While this response has very little to do with selecting a depth sounder, it's a solution for the old holes. A long time ago when I bought my boat it came with round instruments. When they were no longer useful, I changed to square instruments--these were also bulkhead mounted by my companionway. I used a piece of teak beneath to hide the old holes completely, like many others. Then I got an instrument pod and new instruments to go in the pod. I converted the old area on the bulkhead with the old holes to a fixed port which I tailored to match the classic C&C design (same radius corners, same type of mount, and same color Plexiglas as my other windows)--it's looks like it came from the factory that way! It provides some much needed daylight into the quarter berth area.
Bob Boyer S/V Rainy Days (1983 C&C Landfall 38 - Hull #230) Annapolis, Maryland email: dainyr...@icloud.com blog: dainyrays.blogspot.com "There's nothing--absolutely nothing--half so much worth doing as messing about in boats.” -Kenneth Grahame
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