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This page describes a homebrew QRP SSB transceiver built by WB9IPA.

Programs for hams written by Alex Shovkoplyas

A freeware HF propagation prediction tool, that interface the VOACAP tool by Alex VE3NEA

SDR software for SoftRock40 freeware by Alex VE3NEA

AirLink Express is a user friendly digital mode software package for the Amateur Radio Operator. The software is compatible with Microsoft Windows XP and Microsoft Windows Vista. It offers PSK, MFSK and RTTY digital modes with logging and macro capabilities. If you have ever used the Digipan software you will be immediately familiar with Airlink Express. The user interface is almost identical by Alex Krist, KR1ST

Electronic World atlas for radio amateurs. DXCC and province prefixes, CQ and ITU Zones in the rectangular and azimuthal projections, continuous zoom and scrolling, Gray Line, city and island index, unique hierarchical prefix database. COM/OLE Automation for easy integration with 3-rd party programs.

Version 1.4.6 of _AAVoice_ functions as a digital voice processor for amateur radio, designed to operate on Windows platforms from 9x through 10. This software leverages pre-recorded WAV files for transmission, allowing operators to send pre-defined messages or calls efficiently. Its core functionality includes PTT control, which can be managed through a simple circuit connected to a COM port, providing a reliable interface for radio keying. The program offers extensive macro capabilities, streamlining repetitive transmissions during contesting or DXing. It also features direct integration with the _AALog_ logger, enhancing workflow for those using DXsoft's suite of tools, and can interface with other compatible programs via its COM-interface. Author Alexander Anipkin designed _AAVoice_ to require a working sound card, and it comes with a basic set of sound files. Users can easily create additional WAV files using standard Windows sound recording utilities, ensuring flexibility in customizing audio content for various operating scenarios.

Voice Shaper is a freeware windows speech pre-processor for SSB transceivers. It receives the voice signal from the microphone connected to the soundcard, and sends the processed audio back to the soundcard in real time by Alex Shovkoplyas, VE3NEA

Butterfly capacitors are hard to find, expensive but they can be home made by PY1AHD

Cluster monitor is a tool for web and telnet clusters monitoring. The program shows spot history, the latest spots are shown in a separate window with full information about the DX, announcements, WWV propagation, and full sorting and filtering capability. Full support for AALog and AAVoice by RZ4AG, DXAtlas by VE3NEA. Integrated dial-up support. Price USD 25

In this site SWL can find many thing he needs: Contest rules and results, software, awards info and photos, forums, chat and more.

The 40/60/80 is a portable loop that covers 80 meters with a high degree of compromise

A simple circuit to homebrew your own headset for the Yaesu FT-817

This antenna was designed to meet the requirements of a light body worn small magnetic loop covering all the frequencies continuously from 7 MHz to 29.4 MHz

HF pedestrian operation using loop antennas by PY1AHD

The Duracell DR 36 laptop battery can be easily find and supplies 12 volts X 4 amperes. The main advantages on this system are, the weight, size, quick battery changing and no stress to the FT 817 power connector by PY1AHD

The Coke Loop is a Small Magnetic Loop Antenna tuned by a trombone-style variable capacitor made with standard soda cans

A small magnetic loop ready for a hand held walk and talk operation by PY1AHD

Monitors the space weather parameters essential for HF radio, including SSN/SFI, Ap/Kp, X-ray/Proton flux, and Auroral activity. IonoProbe downloads near-real time satellite and ground station data, stores information for future use and displays it in a user-friendly way.

An invisible magnetic loop antenna mounted under a table by PY1AHD

A QRP 900 grams hydraulic tuned small magnetic loop antenna by PY1AHD Alex.

Spek helps to analyse your audio files by showing their spectrogram. Spek supports all popular lossy and lossless audio file formats. Spek is free software available for Unix, Windows and Mac OS X.

The Maik Uniform France website, established on March 27, 2000, serves as a central hub for French CB radio operators interested in DXing. It provides a platform for sharing DX news, logging contacts, and distributing relevant software tools. The resource caters to various CB DX groups, including Papa Alfa Tango, Wisconsin Michigan, Charly Tango, Oscar Sierra, Big Time Operators, WAC Club, Azteca DX, and TX&RX Group, fostering a community around long-distance CB communications. This online presence facilitates the exchange of operational information and resources among CB enthusiasts. While primarily in French, an English option is available. The site's content structure supports the practical application of CB DXing by centralizing information on recent DX activity and providing utilities, thereby assisting operators in improving their DXing capabilities and staying informed about the CB DX scene.

The Pocket Loop is a small magnetic loop antenna designed for a carry anywhere operation, it disassembles in 33 centimeters pieces that can be carried even on an attach handbag.

Analog circuit simulator for Windows (not a SPICE). A great tool for students, amateurs, as well as for experienced engineers. Free Demo.

AP Communications CB and Amatuer Electronics Sales

Windows shareware, automatic NCDXF beacon monitor for Radio Amateurs, SWL'ers and HF communication engineers. by Alex VE3NEA. It continuously monitors 18 NCDXF beacons on five bands, automatically detects the presence of the beacon signals, even in QRM and noise.

Personal Web Site of UX7CQ. Information about Ukraine. Old military radios collection. CW Straight Keys.

Web based VHF-UHF RF planning powered by SPLAT! and Google Maps. Access via website, Android App or dynamic Google Earth interface.

Coupling the Duracell DR36 battery to the FT 817 The main advantages on this system are, the weight, size, quick battery changing and no stress to the FT 817 power connector

The performance of a small magnetic loop can be improved constructing it larger, thicker or both. The antenna is covering from 12 Megahertz to 32 megahertz and adding a 156 Pico farads ceramic capacitor it resonates on the 40 meters band. by PY1AHD

A comprehensive listing of AM Stereo radio stations in North America with listening tips, news, AM mono to stereo radio conversion information, sources of AM Stereo receivers and a history of AM Stereo broadcasting.

A motor tuned magnetic loop antenna that can work from 14 MHz to 30 MHz

Digital Amateur Television web sited include a D-ATV transmitter, D-ATV receiver, D-ATV modulator D-ATV schematics by RA3TTS

Win EA6DDlog is a freeware logging application for Windows, developed by EA6DD Biel. It integrates features from existing software like Swislog, Urelib, Logger, and HamRadio Deluxe, presenting a Multi-Document Interface (MDI) similar to Logger. The program prioritizes simplicity, practicality, and operational speed, allowing functionality even on less powerful PCs. It does not require a formal installation; users can run it directly from a portable drive or any directory. This logging utility supports CAT control through Omnirig by Alex Shovkoplyas, VE3NEA, which is automatically installed if not already present on the system. It also offers QSL printing capabilities and connections to online callbook services such as QRZ and HamQTH for contact information. EA6DDlog includes an automatic update mechanism that checks for new versions upon startup, requiring internet access. For Windows Vista users, disabling User Account Control (UAC) is recommended for proper update functionality. The software is part of a broader development effort aiming for cross-platform compatibility, with future versions planned for Windows Mobile, Linux, and macOS.

Air conditioning soft copper tubes are perfect for loop construction. If you want to try a loop you must have an air variable capacitor or a vacuum variable capacitor. Article by PY1AHD

Alexander The Great AWARD from Northern Greece Contest Team

Boatanchors in Russia. Old tube radiosets.

Pileup simulator for for the existing and future DX-pedition operators, and for those who are curious how it feels to manage a pileup.

This is the home page of the Brazilian ham radio PY1WAS, Alex. Essa a home page do radioamador brasileiro PY1WAS, Alex.

Ukrainian radioamateur on HF: DX News, Contesting, Propagation, Conference, Photo, Radioamateur Map, Online Logs etc.

Freeware windows program that allow you to read, search and archive dx news bullettins by Alex, VE3NEA

IdealCircuit is an analog circuit simulator working with true ideal components. It uses exactly the same unique and robust algorithm as NL5 Circuit Simulator. Simple and intuitive interface, fewer components and models, no fancy and powerful features that are only useful for specialized applications.

Founded in 1954, the Alexandria Radio Club takes pride in our service to the community.

Chernihiv ham radio site

Virgo is originally designed to serve for meteorscatter propagation purposes in amateur radio. Maintained by Bastian, DB1BM, and Alexander, DL8AAU. Virgo is a projection of the sky visible at your location. Different to other astronomical sky views, there are no stars displayed, but the radiants of current meteor showers.

SDR++ is a cross-platform, open-source SDR software designed for minimal bloat and ease of use, supporting Windows, Linux, macOS, and BSD operating systems. It incorporates multi-VFO capabilities and offers extensive hardware compatibility through both _SoapySDR_ and dedicated modules. The software features SIMD accelerated DSP for efficient signal processing and provides full waterfall updates when possible, which enhances signal browsing. Its modular design facilitates the development of custom plugins, allowing users to extend its functionality. The application's focus on a bloat-free architecture and user-friendly interface aims to simplify the experience of working with Software Defined Radios. The full waterfall update mechanism is particularly beneficial for visualizing and identifying signals across a wide frequency spectrum, improving operational efficiency for radio amateurs. The modular plugin system enables community contributions and specialized enhancements, making _SDR++_ adaptable for various amateur radio applications, from general listening to specific digital mode decoding.

A nice article hosted on amateurradio.com on how to get started with HSMM-Mesh, the High Speed Multimedia-Mesh, from selecting a router to publishing applications

A portable setup of the ICOM IC-705 with portable VHF UHF and and HF Alex Loop antenna, managed with a portable Raspberry PI 3 setup.

Blog of Charly Tango International DX-Group in Germany who keeps up the heritage of Pit who founded this DX group in 1985.