Requirements
The basic WAC award is earned by submission of proof of two-way amateur radio contact using any combination of radio bands or transmission modes. Written proof of the contacts, usually in the form of QSL cards, must be submitted to qualify. Specialty awards are available for working all continents using amateur radio satellites, phone (voice), Morse code telegraphy, radioteletype (RTTY), slow-scan television (SSTV), or fax.
Read more about this topic: Worked All Continents