Originally Posted by Jon Brooks
Not aware of any public marine radio that is Mil Spec!
Whilst Icom units are waterproof and good radio's, their marine kit is not Mil Spec, some of their land based commercial kit is.
I think most of the products of both those mfgr's are rated to IPX7, which is a commercial spec, rated 30 minutes submergence at 1 meter, as I recall. Usually touted as "waterproof" in literature.
Don't know what the Mil Spec is watertightness, but when I was building military avionics, the waterproofing was at the board level, rather than the box level.
Oh, yeah; Genoa: I had a new mount built for my electronics. It was an expensive custom job, but came with a free hull, motor, and tubes.