Quinte Fishing

I am looking to upgrade the basic Lowrance fish finder on my boat. I have a fiberglass boat and I really don't want to drill any holes. I'm looking for something that has somewhat the same capabilities like down view sonar and chirp and even SD slot but does not require drilling
Anybody have any suggestions

You could do a through hull transducer for 2d sonar but that won't be chirp. Why not install a board that you mount the ducers to on the transom.

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Bob MacMillan
Owner/Operator
Kingston Sport Fishing
https://kingstonsportfishing.ca/

BigMac has a good point. Buy yourself a small white plastic cutting board. Mount the cutting board to your transom then screw the transducer into the board. Easy to remove if you ever decide to upgrade your electronics in the future or add additional transducer/ down scan / side scan ducers

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Dan Elliot - A bad day on Quinte is better than a good day at work !!!
http://www.quintefishing.com

With a fiberglass boat you can epoxy the transducer inside the hull and 2D/CHIRP will work well. The DownScan or SideScan will not work well at all. DownScan may work in shallower waters but SideScan will not at all.

Assuming you don't have a bass boat, what the guys mentioned above is a great option. We sell the transducer mounting plates for $30 and I have them in stock. Ours are about a 1/4" thicker than a cutting board so you can use longer screws without accidentally hitting your transom

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