Join Date: Jul 2015
Location: Northshore of Huron
Thanked 18 Times in 16 Posts
Rep Power: 5
Re: Struggling to get a good image with in hulk transducer mount
I went back to the boat today. I tried the ziplok again to no avail. What I did was used a tub of plumbers putty and built a "pool" and filled it with water then plunked the transducer in it. The "downvu" setting pinged 6ft (the actual slip depth! ) then lost signal and went back to flashing 6ft over and over. I tried finding gain options but didn't see any. Just by chance I tried "traditional sonar" from the menu and bingo 6ft and scanning bottom nicely.
I mixed a kit of gflex, scrubbed the transducer and the hull with sandpaper, wiped with acetone, and epoxied the transducer in place and filled the "dam" with the leftover epoxy. All appears well (as long as the epoxy cures right! ) and was getting consistent readings when I left for the night.
The "downvu" style sonar from garmin may not like shooting through the hull but I will tinker with depth and settings. The important part is the other frequencies appear to work just fine!
Some youtube videos, nothing fancy
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