Amateur Radio
682 sites
https://amateurfunk.de/
Jürgen Mayer (DL8MA) maintains this German amateur radio page covering emergency communications, AREDN mesh networking, LoRa/LoRaWAN IoT, and QO-100 satellite operations. The site also connects to the Notfunkreferat for the Württemberg district, making it a hub for regional ham radio emergency preparedness.
https://w5yi.org/
W5YI Licensing Services Inc. is a nationwide Volunteer Examiner Coordinator (VEC) offering full-service amateur radio licensing support, including exam sessions, vanity call sign applications, license renewals, and club station licenses. The site also features a youth licensing program that covers FCC fees for applicants aged 25 and under, making it a practical hub for anyone pursuing or maintaining a ham radio license.
https://amateur-radio.net/rptr
Operated by K1IW, this searchable database lets ham radio operators and enthusiasts look up amateur repeaters and broadcast transmitters across all 50 U.S. states, Washington D.C., and Canadian provinces. Users can filter results by band, digital mode (DMR, D-STAR, YSF), distance from a location, and more, with data sourced from official FCC and NFCC coordination records.
https://thesignman.com/qsl
The SignMan of Baton Rouge offers QSL cards specifically designed for the 10-10 International Net amateur radio organization, with multiple card styles including standard and eyeball business-card sizes. Pricing, ordering information, and design previews are all presented here, alongside links to other SignMan products like name badges, magnetic signs, and Skywarn items.
https://ve7sar.blogspot.com/2026/03/the-sarc-communicator-march-april-2026.html
The digital home of the SARC Communicator, the newsletter of Surrey Amateur Radio Communications in Surrey, BC, this blog publishes bi-monthly issues packed with homebrew projects, DX expedition reports, radio equipment reviews, and amateur radio history. Each edition offers hands-on technical content alongside club news, making it a rich resource for ham radio enthusiasts of all experience levels.
http://ibiblio.org/pub/academic/agriculture/agronomy/ham/BOATANCHORS
Hosted on ibiblio, this is an archive of the Boatanchors mailing list digests, covering vintage and antique radio equipment collecting and restoration. The archive spans hundreds of digest issues alongside FAQs, welcome files, and supplementary resources for enthusiasts of classic tube-based radio gear.
https://www.qsl.net/7n3wvm
MINOWA Makoto (7N3WVM) shares detailed homebrew QRP amateur radio projects built entirely from scratch at his shack in Chiba, Japan. Visitors will find construction guides for transceivers, antenna tuners, crystal filters, frequency markers, magnetic loop antennas, and various measurement tools, all documented in both Japanese and English.
http://bitxhacks.blogspot.com/2017/10/raduino-as-nbfm-tx.html
BITX Hacks is a technical blog by Ashhar Farhan focused on modifications and experiments with the BITX40 amateur radio transceiver boards and Raduino controller. This post walks through a clever 30-minute hack to turn the Si5351 clock generator into a narrow-band FM transmitter using a varactor diode and a simple audio amplifier circuit, complete with Arduino sketch code.
http://w0abr.com/
The Hub City Amateur Radio Club (W0ABR) serves the Aberdeen, South Dakota area with regular club meetings, nets, and informal coffee gatherings for ham radio enthusiasts. The site lists upcoming events, links to local APRS activity and weather resources, and connects members to the ARRL and regional 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.