S3 Series

Does anyone know how to generate a coverage diagram based on closed fields?
Do we have radar at F1?
Not sure how much of the channel will be visible to us...

"Chain Home" is on the cliffs of Dover, just west of field F-1. That will give you 60 miles of visibility from there.

Radar – 60 mile radius, grey dots, in-flight arrow. Minimum alt is 300 ft

Thanks!