Thread: Down Imaging Advice

I would certainly suggest you try to find someone who has one and take a look at it. Just my opinion but dedicated DI on HB is far superior to the computer generated DI on the SI units. Now since you already have a very good DI unit you are happy with I would look at one of these rather than spend the money on a new unit. And Rickie is a sponsor on here and is usually on the electronics board.
da 'ducer apparatus - Podunk (po dungk) A small isolated town, region, or place that is regarded as unimportant. . . .

I wanted to give you the same answer as Cray this morning just after you posted, but you asked a specific question that I can't answer. My suggestion was going to be the same link to Rickie, because you are happy with the DI you have, so why buy new if there is nothing wrong with the Lowrance? Get one of Rickie's mounts for now.

Originally Posted by cray

dedicated DI on HB is far superior to the computer generated DI on the SI units.[/url]

I was not aware that DI was different or less quality if viewing on an SI unit as compared to a DI only unit! Is this true on the new Helix 10 DI vs. Helix 10 SI ???

Originally Posted by Lonnie84

I was not aware that DI was different or less quality if viewing on an SI unit as compared to a DI only unit! Is this true on the new Helix 10 DI vs. Helix 10 SI ???

I believe this is only in the instances where a unit's transducer does not have a dedicated crystal for the DI signal ... and the newer (HB) units may have them.

... cp

Originally Posted by Lonnie84

I was not aware that DI was different or less quality if viewing on an SI unit as compared to a DI only unit! Is this true on the new Helix 10 DI vs. Helix 10 SI ???

Yes, that is what I was told when I bought my helix 10 si

Originally Posted by nixon

Yes, that is what I was told when I bought my helix 10 si

Well that's not good; I was already trying to decide between a 9" or a 10" now you tell me this!

Okay, I went and did a little research and found the information below at Unofficial Humminbird Side Image Forums www.sideimageforums.com - Index page published by Wayne P. » Sun Jan 31, 2016:

(ALL Side Imaging units except the ONIX and ION use the exact same transducer and they do not have a dedicated DI crystal. The DI view is software blending of the two SI pulses. The ONIX SI unit's transducer has a dedicated Down Imaging crystal like a Down Imaging transducer has. BUT anything displayed in the DI view is "somewhere down there" so you won't know what direction. ONLY SI or 360 can show you where.)

I have only owned SI humminbirds with DI. I always imagined the DI would be really important but have found that SI is far more important and used the vast majority of time over DI. 2d sonar gives so much more info for straigt down views that DI is more of a pretty pretty picture than a usefull tool. DI is fine for comparing with 2d but not all that usefull as a stand alone no matter how good the image.