There are vast arrays of Internet connected GPS/GNSS receivers that could be used to rapidly detect, characterize and geolocate interference sources. Several vendors have commented "The receivers have the information but we don't know where to send it." Cellphones, while individually offering poor accuracy, have the advantage of being numerous. By my estimates, it should take about 10 seconds to detect, confirm and geolocate to within 50 meters. Why we don't do this is beyond me. https://www.gpsexpert.net/samp...

My computers generate heat. It is cold outside. Is is cheaper to turn them off when not in use and let the gas furnace make heat?