Extra Class Amateur radio licensing in the United States English English b advanced level Extra class English end of the Morse code requirement three license classes a restructuring in 2000 b restructuring in 2000 English Wikipedia No more, not after February 23, 2007 English a Wikipedia - Amateur Radio Licensing a vanity callsign amateur radio operator license Amateur radio licensing in the United States Amateur radio licensing in the United States Amateur radio licensing in the United States Technician Class amateur radio licensing system Technician license Amateur radio licensing in the United States c History of US amateur licensing b Wikipedia Extra Class