HAM:Amateur Extra
From HackerspaceWiki
HAM Amateur Extra Class License[edit]
Amateur Extra Class Amateur Radio Operators License (often shortened to Extra Class License) in the United States of America is granted by the FCC.
The license is the final tier of three licensing options available to amateur radio operators.
Extra class is only available to those holding a valid General class license, the exam consists of 50 questions multiple-choice. Extra class licensees are granted full operating privileges on all amateur bands.