@terziyski thanks! I've tried Medium but PeterGarner wrote I'm setting up a WiFi service in a small (10m x 5m) building for a charity client. The WiFi works really well between floors, but the signal...

I'm setting up a WiFi service in a small (10m x 5m) building for a charity client. The WiFi works really well between floors, but the signal is also "visible" outside the building, across the road....