You would be suprised. I fitted 3 12v MR16 dowlighters above my sink and they knocked out the DAB radio in the next room which is wired in to a dedicated external areial on the other side of the house. The signal was 100% on every channel and it was reduced to zero.
I just had to pay more for better quality in the end.
I just had to pay more for better quality in the end.