This week I received from Universal Radio a Comet CTC-50M antenna line feed-through. It’s a piece of coaxial cable designed to allow you to pass an antenna line through a window, but still allow you to shut the window all the way. It does this by using a special piece of flat coax, instead of the normal round cable.
The ends are terminated with SO-239 connectors, allowing you to attach a PL-259-terminated line from the antenna, and another line from the radio.
I had been using a PanelRelief Lexan pass-through panel from QuickSilver Radio. However, it wasn’t very weather tight. Not a problem in warm weather but unacceptable when it’s cold.
So far it seems to work fine on receive but I haven’t tried transmitting yet. I’ll post a follow up after I do.