I really think this idea is heading in the wrong direction.
Restriction is bad.
Is the problem that people are launching from the carrier, or that people can bee seen launching from the carrier (via bar-dar) from any location?
I'd much rather see a "curvature of the earth" system implimented for the water. 17 miles is usually a normal limit for ground-based objects to see one another. Half that due to our compressed maps and you have about 8 miles of "On the CV invisibility". This means that anyone that gets on the deck of a CV or mans the guns on the battleship cannot be seen on bar-dar.
Then.. have some kind of linear x*miles from nearest enemy field = x*altitude invisibility from bar-dar while on the water (or over land for that matter).
That way, no issues with a "locked" CV bumping into another carrier that isn't locked and not being able to defend itself... or a CV not being able to launch fighters to intercept incoming bombers... or any other problems that could arise from someone shutting down all operations from the carrier.
AKDejaVu
