Amateur Radio
682 sites
http://sffma.net/
The South Florida FM Association (SFFMA) is a Miami-area amateur radio club operating multiple repeaters across the region, with real-time emergency status information and a live audio feed of their 147.000 MHz repeater. The site includes repeater listings, meeting schedules at the Miami-Dade EOC, member resources, and photo galleries of their tower and equipment installations.
https://www.qsl.net/iz7ath/web/02_brew/brew_eng.htm
IZ7ATH's homebrew section is a treasure trove of DIY amateur radio projects covering antennas, RF devices, shack accessories, and test instruments. Visitors will find detailed build guides for cubical quads, delta loops, linear amplifiers, baluns, antenna rotators, and beginner soldering tutorials all in one place.
https://www.qsl.net/af4nj
The QSL.net file directory for AF4NJ hosts a rich collection of ham radio resources including DX maps, LOTW logs, solar data, weather lab files, and audio recordings. Folders referencing ARRL, WWV, DXMAP, and warning maps point to an active amateur radio operator with interests spanning propagation, weather monitoring, and emergency communications.
http://greencountryhamfest.org/
Green Country Hamfest, Inc. organizes the annual amateur radio hamfest held at the Claremore Expo Center in Claremore, Oklahoma. The site provides information about this West Gulf Division event, serving ham radio enthusiasts from the region.
https://www.qsl.net/dl4mea
Günter Köllner (DL4MEA) shares his extensive ham radio station based near Munich, Germany, with a focus on VHF, UHF, SHF, and EME (Earth-Moon-Earth) communication across multiple bands from 144MHz up to 5760MHz. Nearly all of his equipment is homemade, and the site details his rigs, antennas, worked squares maps, and beacon operations including the experimental beacon DB0FAI.
https://qrp-labs.com/2-uncategorised/44-qrp-labs-shop.html
QRP Labs is a shop and resource hub for amateur radio enthusiasts, offering a wide range of kits including CW transceivers, digital transceivers, GPS receivers, WSPR/QRSS transmitters, and high-altitude balloon trackers. The site features an impressive catalog of homebrew-style radio kits catering to QRP (low power) operators, with supporting documentation, newsletters, and community resources.
https://rarclub.net/
The Richmond Amateur Radio Club (RARC) is a Virginia-based ham radio organization with sections covering licensing resources, club repeaters, nets, and public service events. Notable activities include Field Day operations, satellite workshops, balloon chase teams, and volunteer coordination for local community events like the Monument Avenue 10k.
http://foxdelta.com/
Fox Delta, operated by K7SFN, I2TZK, and VU2FD, is a direct-sales kit shop and project resource for amateur radio enthusiasts, offering RF amplifiers, SWR meters, antenna rotator software, and more. The site features a range of active and previous hardware kits including the PA-100 IRF510 RF amplifier and ST2 USB interface, all sold exclusively through this site with no third-party dealers.
https://chicagofmclub.org/
The Chicago FM Club (CFMC) is a Chicagoland amateur radio club established in 1965 with over 150 members, operating five repeaters and hosting nightly nets, monthly fox hunts, and the annual Radio Expo ham fest. The site covers club membership, FCC exam testing, public service events, and social gatherings for hams in the greater Chicago area.
http://bitxhacks.blogspot.com/
BITX Hacks is a technical blog by Pete N6QW dedicated to modifications, hacks, and experiments with the BITX40 and uBitx transceiver boards. Posts cover hands-on hardware tweaks like display upgrades, inline fuse wiring, and external linear amplifier controls, making it a practical resource for amateur radio homebrewers.