I cut a whole in the bedroom wall, and inserted a piece of 2 inch pvc
conduit. ON the outside I used an lb elbow. This is a 90 bend, but made
like a junction box. Point the bend down, and stuff with fiberglass
insulation, then bolted a hoffman steel outdoor electrical box on the inside
over the conduit. Bolkhead so-239 connectors mounted in the box door. Makes
a nice neat weather sealed installation.
I now have four empty connections just waiting for antennas.