This is a 3 dimensional view of the radio frequencies that are around this particular location. This is a relatively rural location, yet from 1000s of high frequency sources we are swimming in these unseen waves of energy. 100 years ago there was no webs or dots...pic.twitter.com/dyilHWsOHT
Great question. We are viewing man made radio signals. The background signals are not of a threshold to register. I will be testing city areas soon. But I think it will be nearly a white screen.