Amateur Radio
681 sites
https://ure.es/
The Unión de Radioaficionados Españoles (URE) is Spain's national amateur radio association and the Spanish section of the IARU, serving as the official body representing ham radio operators across the country. The site offers licensing information, exam guidance, contest calendars, QSL traffic resources, a webcluster, a members-only area, and a regularly published magazine called Radioaficionados.
https://febo.com/
John Ackermann (N8UR) maintains this sprawling personal site covering ham radio, packet radio, Linux AX.25, and an unusually deep focus on time and frequency measurement including NTP servers and radio-based timekeeping. The site also touches on computer law, photography, and a personal account of keratoconus, making it a fascinating digital desktop from a dedicated technical hobbyist.
https://www.qsl.net/ur4eyn
UR4EYN is a Ukrainian amateur radio club station page hosted on QSL.net, the classic hub for ham radio operators worldwide. The site serves as an online presence for the club, likely featuring callsign information, station details, and contact data for fellow operators.
https://www.qsl.net/zl1vk
The Papakura Radio Club (ZL1VK), founded in 1960 and based in South Auckland, New Zealand, serves local amateur radio operators through club meetings, radio nets, technical projects, and emergency communications (AREC). The site includes club history, a newsletter, member pages, contest participation details, and hands-on projects covering APRS, microprocessors, antenna builds, and equipment modifications.
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/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://n1nc.org/
The Nashoba Valley Amateur Radio Club (N1NC) serves ham radio enthusiasts in north central Massachusetts, coordinating events like Field Day, public service communications for the Groton Road Race, and ARES emergency nets. The site features a newsletter archive, officer listings, meeting info, and regular updates on club activities and regional ARES/RACES nets.
https://k5sar.com/
The Shreveport Amateur Radio Association (K5SAR) is an ARRL Special Service Club based in Northwest Louisiana, founded in 1978 and serving over 120 licensed ham radio operators of all ages and experience levels. The site covers club membership, public service events, SKYWARN severe weather communications, hamfests, license exam resources, and local repeater information.
https://unifiedmicro.com/
Unified Microsystems is a small company specializing in amateur radio hardware and electronic development products, including CW keyers, receive antenna systems, sound card interfaces, and Arduino shields. Their product catalog serves ham radio operators and electronics hobbyists with unique kits and modules available through authorized dealers like DX Engineering and Ham Radio Outlet.
http://k0bg.com/
K0BG is a comprehensive amateur radio resource run by Alan Applegate, focusing heavily on mobile ham radio installations, antenna theory, and RF bonding techniques. The site is packed with detailed technical articles, diagrams, and practical guidance that make it a go-to reference for hams interested in operating from vehicles.