

 

BTW, 570 is not the transducer, that is the unit model number and it has two versions, either the 570 or 570 DI.

[Wayne P.]

I'll add one more thing for those that are not familiar with the sonar technology and what DI means.

 

Traditional sonar is referred to as 2D Sonar.

Down Imaging is NOT traditional 2D sonar. It is a technology that produces somewhat picture-like images.

They are not the same and are not interchangeable when discussing sonar equipment.

 

Humminbird's product name is Down Imaging and the units with that technogy have DI after the model number.

Lowrance's product name for the same technology is Down Scan and they use DSI in their model names.

Lowrance also has dual technology units like Humminbird's DI units and have HDI after the model number.

Other brands have their own different product name for the same technology.

[Hi Salenity]

I bet I did ask for a through hull instead of a shoot through. Thanks again Wayne!