DEF CON 27, Ham Radio Village, Jason's 'The RF Dark Arts: How I Went From Total Ignorance To Receiving 1000+ Mile Contacts In 6 Months' → January 02, 2020 by Marc Handelman in Conferences, Amateur Radio, HAM Radio, DEF CON 27, Education, Information Security Thanks to Def Con 27 Volunteers, Videographers and Presenters for publishing their superlative conference videos via their YouTube Channel for all to see, enjoy and learn.