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The club is based in State College, Centre County, Pennsylvania, the geographic center of the Commonwealth, in the middle of the Allegheny Mountains.

The K2/K1 Online Database has been created to allow Elecraft Owners to post information about themselves and their K2/K1 units

Online shop for amateur radio antenna parts, accessories, holders, clips and insulators for home made antennas. Antena Kit delivers also ham radio transceiver mounts, cables, antenna rotors and other accessories. Based in Brazil

The CQ WPX Contest website provides information about the international contest based on working all prefixes, with details on dates, rules, results, log submissions, online certificates, and log checking reports. Users can also access a searchable score database, rules FAQ, and follow updates on the blog and social media. The site is a valuable resource for amateur radio operators participating in the WPX Contest.

Arduino-based Automatic Amateur Radio Antenna Tuner

OpenHamClock is a modern, open-source dashboard for amateur radio operators, designed as a web-based successor to the original HamClock. Deployable locally on a Raspberry Pi or via the cloud, it centralizes essential DX operations into a single, intuitive interface. At its core is an interactive world map that visualizes real-time DX spots, signal paths, satellite tracking, and POTA activators. The software seamlessly integrates critical tools like WSJT-X, DX Cluster, and PSKReporter for monitoring digital traffic. Additionally, it provides vital environmental data, including real-time space weather indices, solar activity, and personalized HF propagation predictions. With customizable themes and a modular architecture, OpenHamClock offers modern operators comprehensive, at-a-glance situational awareness of global radio conditions

DigiSkimmer is a GIT project that permits FT8/FT4/WSPR skimmer base on kiwirecorder/KiwiSDR.

Two-way radio communications, amateur radio, cb radio shop based in Madrid Spain

Presents the official results for the _CQ World Wide 160-Meter Contest_, a premier event for Top Band enthusiasts. The resource details final scores for both CW and SSB segments, offering links to comprehensive articles, plaque winner lists, and club score breakdowns. It also includes access to score databases for individual modes and years, along with "Soapbox/QRM Comments" from participants, providing insights into operating conditions and experiences. This archive spans results from 2010 through 2025, with a forward-looking note regarding the 2026 SSB contest date adjustment due to a conflict with the _ARRL DX CW Contest_. The site provides specific links for each year, allowing operators to review detailed outcomes, including top scores, errata, and all-time records, such as the _SX5R_ 2017 SSB performance. The structured presentation facilitates easy navigation through historical contest data.

Elements are aluminum TIG soldering rods 4.0mm of diameter, almost 1m long, these objects are light, thin and flexible based on the RZ9CJ Design

Software Defined Radio, QIRX is 64-Bit software, based on TCP/IP raw data, running with any RTL-SDR dongle being driven by rtl-tcp.exe.

An homemade 50 Ohm 140 W dummy load based on an idea and project by ON5DB Renaud.

TyQSL provides a web-based online logbook platform, enabling users to manage all QSOs from any device with features like fast ADIF import, supporting up to **100,000 QSOs** per file. The platform facilitates real-time uploads to services such as _Clublog_ and _eQSL_, either automatically or with a single click, ensuring logs are current across multiple platforms. Operators can manage multiple callsigns and create various logbooks within a single account, allowing for flexible QSO organization. The integrated logger features a streamlined layout with live DXCC checking, duplicate QSO alerts, and autofill for satellite operations. It also supports one-click logging from _WSJT-X_. Users can share public profiles, displaying QSO statistics and searchable logbooks, enhancing community interaction. A PRO account offers additional features like an interactive QSO map, showing worked grids and future activities of other users.

Ascension Ham Radio Club based in Gonzales Louisiana

Amateur radio accessories, like the CT-17B ICOM CI-V hubs, IABs ICOM ACC1 Breakout boxes, GS232Dunio GS232A/B arduino based rotor controler, IMK memory keypad for ICOM Radios

Harris DMR Manufacturer, provides advanced, technology-based solutions that solve government and commercial customers' mission critical challenges

An Android based CW practice program based on simulated QSOs. The app will generate Morse code sounds from 5-50 words per minute.

The page provides information on a simple 50MHz J-Pole Antenna project based on the DK7ZB design. It explains the principle of the Wireman-J-Pole, the feeding process, practical mounting, and simulation results using MMANA GAL. The content aims to guide amateur radio operators in building their own J-Pole antennas for the 6-meter band.

Amateur Radio Store, dealer for DXZkit products, Heil Sound, Arrow, Miracle based in Northern Colorado

Remote Ham Radio via WebRTC Audio Raspberry Pi 3. Stream Transceiver Audio to and from the remote station though a Browser using WebRTC.

The TBJ-1 – a triband base antenna was published in March 2017 QST. This antenna covers 2M/220 MHz/70cm in one 6ft 3/4 inch PVC pipe and requires no radials.

Radio comunication dealer based in Moscow Russia

Scan Antenna supply precision antennas to some of the world’s most advanced, market leading companies. Their antennas fit in satellite voice/data, mobile/wireless GSM, GPS, marine/land based radio and other specialty systems.

An interesting article about a homemade LiFePO4 battery pack for ham radio operations, a 10Ah LiFePO4 based on Headway 38120 Cells

DXCC status monitoring tool. Maintains database of new worked countries and generate statitics

A home made end-fed half-wave antenna coupler with antenna lenght calculator and counterpoise calculator based on center frequency. Includes pictures and drawings along to antenna homebrewing instructions with a home made on air wound transformer

On-line shop for coax cables, RF connectors, Lightning protectors, Create antenna rotators, antenna masts and mounts, amateur antennas by FlexaYagi, Tonna F9FT, ANjo-Antennen and M2 Antennas based in Eggolsheim Germany

The Chelsea Amateur Radio Club is based on service to the community and the advancement of Amateur Radio in Southeast Michigan.

A WSPR beacon project based on Arduino nano (atmega328P) based microcontroller

An article on origin and usage of the Decibel, that has always been a logarithmically based representation of a power ratio

Electronic components online shop based in Italy

World-Wide 50MHz Beacons database maintanied by G0LGS provide a fully sortable table available also in a google map format

The complete software suite to Edit, Analyze, Generate Statistics, View multiple logs simultaneously, Map QSOs, Import and Export to Cabrillo or ADIF files. The Contest Log Analyzer has been developed as a complete database management application, where you can create separate Databases, containing several Logs, a convenient way to save, in one place only, all your log files that accumulate over the years. It runs on Mac and Windows, and it is a commercial product.

Commercial VHF UHF antenna maker based in Brazil

This free program teaches you to receive Morse code. It starts with a few letters and adds more when it sees that you are ready. Based on A Fully Automatic Morse Code Teaching Machine, it is a small application and it runs even on recent MacOSX versions.

Appendix 42 to the Radio Regulations, published by the International Telecommunication Union (ITU), serves as the authoritative global reference for assigning call sign series to countries. This essential resource allows radio operators, including those in the amateur service, to accurately identify the national origin of a station based on its callsign prefix. It is fundamental for DXers, contesters, and anyone involved in international two-way radio communication, ensuring correct country identification for awards like _DXCC_. The table details the specific blocks of call signs allocated to each administration, facilitating the unambiguous determination of a station's geographical location. For instance, prefixes like K, W, N, and AA-AL are assigned to the United States, while G and M series denote the United Kingdom. Understanding these allocations is crucial for logging contacts and verifying QSLs. This ITU publication is regularly updated to reflect changes in national assignments and new allocations, maintaining its accuracy as the definitive source for call sign series worldwide. It underpins the global framework of radio communication.

Manufacturer of software definded radio receivers, antenna switches, preselectors, antenna splitters based in Italy and USA

Amateur radio and two way communication devices online shop based in Sweden

Presents an online callbook specifically for amateur radio operators within Serbia, offering a searchable database of YU callsigns. The resource allows users to query individual callsigns to retrieve associated station information, including operator details and licensing status. It also features a complete list of callsigns registered with the Amateur Radio Union of Serbia, providing a comprehensive directory for the region. The platform includes statistical summaries related to Serbian amateur radio, such as the total number of active licenses and distribution patterns. It displays the last modification date for the underlying data, indicating the currency of the information provided. The web interface is version 1.1.7, developed by YT9TP, ensuring a consistent user experience for accessing Serbian amateur radio data.

Angel of the North Amateur Radio Club based in Gateshead, Tyne and Wear - Club callsign - MX0GGP

Online Wifi shop based in Greece

Police radio scanners, accessories online shop includes radio scanner resources based in Minneapolis, MN USA

Voldatech Telecommunication & Networking Solutions, RF Coax cables and connectors manufacturer based in China

The Reno County Kansas Amateur Radio Assocation is based in Hutchinson, KS, providing Ham radio activites, repeaters, and training to local residents.

Elmendorf Amateur Radio Society Joint Base Elmendorf-Richardson JBER, Alaska

Antennas for the 1296 MHz based on the construction plans of some Yagis 35 elements by DL6WU, F9FT, DJ9YW. These antennas features a boom of about 3 m and gives a gain of about 17.8 dBd

The club is based in chingford, north east london

This resource provides a historical analysis of amateur radio call sign assignment policies in the United States, detailing regulatory shifts from the Department of Commerce to the Federal Radio Commission (FRC) and subsequently the Federal Communications Commission (FCC). It documents the evolution of call sign issuance, from early reissuance practices in the 1920s to the implementation of the Group Call Sign Assignment System on March 24, 1978. This system categorized call signs (e.g., 1x2, 2x1, 1x3, 2x3 formats) into groups A, B, C, and D, correlating with license classes such as Extra, Advanced, General, and Novice, and specifying prefixes for contiguous U.S. and territorial areas (e.g., _AH_, _KP_, _KL_). The document further details the legislative process leading to the modern Vanity Call Sign program, initiated by a petition in June 1990 and formalized by the Omnibus Budget Reconciliation Act of August 10, 1993. It outlines the FCC's adoption of final rules on December 23, 1994, and the subsequent fee structure, with the first vanity call sign issued on May 31, 1996, at a cost of **$30.00** for a ten-year term. The ARRL's proposed "starting gates" implementation strategy is also described, which phased in eligibility for vanity call signs based on license class and prior holder status. DXZone Focus: Historical Document | Regulatory Analysis | Call Sign Formats | Fee Structure

A project to turn a Raspberry Pi into a very versatile tracker, digipeater and an iGate

Selling all brands of Hamradios and CB Radios based in Norway