Transom transducer location? Mounting Pad?
Pat310
Member Posts: 558 ✭✭✭
Family got me a new Garmin chat plotter that came with a transom mounted transducer. Anyone use one of these on twin engine cruiser and can help me with ideal mounting location? From my online research so far, between the drive seems to be the spot. Also has anyone used a stern saver mounting pad to attach the transducer? Hate the idea of putting more holes back there. Great reviews on amazon.
Stern Saver Glue-on transducer mounting System (Black) https://a.co/d/0XmsRTp
Stern Saver Glue-on transducer mounting System (Black) https://a.co/d/0XmsRTp
Best Answers
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Ian Member Posts: 2,849 ✭✭✭✭Pat - we have the same vessel. I was told to keep away from drives as much as possible so I mounted mine on the port side with the bottom about 1’ under the surface and set an offset in the plotter. The horizontal surface is flat, vertical a slight curve but pulled flat to the hull. Didn’t drill through, just deep enough to hold well and filled with 5200 then screwed in. Ran cable up above waterline and drilled through just under swim platform. Mine is a Lowrance with a good size plug so the hole was bigger than I liked but filling with 4200 as well as a clamshell over the entry and filled keep it all dry.
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LaRea Member, Moderator Posts: 7,733 modTurbulent water is your enemy. Don't mount the sensor downstream of obstructions such as a strake or generator intake. And if you have an existing thru-hull depth sounder, put the new sensor on the opposite side of the boat.
I used a transom-mounted fishfinder for a couple years. It worked great at low speeds. At planing speeds, it was less reliable than the thru-hull I have now -- meaning, it would have dropouts and other artifacts at high speeds.
Answers
Regards,
Ian
The Third “B”
Secretary, Ravena Coeymans Yacht Club
https://www.rcyachtclub.com/
Boat Name: King Kong
"Boat + Water = Fun"
Regards,
Ian
The Third “B”
Secretary, Ravena Coeymans Yacht Club
https://www.rcyachtclub.com/
2018 Cherokee 39RL Land Yacht (Sorry...)
But I have used two sensors at the same frequency. I had the P79 plus a transom-mounted P39, which I added for redundancy (and water temperature). I don't recall having severe interference problems. Eventually, I replaced it with the B60 because I wanted a fishfinder.
Boat Name: King Kong
"Boat + Water = Fun"
Boat Name: King Kong
"Boat + Water = Fun"