Many thanks for all the replies and suggestions
As can be seen from the graphic below the site locations , rotation speed and pulse rates can be reverse engineered , but it would be preferable to tighten up the spec using the official info.
I have been advised that the request to the CAA has been accepted and should hear from them within 28 days.
The animation demonstrates the Mode A/C heads in action , white beams , plus two main Mode-S [red beams] which are Heathrow and Bournemouth which I have used as fill ins.
The site south of Teeside is actually misplaced by a few miles and is yet to be formally identified.
