Member Nations of the European Conference of Postal and Telecommunications Administrations (CEPT)[2] all share the same amateur radio reciprocal licensing requirements.
[2] In 1995 the treaty creating the International Amateur Radio Permit (IARP) was ratified at a meeting of the Organization of American States in Montrouis, Haiti.
[13] The Inter‑American Telecommunication Commission (CITEL) agreement allows an IARP[14] to be issued, by a member-society of the International Amateur Radio Union (IARU).
[17] Stations operating from space, defined as an altitude above 50 km (31 mi) above the height of the average terrain, are subject to the terms and conditions established in conjunction with their amateur license grant.
Mr. Denniston's 1948 DX-pedition was to the Bahamas and was called "Gon-Waki" ala Thor Heyerdahl's "Kon-Tiki" expedition the previous year.
While the ship's wealthy owners enjoyed the islands an amateur radio operator kept contact with, and sent QSL cards to, experimenters in the United States.