https://apps.fcc.gov/edocs_public/attachmatch/DA-12-347A1.pdf Enforcement Advisory No. 2012-02 FCC ENFORCEMENT ADVISORY CELL JAMMERS, GPS JAMMERS, and OTHER JAMMING DEVICES CONSUMER ALERT: Using or Importing Jammers is Illegal… cited by WIKIPEDIA…
https://apps.fcc.gov/edocs_public/attachmatch/DA-12-347A1.pdf Enforcement Advisory No. 2012-02 FCC ENFORCEMENT ADVISORY CELL JAMMERS, GPS JAMMERS, and OTHER JAMMING DEVICES CONSUMER ALERT: Using or Importing Jammers is Illegal… cited by WIKIPEDIA…