I have a small clock radio in the kitchen under a cabinet on a small rack. For a year it was fine, now it has a very loud hum. I bought another radio to replace it and it too hums in that spot. I try another area in the house and the hum is either gone or quieter.

Why was it ok for a while?

Is there any clock radio that won't do this in this location?

My microwave and oven and refrigerator are all on the other side of the kitchen about 4' away. Only a cell phone charger is nearby. Computer, stereo etc in another room.

Thanks,

Ginny