Open Source BSD Ham Radio Software

The WSJT project implements software for amateur radio communication using state-of-the-art digital techniques. Typical applications involve "DXing" at LF, MF, HF, and VHF+ frequencies, including meteor scatter and EME ("moonbounce"). Major emphasis is placed on weak-signal techniques. Summary Program Descriptions: WSJT-X supports the communication protocols FST4, FT4, FT8, JT4, JT9, JT65, Q65, MSK144, WSPR, FST4W, and Echo, each optimized for different sorts of radio-wave propagation. MAP65 is designed for EME an VHF and higher frequencies. It provides a panoramic, polarization-matching receiver for the Q65 and JT65. modes. Programs WSJT and WSPR are interesting primarily for historical reasons. They are superseded by WSJT-X.

Fldigi is a modem program for most of the digital modes used by radio amateurs today: CW, PSK, MFSK, RTTY, Hell, DominoEX, Olivia, and Throb are all supported. It can help calibrate a sound card to a time signal and do frequency measurement tests. NOTICE: You must proceed to the Files section to locate the correct fldigi, flrig etal download for your particular operating system. Do not blithely use the big green Download button! Use the "Files" menu item or the "Browse All Files" link.

The Hamlib project's purpose is to develop flexible and portable shared libraries that offer a standardized API to control any radio oriented equipment through a computer interface.

Client software for users of the Automatic Packet Reporting System amateur radio network.

Gpredict is a real-time satellite tracking and orbit prediction application. Gpredict can track an unlimited number of satellites and display the data in tables and various graphical view.

A cross platform Python frequency scanning GUI for USB TV dongles, using the OsmoSDR rtl-sdr library. In other words a cheap, simple Spectrum Analyser. More information can be found at: http://eartoearoak.com/software/rtlsdr-scanner An installer and standalone versions for Windows are located here: https://github.com/EarToEarOak/RTLSDR-Scanner/releases Sources are available on GitHub: https://github.com/EarToEarOak/RTLSDR-Scanner ** The up to date installer is no longer maintained on this site and can now be found at https://github.com/EarToEarOak/RTLSDR-Scanner/releases **

Gqrx is a software defined radio receiver powered by GNU Radio and the Qt GUI toolkit. It can process I/Q data from many types of input devices, including Funcube Dongle Pro/Pro+, rtl-sdr, HackRF, and Universal Software Radio Peripheral (USRP) devices.

Qtmm is a simple AFSK1200 decoder that uses the computer's sound card for input. It can be used to decode packet radio, APRS and telemetry from amateur radio satellites.

Open source libraries and utilities to support using digital signatures for Amateur radio QSL information.

A software gps simulator, providing TCP/IP, UDP, http and serial port connectivity in NMEA 0183, XML or user defined output format. Usable for testing all kinds of GPS applications. Can playback pre-recorded GPS files with NMEA output.

A Smith charting program. You can enter either discrete components or transmission lines, see the results on screen and/or generate Postscript output. Component values can be changed numerically or using scrollbars.

Convert text to International Morse Code. Input is ASCII text. Output can be: - . -..- - on the console, raw 8bit PCM suitable for piping to /dev/audio, .wav files or even (mp3|ogg). Good for headlines on your MP3 player or code practice.

Voice over IP (VoIP) software specifically for ham radio operators. The primary purpose is to use the Internet to link Ham repeaters with a secondary purpose of providing remote access for users. Compatibility with EchoLink and IRLP is a goal.

Mirror directly approved by Phil Karn, KA9Q. The KA9Q NOS TCP/IP package began life way back in 1985 on a surplus Xerox 820 computer board running CP/M with a 4 MHz Zilog Z-80 CPU, 64KB of RAM and a 8" floppy drive holding all of 243KB. Later, it moved to the IBM PC with the 8088 and 80286 CPUs running MS-DOS. KA9Q NOS was only the second known implementation of the Internet protocols for low-end computers. Unlike PC/IP, KA9Q NOS could simultaneously act as an Internet client, a server and an IP packet router, and handle multiple client and server sessions. KA9Q NOS attracted many contributors and became widely used throughout the 1980s and 1990s in amateur packet radio and various educational projects. In a way, it was the Linux of its day. KA9Q NOS became the basis for several low-end commercial dialup terminal servers and routers. It influenced the development of the Internet protocols and implementations, including the Linux kernel.

aprsd is a server daemon that provides Internet gateway and client access to amateur radio APRS packet data.

A handy stand-alone GTK+ client for accessing your favorite DX Cluster or Reverse Beacon Net server via telnet over TCP/IP.

CWStudio is a portable almost library-independent and computationally efficient generator of CW signals for telegraphy training purposes. It can create a sound with maximum similarity to the real air, simulating many difficulties.

The Ground Station Software Suite projects aims at providing free, useful software tools for ham radio operators. Currently, this projects hosts the Grig communication radio control. The source repository has been moved over to github.

A modular console-oriented amateur radio AX.25 keyboard to keyboard chat and PBBS program using Linux's AX.25 stack. Includes support for multiple concurrent connected sessions, a unconnected (UI) message screen, and an automated packet message client

NOTE: Code commits are FROZEN on SourceForge: New code is now at <http://github.com/Xastir/Xastir>. Real-time tracking & messaging of stations via radio/internet APRS data streams, w/125 map formats supported. Linux/FreeBSD/Solaris/MacOSX/Windows in any of 7 languages. Can also be used for mobile mapping w/GPS. MAILING LISTS ARE AT: PROJECT->WEB SITE.

Qthid is a simple controller application for the Funcube Dongle Pro and Pro+ software defined radio receivers. It is written using the Qt SDK and is available for Linux, Windows and Mac OS X.

Digital Speech Decoder and xMBE codec library - To decode various xMBE based, QPSK, C4FM modes such as P25 Phase 2 (TDMA), MotoTRBO, ProVoice, NexEDGE and others..

hfterm - linux ham radio soundcard digimode program, can monitor and transmit PACTOR I (unique !), also AMTOR, GTOR, RTTY. Based on hfkernel by Tom Sailer, with graphic interface (gtk+), spectrum display, logbook, textmacros, English and German help. Note: I do not maintain it any more so I am happy to announce what Jaroslav Skarvada <jskarvad@redhat.com> wrote to me: "... I patched it [2] to compile and run on current Linux distros and on non x86 machines. I am testing it now, it seems to work (somehow), but it may need more love. I would like to package it into Fedora. Do you accept patches? thanks & regards Jaroslav [1] http://hfterm.sourceforge.net/ [2] https://github.com/yarda/hf/commits/master "

Acarsdec is an open source, multi-channels realtime ACARS decoder for Linux. It features : - up to four channels decoded simultaneously - error detection AND correction - input from sound file , alsa sound card or software defined radio (SRD) via a rtl dongle (http://sdr.osmocom.org/trac/wiki/rtl-sdr) or airspy (http://www.airspy.com) - could send decoded acars to a server via UDP in planeploter format or its own dedicated format. The 4 channels decoding is particularly useful with the rtl dongle. It allows to directly listen simultaneously to 4 different frequencies , with a very low cost hardware. Since version 3.0, acarsdec comes with acarsserv : a database backend program to store received acars messages.

Tampa Network Operating System (TNOS) is an Amateur Radio application providing a BBS, chat, and many other internet servers. It has been in development since 1991 and is used world-wide. The current release (3.0) is ONLY available (at this time) via