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Old 01-14-2003, 06:28 AM
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I am looking at fish finders for my new boat. I fish primarily in saltwater from 1 to 5 feet in the bays. I am interested in running offshore on calm days. The near shore wells that I will fish are in less than 50 feet of water. I am interested in a unit that will work well in this situation and will not break the bank.

I am concerned with bait finding ability and I want a unit with depth reading capabilities while running on plane.

Any ideas or suggestions would greatly be appreciated.
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Old 01-14-2003, 05:21 PM
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furuno Ls 6100 good luck

Fish on !!
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Old 01-14-2003, 06:38 PM
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DO NOT get the Furuno LS6100 for YOUR specific use. I just went thru this with a Furuno rep and with a sales person from 3 Rivers. With the 10 degree cone angle and 200Hz, it will not read below 2' under the transducer puck and the cone angle at that shallow water will be looking at 1' wide in 6' of water.

Both Furuno and 3Rivers advise to find a unit with at least a 20 degree cone angle when looking for shallow water performance. My 2 buddies and I were looking to pick up 3 units, but we need the shallow capability.

Too bad, that LS6100 is an otherwise top rated unit. Perhaps if enough of us complain to Furuno they'll sell it with a 20 degree angle Xducer.

"Life's too short to own an ugly boat ..."
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Old 01-15-2003, 05:18 AM
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Great info reel-rascals I stand corrected.

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Old 01-15-2003, 05:38 AM
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The Sales Person at 3-Rivers would have either been Clint, the owner, or Cindy. That's all there is to choose from. Both are wonderful people by the way.

Lay down a protractor and put a yard stick on it and see what the area of coverage is at 2 feet and 10 degrees. Then do the same at 2 feet and 20 degrees. Here's what you get, at 10 degrees its an area of coverage of about 4 inches, at 20 degrees it opens up to a whopping 9 inches. That's in 2 feet of water mind you. Now tell me, how much greater is the chance of a fish swimming into a 9 inch circle than than it is of that little critter swimming into a 4 inch circle. My point is that the arugment is absurd. There is no difference and to tell the truth I have to wonder how important a fish finder is in 2 feet of water, or in 5 feet for that matter. In either chase in order to make any use of anything other than bottom contour that you saw on the screen you'd have to gently drop a bait down with the fishing line right beside the transducer, and stand a chance of hitting the fish in the head, to do any good. Of course if the boat used a thru-hull transducer you'd have to devise a way to cast to a point under the boat - very difficult to do -

So although I have a great deal of respect for Clint's opnion on any marine electronics, simply becuse he knows one hell of a lot more than I do or ever will, I just can't agree with his assessment in this one case. Of course I could be dead wrong, I am much of the time you know .....

Thom

"For every complex question, there's a simple answer. And it's wrong."
(--H. L. Mencken)
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Old 01-15-2003, 01:27 PM
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As I understand the Furuno issue, its not about finding a fish in 2', its about getting a bottom return that the algorithim can translate into depth. My understanding is that between 0 and 2' the unit returns a depth of 0'. That's a bit of an issue where I live. Thanks Dale. Do I have it right? I really had my heart set on that machine....Oh well. Now the search begins again.
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Old 01-15-2003, 02:11 PM
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Actually what the Furuno will do at any depth under 2 feet is go blank - that is the numerical depth will go blank, the screen will still show you t hat you are about to run aground (if you haven't already). If you have some other fishfinder that is reported to give accurate depth information at water shallower than 2 feet, well, I'd be awfully skeptical about that one myself.

I might buy the augument that a 10 degree cone angle is to narrow for shallow water fish, say something like 10 feet or so, but even there I'd fall back on to the argument that says that cone angle really doesn't have much to do with what you can and can't see below you, but we don't want to get into that. I will warn you about one thing though, there is at least one maker of fish finders (Humminbird) that measures its cone angles by means other than the industry standard of -3db, they use -6bd and consequently when they say they have a 20 degree cone angle it really is very close to the same thing as most other manufacturer's saying 10 degrees. That and don't become confused and think that there is any real difference between one that is sold as 10 degrees and one that is sold as 12 degrees, there is no real different.

Beyond that I wish you luck in your search for the best finder you can get for your use. I'd be real interested in hearing what you finally decide on and what it is that causes you to choose what you do end up with.

Thom

"For every complex question, there's a simple answer. And it's wrong."
(--H. L. Mencken)
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