Brigadoon Story

Below is a Google Map showing Brigadoon coverage at various signal levels. On the map, Click on the upper left icon, next to the red B, to open to the signal levels. Click on the square box on the far right to open the page full screen.
Minus 65, I would predict as reliable portable coverage.
Minus 85, I would predict as reliable mobile coverage.
Minus 97 to minus 104, a really good mobile antenna, maybe.