Ground Loop
In an electrical system, a ground loop usually refers to a current, almost always unwanted, in a conductor connecting two points that are supposed to be at the same potential,…
Power Line Hum
Mains hum, electric hum, or power line hum is an audible oscillation of alternating current at the frequency of the mains electricity, which is usually 50 Hz or 60 Hz,…
Buzzing Noise After Rain
After a rain, probably you will hear a buzzing noise from your high frequency receiver. Why is this happen? Foul weather (rain, fog, snow and hoar frost) can lead to…