https://www.theregister.co.uk/2019/08/24/fcc_spectrum_fines/

Three ISPs will be fined $25,000 apiece by America's broadband watchdog, the FCC, for interfering with weather signals in Puerto Rico.

Boom Solutions, Integra Wireless, and WinPR were all found to be using devices for their point-to-point broadband that were “misconfigured,” according to the regulator this week. This caused interference with a doppler weather radar station at San Juan international airport.