wayne p knows what he is talking about he has helped me out and answered alot questions.Horton if you goto the equpiment thread and spend time reading the posts you learn how get the most outta your graph its all in the settings i have a 788 and 898 like them both...

Horton

Sent PM



keith

What Humminbird units have a dedicated Down Imaging crystal? (if any)

Maybe just the ones without side imaging?

None of the HB's have a dedicated crystal to create DI. They all (HB) uses the SI crystal to create the DI.

Lowrance has a crystal for both DI & SI.




keith

Cooter (Keith Simmons) and I have both owned Lowrance and HB. He switched from HB to L and I switched from L to HB! We fish a lot together in each others boats and believe we have reached the same conclusions.
After switching to an HB 1198 on the console and a 788 on the bow I had an accident in my boat so I went back to my old boat with the L HDS 8 on the console.
I have yet to be able to really dial in the HB to get the images I expect to see based on what my HDS provided. That is why Cooter switched from HB to L. He had a factory guy out on his boat and the factory guy would not produce the same image quality Cooters brother has on his L with boat side by side.
In my case, Matt Carrol and I are both running 1198's and we have a big pile of tires sunk in about 20' of water. I can find the tires with my 1198 but, recently when we were in my old boat we looked at them on the HDS and could not believe the difference. You can see what looks like tires on the HB but, with the Lowrance HDS 8 you can almost read the lettering on the tires! They actually look like tires and you can count every single one.
HB has a lot of neat features and a lot more coming out soon but, I'm not sure that I'd stick with HB if not for the investment already made. The main reason I made the switch is that I don't trust Lowrance from a service standpoint or any kind of help should my HDS fail (which it will at some point).
If I had it to do over I'd probably stick with L.
One other thing. I realize HB has a higher pixel count as someone above mentioned. I guarantee you that pixel count doesn't tell the whole story and I'll compare side by side images to prove it!

Obviously you know nothing about Humminbird products and little about Lowrance products.

Every Humminbird model that has DI in the model name uses a transducer that has a DI crystal and a 2D crystal. There are about a dozen of them.

The Humminibird units with SI in the model name use a transducer that has two Side Imaging crystals and a 2D crystal.
Those units generate a DI image via computer programming.

Lowrance units that have DSI in their model name use a transducer that ONLY has a Down Scan crystal--NO 2D crystal.

The new model Lowrance Elite-7x HDI unit uses a transducer that has a Down Scan crystal and a 2D crystal. That is the first model that company has produced that does Down Scan and 2D sonar.

The HDS units with Structure Scan use two transducers, one has the 2D crystal and the other has two Structure Scan crystals and a Down Scan crystal.

Wayne P. is the man.

Yep! still

I will say those are clearer.

Keith Speers is Da-Man ! ! ! !

I get the same images, just don't bother to do the snap-shot images. Went out today, and threw out 4 Boo Buckets, came back in 2 hours and the images was clear as a bell. Even all the air bubbles were gone. No Fish, but what can a guy do.



keith

I have done some checking into that 581 i Di and some of those sold online do not come with the down imaging transducer. It just comes with the standard transducer. I talked to one of them and told him that he was running a scam and he said yes we are. The ones sold at Bass Pro do come with the right one. I am probably going to get one there for my new back up boat. By the way, I did get the Ranger if you are here Leaning Post.