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Old 03-09-2019, 01:53 PM   #4
wkearney99
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City: Bethesda, MD
Country: USA
Vessel Name: Solstice
Vessel Model: Grand Banks 47 Eastbay FB
Join Date: Feb 2018
Posts: 1,068
I'd start by eyeballing each of them, taking pictures and getting vendor info.

If you're going to spend money it might be best spent installing new, known-working gear. Because labor isn't free and you may end up spending more money to figure them out than it would have cost to just install a new one. Just a point to consider.

Find whichever existing hole is best positioned to give you a good signal and put a new one there. As for the old units, sometimes it's best to let sleeping dogs lie. But I'd check for moisture intrusion and consider what it would take/cost to have the old holes dealt with.
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