[RFI] database of interfering signals?

[Jim Brown]

On Fri,12/16/2016 8:51 PM, Ed-K0iL wrote:
> If it's not local to your location and many are hearing it, once it's been reported to the FCC it won't be on long enough to stay in any database.

The sources of most noise we hear is local to us -- in our own homes or 
in the homes of our neighbors in the form of switch-mode power supplies, 
variable speed motor controllers, and digital equipment of all sorts. 
Some very strong sources may be as much as a mile away. W9RE recently 
chased some nasty noise to a factory at considerable distance, and it 
was a form of electronic noise.

The other common source is power line noise. If I were a betting man, 
I'd say less than 20% is power line noise, maybe less than 10%.

73, Jim K9YC