I feel your pain. It's a very outdated law with no real purpose that needs to be abolished.
However, i fear it never will be.
I'd love to listen to Heathrow - Our Kennedy.
I often listen to Edinburgh when I'm close enough, and I can hear some Scottish Control as well as Dundee Airport from where I live.
There also used to be a stream of Glasgow Airport out there too, but I think that's dead now.
Unfortunately, things don't look set to change any time soon.
There was a petition on the Your Freedom website, but that website has now closed.