[RichardCoulter]

Originally Posted by BenMcr

You could use BBC Sounds to see if it's on the streams at the time you heard it

https://www.bbc.co.uk/sounds/schedul...service#on-air

Good idea, but unfortunately it says 'Not available' for the overnight simulcast of the World Service. I suppose they expect people to access the overnight programmes from the World Service itself.

I wouldn't know if I would have heard these noises if I had had my V6 tuned to the World Service itself, but couldn't find any present when I checked the World Service around at 3am on BBC Sounds.

---------- Post added at 11:39 ---------- Previous post was at 11:38 ----------

Originally Posted by heero_yuy

I can confirm the noises. They seem to be a set of test tones and also what sounds like short data bursts. I've heard them before overnight. I guess it's the engineers doing some tests.

Oh thank you so much heero, I thought that something was going wrong inside my mind/brain like bleeding or a stroke.

You've put my mind at rest and i'm so grateful.