radar settings for the RAF will be changed for tonight from what is in the SEA right now.
new settings will be:
Dot Dar = 10 miles from bases
Bar Dar = 20 miles from bases
This is so the coast of England has enough "spotters". There were some big holes in the coast with 5 mi dot dar. As for the 10 miles out over the channel, just pretend they have really good field glasses!
The 20 mile bar dar will just extend over Calais, but shouldn't cover other parts of France.