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The Wanted Alive (TWA) by OH2BUA is an online DX cluster service specifically tailored for digital mode enthusiasts, presenting real-time DX spots with a unique ranking system. Unlike traditional clusters, TWA sorts spots by decreasing DXCC most-wanted ranking, allowing operators to prioritize rare entities. It integrates data from various sources, including PSK Reporter and RBN, to provide a comprehensive view of current propagation conditions for modes like FT8, FT4, and JS8. This approach helps DXers quickly identify and pursue high-value contacts, optimizing their time on the air. OH2BUA's TWA provides a practical application for serious DXers by filtering the noise and highlighting the most sought-after DXCC entities. The service's focus on digital modes reflects the growing popularity of these efficient, low-power communication methods, offering a specialized tool that complements general-purpose DX clusters. By presenting propagation information through the lens of DXCC rarity, TWA assists operators in achieving DXCC awards and improving their overall DXing efficiency, particularly during contests or limited operating windows.

Twigger is a very lightweight, free ham radio logger designed for Windows, offering seamless integration with transceivers via _TCI_ or OmniRig. This software stores all logged contacts in a SQLite database, with the flexibility to export daily ADIF files for import into a main logger or to send real-time QSO data via UDP in N1MM XML format. It also supports direct, real-time uploads to popular online logbooks like Clublog and QRZ.com, streamlining the logging process for active operators. The application has seen continuous development, with version 1.1.34 fixing an ADIF log importer bug and earlier versions adding crucial features like WSJT-X/JTDX UDP support. Author OE3IDE, Ernst, has incorporated user feedback, including ideas and testing from MW0LGE, to refine the software. Key enhancements include the transition to SQLite for data storage in version 1.1.32, allowing for easy import of previous Twigger ADIFs upon initial startup. The logger also features integrated DX cluster support, enabling users to send spots directly and query QRZ.com for callsign information, which is then cached to reduce redundant queries. The software's compact design and essential logging capabilities make it a practical tool for casual logging or as a secondary logger during contests, with the ability to handle **25 downloads** for version 1.1.34.

Demonstrates a cloud-based suite of tools for amateur radio operations, eliminating local software installation. The platform integrates a comprehensive logbook with import/export functionality, an _eMap_ application displaying DX spots, user locations, and grayline data, alongside a dynamic band map derived from DX cluster information. It also provides a _vQSL_ system for QSL management and a mailbox with QSO verification. Users can access a Web DX cluster to monitor spots and _DXCC_ status, or connect via Telnet using external programs like _Logger32_ or Ham Radio Deluxe. The cluster supports advanced spot filtering by QRG, spot call, spot from, and origin, with configurable mail alerts based on IARU zone filters. Additional features include a real-time chat for skeds, azimuth/distance calculations from a user's QTH (with QRA locator), a search engine for spot and logbook databases, a band status matrix, and a propagation tool for MUF calculations, leveraging data from N0NBH.

Demonstrates a **Progressive Web App** (PWA) approach to amateur radio logging, providing a platform-agnostic solution for hams. The resource details its core functionality, including offline callsign and reference lookups, auto-formatting for data entry, and integration with **POTA spots** and saved re-spots. It highlights support for various logging templates such as General, Contest, POTA, and Field Day, indicating its adaptability for different operating activities. The application emphasizes seamless log synchronization across multiple devices, eliminating the need for manual file transfers. It operates effectively both online and offline, with installation options available for full offline functionality on Windows, Android, iOS, macOS, and Linux, or direct use within any web browser. The documentation further outlines features like rig control and the continuous development of additional templates, positioning Smart Logger as a flexible and efficient tool for managing amateur radio contacts.

Demonstrates WSPR propagation activity, presenting observed data by reporter, band, UTC time, local time, and user-selected global destination areas. The application allows users to analyze WSPR spots from a live data server or import saved WSPRnet query files, bypassing the 10,000-row download limit by collecting individual band files for busy bands. Users can configure band preferences and destination modes, choosing between city radius or Maidenhead map grids for filtering path destinations. The interface provides options to start current-day live collection, a 7-day continuous archive, or load previously saved data to build the propagation matrix. Diagnostic information and archive history are accessible, alongside map setup controls for grid contrast and visibility. The tool supports both Path 1 and Path 2 map destinations, enabling detailed analysis of WSPR signal paths.

Ham radio communication in the VHF and UHF bands, which was previously dominated by analog Frequency Modulation (FM), is increasingly incorporating Digital Voice (DV) modes. DV transceivers digitize audio and offer benefits like as signal integrity, encoded caller ID, and bandwidth savings. Today D-STAR, DMR and Yaesu System Fusion (YSF) are popular DV formats, each with its own set of features but mainly incompatible with the others. Internet access with Voice Over Internet Protocol (VoIP) expands DV communication worldwide. Repeaters and personal hotspots expand DV capabilities, enabling seamless worldwide connections. However, implementing DV frequently necessitates learning new technologies and negotiating network complexity.

Operating a web-based DX cluster, this resource presents real-time amateur radio DX spots, facilitating contact logging and propagation analysis. It leverages the Spiderweb platform, offering users the ability to filter DX spots based on various criteria, including inclusion and exclusion rules. The interface integrates directly with QRZ.com for immediate callsign lookups, displaying flag icons for geographical context, and provides charts and statistics derived from spot data. Further enhancing its utility for DXers and contesters, the cluster includes direct links to MUF (Maximum Usable Frequency) maps and HamQSL solar condition reports. These external data sources provide critical propagation insights, assisting operators in making informed decisions about band selection and operating times. The service also offers Telnet access at dxc.sv5fri.eu:7300 for those preferring a command-line interface.

The International DX Amateur Radio Club provides a structured environment for amateur radio operators interested in long-distance communication. The club offers a variety of awards, including the DX Countries Award, DX United States Award, and DX Continents Award, among others. These awards recognize achievements in contacting stations across different geographical areas, such as Europe, Africa, South America, and Asia. The club also supplies resources like DX Spots, Grey Line Map, and Solar Data to assist operators in optimizing their communication strategies. The DX Code of Conduct emphasizes disciplined operating practices. Operators are encouraged to listen carefully before transmitting and ensure they have correctly identified the DX station's call sign. The guidelines advise against interfering with ongoing communications and stress the importance of patience, such as waiting for the DX station to complete a contact before calling. Operators are reminded to send their full call sign and avoid continuous calling, maintaining respect for fellow operators to foster a cooperative amateur radio community. DXZone Technical Profile: DX Awards | DX Code of Conduct | Grey Line Map

DXLog.net Cluster functions as a dedicated client application designed to enhance DXLog.net contest logging operations. It facilitates simultaneous connections to multiple DX cluster nodes, providing a consolidated view of DX spots. The software also supports integration with local CW skimmers, enabling real-time reception of CW signals and their automatic decoding into spots. The utility broadcasts UDP data across the local area network, allowing DXLog.net to receive and process these spots efficiently. A key feature includes CAT control integration, which automatically QSYs connected CW skimmers to the frequency of interest, optimizing spot acquisition. The system also incorporates duplicate spot filtering to reduce redundancy and offers blacklist management for unwanted callsigns or frequencies. Programmable commands and dynamic skimmer bandwidth control further refine its operation, adapting to varying band conditions and contest strategies. Automatic reconnection capabilities ensure continuous operation, maintaining reliable access to DX information crucial for competitive contesting.

Ham2K PoLo is an android Portable Logger, Support for Parks On The Air (POTA), Summits On The Air (SOTA), Field Day, Winter Field Day, Worldwide Flora and Fauna (WWFF) and more. Fast and efficient yet fully-featured: QRZ.com name lookups, QSO Maps, offline data files, contact rates, duplicate warnings, POTA spots, search parks nearby or by name, etc.

DXContest.org provides a real-time DX cluster, integrating advanced spotting capabilities with features like _propagation maps_, _PSKReporter_, and the _Reverse Beacon Network_. This platform enables radio amateurs to monitor DX activity, apply sophisticated filters to spot data, and even utilize CAT control for their transceivers directly through the web interface. The service is designed for immediate utility, offering free access without requiring user registration. Users can send DX spots, control their radio via CAT, and consult a contest calendar. The platform also provides traditional Telnet access for those preferring client-based cluster interaction. Developed by Pascual R. Salas Vidal, EA5WU, the service aims to be a comprehensive tool for real-time DX operations and contest participation, offering a blend of modern web features and classic cluster functionality.

DX web cluster that offers features for both registered and unregistered users. Unregistered users can view spots, filter by band and mode, search for callsigns, while registered users get all that plus the ability to submit spots, upload logs, see DXCC country status, antenna pointing info, real-time maps of spots, email alerts for DXCC countries on-air, and more. Basically, register for free to get the full DX cluster experience.

Provides access to a robust DX cluster node, G6NHU-2, running DX Spider software, which facilitates real-time amateur radio contact spotting across HF bands. This service is engineered for high reliability and low latency, ensuring rapid dissemination of DX spots from a global network of interconnected nodes. It features multiple redundant links to prevent data loss and maintain continuous operation, even if individual connections drop. The cluster integrates directly with the Reverse Beacon Network (RBN), allowing users to enable or disable skimmer spots for specific modes like CW, RTTY, FT8, and FT4. It also offers an extensive one-year spot history, significantly longer than most other DX clusters, which typically retain only a month of data. The node supports various lookup commands for callsign information, beam headings, QSL routing, and FCC database lookups, enhancing operational efficiency for DXers and contesters. Additionally, it permits self-spotting, a feature increasingly relevant in modern contests, and provides detailed instructions for connecting popular logging software such as N1MM+, HamRadioDeluxe, MacLoggerDX, LOG4OM2, Logger32, and N3FJP's Amateur Contact Log.

Use the official POTA spotting website to search for active parks. This is the official spotting website for POTA. You can see current activations. On the Activations page, you can see the registered activations.