Amateur Radio
682 sites
https://qsl.net/qarg
The Quincy Area Repeater Group (QARG) was a club of licensed amateur radio operators in West Central Illinois who established and maintained the 147.195MHz 2M repeater serving the Quincy, Illinois and North Eastern Missouri area. The site serves as a historical record of the group's 18-year operation before transferring control to the Western Illinois Amateur Radio Club, including a full list of charter members and their callsigns.
http://rfinq.com/
RF Inquiry Inc. is a Japanese company specializing in amateur and professional radio equipment, selling filters for RFI interference suppression, antennas from brands like OptiBeam and OM Power, and accessories for HF, VHF, and UHF operation. The site serves ham radio operators with a product catalog including bandpass filters, baluns, linear amplifiers, and noise reduction gear from well-known manufacturers.
http://magicrepeater.net/
The official web presence of M.A.G.I.C. (Minnesota Amateur Group of Independent Communicators), a ham radio club operating multiple repeaters across the St. Paul, Hugo, Foreston, and North Branch areas of Minnesota. Visitors will find repeater frequency details, band plans, ham radio links, scanner resources, shortwave links, DMR network info, and announcements for club tailgate events.
https://daily.hamweekly.com/
Amateur Radio Daily, run by K4HCK, is a regularly updated news aggregator pulling in the latest stories, events, and announcements from the ham radio world. Visitors will find coverage of Hamvention awards, DX expeditions, digital conferencing events, and tools like FCC radio databases and Reverse Beacon Network explorers.
https://hamradiouniversity.org/
Ham Radio University is an annual free educational event held on Long Island, New York, now in its 28th year, dedicated to spreading amateur radio knowledge through forums, presentations, and fellowship. The site serves as the official hub for event registration, past presentation archives, moderator bios, and news about upcoming HRU gatherings organized by the amateur radio community.
http://fishpool.org.uk/
G4WIF shares a growing archive of home construction projects for amateur radio enthusiasts, covering topics like antennas, attenuators, and QRP test equipment. The site also references a co-authored book on simple test equipment for QRPers, with years of archived articles dating back to 2016.
https://k5sld.org/
The Arlington Amateur Radio Club (K5SLD) is a community club based in Arlington, Texas, offering weekly nets on their 2-meter repeater, club dinners, licensing resources, and membership information. The site serves as the central hub for local ham radio operators to stay connected, pay dues, and participate in club events including CERT emergency response training.
http://blackcatsystems.com/
Black Cat Systems offers a wide catalog of Windows and macOS software focused on ham radio, shortwave listening, and audio utilities, including tools for SSTV decoding, ACARS, ALE, propagation forecasting, and Morse code training. The site serves as both a software storefront and a hub for amateur radio enthusiasts, with free trials available for most programs.
https://qsl.net/n9zia/wireless/laser/index.html
A hobbyist technical resource covering amateur laser and lightwave communications, including an experimental RS-232 laser transceiver, a 44 km laser link project, and a laser bounce listening device. The site documents hands-on DIY optical communication experiments that push the boundaries of what amateur radio enthusiasts can build on a budget.
https://www.qsl.net/by2hit
The official web presence of the BY2HIT Amateur Radio Club at Harbin Institute of Technology in Harbin, China, reachable via the QSL.net callsign network. The site provides QSL card mailing information and serves as a landing page for this university-based ham radio club.