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Packet radio. In digital radio, packet radio is the application of packet switching techniques to digital radio communications. Packet radio uses a packet switching protocol as opposed to circuit switching or message switching protocols to transmit digital data via a radio communication link .
Worldwide. The Military Auxiliary Radio System ( MARS) is a United States Department of Defense sponsored program, established as a separately managed and operated program by the United States Army and the United States Air Force. The United States Navy-Marine Corps program closed in 2015. The program is a civilian auxiliary consisting ...
An amateur radio operator is someone who uses equipment at an amateur radio station to engage in two-way personal communications with other amateur operators on radio frequencies assigned to the amateur radio service. Amateur radio operators have been granted an amateur radio license by a governmental regulatory authority after passing an ...
Radio networks. A Radio Network is a complex system designed for the transmission of data, information, or signals via radio waves. These networks are an integral part of modern telecommunications, enabling communication between various devices and services over varying distances. Radio networks have evolved significantly since their inception ...
Radiosport (or radio sport) is formal competition among amateur radio operators in any of three amateur radio activities, ARDF, DXing, and Contesting. The Friendship Radiosport Games is an international multi-sport event that includes all three types of radiosport. Since 1977, the International Amateur Radio Union has sponsored the IARU HF ...
Amateur Radio on the International Space Station (ARISS), operating in the Amateur-satellite service, is a project sponsored by various entities and carried out by astronauts and cosmonauts on the International Space Station who also have an amateur radio license. The program was previously called SAREX, the Space Amateur Radio Experiment, and ...