Here's an ARRL article from 11-2016 (re the shutdown of 11 FCC field stations) which details plans and motivations. https://www.arrl.org/news/fcc-special-couns

Here's an ARRL article from 11-2016 (re the shutdown of 11 FCC field stations) which details plans and motivations. https://www.arrl.org/news/fcc-special-counsel-laura-smith-says-amateur-enforcement-will-be-aggressive https://www.arrl.org/news/fcc-special-counsel-laura-smith-sa... In a more recent post (which includes good suggestions for experimenters): > The ham bands aren’t full of whacked-out haters looking to get rid of everybody else, but hams are very accustomed to people using the bands without a license or not following the band plans, causing interference problems. https://thesilicongraybeard.blogspot.com/2020/09/a-ham-radio-series-14-self-policing.html https://thesilicongraybeard.blogspot.com/2020/09/a-ham-radio... Usually the 'self-policing' by hams (it's usually very effective) is done gently. They get that the frequencies are free of $$cost, and don't want to lose (any more of) them.