Field Day is an annual amateur radio contest, widely sponsored by IARU regions and member organizations, encouraging emergency communications preparedness...

International Amateur Radio Union was ratified on April 18, 1925. In the current era, this is the date (April 18) on which World Amateur Radio Day is celebrated...

Telecommunication Union (ITU) oversees how much radio spectrum is set aside for amateur radio transmissions. Individual amateur stations are free to use any frequency...

Radio Amateurs of Canada (RAC), known in French as Radio Amateurs du Canada, is the national association for Amateur Radio in Canada. It is a not-for-profit...

Vintage amateur radio is a subset of amateur radio hobby where enthusiasts collect, restore, preserve, build, and operate amateur radio equipment from...

the United States, amateur radio licensing is governed by the Federal Communications Commission (FCC). Licenses to operate amateur stations for personal...

Amateur radio call signs are allocated to amateur radio operators around the world. The call signs are used to legally identify the station or operator...

Amateur radio direction finding (ARDF, also known as radio orienteering, radio fox hunting and radiosport) is an amateur racing sport that combines radio...

The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization...

American Radio Relay League. 2017-01-27. Archived from the original on 2022-10-20. Retrieved 2022-10-20. "It's World Amateur Radio Day!". American Radio Relay...

The history of amateur radio, dates from the dawn of radio communications, with published instructions for building simple wireless sets appearing at...

radiotelegraph communication and later adopted by other radio services, especially amateur radio. To distinguish the use of a Q-code transmitted as a question...

from QRZ Not Your Grandfather's Amateur Radio ARLB024: Saturday is World Telecommunication Day DXCC Rules & 4U1ITU Radio History is Made at WRC-03 with...

An amateur radio net, or simply ham net, is an "on-the-air" gathering of amateur radio operators. Most nets convene on a regular schedule and specific...

The Radio Society of Great Britain (RSGB) is the United Kingdom's recognised national society for amateur radio operators. The society was founded in...

World War II on 7 December 1941, at which time radio amateurs were denied the use of the airwaves, and the amateur service and the Army Amateur Radio...

2024-04-19. "World Amateur Radio Day". iaru.org. Wikimedia Commons has media related to April 18. BBC: On This Day The New York Times: On This Day Historical...

In amateur radio, QRP operation refers to transmitting at reduced power while attempting to maximize one's effective range. QRP operation is a specialized...

The AMPRNet (AMateur Packet Radio Network) or Network 44 is used in amateur radio for packet radio and digital communications between computer networks...

An amateur radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons...

battery power. The use of amateur radio transmitters on an ARHAB flight requires an amateur radio license, but non-amateur radio transmitters are possible...

Amateur Radio on the International Space Station (ARISS) is a program that facilitates radio communications between licensed amateur radio operators and...

Submillimeter amateur radio refers to Amateur radio activity in the sub-millimeter region (275 GHz to 30 THz) of the electromagnetic spectrum. While no...

and Girl Scouts get together with amateur radio operators to talk to sisters in Guiding and Scouting around the world over the air and more recently in...

radiosport) is a competitive activity pursued by amateur radio operators. In a contest, an amateur radio station, which may be operated by an individual...

around the world. Competition from these cables soon ended the economic viability of shortwave radio for commercial communication. Amateur radio operators...

hold the "Remembrance Day Contest" on the weekend nearest VP Day, August 15, remembering amateur radio operators who died during World War II and to encourage...

telescopes, and also the use of radio telescopes. Some amateur astronomers use home-made radio telescopes, while others use radio telescopes that were originally...

allocated by the ITU for radio services such as maritime communications, international shortwave broadcasting and worldwide amateur radio. The bands are conventionally...

supervising the monastery of Niepokalanów near Warsaw, operating an amateur-radio station (SP3RN), and founding or running several other organizations...