网站简介：Includes news, searchable callsign database, license renewals and updates, DX spotting reports, APRS resources, clubs, solar report, and links.
网站简介：ARRL headquarters office in Newington, Connecticut. General amateur radio information, membership information, news, events schedule, coordinating organizations.
网站简介：Provides reference information including news, local frequencies, and a wiki.
网站简介：Amateur community portal featuring callsign lookup, product reviews, classifieds, news, articles, QSL managers, forums, propagation information, chat and surveys.
网站简介：.PDF datasheets for electronic components, including RF modules, transistors, integrated circuits, and amateur equipment.
网站简介：Email forwarding aliases at @qsl.net, available free to radio hams only. Also offer web hosting and other amateur radio related services.
网站简介：Design a free or pay eQSL card online, and send and receive eQSL cards.
网站简介：Produces communications equipment for marine, amateur and shortwave use.
网站简介：Global real-time APRS map view, updates automatically without reloading.
网站简介：A large collection of amateur radio (ham radio) links, organized in categories, includes shortwave radio topics as SWL and BCL,antenna homebrewing,police radio scanner,manufacturers shops and CB radio world. All links are reviewed by real ham radio operators and submitted on daily basis
网站简介：Web-based ham radio tools to produce DXCC league tables, expedition tools, log search services and most-wanted lists.
网站简介：Don presents amateur radio information for both novice and veterans in the United States, as well as information, tips and how to projects.
网站简介：Includes Java and CGI translators, alphabets, and FAQs.
网站简介：DX spots and propagation information from RADIO Arcala, CR2X, OH8X AND OH0X.
网站简介：Offers club history, licensing information, rules and regulations and a link to local chapters of the DARC. [English, German]
网站简介：Manufacturer of audio, video products, mini systems, personal and floor care small appliance and phones. Germany.
网站简介：Virtual amateur radio transceiver software for Windows, Mac or Linux systems.
网站简介：Amateur radio long distance contact information scoreboard and more
网站简介：This callsign database provides all information free to users. Also offers a forum.
网站简介：Database of old scanner frequencies for thousands of cities across the country.
网站简介：Provides DX news, guest posts, images and movies.
网站简介：Devoted to amateur radio competitions (contests).
网站简介：System to connect amateur radio operators to repeaters, simplex links, and other hams. Includes interface information, documentation, and node information.
网站简介：Features archive of contest results with category and callsign, as well as other ham radio mailing lists.
网站简介：Open-source software development toolkit that provides signal processing blocks to implement software radios.