Amateur Radio
682 sites
http://hamuniverse.com/antennas.html
Hamuniverse.com, run by N4UJW, is a comprehensive ham radio resource site with a dedicated Antenna Design Lab offering hundreds of antenna projects, designs, and build guides for amateur radio operators. Visitors can browse antenna types by band, explore digital modes, study for license exams, and tap into a wide range of technical articles covering everything from repeaters to emergency power.
https://www.qsl.net/races
The national web presence for the Radio Amateur Civil Emergency Service (RACES), a program coordinating licensed amateur radio operators for emergency and disaster communications across the United States. Maintained by Ken Bourne (W6HK) since 1997, the site covers FCC RACES rules, news, volunteer protection information, and links to local RACES groups nationwide.
https://dxmaps.com/spots/mapg.php?Lan=E
DXMAPS is a real-time interactive mapping tool for amateur radio operators, displaying live QSO contacts and SWL spots across multiple bands and propagation modes worldwide. Visitors can filter by frequency band, propagation type (Sporadic-E, Aurora, EME, Tropo, F2, and more), region, and data source including DX-Cluster and PSK Reporter, making it an invaluable tool for DXers and ham radio enthusiasts.
https://www.qsl.net/k9jx
The Jacksonville Amateur Radio Society (JARS) of Jacksonville, Illinois maintains this club homepage featuring repeater frequencies, officer listings, and an extensive archive of their bi-monthly newsletter 'The Bandspread' dating back to 1995. A not-for-profit FCC-regulated organization, JARS hosts monthly meetings, operates two repeaters, and provides emergency communications support for the local community.
http://swrrc.org/
The Southwest DMR Radio Club (SWRRC) appears to be an organization dedicated to DMR (Digital Mobile Radio) amateur radio communications in the southwestern region. The site serves as a hub for club members and ham radio enthusiasts interested in digital radio modes and repeater networks.
https://aarc.tripod.com/
The Alger Amateur Radio Club is a Michigan-based ham radio organization serving Alger County, with ties to the ARRL and a focus on emergency communications. The site is a simple club homepage from 2002, offering a contact point for local ham radio enthusiasts interested in radio emergency services.
https://weca.org/
The Westchester Emergency Communications Association (WECA) has been serving the Hudson Valley region through amateur ham radio since 1972, with a base repeater on 147.06 MHz. The site offers an extensive range of resources including APRS live mapping, ARES/RACES emergency communications info, FCC license exam prep, hamfests, local repeater listings, and SKYWARN weather spotting details.
https://cobaltpet.blogspot.com/
Run by a Northern California hobbyist known as 'weatherall', this blog chronicles shortwave and mediumwave radio listening with detailed reception reports, SIO signal quality codes, station identifications, and portable receiver reviews. Covering international broadcasters, number stations, utility signals, NDB logs, and DXing tips, it's a thorough record of the hobby for fellow shortwave enthusiasts.
http://hamgallery.com/
The K8CX Ham Gallery, run by operator K8CX, is a sprawling archive of ham radio history featuring a QSL Card Museum, rare DX sound clips spanning decades from the 1930s onward, and photo galleries from the legendary Dayton Hamvention going back to 1957. With searchable databases, DXCC entity tracking, Hall of Fame lists, and DXpedition galleries, it is an exceptional resource for amateur radio enthusiasts and historians alike.
https://harc.net/
The Huntsville Amateur Radio Club (HARC) is a 501(c)(3) nonprofit based in Huntsville, Alabama, dedicated to educating and training members in amateur radio with a focus on emergency communications support. The site offers access to club resources including a newsletter, repeater and net information, a classifieds section, SKYWARN and ARES/RACES emergency programs, and a DX club.