I haven't had complaints about the radar setup before, but based on the above comments, I think that it might be better to change to sector counters for the RAF instead of tower-only radar.
For any interested, when I was designing it, here is what I was thinking.
-- The LW would likely go for things on the coast near the RAF airfields (like the p105 and p106 area), and LW airfields are 1-1.5 sectors from targets, so I figured that the fighting would be relatively confined.
-- In the real BoB, the LW had large numerical superiority, but that's not workable in AH. In BoB scenarios, we can adjust it more finely (like 1.35 LW to 1 RAF or whatever). In Scenarios, for bombers to have a shot at getting to target, you usually need 1:1 on fighters one side vs. the other, then the side with bombers gets bombers in addition to that. but In "This Day" events, they are more informal, less controlled, and it is much easier to have 1:1 than 1.35:1 or something like that. That's favorable to the RAF, but I suspected that command and control would be significantly worse in "This Day" than in Scenarios and that it would thus balance out.
-- Throughout the 2 hours of the event, there would be pilots taking off from time to time. Before takeoff, a pilot could take 20 seconds or so to look at radar and let folks know what he sees, then take off. The next guy up could do the same, and so on, giving the RAF a view of things. I didn't think anyone would want to sit in the tower the whole time or need to do so.
-- I thought that tower-only radar would be more powerful to a side than sector counters.