Ham Tools

Online Tools

https://hamalert.org/

HamAlert is a system that allows you to get notifications when a desired station appears on the DX Cluster, the Reverse Beacon Network, SOTAwatch, or PSK Reporter. There is no need to manually check these resources if you’re looking for a specific callsign, DXCC, CQ zone, IOTA island, SOTA summit, or WWFF reference.

You can receive alerts via Email, Push notification, SMS, or URL GET/POST. You can filter spots by various criteria, including:

DXCC (actual and callsign home DXCC)	Continent
Callsign	Band
IOTA group reference	Mode
SOTA summit reference	Time and days of the week
WWFF division/reference	Source
CQ zone	Spotter callsign and DXCC

Furthermore, you can set limits on the number of alerts within a specific time, preventing duplicate notifications. However, you will still receive alerts if, for example, the station changes to a different frequency.

http://websdr.org/

A WebSDR is a Software-Defined Radio receiver connected to the internet, allowing multiple listeners to tune in simultaneously. SDR technology enables all listeners to tune independently and thus listen to different signals, unlike many classical receivers already available online.

Most WebSDRs operate similarly and incorporate the same options and features. To learn more about how to use WebSDR, see the User Guide.

http://beta.reversebeacon.net/main.php

The Reverse Beacon Network (RBN) is a revolutionary new idea. Rather than scanning the HF bands to look for beacons and determine propagation, the RBN utilizes a network of volunteer stations that listen on the bands and report the stations they hear, when, and how well.

To use the RBN, call CQ (phone, CW, or digital), and the RBN force of amateur listeners will report where propagation is best from your location and how well your signal was heard. Pretty ingenious idea!

https://www.voacap.com/

VOACAP is free, professional, high-frequency (HF) propagation prediction software from NTIA/ITS, originally developed for Voice of America (VOA). Using the many graphs and data points, the ham operator can now know, in advance, the probability of making contacts in a specific part of the world.

Originally designed to help assess the range of VOA transmissions, this utility is a must-use for those dx hunters looking for elusive contact points.

https://www.dxfuncluster.com/idioma.php?newlang=english

As the website name implies, this resource is a comprehensive list of DX being reported from all around the world. Over 30,000 operators use the system regularly, providing excellent coverage for DX spots. If you’re looking for specific call prefixes or areas of the globe to work, this is a great place to start.

https://priyom.org/

This isn’t so much a ham radio tool as it is an SQL monitoring service for finding, identifying, and listening to “number stations.” What is a number station? A numbers station is a shortwave radio station characterized by broadcasts of formatted numbers. These, at times elusive transmitters, are believed to be passing sensitive data using number codes and ciphers to intelligence officers operating in foreign countries. Some real spy vs. spy communications!

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Software

Winlink Express

Winlink Express is the official client software for the Winlink global messaging system, which allows licensed amateur radio operators to send and receive email over HF, VHF, or UHF—without the need for internet infrastructure. It supports various transmission protocols, including VARA, ARDOP, and PACTOR, and can integrate with GPS for location-based services and mapping.

For emergency communications (EmComm), maritime use, or off-grid messaging, Winlink Express is an essential tool. It enables operators to exchange forms, weather reports, ICS messages, and general email using only their radio and a soundcard modem. In disaster scenarios where the internet is down, Winlink ensures reliable, global connectivity.
Download: https://www.winlink.org/WinlinkExpress & Winlink FAQ

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Log4OM

Log4OM (Log for Old Men) is a modern, full-featured amateur radio logging application designed for ease of use without sacrificing power. It supports integration with online callbooks, cluster spotting networks, QSL services such as LoTW and eQSL, and awards tracking for DXCC, IOTA, and other entities. It also offers real-time rig control through OmniRig and CAT interfaces, allowing seamless interaction with most modern transceivers.

For ham operators, Log4OM serves as a central hub for organizing contacts, tracking DX activity, and managing both digital and voice operations. Its intuitive interface and active development community make it a top choice for both casual operators and serious DXers. Whether you’re contesting, chasing awards, or just enjoying ragchewing, Log4OM helps ensure every contact is logged, confirmed, and accessible. Download: https://www.log4om.com/download/, Users Manual

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Ham Radio Deluxe (HRD Logbook)

Ham Radio Deluxe is a comprehensive suite that includes rig control, digital modes, satellite tracking, and an advanced logbook. The HRD Logbook is particularly powerful, offering detailed QSO management, customizable fields, and full integration with digital mode tools, such as the DM-780. It supports automated QSL uploads and downloads, award tracking, and seamless interaction with online databases and clusters.

For ham radio operators seeking an all-in-one solution, HRD streamlines operations and enhances station efficiency. Its polished interface and strong manufacturer support make it ideal for both beginners and seasoned operators. From managing QSOs to running digital modes with ease, HRD simplifies station management while boosting your operating potential.
Download: https://www.hamradiodeluxe.com/downloads/

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N3FJP’s Logging Program (Amateur Contact Log)

N3FJP’s Amateur Contact Log (AC Log) is a popular, easy-to-use logging program designed for general amateur radio operating. Developed by Scott Davis, N3FJP, this software provides seamless support for logging contacts across all bands and modes. It includes real-time rig control, integrated LoTW and eQSL uploads/downloads, award tracking (DXCC, WAS, IOTA, etc.), spotting network integration, and customizable fields to tailor the interface to individual operator preferences.

What sets AC Log apart is its balance of simplicity and functionality. The clean user interface makes it ideal for beginners, while its advanced features satisfy seasoned operators. N3FJP also offers a suite of contest-specific logging programs (e.g., Field Day, Sweepstakes, CQ WW) that integrate with AC Log for centralized contact management. Whether you’re working a casual net, DX hunting, or participating in contests, AC Log provides an efficient, reliable, and intuitive logging experience that scales with your skills and station needs. Download: https://www.n3fjp.com/

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N1MM Logger+

N1MM Logger+ is the go-to software for amateur radio contesting. It supports virtually every major contest format worldwide and interfaces with most transceivers for logging, frequency tracking, and real-time scoring. Its efficient keyboard-driven interface is optimized for high-speed operation, and it integrates with CW, voice, and digital contesting tools.

Contesters greatly benefit from N1MM’s ability to automate tasks, track multipliers, and analyze performance in real-time. It reduces errors, speeds up logging, and helps maximize score potential during contests. Whether you’re operating solo or in a multi-operator environment, N1MM Logger+ is a trusted tool for getting the edge in competitive amateur radio.
Download: https://n1mmwp.hamdocs.com/downloads/, Users Manual

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DXKeeper

DXKeeper is part of the DXLab Suite, focusing on DX-oriented logging and QSL management. It supports integration with electronic QSL services (LoTW, eQSL), automated ADIF import/export, and keeps detailed records of worked and confirmed entities, islands, zones, and other award criteria. Its customizable filters and robust search tools make managing large logbooks easy.

For DX chasers, DXKeeper offers precise tools to track progress, identify needed contacts, and ensure timely confirmations. Its synergy with other DXLab components makes it especially powerful in multi-app setups. If you’re chasing rare entities or managing a long list of confirmed QSOs, DXKeeper is an indispensable companion in your pursuit of DX excellence.
Download: https://www.dxlabsuite.com/download.htm, Getting Started Guide

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Digital Modes

WSJT-X

WSJT-X is the definitive software for weak signal communication, developed by Nobel Laureate Joe Taylor, K1JT. It supports digital modes such as FT8, FT4, JT65, and WSPR, which are specifically designed to facilitate reliable contacts under poor propagation conditions and low power. The software uses advanced error-correcting protocols that allow contacts even when signals are below the noise floor.

Ham radio operators widely adopt WSJT-X for its ability to make QSOs when voice or other digital modes fail consistently. FT8, in particular, has transformed HF operation by enabling rapid, low-power QSOs worldwide—even with modest antennas. For operators in urban noise environments or during solar minimums, WSJT-X opens doors to global communication that would otherwise be impossible.
Download: https://wsjt.sourceforge.io/wsjtx.html, Users Manual

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FLDigi

FLDigi (Fast Light Digital Modem Application) is a versatile soundcard-based digital modem program that supports a wide array of modes, including PSK31, RTTY, Olivia, Contestia, MFSK, and more. It interfaces with most rigs and logging programs and can be configured for emergency communications through integration with tools like FLMsg and FLAmp.

FLDigi is a must-have for operators who want flexibility across traditional digital modes. It’s especially valuable for keyboard-to-keyboard chats, digital nets, and emergency communications where robustness and accuracy are critical. Whether you’re operating HF, VHF, or UHF, FLDigi offers a complete digital toolbox for real-time communication.
Download: https://sourceforge.net/projects/fldigi/files/fldigi/, Users Manual

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JS8Call

JS8Call builds on the robustness of the FT8 protocol, adding the ability to send longer, free-form messages in a keyboard-to-keyboard style. It supports directed calling, message storage, relay forwarding, and station heartbeats, making it ideal for low-bandwidth, asynchronous communication, even in off-grid or emergency scenarios.

For hams interested in resilience and digital messaging beyond minimal QSOs, JS8Call is uniquely suited to tactical and survival communication. Operators can send messages even hours apart, leave beacons running unattended, and create mesh-like networks. It’s the perfect digital mode for those who want the reliability of FT8 with the conversational flexibility of traditional modes.
Download: http://files.js8call.com/2.2.0/js8call-2.2.0-win32.exe or http://files.js8call.com/latest.html
Users Manual

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VARA / VARA FM

VARA is a high-performance digital modem that utilizes advanced modulation techniques to achieve near-PACTOR speeds over HF using only a standard sound card. It’s designed primarily for use with Winlink, but can also be used in standalone applications. VARA FM is its VHF/UHF counterpart, optimized for FM packet infrastructure.

For emergency communicators and Winlink users, VARA is a game-changer, offering fast, reliable email over radio without expensive proprietary modems. It enables ham operators to send forms, text, and attachments globally or within local networks. Its combination of speed, efficiency, and affordability makes it one of the most valuable tools in digital HF/VHF communication today.
Download: https://rosmodem.wordpress.com/

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SDR (Software-Defined Radio)

SDR++

SDR++ is a modern, cross-platform software-defined radio (SDR) receiver that supports a wide variety of SDR hardware, including RTL-SDR, Airspy, HackRF, and SDRplay. Designed with a modular architecture and a responsive user interface, SDR++ allows users to visualize and tune across wide frequency spans with minimal system resources. Its built-in support for plugins and streaming over the network makes it highly customizable and powerful.

For ham radio operators, SDR++ is an excellent tool for spectrum monitoring, signal analysis, and discovering new stations. It’s ideal for use as a panadapter alongside your transceiver or as a standalone receiver for shortwave listening. With its open-source codebase and frequent updates, SDR++ delivers top-tier performance without the clutter.
Download: https://github.com/AlexandreRouma/SDRPlusPlus, Users Guide

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SDRangel

SDRangel is a comprehensive SDR application that supports both receive and transmit functions for a wide range of hardware. It offers advanced DSP features, digital voice decoding, satellite telemetry, and integration with digital modes. With its modular plugin system and support for high-performance hardware, SDRangel is designed for technically inclined users who seek complete control over their SDR environment.

Ham radio operators benefit from SDRangel’s ability to handle complex digital modulation schemes and transmit capabilities, making it ideal for experimentation and advanced communications. From decoding digital voice modes like DMR and D-STAR to tracking satellites and building custom signal processing chains, SDRangel is a powerful asset in any modern shack.
Download: https://github.com/f4exb/sdrangel

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CubicSDR

CubicSDR is a lightweight, beginner-friendly SDR application that supports many popular SDR devices, including RTL-SDR, HackRF, and SDRplay. It features an intuitive waterfall display, AM/FM/SSB/WFM demodulation, and easy tuning controls. The software is cross-platform and designed for plug-and-play simplicity.

For ham operators just getting started with SDR or needing a straightforward tool for monitoring bands, CubicSDR offers a clean and effective solution. It’s excellent for band exploration, signal monitoring, and casual listening, with a minimal learning curve. Its simplicity and broad hardware support make it a reliable go-to for everyday SDR needs.
Download: https://cubicsdr.com/

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HDSDR

HDSDR is a classic Windows-based SDR application renowned for its efficient performance and wide compatibility with popular SDR hardware, including RTL-SDR and SDRplay. It features a dual waterfall/spectrum display, IF recording, CAT control, and support for external decoders. HDSDR also allows integration with third-party software, such as OmniRig, for transceiver control.

Ham radio operators value HDSDR for its stability, low system overhead, and solid core features. It’s a perfect companion for transceivers with IF outputs or as a standalone shortwave receiver. For those who prefer a traditional interface with proven functionality, HDSDR remains a reliable and well-supported SDR solution.
Download: http://www.hdsdr.de/

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Propagation & Forecast Tools

VOACAP

VOACAP (Voice of America Coverage Analysis Program) is a professional-grade HF propagation prediction tool initially developed for the Voice of America. It utilizes complex ionospheric models to estimate signal paths and the probabilities of successful communication between two points, taking into account time, frequency, solar conditions, and antenna configuration. An online version is available for quick predictions, while the downloadable version offers deeper analysis.

Ham radio operators use VOACAP to plan DX contacts, contests, or daily schedules by predicting the best frequencies and times for communication. Whether you’re chasing new countries or ensuring coverage for emergency nets, VOACAP helps take the guesswork out of propagation planning.
Download: https://www.voacap.com/download.html, User Manual

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W6ELProp

W6ELProp is a classic, easy-to-use HF propagation prediction program that offers reliable forecasts of signal strength and reliability for various bands and times. Based on user input for location, solar data, and desired frequencies, it generates propagation charts and tables that show expected performance worldwide.

Although simpler than VOACAP, W6ELProp is useful for ham operators who want fast and practical propagation guidance without a steep learning curve. It’s lightweight, quick to set up, and great for planning SSB, CW, or digital QSOs. It remains popular among operators who prefer tried-and-true software with minimal system requirements.
Download: http://www.qsl.net/w6elprop/W6ELPropSetup.exe

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DX Toolbox

DX Toolbox is a feature-rich utility that consolidates real-time space weather data, solar indices, geomagnetic conditions, and propagation forecasts into a single, convenient interface. It includes tools such as greyline maps, MUF/layer prediction, sunspot counts, and ionogram analysis—updated live from online sources like NOAA and WWV.

For hams who want to stay informed about solar and ionospheric conditions that impact HF performance, DX Toolbox is an invaluable resource. Whether you’re chasing rare DX, working contests, or setting up a sked, the app helps you know exactly when and where to tune.
Download: http://www.blackcatsystems.com/software/dxtoolbox.html

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