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Ham radio page in french

Amateur radio map of Italy with WW locators, provinces abbreviations and Call sign Prefixes, in a A3 size PDF file free to download, made available by IU3KJL Davide

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

Le radioamateurisme,le qrp,l elecraft k2, antennas,qrp,schemas,manuals,nostalgia, meteo,dx clusters hf, and contests links in french

An SDR classification model edited ty Christophe F4DAN The model consists in describing a SDR with letters and digits, each one indicating the value of the corresponding key parameter.

FA-Kleinanzeigen is a dedicated platform for amateur radio enthusiasts in Germany to buy and sell equipment. The site features a wide range of classified ads, including HF and VHF radios, antennas, and accessories. Users can post their listings for free, making it an accessible resource for both seasoned operators and newcomers looking for second-hand gear. The platform categorizes listings into various sections, such as QRP technology, military radios, and even antique equipment, catering to diverse interests within the ham radio community. In addition to equipment sales, FA-Kleinanzeigen also allows users to search for specific items, making it easier to find rare or specialized gear. The site emphasizes user engagement, encouraging individuals to create accounts for posting ads and interacting with other members. With a focus on the German market, it serves as a valuable resource for local hams seeking to expand their stations or offload surplus equipment. Whether you're looking for a new transceiver or just browsing for interesting finds, FA-Kleinanzeigen is a go-to destination for amateur radio classifieds.

Free forum Nottinghams own ukcb forum, all posts are CB radio related and are part of the ukcb.tripod.com website

Fifty-three digital modes, including PSK31, RTTY, and JT65, are explored in this resource, providing detailed descriptions of their underlying technologies and typical use cases. It covers error correction methods like ARQ in PACTOR and FEC in JT65, alongside modulation schemes such as FSK and PSK. The content highlights the evolution of digital communication from traditional TNC-based systems to modern sound card implementations, emphasizing the role of personal computers in advancing these modes. Specific modes like AMTOR, PACTOR, and G-TOR are discussed, noting their baud rates and error correction capabilities. For instance, AMTOR operates at 100 baud, while PACTOR offers 200 baud with Huffman compression. The article also delves into newer modes like MFSK16, which uses 16 tones and continuous Forward Error Correction, and Olivia, capable of decoding signals 10-14 dB below the noise floor. Each mode's bandwidth, speed, and resilience to propagation challenges are examined, such as MT63's 1 KHz bandwidth and 100 WPM rate, or Hellschreiber's 75 Hz bandwidth and 35 WPM text rate. The resource also lists predominant USA HF digital frequencies for bands like 160, 80, and 40 meters, specifying segments for PSK31, RTTY, SSTV, and Packet. It includes links to freeware and shareware sound card software such as Digipan, FLDigi, and MixW, enabling amateurs to experiment with these modes.

Loki5ace version 5.3.39.1 is a freeware amateur radio logging program designed for Windows operating systems (XP, Vista, 7) and compatible with Linux Wine. The software offers multiple installation methods, including a portable version (loc5portable.zip or Loce5pack.zip) that does not require administrator rights or Windows Registry modifications, making it suitable for USB stick deployment or limited user accounts. An official installation (loc5acest.zip) is also available, typically installing to C:\Program Files\Hamlok\LokiAce\ and requiring administrator privileges for initial setup and updates, with user-specific settings and database files stored in application data folders. The program's database, Loc4ac.mdb, can be renamed to the user's callsign for personalization. Loki5ace supports context-sensitive help, which requires WinHlp32.exe installation on Windows Vista and 7. The software includes features such as special print functions, Telnet Watch with comment display, and an 'Own QTH' field for location management. Updates can be performed via an in-program function or by manually copying the Loki5ace.zip file, which contains the main executable, Loki5ace.exe, to the program folder. The latest version 5.3.39.0 includes repairs for special prints and enhancements to the Telnet Watch feature.

A free repeater database app for iPhone and iPad includes repeaters from 35 different countries and is available in 5 languages

PhaseFree, Inc. Surge Suppression. Provide customers with the safest and highest quality surge suppression on the market. Providing surge suppression for the Navy's MARS stations protecting their investment.

Free pdf book on Nicola Tesla. He is the true unsung prophet of the electric age; without whom our radio, auto ignition, telephone, alternating current power generation and transmission, radio and television would all have been impossible

IC706_BKT CAT is used to control the transceiver Icom IC-706, IC-706MKII IC-706MKII/G and IC-718 from the personal computer. Works on Windows and is available in free and free donation version

A multiband J-Pole antenna project that cover 144,220 and 430 MHz. The articles includes several pictures of this multi-band antenna, including handmade schematics and diagrams, project is mainly in Italian

Free ads for UK Hams

TS-850 is not much effective on AM since it does produce fairly clean audio, however while it does noticeably improve low-end frequency response

Brugtgrej presents a Danish online classifieds platform specifically for amateur radio operators and electronics enthusiasts. The platform facilitates the buying and selling of used equipment, including transceivers like the Icom IC-7410, various components such as X'TAL FILTER FMT-15A and TRANSISTOR 2SC3019, and accessories like Sadelta microphone capsules and SMA to SMA extenders. Users can post free advertisements for items they wish to sell or acquire, covering categories beyond amateur radio, including antique radios, military radios, and radio tubes. The site lists active advertisements, with 3136 online ads and 167 online users at the time of analysis, indicating a dynamic marketplace. It also features a forum for community interaction, discussing topics like repeater rings on 1297 MHz and FT8 activity. The platform's structure supports both 'Sælges' (for sale) and 'Købes' (wanted) listings across its various sections. Specific items observed include a Miniwatt pentode 4689, various capacitors and coils, and general electronic components, demonstrating the breadth of offerings available to the amateur radio community.

The OnAir SDR receiver application, hosted on GitHub, supports a broad range of digital and analog modes across macOS, Windows, and Linux platforms. It decodes various digital TV standards like DVB-T/T2, DVB-C, DVB-S/S2, ATSC, ISDB-T, and DTMB, alongside broadcast audio formats such as DAB+, FM, and DRM. For aviation enthusiasts, it processes ADS-B, ACARS, and VDL2 signals, while also offering satellite reception and GNSS capabilities. Amateur radio operators benefit from its support for modes including FT8, PSK31, and CW, in addition to general digital voice decoding and cell tower monitoring. A built-in spectrum analyzer provides visual analysis of received signals. The project demonstrates active development, evidenced by over **1,750 commits** to its codebase. OnAir is designed for compatibility with popular SDR hardware, including _HackRF_, RTL-SDR, Airspy, SDRplay, BladeRF, LimeSDR, Pluto, and USRP devices. This wide hardware support makes it a versatile tool for radio enthusiasts and professionals working with various SDR platforms.

Presents an alternative construction method for isolated element Yagi antennas, specifically for VHF/UHF operation. The technique utilizes commercially available vibration damping clamps (resin support blocks) to isolate 1/4-inch aluminum rod elements from a 1-inch square aluminum boom, simplifying the build process by eliminating the need for custom-machined insulators. This approach is demonstrated through the construction of 6-element Optimized Wide-Band (OWA) Yagis for the 2-meter, 1.25-meter, and 70-centimeter bands, which are well-suited for portable contesting arrays due to their light weight and decent gain. The document provides detailed specifications for element and boom materials, along with step-by-step procedures for cutting, drilling, and tapping. It also covers the fabrication of a feedpoint bracket for a direct 50-ohm SO-239 coax connection and discusses considerations for horizontal versus vertical polarization, including mast placement. The resulting 6-element models achieve an average free-space gain of 10.2 dBi and a 25 dB front-to-back ratio, with the construction technique being scalable for higher gain designs. Included are parts lists with sources, detailed mechanical drawings for each band, and EZNEC data for the 2-meter and 70-centimeter designs, showing both free-space and 30-foot elevation performance. The designs are optimized from W4RNL's original concepts using HAMCALC, ensuring good gain, passband characteristics, and front-to-back ratios for wideband Yagi operation.

The home page of WSJT-X Improved, an enhanced version of WSJT-X, the popular tool for hams interested in digital modes such as FT8 and JT65. The software provides enhancements and improvements to the original WSJT-X program, making it easier and more efficient for ham operators to communicate digitally. Whether you are a beginner or an experienced operator, this download can help enhance your digital communications capabilities. Free downlaod and full description of improved features.

Windows free sound recorder. What you save is what you hear ! Small utility program to capture and save any sound played by your computer. Audio recorded can be converted in MP3 format.

The No-Nonsense Technician-Class License Study Guide for tests given between July 2014 and June 2018, download the free PDF by KB6NU

Nexus is a free and open-source ham radio software application, built in Rust by KD9TAW, designed to integrate multiple station functions into a single program. It supports fifteen operating modes, including FT8, FT4, CW, SSB, FM, RTTY, SSTV, and APRS, with both transmit and receive capabilities across Windows, Linux, and Raspberry Pi platforms. The software provides band activity displays with country, distance, and bearing information, a call roster, a 3-D propagation globe with live spots, and alerts for new DXCC, WAS, WAZ, VUCC, and IOTA entities. It also features a native RF panadapter for Icom CI-V and Flex radios, or a live audio scope for other transceivers. Nexus integrates a comprehensive logbook, computes awards offline without requiring an account, and includes repeater search functionality with curated memory packs. It offers CHIRP CSV round-trip compatibility for approximately 1,000 radio models and is compatible with WSJT-X, JTDX, and MSHV via UDP protocol for seamless integration with existing workflows. The application supports ADIF import/export for log data management and provides accessibility features for operators with hearing or visual impairments, including screen reader compatibility and keyboard-navigable interfaces.

Operating where independent media is suppressed, _Radio Free Europe/Radio Liberty_ (RFE/RL) delivers news and information in 27 languages to audiences in 23 countries. This resource primarily functions as a news portal, focusing on geopolitical events, regional conflicts, and human rights issues, particularly in areas like Ukraine, Russia, Iran, Afghanistan, and Central Asia. It features articles, videos, podcasts, and photo galleries, covering topics such as international relations, energy politics, and the impact of conflict on civilian populations, often highlighting the perspectives of local journalists and freelancers in challenging environments. The content frequently addresses the operational context of shortwave broadcasting, though the site itself is a digital news platform. For example, it details the implications of long-distance strikes and regional military capabilities, which are relevant to understanding the strategic importance of various communication methods. The resource also provides insights into the challenges faced by populations in areas with limited access to uncensored information, underscoring the role of independent news organizations in providing alternative narratives.

Dowload free morse flash cards, and start learning morse code flipping the cards

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.

Over 1900 ARISS school events have been conducted since 2000, facilitating amateur radio contacts between students and ISS crew members. This resource details the Amateur Radio on the International Space Station (ARISS) program, outlining scheduled contacts, operational procedures, and application processes for educational institutions worldwide. It lists specific upcoming contacts, such as those with Lewis Center for Educational Research in California and Vauban, Ecole et Lycée français de Luxembourg, typically operating on a 145.800 MHz downlink frequency. The content also provides crucial guidelines for radio amateurs, emphasizing the importance of not interfering with scheduled school contacts and utilizing the crossband repeater for general QSOs when available. It clarifies crew availability for casual contacts, noting that astronauts are usually free during personal time, approximately one hour after waking and one hour before sleeping, and often on weekends. Constraints on scheduling, such as avoiding EVA weeks and specific crew rest periods, are also detailed. Furthermore, the resource includes historical statistics on direct versus telebridge contacts, QSL information, and links to related ARISS, AMSAT, ARRL, and NASA websites. It also provides information on applying to host an ARISS contact for schools and youth organizations in various regions, including the United States, Europe, Africa, the Middle East, Canada, Central and South America, Asia, and Australia.

Boasting an FM demodulation rate of **1,235 Msps** and a DMR speed of **369x realtime**, SDR-- is a software-defined radio application designed for patching together radio components across macOS, Windows, and Linux platforms. It facilitates connecting a receiver to various channels, which then feed into speakers, maps, or recorders. The software supports a wide array of audio modes including AM, NFM, SSB, CW, FM stereo, RDS, DMR, FreeDV, D-STAR, Fusion, NXDNP, P25, and dPMR, alongside decoding numerous events and messages such as ADS-B, ACARS, VDL2, HFDLA, AIS, NAVTEX, DSC, POCSAG, FLEX, ERMES, FT8, FT4, WSPR, APRS, RTTY, PSK, ISM sensors, and time signals. Beyond audio and data, SDR-- also handles video modes like SSTV, ATVDVB-S, and DVB-S2. It provides comprehensive displays including spectrum, waterfall, constellation, and map views, all integrated with decoded messages. Advanced features include scanning, signal identification, satellite tracking, direction finding, and passive radar capabilities. The application offers remote control options via REST, WebSocket, MCP, and event forwarding, allowing integration with external tools. It can operate on a desktop computer or be deployed on a server, such as a _Raspberry Pi_, for remote access, providing flexibility for shack setups or antenna-side installations.

This website is dedicated to Radio Mobile. Radio Mobile is software by Roger Coudé VE2DBE. The program simulates RF propagation and is for free to the amateur radio community. All you want to know about Radio Mobile can be found here.

The SDRcom platform provides a unique browser-native Software Defined Radio experience, emulating a traditional radio with a physical VFO dial, switches, and an analog meter. It integrates a high-resolution 64k FFT waterfall display, supporting essential modes like AM, FM, SSB, and CW. The **SDRcom Blue** version interfaces with SDRplay® receivers via a local WebSocket, while the free **Red Lite** version supports RTL-SDR V3/V4 dongles through WebUSB, including basic audio EQ and 100 memory slots, along with FT8 decoding. For advanced operators, the Red Pro version expands capabilities with 1000 memory slots, upgraded high-resolution waterfalls, and enhanced W4PAH FT8, FT4, and WSPR decoder engines. It also incorporates 4-band DSP noise reduction and an intelligent band scanner, proving beneficial for weak-signal work. The Network edition extends functionality to access hundreds of global remote SDRs, and an ADS-B aircraft decoding feature with 3D positioning and mapping is also available. All SDRcom applications are designed to run directly in a web browser, eliminating the need for any software installation. This approach simplifies access and setup for radio enthusiasts, from casual SWLs to dedicated digital mode operators, allowing immediate engagement with the airwaves.

The RBN S-Meter visualizes real-time HF propagation data from the Reverse Beacon Network (RBN). It processes thousands of automated spots per hour, providing a real-time picture of active RF paths on HF bands. Users can set their vantage point using _Region Mode_ or _Grid Square Mode_. Region Mode allows selection from broad geographic areas like E. North America or Europe, while Grid Square Mode uses a Maidenhead grid square and radius for more precise data. The app displays eight region panels, each with horizontal bars for bands 160m through 6m, indicating signal strength with a color ramp from green to red. A dimmer trail shows peak hold values, and an S-unit readout provides additional detail. The app is a free web application accessible on any device, offering a practical tool for ham radio operators interested in CW, RTTY, and FT8 signals. It features a Progressive Web App installation option for enhanced usability on mobile and desktop platforms. Users can install it on Android, iOS, and Windows devices, providing a native app-like experience. The app replaces the previous Windows standalone executable, incorporating user feedback to improve features like grid square mode and automatic location detection.

Pirate radio stations broadcasting on shortwave radio. Chatrooms, pirate radio forums, shortwave pirate station loggings, information on pirate radio broadcasting, pirate FM broadcasting.

QSL Cards design and printing, offer free shipping and free graphic design from any quantity of photos and graphics

Daki Funkversand is a German based web shop for Amateur- & CB-Radio equipment. Our shop includes products such as radios, antennas, equipment, PMR, LPD & Freenet.

Memorial Radio Club - K9YA. On-air code practice nets and publisher of the K9YA Telegrah - a FREE ham radio e-zine.

FDlog is a free windows Field day logging program in Danish

My LoTW is a free viewer app for Logbook of the World by ARRL. Features include, View all the QSOs you have submitted to LoTW, Add multiple callsigns under your LoTW account, View all your QSLs, Share digital QSL image which is created by the app for QSLs. Either save it on your device or share it on facebook, View statistics for your worked stations/DXCC/bands etc

A free Labview antenna calculator program. This interesting calculator for small loop antennas can be ran on most recent Windows versions using the Labview runtime.

An home made remote antenna tuner project that with a 6 meter random wire and two radials of about the same length, can tune from 40 to 10 meters without any issue.

Since November of 1998, The Freewheelers Net has been on the air on 3.916 MHz

Sort of similar to the one of the 6m omni. Instead of using twin-lead, this design makes use of a more or less regular double bazooka antenna (coaxial dipole). Your attention shall be drawn to the available standart literature, such as Rothammel. In order to "compute" the dimension, Karl Rothammel mentioned that the total length of the dipole shall be 95% of the free-space wavelength. The short-circuit bridges (closing the folded dipole) are to be placed at a distance-fraction being equal to the velocity factor of the coax cable used, which will be 66% using RG-58 or RG174.

Operates as a universal client for Software Defined Radios, SDRoxide provides a robust platform for amateur radio operators to engage in diverse modes and activities. It integrates a **GPU panadapter** for real-time spectrum visualization, dual VFOs for flexible tuning, and advanced neural noise reduction to enhance weak-signal reception. The software supports a comprehensive suite of digital modes, including FT8, JS8, RTTY, and PSK, alongside built-in skimmers for automated signal detection. Its capabilities extend to Winlink radio email, 868 MHz ISM sensor decoding, and hands-free satellite operation with continuous Doppler correction and Hamlib rotator tracking. The client offers native drivers for popular SDR hardware like RTL-SDR, RX-888, and HackRF One, covering a wide frequency range from 1 MHz to 6 GHz. It also interfaces with CAT-controlled transceivers via Hamlib and Flrig, allowing a second SDR to function as a panadapter. Network dongles, SpyServer, KiwiSDR, and OpenHPSDR Ethernet SDRs are also supported, providing flexibility for remote and local operations. Beyond core radio functions, SDRoxide incorporates a live 3D space-weather globe with aurora and lightning displays, real-time satellite tracking with TLE updates, and a measured propagation heat map. It includes a full-featured logbook with DX cluster spots, award tracking for **DXCC** and WAS, and direct QSL upload integration with services like eQSL and Club Log, streamlining post-QSO management.

DXLook is a free, web-based propagation platform that delivers comprehensive, real-time insight into HF and VHF conditions directly from any modern browser. It aggregates live spots from PSK Reporter, WSPRnet, RBN, and DX Cluster, complemented by NOAA space-weather metrics such as SFI, K/A indices, and geomagnetic alerts. Integrated VOACAP predictions allow practical "theory versus reality" comparisons, while the interactive world map with filters, gray line, and grid overlays enhances situational awareness. With no installation or maintenance required, DXLook provides a convenient, accurate, and accessible solution for everyday operating and propagation analysis.

LZ Open Contest Club - free membership, event's calendar, compare logs online

Log's from overseas territories FT8XA J28EO FT5XA FH5CQ

Visual Wais is a free HAM (Amateur Radio) software to manage WAIS (Worked All Italian Squares) award. With few clicks, it allows the complete award management, from QSO insertion to endorsement requests.

Operating Free DV, the open source digital voice codec for HF, allows any SSB radio to be used for low bit rate digital voice.

Information on Amtor mode with protocol details

Provides a robust logging solution for amateur radio operators across multiple operating systems, QLog simplifies the process of recording contacts and managing station data. It leverages the _Qt framework_ for its graphical user interface and stores all QSO information efficiently in a local SQLite database, ensuring data integrity and accessibility. This design choice supports a streamlined user experience for daily logging activities. QLog supports essential logbook functionalities, enabling hams to accurately document their two-way radio contacts. While not specifically designed for high-speed contest operation, it serves as a reliable tool for general amateur radio logging, allowing operators to maintain detailed records of their on-air achievements and station activities. Its cross-platform compatibility, including Linux, Windows, and macOS, makes it a versatile option for a wide range of amateur radio enthusiasts seeking a free and functional logging application. The project is a fork from _7h0ma5/QLog_, indicating a continued development path.

Free Windows program intended to be used as a training aid for sending CW using an iambic Winkeyer from K1EL Systems. Iambic Master operates as a game. The objective of the game is to send the text in the Target box as accurately as possible.