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DXFile is a Windows shareware application designed for amateur radio operators, providing comprehensive log management capabilities. The software, developed in Pascal, facilitates real-time and deferred QSO entry, automatically populating fields like frequency, mode, and DXCC country based on user input and system time. It includes features for searching, modifying, and deleting QSO records, with options to sort logs by date, callsign, or entry order. The program offers various printing functions, including QSL card labels in multiple formats, and can generate standard logbook printouts. Beyond basic logging, DXFile integrates modules for tracking progress towards major operating awards such as DXCC, _IOTA_, WAZ, WAS, DDFM, and DIFM. It provides detailed summaries of contacts by band and mode, including graphical representations of HF traffic. A dedicated QSL Manager module assists in processing received QSLs, allowing users to mark confirmations and print multi-line QSL labels. The application also incorporates a DXCC list viewer, which can be updated to ensure accurate country and zone data for logging and award tracking. A distinctive feature is its HF propagation prediction module, which calculates optimal frequencies and signal levels for paths between **250 km** and **6000 km**, considering both E and F layer ionospheric conditions. This module helps operators determine the best times for long-distance contacts. Additionally, DXFile includes a _Web-Cluster_ interface, enabling connection to various DX cluster servers like DXLITE, DXSCAPE, and NC7J for real-time spot information.

Zenith Tracker offers real-time satellite tracking, pass predictions, and radio hardware integration for ham radio operators. The platform includes an interactive world map showing satellite positions, footprints, and ground tracks, as well as a polar radar visualization for detailed pass analysis. Users can view upcoming passes, set filters, and receive notifications. Integration with CSN Technologies S.A.T Hardware and QTRigDoppler allows for automatic radio control, antenna tracking, and transponder management. The platform also offers APRS message interface, grid square-based location input, and API integration for rover activations. Zenith Tracker is recommended for both general users and those needing advanced hardware integration.

A Magnetic Loop Controller project details the construction and operation of an automatic tuning system for magnetic loop antennas, which are resonant circuits using an oversized inductor and an adjustable capacitor. The system employs a stepper motor to precisely adjust the variable capacitor, maintaining optimal resonance across the HF bands. It integrates with various transceivers, including _Icom_, _Kenwood_, and _Yaesu_ models, by monitoring the VFO frequency and adjusting the loop's tuning accordingly. The project provides comprehensive building instructions, a PowerPoint-style presentation, and the full source code for the controller's firmware, enabling hams to replicate and customize the design. The controller's firmware offers diverse functionality, including automatic frequency tracking, manual tuning, and SWR monitoring, significantly enhancing the operational efficiency of magnetic loop antennas, particularly for QRP and portable operations. The design emphasizes accurate capacitor positioning, crucial for achieving low SWR and maximum radiated power. Comparisons with manual tuning methods highlight the benefits of real-time adjustment, especially when operating across different bands or making frequent QSYs. The project's detailed documentation and available source code facilitate experimentation and modification by advanced builders, allowing for tailored performance characteristics.

KlaTrack is a Windows-based software application designed to assist amateur radio operators with satellite communication by predicting spacecraft visibility. It provides a simple interface to determine when specific satellites will be above the local horizon, a critical factor for successful two-way contacts via amateur radio satellites. The program processes _Two-Line Element_ (TLE) data to calculate orbital mechanics, offering a practical tool for satellite operators to plan their operating windows. It supports real-time tracking and displays essential pass information. This utility simplifies the complex task of satellite tracking, allowing operators to focus on making contacts rather than manual orbital calculations. While specific gain figures or distances are not quantified, the software's core function directly supports achieving successful satellite QSOs by providing precise pass predictions. It is particularly useful for operators engaging in activities like working the International Space Station (ISS) or other low-Earth orbit (LEO) satellites, where short pass times and precise timing are crucial for maximizing contact opportunities.

Ground Station offers real-time satellite tracking and radio communication capabilities, primarily for amateur radio operators engaged in satellite operations. It utilizes **TLE data** from sources like CelesTrak and SatNOGS for precise orbital prediction and integrates with various SDR devices, including RTL-SDR, SoapySDR, and UHD/USRP radios, to receive live signals. The software provides automated antenna rotator control and **Hamlib-compatible** rig control with Doppler correction, crucial for maintaining signal lock on fast-moving LEO satellites. It supports IQ recording in SigMF format and decodes several digital modes such as SSTV, FSK, GFSK, GMSK, and BPSK with AX25 USP Geoscan framing. Dedicated interfaces are available for satellite tracking, SDR waterfall displays with live transcription and packet decoding, and telemetry packet viewing. Users can manage TLE data synchronization and SDR hardware, along with browsing decoded outputs through an integrated file browser. An observations dashboard and DSP topology view further enhance the operational experience, providing comprehensive tools for monitoring and analyzing satellite passes.

Spotty leverages Philip Gladstone’s pskreporter.info data, delivered via an MQTT broker by Tom Fanning (M0LTE), to offer a responsive web application for visualizing propagation. The Map View presents a default visualization (grid AA00 / callsign MY8CALL) and distinguishes signal types: small spots for signals heard by a location, large spots for transmissions from a location, and teardrop markers for transmissions from the monitored callsign. Clicking a spot reveals detailed signal data in an overlay. The application includes a Log View for raw spot data and a Settings tab for customization. Users can filter tracking by specific Callsign or Grid, with preferences saved to the browser. A notable feature is the Time to Live (TTL) setting, adjustable from the default 60 seconds, which controls spot visibility duration to manage map clutter during high-traffic periods. The tool provides a clear, logic-driven interface for real-time signal monitoring.

SkyRoof is an open-source, 64-bit Windows application designed for amateur radio operators and satellite enthusiasts, combining satellite tracking and Software Defined Radio (SDR) functionality in a unified platform. The software provides real-time satellite tracking, pass predictions, and visual representations through Sky View, Earth View, and Timeline displays. It features an SDR-based waterfall display covering VHF/UHF satellite segments with Doppler-corrected frequency scales, automatic satellite labeling, and visual tuning capabilities. SkyRoof supports various SDR devices (Airspy Mini, SDRplay, RTL-SDR), external transceiver CAT control, and antenna rotator integration. The application automatically downloads satellite data from SatNOGS and other sources, offers voice announcements for satellite passes, and includes comprehensive frequency control with Doppler tracking, manual corrections, and RIT functionality for enhanced satellite communication operations.

Unveil the secrets of efficient Magnetic Loop Antenna control systems, eliminating the hassle of frequent retuning. With real-time tracking and compatibility with various transceivers, including popular models from Elecraft, ICOM, Kenwood, and Yaesu, this controller ensures seamless frequency adjustment. Explore its high-resolution stepper motor and versatile communication capabilities, revolutionizing amateur radio operation.

Examines current amateur radio satellite operations as of May 2026, providing a practical overview for hams interested in making their first satellite QSOs. The resource differentiates between Low Earth Orbit (LEO) satellites, such as the _ISS_, SO-50, RS-44, FO-29, AO-7, and GreenCube, and the geostationary QO-100. It highlights the distinct operational requirements for each, noting that LEO birds necessitate real-time tracking, antenna rotation, and Doppler compensation. The article emphasizes the critical practice of listening before transmitting and outlines methods for monitoring QO-100 in real time via the Goonhilly Earth Station WebSDR. It also covers tracking LEO satellites using tools like N2YO.com, Heavens-Above, and amsat.org/status. The author's experience with these platforms informs the guidance on equipment considerations and operating practices, ensuring hams understand the nuances of satellite communication in 2026, including the significant impact of QO-100 since its 2019 launch.

DecoAlert 1.0 Beta is a companion application designed to enhance the digital mode operating experience, specifically for FT8, FT4, and FT2. It operates by monitoring UDP data streams from primary decoding software like _Decodium_ and _WSJT-X_ on port 2237. The software provides real-time, priority-based audio alerts using WAV sounds for various conditions, including All Time New Ones (ATNO), new DXCC entities per band/mode, user-defined watchlist callsigns, new Maidenhead grid squares, and LoTW-active stations. It also highlights previously worked stations (B4) and integrates live DX spots from Telnet clusters, offering a comprehensive suite of tools for serious digital mode operators. The application features a built-in SQLite database for tracking worked stations and integrates with LoTW user lists to identify confirmed contacts. A DX Cluster client supports multiple Telnet servers, providing a broad view of propagation. PSKReporter statistics are available by band and mode, offering insights into signal paths. The QSO log viewer includes search and filter capabilities, while an _OpenStreetMap_ (OSM) interface visualizes spot locations, aiding in situational awareness. DecoAlert requires Windows 10/11 (64-bit) and compatible digital mode software configured to send UDP data.

DX Data provides a unified view of real-time DX spots, aggregating data from **DXSpider**, the **Reverse Beacon Network (RBN)**, and PSK Reporter. This online service offers advanced filtering capabilities, allowing amateur radio operators to refine spot displays by DXCC entity, band, mode, CQ zone, and continent. It addresses the challenge of sifting through numerous DX spots by presenting a consolidated stream, enabling DXers to efficiently identify active stations across various bands and modes. The platform integrates with Club Log, which assists in fine-tuning band-entity combinations based on a user's logging history, thereby reducing irrelevant spot noise. Key features include DX email alerts, PSK Reporter tracking, and a custom watchlist for monitoring specific stations or regions. The service also incorporates a live news feed from DX World, providing current information relevant to the DXing community. This design aims to streamline the DX spotting process, offering a responsive interface for identifying operating opportunities.

Approximately 100 MeshCom nodes are visualized in real-time on a geographical map, providing a dynamic overview of the LoRa mesh network. This resource, hosted by _OE1KFR_, details node positions, telemetry data, and message traffic. Users can measure distances between two selected nodes, view text messages with callsign, destination, and gateway information, and access position data including latitude, longitude, and altitude. The platform supports filtering by regions such as Europe, USA, and Asia, allowing operators to focus on specific geographical areas. The detailed node list table presents comprehensive status information for each node, including gateway callsign, firmware version, hardware type, and environmental telemetry like temperature, pressure, humidity, and CO2 levels. This granular data enables operators to monitor network health and individual node performance, facilitating troubleshooting and optimization of MeshCom deployments. The map interface enhances situational awareness for those engaged in LoRa mesh networking.

SAT_EXPLORER is a versatile software for tracking the Moon, Sun, and artificial satellites while controlling various antenna interfaces. Compatible with Windows XP and later (32/64-bit) and multilingual (English, French, German, Italian, Spanish), it integrates seamlessly with TRX-Manager for transceiver control. SAT_EXPLORER computes satellite and Moon positions with high precision, calculates EME Doppler shifts, and uploads real-time satellite positions and coverage maps to your personal web pages. Linux/Ubuntu users can run it using WINE or CROSSOVER.

This is a group to exchange views, help and ideas for improvement of the Automatic Magnetic Loop Controller, as described at VE2AO web site. The Automatic Magnetic Loop Controller tunes a Magnetic Loop Antenna in real time, tracking every movement of the Transceiver VFO, by polling the Transceiver for frequency information and calculating an appropriate Capacitor position accordingly. The Controller can also perform Automatic Tuning based on SWR measurement.

Cloudlog Helper addresses the need for streamlined, automated logging of amateur radio contacts, particularly for operators utilizing digital modes like FT8 or those with limited system resources. This utility syncs real-time rig data and QSO information to various logging platforms, including _Cloudlog_ and Wavelog, supporting mainstream transceivers. It integrates seamlessly with popular digital mode software such as JTDX and WSJT-X, ensuring that contact details are captured and uploaded without manual intervention. Operators can compile the software themselves and configure essential settings, including their Maidenhead locator, Cloudlog server address, API key, and station ID. The application's design prioritizes efficiency and portability, making it a practical solution for hams who prefer automated logging processes. While an unofficial community project, Cloudlog Helper provides a robust framework for automating the often-tedious task of logging, supporting multiple logging services beyond its primary integration. It offers a direct method for hams to maintain accurate and up-to-date logbooks with minimal effort, potentially improving their DXCC or other award tracking by ensuring no QSO is missed.

Operating on the Automatic Packet Reporting System (APRS) network, this platform provides a real-time, visual representation of amateur radio stations globally. Users can track callsigns, locate nearby stations, and even send APRS messages directly from a web browser, all without requiring a login. The system integrates live APRS-IS data, presenting it in an intuitive, map-based interface that supports 11 different languages, making it accessible to a broad international audience. Beyond basic station tracking, the platform offers detailed per-station pages, including historical weather data and telemetry logs. This functionality extends to companion Android and iOS applications, which incorporate an RF / KISS-TNC mode, allowing mobile devices to interface directly with APRS via radio. My own field experience with similar APRS visualization tools confirms the utility of such a resource for situational awareness during events or simply monitoring local and regional ham radio activity. The inclusion of weather and telemetry history adds significant value for those interested in environmental data or remote station performance.

The aprs.fi Android application offers immediate, real-time access to APRS position information, weather reports, and telemetry graphs, allowing users to zoom and browse stations globally without delay. It includes features like callsign and address search with history, multi-station tracking, and map filtering for elements such as weather stations and AIS targets. The app also supports KML and GeoJSON overlay files for enhanced map visualization. Users can beacon their position directly to aprs.fi or connect wirelessly to a Bluetooth, BLE, WiFi, or USB-attached TNC for receiving and transmitting position beacons without an internet connection. The application runs on the robust and fast aprs.fi database, providing _Dark Mode_ support for improved ergonomics in low-light conditions and high-resolution graphics for modern displays, including the full APRS symbol set. While the core application is a one-time purchase, some advanced functionalities, such as APRS text messaging, a high-performance software DSP modem, and _APRS-IS_ beaconing with up to **10 callsign profiles**, require an additional "Extra Features" subscription. This subscription also unlocks RX iGate functionality and extended time ranges for map and graph views, expanding its utility for serious APRS operators.