Amateur Radio
682 sites
https://ncdxf.org/
The Northern California DX Foundation (NCDXF) is a charitable organization founded in 1972 that provides financial support for DXpeditions to rare DXCC entities around the world. Visitors can explore funded expeditions, apply for grants, learn about the NCDXF-IARU Beacon Project, and find resources for the amateur radio DX community.
http://marsradio.net/MARSmain
The Metropolitan Amateur Repeater System is the official site for a Los Angeles-area ham radio repeater network founded in 1993, operating on 447.820 MHz and linked 24/7 to a Missouri repeater via EchoLink. Beyond repeater info, the site offers local earthquake reports, weather, and traffic resources for Southern California ham operators.
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/w4amc
The Brightleaf Amateur Radio Club (BARC) of Greenville, NC maintains this hub for club members and ham radio enthusiasts, featuring meeting info, membership rosters, newsletters, and emergency preparedness resources. With callsigns W4AMC, W1VOA, and W4UHS, the club covers everything from Skywarn weather spotting to DX activity links and real-time solar data.
https://qsl.net/swlham
Mike (KC9LDO) runs this amateur radio hub packed with real-time propagation data, DX news feeds, solar and geomagnetic condition monitors, and links to DX logs and QSL resources. It serves as a handy dashboard for ham radio operators interested in VHF, DX chasing, and band conditions across multiple frequencies.
https://f4iha.fr/
The blog of Olivier (F4IHA), a French amateur radio enthusiast who documents his homebrew radio projects including low-power QRPP transmitters, VFOs, antenna tuners, and fox-hunting modules built with Arduinos and components costing under 30 euros. Posts cover schematics, PCB design in KiCad, measurements, and hands-on construction with detailed technical write-ups that make it a great resource for DIY radio builders.
https://rrra.org/
Red River Radio Amateurs (RRRA) is the official website for an amateur radio club serving the Red River region, featuring club news, event calendars, repeater information, and resources for aspiring ham radio operators. The site covers POTA activations, net schedules, license testing, ARES meetings, and an active blog with technical posts from club members.
https://region6armymars.org/resources/solarweather.php
Region 6 Army MARS consolidates critical solar weather data for HF radio operators, including ionospheric critical frequency (foF2), maximum usable frequency (MUF), K-Index readings, solar X-ray flux, and proton flux from GOES satellites. The site serves as a practical reference for Army MARS members needing real-time propagation data to assess HF communication conditions.
https://m0pqa.com/
Pablo (M0PQA) runs this technical amateur radio blog covering hands-on projects like firmware recovery, AllStar node modifications, APRS gateways, and packet radio on Raspberry Pi. The posts are detailed and practical, making it a valuable reference for hams tackling real-world station challenges.
https://zl2pd.com/index.html
Andrew Woodfield (ZL2PD) has built an extensive technical resource covering homebrew QRP transceivers, Si5351 VFO/BFO projects, antenna tuners, and DIY electronics for amateur radio operators. The site spans decades of original projects with detailed build guides, circuit diagrams, and modification instructions for portable HF SSB gear.