Amateur Radio
682 sites
https://qsl.net/n1otx
Paul's N1OTX homepage is a weather-obsessed amateur radio operator's corner of the web, featuring a real-time home weather station for Brockton, MA, Java-based weather casts, and wind chill calculators comparing old and new NWS formulas. Beyond the weather tools, the site also dives into packet radio with a local BROCK node, and offers curated links for amateur radio clubs, ARES/RACES, and general computing resources.
https://swling.com/blog/2026/03/shelfmarks-and-shortwave
The SWLing Post is a dedicated blog covering shortwave listening, ham radio, DXing, SDR technology, and radio broadcasting from around the world. With reviews, program schedules, equipment guides, and community contributions, it's a rich hub for radio enthusiasts of all stripes.
https://hexkit.com/
Ron Mott (W4RDM) runs HexKit.com, a small operation fabricating baseplate kits, hubs, and components for homebrew Hex Wire Beam, Moxon, and Spiderbeam amateur radio antennas. Over 1,700 homebrew hex beam builds have used HexKit baseplates worldwide, making this a well-regarded niche resource for DIY antenna builders.
https://www.qsl.net/redoakarc
The Red Oak Victory Amateur Radio Club (ROVARC) is an ARRL-affiliated ham radio club based aboard the SS Red Oak Victory, a WWII Victory Ship docked in Richmond, California. Club members have restored the ship's original radio room to operating condition and operate on the ham bands under callsigns K6YVM and NY6CI, blending maritime history with amateur radio.
https://qsl.net/vqs
The Virginia QRP Society (W4VQS) is a free amateur radio club focused on QRP low-power operation, welcoming members without any membership fees. Maintained by webmaster Jeff (K4JTN), the site offers club information and links for Virginia-area ham radio enthusiasts interested in low-power communications.
https://dk7ih.de/
DK7IH is Peter Baier's deep-dive engineering site dedicated to building 'hardware defined' ham radio transceivers the old-school way, with analog filters, mixers, and amplifiers rather than software-defined approaches. Dozens of detailed project write-ups cover QRP SSB transceivers, multiband portables, handheld rigs, and homebrew designs spanning HF bands from 1.8 to 28 MHz.
http://sacmarc.org/
SACMARC is an amateur radio club based in Bellevue, Nebraska, operating under the callsigns K0AIR and K0GRL. The site serves as the online presence for this local ham radio organization, with a history spanning from 1997 to 2022.
https://qsl.net/w6efb
The High Desert DX Association (HIDEXA) is a ham radio club based in the High Mojave Desert of California, dedicated to pursuing worldwide DX contacts and making friends around the globe via amateur radio. The site features DX bulletins, contest links, callsign search tools, and member resources including antenna guides, QSL card galleries, and a ham shack tour from webmaster K7HG.
https://trlog.com/
TR LOG is the official home page for a high-performance ham radio contest logging program created by Larry 'Tree' Tyree (N6TR), a member of the CQ Contest Hall of Fame and 2003 Hamvention Amateur of the Year. Visitors can download a free trial, browse features like true two-radio support and a unique name database, and access the manual, CW interfaces, and revision history.
https://hamstudy.org/
HamStudy.org provides free amateur radio exam preparation tools including flash cards, practice tests, and full question pools for Technician, General, and Amateur Extra licenses. Supporting international qualifications from the US, Canada, Argentina, Mexico, and New Zealand, it is one of the most comprehensive online study platforms for aspiring ham radio operators.