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Transducer selection

Old 01-01-2004, 06:32 AM
  #1  
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Default Transducer selection

Help, After reading most of the postings regarding transducers I am more confused that ever. I have a 37ft. Sundancer that already has 2 depth sounders. Last year I installed a Garmin 2010C chartplotter. I hadn't planned to use the sonar feature because it required an additional piece of equipment between it and a transducer. Not to mention the transducer itself. However, this Christmas a friend gave me the sounder module. Now I am looking into installing another sounder to get the full potential from the Garmin unit. The boat is primairly used for cruising but once in a while we do a little fishing. The other two depth sounders are a B&G unit installed in a thru hull fitting and the other is a Standard Horizon installed inside the hull and shoots through. Both seem to work well for depth. The question is what type of tranducer do I need to install for the Garmin unit.
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Old 01-01-2004, 09:21 AM
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Default Transducer selection

Sell the finder unit on E-Bay and forget it.

Thom

A Wise Man Once Said: "That's EXACTLY why I try NOT to read manuals, I start trying all sorts of stupid things and wasting all sorts of time when I read manuals...."
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Old 01-01-2004, 10:28 AM
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Default Transducer selection

falcon2000ex



Great forum . . . hope you enjoy and continue posting

Introduce yourself, where do you fish / cruise . . . once the members get to know you, you will get lots of suggestions and comments





yes, I'm "Miss-Be-Haven" just a little fish in the THT pond
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Old 01-01-2004, 12:39 PM
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Default Transducer selection

Falcon,

Sorry to be so terse this morning, I was in a hurry so didn't give the usual blow-hard treatment.

You've already got two fish finders in there and it doesn't appear that you need anything more than what you already have. As it is I'm a bit suprised that you aren't running into interference problems between the two existing transducers. Were you to add a third I would have to think that you're going to have problems, maybe so severe that they would make all three not function. That's because most recreational fish finders use the same frequencys, 50 or 200 kHz. The Garmin certainly does.

As it stands now you've got a couple of choices. The first is the do nothing option and just keep what you have. The second is to chance it and buy a third transducer and hook up the Garmin, but that's going to cost you between about $90 and $250 for the transducer. A third option would be to remove the two you have now and install the transducer for the Garmin. To be absolutly honest with you for your application that is exactly what I would do.

You've alread got that great screen on the 2010C and your use would allow you to go to split screen or toggle back and forth without depriving you of other much desired information. The Garmin is going to perform better than either of the ones you have now as well. That's how I would do it.

As to the transducer selection, well, once again its based on the use you mentioned. I'd either pick up the thru-hull for it or find an in-hull. I would not put a transom mounted transducer on a 30+ foot boat anymore than I'd paint a smiley-face on the hood of a new BMW. For me the nod, in your case, would certainly go to an in-hull mount. If you cruise I'm guessing that you care a lot more about have a constant view of the bottom, no matter what your speed, than you do about all the little creatrues that might swim inbetween your hull and terra firma. An in-hull will stay locked up for you. Oh, this presumes that your hull is thin enough to use one, if not got with the thru-hull.


That's how it looks to me. I don't know anything about the requirements for cruising, so this is just a guess. I'm sure there are others who know your situation a lot better than I do so let's hope we hear from them and we can both learn a thing or two.


Thom

A Wise Man Once Said: "That's EXACTLY why I try NOT to read manuals, I start trying all sorts of stupid things and wasting all sorts of time when I read manuals...."
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Old 01-02-2004, 06:57 AM
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If you decide not to use the Garmin GSD 20, email me, I will take it as I am adding the 2010 w/FF soon.
Doug
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Old 01-15-2004, 07:30 AM
  #6  
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Default Transducer selection

Thom,
Thanks for the info. Sorry it took so long for the reply, I was out of town.
Falcon
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