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This program has been designed for packet communication with ISS (International Space Station), PCSat or 'compatible' satellites with ease... Ideal for any UI packet communication.

A means of sync-ing your computer clock using a GPS Receiver. GPS2Time is another GPS network time synchronization software application for Window 7 and higher. Freeware.

Windows open source packet radio decoder. Decodes AFSK1200, AFSK2400, HAPN4800, and FSK9600 packet data with a radio connected to your pc sound device.

HAMIC, is a program designed to simplify a number of calculations commonly used by HAMs. It is designed for the HAM radio hobbyist, but may be useful to others as well. HAMIC has a simple to use, but powerful graphical interface that allows solving simple circuits such as resistors in series or parallel, or more complex circuits such as L networks or T networks. As well, other calculations such as SWR and reactance conversions are supported. Windows shareware.

A 4 yagi beam VHF antenna made with PVC easy to carry in a backpack for portable operations

To save a little time from calculating and experime nting when winding toroid cores here a chart of the most commonly used cores

Italian contesting logging program from windows by I8VKB

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

Free memory management software for the Yaesu FT-991 and FT-991A models. It runs only on Windows 7, 8, 8.1, 10 both 32 and 64 bits, it also permits basic remote control features and allow backup and restore settings and memories. Documentation in mainly in French.

NetTime is a simple and free software to sync your computer clock via internet. Very useful tool for FT8 FT4 operating modes.

RCKLog is a windows freeware program for logging and administration of SSB and CW-Contest with simultaneous control of transceiver and real-time operation of Packet-Radio.

Optimizing DX chasing efforts, this software provides a refined approach to monitoring the DXCluster. It allows operators to configure specific filtering criteria, ensuring that only relevant DX spots are displayed, thereby reducing clutter and focusing attention on desired entities or bands. The application integrates alarm functionalities, notifying the user when a spot matching their predefined parameters appears on the cluster, which is particularly useful for working rare DX or specific band slots. Spot supports both macOS and Windows operating systems, offering a cross-platform solution for a broad user base. Its design emphasizes user control over the displayed information, moving beyond a simple stream of cluster data to an actionable intelligence system for DXers. This client aims to streamline the process of identifying and pursuing DX opportunities. While the software was previously a commercial product, the developer, K3NC, has retired and made registration files for DXBase 2007 available for free, along with a utility to generate registration keys for that specific version. This allows continued use of the DXBase 2007 logging software, though it's important to note the 64-bit OS compatibility modification required for generated registration files.

Logbuchprogramm, DOS and Windows Logbook for radio amateurs written by DK8AT

TAHO.EXE, an open-source software, facilitates the creation of APRS maps for _UI-View_ by converting free data from _OpenStreetMap_ into the required *.JPG and *.INF file formats. This utility, developed by Dimitri Junker with specific UI-View format support added at the request of HB9DTX, streamlines the process of integrating detailed geographical information into the _UI-View_ platform. It operates on Windows, generating map files with border coordinates in just a few clicks, eliminating the tedious manual creation of *.INF files for custom maps. This converter allows UI-View users to leverage the continuously updated and community-contributed data of OpenStreetMap, which often surpasses commercial map quality in specific regions. The process is straightforward, with a detailed step-by-step guide available on the OpenStreetMap wiki, translated into French and German. TAHO.EXE significantly enhances the utility of UI-View by providing a readily accessible and continuously improving source of detailed, current geographical maps for displaying APRS station positions and objects.

qrq is an open source Morse telegraphy trainer which runs on several operating systems (Linux, Unix, OS X and Windows), similar to the classic DOS version of Rufz by DL4MM.

Win92 - Windows-based data management for the Pro-92/2067 trunking scanner

Over 47 full-screen maps are available within _NAOMI_ (North American Overlay Mapper), a free Windows program designed for US and Canadian amateur radio enthusiasts. This mapping suite includes 9 backgrounds such as CQ Zones, ITU Zones, and ARRL Sections, along with 16 foreground layers like Counties, Areacodes, and Grid Locators. Users can calculate distances and bearings, track real-time mouse positions with continuous Grid-Locator data, and integrate with APRS for live station tracking via the FindU database. For a global perspective, the _Global Overlay Mapper_ (GOM) provides a world map, 8 continental maps, and 29 sub-continental maps, all with 12 active layers including Country Outlines, CQ/ITU Zones, and Prefix information. Both NAOMI and GOM offer feature-locate systems to jump to positions based on prefixes, capital cities, or Grid Locators, and provide customized beam headings and distance displays. The site also features _LogView_, a post-contest log visualization tool that analyzes Cabrillo-format logs by plotting QSOs on maps, supporting over 30 major contests like CQWW and ARRL DX, and allowing comparison with published results.

WorkedGrids is a Windows application that displays a map showing the amateur radio grid squares contacted and logged in using a third-party logging program. WorkedGrids uses colors to display information on a per-band basis. Up to four bands can be displayed concurrently by VE2ZAZ Bert

miLog provides an integrated software solution for amateur radio station management, encompassing logging, DXing, and contesting functionalities. The software is designed to operate on Windows 2000 and later versions, indicating a focus on stability and compatibility within the Microsoft ecosystem. Its feature set includes comprehensive logging capabilities, tools for DX operations, and specific modules tailored for competitive contesting, streamlining the workflow for operators engaged in these activities. The resource details the software's commercial availability and its primary functions, which extend to station control. This integration allows users to manage multiple aspects of their amateur radio operations from a single application, potentially reducing the need for disparate tools. The description also highlights support for various operating modes, suggesting flexibility for different communication protocols and techniques. While the page itself is minimal, it serves as a direct point of reference for miLog, outlining its core purpose and system requirements. The emphasis on a highly integrated approach distinguishes it as a tool aiming to consolidate essential ham radio software functions.

Ham radio map database with search and logging functions. Currently in german only, run under Windows.

This program is for downloading, uploading the memory channels and various settings on the TS-2000(X)/B2000. To write data to or read the data from the TS-2000(X)/B2000 memory, an RS-232C straight cable is required. Runs on Windows 98.

Ham radio antennas and electronics, specialized in 1/2 wave dipole, OCF dipole, windom, full wave loop, end fed, inverted L, portable end fed antenna, long wire, SWL antenna, fan dipole, multiband dipole, G5RV and military antennas.

Amateur radio operators frequently seek efficient methods for logging contacts, particularly during contests or DXing sessions where speed and accuracy are paramount. MiniLogBook addresses this need by providing a streamlined logging utility designed for Windows environments. The software facilitates rapid entry of QSO data, offering an automated lookup feature for previous contacts based on recent callsigns, which significantly reduces redundant data entry. The application's distinctive utility lies in its integration capabilities with other ham radio software, specifically _MRP40_. Users can select text within the MRP40 receive window and, with a double-click, automatically insert that text into MiniLogBook. This feature is particularly advantageous for operators engaged in digital modes like RTTY or PSK, where copying callsigns and exchange information accurately and quickly is critical. The tool aims to simplify the logging workflow, allowing operators to focus more on the contact itself rather than manual data transcription. While primarily a logging tool, its focus on quick entry and interoperability with specific third-party software distinguishes it from more feature-rich logging suites. The software is distributed as freeware by _Polar Electric_, making it accessible without cost. Its small footprint and direct functionality cater to operators who prefer a minimalist approach to logging, prioritizing efficiency over extensive database management or advanced reporting features.

Windows Software Defined Radio SDR for analogue and digital modulation types. Can decode AM and FM+RDS radio as well as DRM/DRM+ and time signals DCF77/HBG. Sodira supports the use of the RTL-SDR through use of the ExtIO_RTL2832.dll module. Demo version available.

ebook2cw is a command line program (optional GUI available) which converts a plain text ebook to morse code MP3 files. It works on several platforms, including Windows and Linux.

The G5RV multiband HF antenna, designed by Louis Varney (G5RV) in 1946, is a popular compromise antenna offering good overall performance on most HF bands when paired with an external antenna tuner. The basic full-size G5RV measures 102 feet across the top for 80 through 10 meter operation and is fed at the center via a 34-foot low-loss feed-stub. This interaction between the radiating section and the feed-stub facilitates matching across 80-10 meters with a standard tuner, often eliminating the need for ladder line directly to the shack. The antenna's design center frequency is 14.150 MHz, configured as a 3/2-wave dipole on 20 meters, with its 102-foot length derived from long-wire antenna formulas. Construction details emphasize the matching section, which can be open wire, ladder line (window-type), or TV twin lead. Each type has a specific velocity factor (VF) affecting its physical length for an electrical half-wave on 14 MHz; for instance, open wire requires 33.7 feet (VF 0.97), ladder line 31.3 feet (VF 0.90), and TV twin lead 28.5 feet (VF 0.82). The article provides formulas for calculating these lengths and discusses the antenna's behavior on individual bands, from 3.5 MHz where it acts as a shortened dipole, to 28 MHz where it functions as two three-half-wave long-wire antennas fed in-phase. Practical construction notes include recommendations for vertical descent of the matching section, sealing the coax junction, providing strain relief, and winding a coaxial choke coil to mitigate common mode current. The resource also presents dimensions for double-size (204 ft) and half-size (51 ft) G5RV versions, along with their corresponding matching section lengths for various line types, making it a versatile reference for hams considering this classic wire antenna.

Calculating Antenna Wind Load

Feld hell freeware windows program that permits RTX hellschriber operations by PA3BQS

This computer control program is specifically designed for the Yaesu FT-920 transceiver. Freeware windows application.

Amateur radio open source log program written in PHP. Put your log online for visitors to browse in real time. Access your log from any web browse, can run under windows linux and macos with apache, mysql and php

At the moment the most used program is UA1AAF. It is an excellent program written by Boris, UA1AAF, to handle ARI International DX Contest. It can simulate K1EA or N6TR workings; it will be possible to connect the RTX to the computer using a standard interface in such a way as to transmit directly in CW from the keyboard; most of the controls are like K1EA's CT and N6TR's TR ; on line help provides almost all the information necessary for using the program. Is possible to insert QSO after the contest. An appropriate utility in included for conversion in ADIF format. The program is very small and therefore works without any problems on any IBM compatible computer with DOS 3.3 and over or Windows 95/98.

This article explain how to homebrew and use an HF antenna analyzer by simply adapting a Windows PC, micro-controller and a DDS evaluation board by K6BEZ

Free windows logbook program for SWLs, allow a quick and fast SWL logging during ham radio contests. Dupe check, utc time, partial check, cabrillo file export, multi language support

MSHV is a free windows and linux multimode software that support weak signal digital modes like MSK144 MSKMS JTMS FSK441 FSK315 ISCAT JT6M FT8 FT4 JT65 PI4 amateur radio modes. MSHV features several interesting features including the Multi Answering Auto Seq Protocol, allowing multiple signal transmissions to be used during dx peditions.

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.

Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit. After that simulation has finished you can view the simulation results on a presentation page or window. Run on Linux.

DX_Central, a compact desktop application, provides amateur radio operators with critical propagation data by aggregating solar statistics and imagery from various authoritative sources. This includes real-time information from agencies like NOAA and NIST, offering insights into current space weather conditions that directly impact HF propagation. The software is designed for both Linux and Windows operating systems, making it accessible to a broad range of hams. It presents a concise overview of solar activity, which is essential for planning DX operations and understanding band openings and closures across the HF spectrum. Operators can utilize the displayed solar flux index, K-index, and other relevant parameters to make informed decisions regarding their operating times and target bands, optimizing their chances for successful long-distance contacts.

A complete DIY Raspberry Pi Weather Station including software, capable to read wind speed, wind direction, rain gauge and with a temperature and humidity sensor along to a camera.

Sound Byte is a voice keyer for contests as well as general ham radio use. Windows and Mac, commercial by Black Cat Systems

Provides a robust contest logging solution for Windows users, supporting over **500** distinct amateur radio contests. The software integrates _digital modes_ and offers comprehensive logging features essential for competitive operating. It facilitates efficient entry, real-time scoring, and post-contest log submission in standard formats. Developed and maintained by K1LZ and a dedicated team, DXLog.net is provided free of charge to the amateur radio community. Users can access support and report bugs via the dedicated groups.io forum, ensuring ongoing development and user assistance. The platform includes detailed release notes and an archive of support information, aiding operators in maximizing their contest performance.

UR5FCM Log provides a centralized logging solution for amateur radio operators, designed to manage daily radio communications and integrate various digital modes. This software functions as a primary working center for a radio station, facilitating the recording and management of QSOs across different operating aspects. Since version 1.1.61, UR5FCM Log has incorporated enhanced features for digital mode operations, specifically supporting RTTY, BPSK, and SSTV. The application aims to streamline the logging process, offering tools for QSL management and general station record-keeping. It is developed for the Windows operating system, providing a graphical user interface for ease of use. The software includes capabilities for tracking various contact details and supports common amateur radio data formats for log exchange. Its development history spans from 2002 to 2005, with Igor I. Krinetsky credited as the author.

A Windows based Spectral Analysis/Receiver Program primarily used with the SDR-IQ, SDR-14 , SDR-IP, RF capturing hardwares

GJTracker is a antenna tracking program for windows written to be compatible with WSJT

TNC virtual phone modem driver for windows 95, known also as TFSlip95

This article describes the characteristics of the Windom antenna and shows the results of several simulations made with MMANA-GAL, covering models optimized for the 20 m, 40 m and 80 m bands.

Win92 - windows-based data management for the pro-92/2067 trunking scanner

Displays amateur radio grid squares worked from third-party logging programs, providing a visual representation of contacts on a world map. This Windows application uses colors to differentiate up to four bands concurrently, calculating the total number of grid squares worked per band. It reads plain-text log files, including fixed-width, character-delimited, ADIF, and Cabrillo formats, dynamically updating the map as log files are saved during contests or general operation. Primarily targeting **VHF** and above operators, WorkedGrids aids in grid square collection for contesting and awards. The software offers a fixed-resolution continental viewpoint, zoom-in capabilities, and supports printing or copying the map to the clipboard. It operates on Windows 95 through Windows 11, requiring minimal CPU and RAM, and features a non-invasive installation. The program has undergone several updates, with version 7 released on March 3, 2024, addressing minor fixes and improving stability.

Antenna Rotor Control Software for Windows and Linux is a companion project to the arduino rotor controller.

A user group established by John Wiseman G8BPQ/GM8BPQ and Ron Stordahl AE5E (ex N5IN) for BPQ32 - AX.25 NET/ROM compatible node software for Windows.

Windows program for analyzing vertical antennas. This program shows the resistance and reactance to be expected looking into a cylindrical metallic tower over a perfect ground. It gives a useful approximation of the values to be expected in a real-world situation.