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I am sorry for а long delay :), and would like to share my experience on under ice scanning. I made video how I managed to see fish 40 feet away of my ice hole right under another fishermen tent...

That's OK, although in Hummviewer it showed both sides. Just wonted to show how it works, I will be able to try it on water in three weeks. First I would like to check it in my under ice scaning mode...

I have just gotten my new Helix 5 SI, have not been on water yet. I took my three year old recordings from 385 DI - it plays them, but shows just one right side:
...

Yes, I like my Humm 385ci DI for icefishing and look forward for winter :) :

http://www.crappie.com/crappie/side-down-imaging/256631-somebodys-experimenting-17.html

It is better to spend a...

I would do the same. 999 is 8" only.

Helix 7 SI is almost two times wider than 798 and for $699 only:

Humminbird HELIX 7 SI GPS Fishfinder and Chartplotter | Bass Pro Shops

The same with Lowrance units:

http://i502.photobucket.com/albums/e429/vik310/attachment_zps1h2zzhmr.jpg

I animated my idea for Adjacent Two Sides Down Imaging for SI units.
It was done by smartphone from computer screen,this why the quality is not good but I think the idea looks quite clear:


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The guy said that he tilted the transducer for 45 degree towards the left bank. I do not think that this are rocks, may be just some stones on the...

Yesterday Lowrance Elite-4X HDI video was placed in youtube:


https://www.youtube.com/watch?v=LnUpmg3Y_B0





It works great!

One more Option of DI view on Humm units of 1000….300 series for your review. Instead of using existing overlaid DI view, which is made by overlaying of left and right SI views, I offer modified...

Quite normal pictures for 455kHz and that depth, what about 800kHz? Did you try it, or it does not look good?

Looks like the Option of putting of SI views in horizontal position is very confusing for most of users.
But I am absolutely sure that alive screenshots option could be very helpful.
I think...

Yes, I did it, but nobody is interested in it. I think the most of users do not realize that existing moving SI view is the same as a dead fax machine sheet creeping out of the slot. Normally nobody...

Thank you, I will do it soon.

I would like to offer one more software upgrade for SI units – add new Side Imaging Screen View Option, which I explained in this slide show video (sorry for not very good quality):...

Looks like a ditch, and two pipelines woud look the same way.

Page128 in manual:

http://i502.photobucket.com/albums/e429/vik310/04_zpsb62fcbc1.jpg

Quality of scanning is pretty good, but you did not use the main advantage of HILIX 5 – it’s full screen SI width:

http://i502.photobucket.com/albums/e429/vik310/S00002_zpse184f70c.jpg
...

A few more pictures of the same boat:


http://i502.photobucket.com/albums/e429/vik310/02_zps479539de.jpg

http://i502.photobucket.com/albums/e429/vik310/03_zps7de59e2e.jpg
...

A few new screenshots from today’s ice fishing. I drilled four holes in different places and knew everything what is going on under ice their:
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By the way, if the is no fish under ice just garbage on the bottom it sees that garbage only, but if there are a lot of fish the tackle shows all that fish two and more depths around:
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One more video -this is my very first and short video I did a couples of days ago. It explains why I call it SI mode: because DI mode sees only that small stone on the top, but SI mode sees that...

This is my latest and simplest had driven modification of Ice fishing sonar tackle working in SI mode:

http://i502.photobucket.com/albums/e429/vik310/IMG_1733_zps858bab3a.jpg
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Sonar is a monitor first of all, and we see what we see, I just trust my eyes.
What do you see on that screenshot below?:
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Yes, I agree. I only can say that for the 455khz at 30 ft there would be a blended coverage area of 46ft this is only theoretically correct for 75 degree DI beam, but in reality the beam is much...

One more example: which view is better (sharper) dedicated DI at 800kHz or an old good SI at 455 kHz ?

http://i502.photobucket.com/albums/e429/vik310/321_zps32896ca5.jpg

Dedicated DI is a...

One more example - on SI views of LSS unit we defenetly see a long foumdation casting some shadow, but on dedicated DI we see a blend of the left and right parts of central beam and something...

Sorry, I missed your question, I mean inclined DI transducer, ussualy for 25-35 degree. I do it for ice fishing use as well:
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Yes, exactly, and also brighter spots of one side cover darker spots of other side in both cases, and istead of shadows and details we see just a bright bottom.