Amateur Radio
682 sites
https://aprs.org/
The original home of APRS (Automatic Packet Reporting System), a ham radio digital communications protocol developed by Bob Bruninga (WB4APR) that allows operators to share real-time position, weather, messages, and event data over a single national channel. Now maintained for historical purposes, the site archives over two decades of APRS development including presentations, technical guides, satellite projects, and links to balloon launches and digipeater resources.
https://contestcalendar.com/
Run by Bruce Horn (WA7BNM), this comprehensive calendar tracks amateur radio contests worldwide, offering 8-day, 5-week, 12-month, and perpetual views alongside rules summaries, log submission deadlines, and historical data going back to 2005. Hams can customize the calendar to display only their preferred contests and even subscribe to a weekly email digest, making it an essential reference for the contesting community.
https://mcrca.org/
The Monroe County Radio Communications Association (MCRCA) is a Michigan ham radio club founded in 1941, making it one of the oldest amateur radio organizations in the state and Michigan's first ARRL Special Service Club. The site introduces the club's mission of helping newcomers obtain FCC amateur radio licenses and connects visitors to related local organizations like the River Raisin Repeater Association.
https://w7aia.org/
The Clark County Amateur Radio Club (W7AIA) serves ham radio enthusiasts in Vancouver, Washington, offering resources on license testing, repeater information, emergency preparedness, and club activities. As an ARRL Special Service Club, they co-sponsor the annual SEA-PAC Ham Convention and provide training, nets, and events like Field Day and Parks On The Air.
http://uksmg.org/content/deadband.htm
Written by Palle Preben-Hansen (OZ1RH), this technical article explains how radio amateurs can make long-distance contacts on the 50MHz (Six Meter) band by exploiting meteor scatter propagation even when the band appears dead. It covers meteor trail geometry, shower timing, diurnal and seasonal meteor rate variations, and practical operating techniques, with supporting figures and links to software and IARU procedures.
https://journal.jcampbell.ca/
Jim Campbell (VE1KM) keeps this personal journal documenting his amateur radio adventures, including Parks on the Air activations, balun testing, 3D-printed ham radio accessories, and Morse Code operating tracked via the Reverse Beacon Network. Live feeds of his recent QRZ contacts, POTA stats, and Mastodon posts make this a genuinely active ham radio log worth bookmarking.
https://www.qsl.net/brvarc
The Black River Valley Amateur Radio Club serves Lewis County, New York, connecting local ham radio enthusiasts with the Northern New York Section of the ARRL. The page is a minimal stub that redirects visitors to the regional ARRL section website for club news and information.
https://kb9ocq.tripod.com/CW
A reference page by KB9OCQ dedicated to Morse code (CW) abbreviations and Q-signals used in amateur radio communication. It covers everything from common shorthand like TU and B4 to a full table of Q-codes with their question and statement meanings, making it a handy quick-reference for ham radio operators.
http://njqrp.org/
The New Jersey QRP Club is a community organization for amateur radio enthusiasts focused on low-power (QRP) radio operation and homebrew electronics projects. Visitors will find sprint contest results, homebrew project showcases, TeamSpeak design sessions, and resources for QRP builders in the New Jersey region.
https://qsl.net/gi4fum
David Hutchinson's personal homepage from County Antrim, Northern Ireland, featuring his amateur radio callsign GI4FUM and participation in the Amateur Radio World Ring webring. The site also touches on Antrim District Scouts, archery sports injury resources, and related links, making it a snapshot of a multifaceted Northern Irish hobbyist's online presence.