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Old 26 April 2007, 09:17   #11
Andy Moore's Avatar
Country: UK - England
Town: Cowes, Isle of Wight
Boat name: Ditherer
Make: Avon Adventure 620
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Originally Posted by matt h View Post
what it will pick up is floating debris and make out its a fish
Correct. The proper way to use a fishfinder is with 'fish arches' turned on.

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Old 26 April 2007, 13:00   #12
Country: UK - England
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Thanks Matt and for your kind offer, I think I have the unit pretty much set up right having spoken to Garmin and it is more a case of trying it again when I am out at sea.

Will let you know how I get on.


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Old 26 April 2007, 16:46   #13
Country: UK - England
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Originally Posted by Andy Moore View Post
Correct. The proper way to use a fishfinder is with 'fish arches' turned on.
Quite right - you get a very different return from the swim bladder of a fish that you do from general muck and crud that is floating under the transom. This is what gives rise to the arches. I know its always difficult but try trolling round somewhere known to have a high fish density (e.g. round the base of an old pier - just watch out for divers though ). Switching to arches mode should give you a fine set of returns. If it doesn't then let us know your settings and we can all take it from there



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