Just recently there's been a lot of clicks and buzzes on my mediumwave listening set up I tried to trace the cause checking my station earth an RF earth not mains my areal and all the mains connection but all seemed OK. Anyhow after a few days I found the DNO had dug a hole in the next street and replaced a straight through joint. I was hoping it had cured the noises but sadly not. About a week later they dug another hole replaced 3 joints in a space of only 50 feet 2 straight through joint and 1 splitter joint I think that's the right name for it. Finally the noise was cured but do the DNO really look for noise or are they detecting something else like heat or vibration??