Probably late to the party, but did anyone see this re: HAM radio?
https://wireless2.fcc.gov/UlsApp/LicArchive/license.jsp?archive=Y&licKey=12382876
From this article by Sorcha Faal… always take whatdoesitmean with a grain of salt, but they often cite credible material
https://www.whatdoesitmean.com/index2631.htm