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/milark/main/links/general-links.html
The links page for L.A.R.K. (likely a local amateur radio club) compiles dozens of curated resources for ham radio enthusiasts, including club homepages, repeater directories, VHF/UHF resources, callsign tools, and mailing lists. It serves as a comprehensive jumping-off point for the amateur radio community in Southeast Michigan and beyond.
https://mnhamradio.com/
The Bloomington Amateur Radio Association (BARA) is a club for amateur radio operators based in Bloomington, Minnesota, affiliated with the ARRL since 1979. The site covers club membership, repeater frequencies, officer listings, and resources for those looking to get their ham radio license.
https://www.dxzone.com/
DXZone is one of the oldest and largest directories for amateur radio operators on the internet, cataloging thousands of links across categories like antennas, DXing, software, operating modes, and radio equipment. Running since 1996, it also features news, contest information, DX pedition updates, and weekly curated roundups of the best ham radio websites.
http://smallwonderqrp.blogspot.com/2019/04/fiero-compact-qrp-ssbcw-transceiver.html
K.P.S. Kang's blog dedicated to QRP (low power) radio transceiver design, featuring detailed technical write-ups on homebrew SSB/CW transceivers like the FIREO, which uses an innovative FM limiter circuit for speech compression. A must-read for ham radio enthusiasts interested in minimalist radio construction and RF engineering theory.
https://rarchams.org/wp
The Rochester Amateur Radio Club (RARC) is an ARRL-affiliated nonprofit based in Rochester, Minnesota, dedicated to advancing amateur radio knowledge and providing public service support to the local community. The site features club meeting minutes going back to 2019, ARES emergency communications resources, Skywarn weather dashboards, repeater information, and a regularly published newsletter called the Hamster.
https://qsl.net/5b4es
The English School Radio Club (callsign 5B4ES) is a school-based amateur radio club founded in 1969 in Cyprus, covering contesting, licensing exams, and hands-on operator training for new members. The site offers history, exam notes, channel statistics, a photo library, and news about club events, making it a genuine hub for young ham radio enthusiasts.
https://repeater-builder.com/
Repeater Builder is a dedicated resource for amateur radio enthusiasts focused on building, modifying, and maintaining repeater systems. The site dives into the technical side of ham radio infrastructure, making it a go-to reference for hobbyists who want to construct or upgrade their own repeaters.
https://rckara.org/
The RCKARA (likely Reno County Kansas Amateur Radio Association) maintains this site as a hub for their amateur radio club, featuring meeting minutes, hamfest announcements, and member activities. Visitors will find detailed records of club business including repeater trustee reports, WSPR balloon tracker experiments, and links to ARRL News and NOAA Space Weather.
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.