Amateur Radio
682 sites
http://kc7nod.20m.com/index.htm
CW's radio page is a hobbyist resource dedicated to shortwave listening, featuring DIY projects and guides for devices like random wire antennas, static discharge units, ferrite couplers, and attenuators. The site offers practical technical content for SWL enthusiasts, including modification guides for receivers like the DX 390 and transformer builds.
http://yarc.org/
The Yonkers Amateur Radio Club (W2YRC) is a New York-based ham radio club affiliated with the ARRL, featuring repeater frequencies, EchoLink and WiresX node info, and a full calendar of events including Field Day, fox hunts, and VE testing sessions. Members and visitors can find meeting schedules, study guides, software resources, a photo gallery, and membership renewal options all in one place.
https://brars.cc/
The Blue Ridge Amateur Radio Society (W4NYK) has been serving ham radio operators in Greenville, SC since 1959, operating repeaters on Caesar's Head and Paris Mountain and hosting the longest-running nightly net in South Carolina. The site covers club news, repeater details, VE testing sessions, swap nets, and member resources for the Upstate SC amateur radio community.
https://www.qsl.net/kc0afx
Oleksandr Dzyubuk (callsign KC0AFX, home call UX7CQ) runs this site from Cherkassy, Ukraine, offering handmade CW Morse keys for sale alongside information about his ham radio activities and local radio communication work. The site also features a radio museum showcasing vintage USSR radios and receivers, plus sections on Ukrainian culture, power tubes, relays, and RF components.
https://radio-astronomy.org/
The Society of Amateur Radio Astronomers (SARA) is a membership organization dedicated to the practice and promotion of radio astronomy among hobbyists, students, and educators. The site offers a wealth of resources including a peer-reviewed journal, educational guides for getting started, student grant programs, project sections, and details about annual conferences held across the United States.
https://nzart.org.nz/nzart
The New Zealand Association of Radio Transmitters (NZART) is the national membership organization for amateur radio operators in New Zealand, offering licensing guidance, study resources, exam information, and emergency communications coordination through its AREC volunteer network. With over a century of history leading up to its 2026 centenary, the site includes band plans, repeater maps, branch directories, and the association's long-running publication Break-In.
https://hamradio.lv/
Created by Andris Bruņenieks (callsign YL2FD), this Latvian-language site offers a rich exploration of ham radio history, including the history of wireless telegraphy, radio in Latvia, the Titanic disaster, and Marconi's legacy. Visitors will also find technical resources covering antenna theory, propagation formulas, CW keys, and vintage rigs like Drake and Heathkit.
http://amwindow.org/
The AM Window is a dedicated hub for amateur radio operators interested in AM (amplitude modulation) operation, covering everything from audio and antenna tech to vintage equipment like Collins, Heathkit, and Johnson rigs. Visitors can explore video and audio clips, technical mods, tutorials, net frequencies, and stories from the AM operator community.
http://w0crc.org/
The Crow River Amateur Radio Club is a regional ham radio club with pages covering repeaters, reflectors, and links to ARRL resources. The site serves as a hub for local amateur radio operators in the Crow River area, offering member resources and monitoring tools.
https://irts.ie/cgi/index.cgi
The Irish Radio Transmitters Society (IRTS) is Ireland's national amateur radio organization, offering licensing guidance, club directories, contest calendars, and membership services for ham radio enthusiasts across the country. Affiliated with the International Amateur Radio Union, the site serves as a central hub for Irish operators with resources covering repeaters, beacons, DXCC standings, awards, and emergency communications.