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Old 26 February 2009, 14:44   #11
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side imaging sonar

I,m up for a demo but would have to be in northwest
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Old 28 May 2009, 06:47   #12
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Sounds like Lowrance are bringing out a side image module for their new HDS system. I was expecting this sometime but havent heard or seen too much detail. Anyone know anything about it or have any screenshots

I've had to join a US fishing forum to get some details!
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Old 28 May 2009, 13:07   #13
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Found some, from a Catfish forum.
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Old 29 May 2009, 09:54   #14
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So the black line down the middle isn't been scanned?
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Old 29 May 2009, 10:10   #15
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Chewy,

In the image that has no black lines the white line down the middle is the fore & aft axis of the boat, either side of this is the depth of water then the view of the bottom.

The images with the black lines dividing it into 4 are the borders of the display screens used in the multi media presentation presumably at some conference?

It does look very similar to Humminbirds stuff, forum chat in the US has conjectured this may be due to Lowrance simply paying patent royalty to Humminbird and using their principle or is just convergent evolution of a separate Lowrance system. Either way an add on black box module would be useful and easy way to get SI will await developments unless we have a fora member privvy to Navico secrets...
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Old 29 May 2009, 11:12   #16
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Is this right?
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Old 01 June 2009, 03:51   #17
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This may make it a little clearer, also white = good return of signal, dark = shdow or no return. If an object straddled your course/path it would appear in both sides of the image say a wreck lying at 90 degrees to course/path, you would see it in two parts.
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Old 01 June 2009, 04:35   #18
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Ah I see now.
Anyone fancy explaining in idiots terms how it gets such a good image?
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Old 01 June 2009, 08:50   #19
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Chewy,

Starfish web page

Advantage of the Lowrance-Humminbird system is that there is no towed array or towfish. It is done from what appears to a conventially shaped transducer. Not sure what's in it though.

HTH
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Old 02 June 2009, 13:07   #20
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Hi,

I Really look forward to see what Lowrance comes up with. Roumers says that they should scan down to 60-70m with nice results.

I have the Humminbird 1197 and in the Baltic Sea, where its not so salt and therefore penetrates a bit better, I get nice results down to 47-50m.

I know a lot of people with towfish sonars, they get really good images of well know wrecks, but I find more new wrecks than all them together, as my sonar is always in the water!

Here is a few of my newest scans.

Firs one is S/S Ares, steamer sank in 1906, 68m long, second one is SMS Undine, German light cruiser, sank in 1915.

You can see on the log 1015 nautical miles with the sonar in the water in one year! How many has drawn a towfish that long
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