The window is a casement window, and
I'm now thinking of leaving it permanently ajar and gluing (silicone) on
the inside frame a piece of plexiglass with a coax feedthrough. That way
I can have light from the window, protection from the elements and not
destroy anything. Ultimately it can be removed when necessary.


If you are going to do it this way, I might suggest you use weather
stripping ( for doors, etc. ) instead of Silicone sealer. It comes in a
variety of thicknesses.... should provide a good seal for your slightly
ajar window, easily allow some RG-8X type coax through, and be a lot
easier to remove than the silicone in the future. Also, will still allow
you to open your window if need be ... just a thought.

Ed K7AAT