And look, the #sdrserver service for my #AirSpy HF+ Discovery is still running.

Displayed: spectrum analyzer waterfall showing "with" and "without" the RGB LED strip lighting my office.

Noise pollution is a real problem all over the EM spectrum, not just the visible and audible parts.

I'm bringing this device to a friend's to help him track down some EM noise at his place. Since the antenna is hanging on the wall, the SDR is here, too--which means the #RaspberryPi is within a few feet...