Interference

Can a power socket cause snr drops and interference?I'm having random snr drops at first I thought it was my heating but I have just had a drop 30mins before the heating has come on,it can't be the street lights because they have never been on/due to switch on or off during any drops.the only thing I can find is when walking round with a untuned radio the plug next to the master socket buzzes like hell, the socket is switched off but still buzzing,when I put it next to another socket that is switched off there is no sound  anyone got any ideas

It would suggest a loose connection at the back of the socket or a fault internally, either of shich could result int fire...best get it checked out.

Sounds like there are loose wires in the socket. They are probably sparking and causing the interference.