Amateur Radio
682 sites
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://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.
http://nlsa.com/
Northern Lights Software Associates offers Nova for Windows, a satellite tracking program used by NASA, the U.S. Air Force, and thousands of amateur radio operators worldwide. Now available as freeware, Nova provides real-time tracking of unlimited satellites with detailed maps, ground tracks, and Keplerian element updates.
https://www.qsl.net/ng3p
Gwen Patton (callsign NG3P) shares her journey into amateur radio, from childhood fascination with a massive Navy surplus shortwave receiver to earning her No-Code Technician license in 1999 and building an impressive shack. The site details her radio equipment including Yaesu, Alinco, and ICOM rigs, her QRP interests, and connects to ham radio webrings.
http://monitoringtimes.com/html/mttopHF.html
Monitoring Times presents a curated list of over 1000 active HF frequencies compiled by Larry Van Horn (N5FPW), covering military, marine, government, and civil air patrol communications worldwide. A valuable reference for shortwave listeners and scanner enthusiasts, the list spans frequencies from 2 MHz to nearly 30 MHz with detailed mode and geographic information.
https://qsl.net/ve3bdb
The ORIGINAL Wireless Set No. 19 Group is a long-running online community dedicated to collectors and users of the WWII-era military radio known as the Wireless Set No. 19, active since 1997. Visitors can explore technical notes, photo galleries, a world inventory of surviving sets, history of the radio in Canadian service, and member submissions covering everything from operating tips to movie appearances.
https://1x1callsigns.org/
A dedicated resource for amateur radio operators looking to reserve FCC-authorized one-by-one (1x1) special event call signs for conventions, festivals, and other community celebrations. The site includes an FCC regulations guide, a searchable 1x1 callsign database, coordinator listings, and a reservation request system for temporary station operation.
https://trac.org.tr/
TRAC (Türkiye Radyo Amatörleri Cemiyeti) is the official national amateur radio society of Turkey, founded in 1962, serving licensed ham radio operators across the country with regional chapters and representatives. The site offers callbook lookups, VHF/UHF contest results, QSL bureau services, repeater information, EchoLink and APRS guides, and resources for obtaining an amateur radio license in Turkey.
https://dx4win.com/
DX4WIN is a logging and DX management software site for amateur radio operators, focused on tools to track contacts and DX entities. The site uses a frames-based layout typical of early web design, suggesting it has been around since the early days of the internet.
https://mrasz.hu/
The Magyar Rádióamatőr Szövetség (MRASZ) is the official national amateur radio society of Hungary, organizing contests, events, and news across shortwave, UHF, radio direction finding, and high-speed telegraphy disciplines. The site features competition announcements, a QSL bureau, licensing information from the NMHH authority, and resources for Hungarian radio amateurs at all levels.