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Post Posted: Sun Jan 04, 2015 8:53 pm 
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I bought the 740s radar combo and love the unit but the sonar leaves a lot to be desired. Anyone use one and can let me know if they like their fish finder? If so, what transducer are you using?

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1995 Aquasport 245 Explorer. 225 hp Johnson OP

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Post Posted: Sun Jan 04, 2015 10:32 pm 
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I run dual Garmin 740s and use an Airmar through-hull b60. It's a huge improvement over the standard transducer. See if you can find one with six pins (older model).. If not they make a eight pin now and you can use a converter to drop it down to six to fit the 740s. If you want to splurge you can get the 1kw version to make full use of the 740s.

If you want to purchase a dedicated sonar unit that is a whole different discussion but I have found my performance to be competitive with others on the market.

Here is an older thread when I was doing my installation: http://classicaquasport.com/smf/index.p ... #msg116978" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;

PS- I also have the GMR 18HD so if you have any ?s there just drop them in.


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Post Posted: Mon Jan 05, 2015 12:28 pm 
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Thanks for the info. I will look for one. I am using Air Mar transom mount because I like the paddle wheel for slow trolling accuracy vs GPS speed. It indicates speed well hut rarely marks like it should.

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