How can one tell which airport is able to offer an SRA?
Looking at the Jeppesen plates, almost nobody in the UK publishes an SRA.
Presumably, only airports which publish a Radar radio frequency can offer an SRA.
Interestingly, I have noticed that EGKA publishes a VDF approach (not the same as an SRA, of course) in the AIP but Jeppesen do not re-publish that plate.