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bluto
Member
Joined: Mar 04, 2009
Posts: 15
Location: Boness Scotland
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 Posted:
Mon May 11, 2009 10:38 pm |
 
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Hi every one, does anyone know if fishfinders can detect flatties , ie flounder, place, sole etc?  |
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rabbi2
Global Moderator
Joined: Sep 05, 2007
Posts: 9234
Location: Blackburn. Lancashire
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Tue May 12, 2009 5:42 am |
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In my opinion and from experience the answer is no unlees the fish is actually moving.
Fishfinders work by emitting a signal and the picking up the return signal as it bounces off the fish.
Flatties by lying close to the bottom the return signal is lost in the big sicnal that emits from the bottom of the sea bed,
Submarines used this during the last war to try to avoid detection and lay on the bottom for hours before moving off.
Cheers
keith  |
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jacko69
Tackle Forums Mod
Joined: Nov 27, 2008
Posts: 789
Location: Scarborough
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Tue May 12, 2009 7:18 am |
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As Keith says the answer is not if they are laying in the sand but they do give a good reading on what the bottom is like
Dave |
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bluto
Member
Joined: Mar 04, 2009
Posts: 15
Location: Boness Scotland
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Tue May 12, 2009 8:56 am |
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Hi there Keith and Dave, thanks for the reply , I'll bear these points in mind .  |
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tomcat
Regular
Joined: Oct 24, 2008
Posts: 358
Location: Ribble Valley, Lancashire.
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Tue May 12, 2009 3:08 pm |
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Sorry Bluto but the physics of the requirements, make your wish an imposibility. Even the modern colour fishfinders which present differing density of objects with a different colour would find the presentation impossible. A VERY high definition set might have 640 vertical pixels. In just 60 feet of water each pixel represents more than an inch of depth. The physics make the presentation of flatfish just a wish I'm afraid. |
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