Weird Signal on Multiple Frequencies
I have honestly no idea what this is. It sounds like someone threw a GoPro out of an airplane
Definitely computer noise of some sort. -1/14/19
EXTRA Audio File:Weird Again at 4564.wav
I've been seeing this noise on the band for the last ~6 months or so. I've recorded it between 4.687 mHz all the way up to around 8.176 mHz in steps of about 20kHz. In my case the source of the noise has been confirmed to be external to my QTH, and is coming from an unknown device about 1 block away. Strongest signal has been traced to the rough vicinity between 3 light poles in the area, and appears to be using the local power grid between these poles as an antenna to propagate.
The noise is persistent, and can be recorded 14 hours a day, 7 days a week, 365 days per year. I suspect a failing primary coil in a power supply/transformer for the LED street lighting in the area. Noise can be observed in Castle Rock, Colorado, USA as of 26 Feb 2020.