I currently have an end fed half wave for 10 meter. I’ve been able to receive fairly well, picking up beacons from Australia (I’m in Washington state), but haven’t been able to make contacts. I just ordered a nanoVNA so I can check the swr with the feed line.

For the feed line, I’m planning to make a feedthrough window insert using some thin plywood and barrel connectors. I’ll put some mason line on the plywood so I can lower it to the ground during storms, raise it up to the window and connect when I’m operating.