Quote Originally Posted by rnvinc View Post
There is a little history that kinda explains how this technology unfolded like it did...

*HB came out with SI in 2005 (I think)...
*Lowrance came out with SS/DS in Nov 2009...
*HB saw the possible limitations of having the SI piezoes and the DI piezo in the same xducer housing and decided to instead come out with a software update to allow the SI units to show the "DI from SI"...in Jan 2011...
*HB came out with "Dedicated DI" units in late 2011...because they still saw the limitations of having the SI piezoes and the DI piezo in the same xducer housing...

Will HB ever come out with a xducer that has both the SI piezoes and the DI piezo in the same xducer housing....not until science figures out how to overcome the limitation of both technology's piezoes that close together....because they refuse to hinder the HB shallow water SI performance....with an added DI piezo...

Of course all of this is just my opinion...(except the dates are correct)..

Rickie
Good analysis Rickie.....I always thought that the reductions in SI range was more becasuse of the filtering necessary due to crosstalk between the DI and SI components from the tranducers operating at the same frequency.
I saw a post one where an experiment was done on the structure scan transducer by covering the DI portion of the transducer and this resulted in the range on the transducer improving....I am thinking this experiment was done by the guy who developed Dr Depth.....but could be wrong about that. I will see if I can find that old link.

(I found the link, but it no longer works......maybe because DrDepth has been sold)