Hi Rebecca,
Thanks so much for the response. Yes, it seems I need to check individual stations – what a saga! I was told that -6db peak might also be -10db RMS so in actuality, they could all be meaning the same thing… HMM, confusing – it seems strange that there’s no standard – and no real documentation online.
Yes, in London so will look to find simiar places – there’ll be a million of them, I’m sure!
Thanks again for help and if anyone else can shed light then much appreciated.