Open Source Ham Radio Software

Updated 2026/01/24: Turn your PC into the ultimate shortwave radio. Skywave Linux is an X86, 64 bit live environment configured for accessing internet accessible software defined radio receivers. With this operating system, you may tune in popular stations or amateur radio, aeronautical, maritime, or other signals received at remote internet servers around the world. For a live map of the best KiwiSDR and WebSDR servers and a nice "click to tune" interface, Use the installed SDR-Map utility to find radio servers and listen from interesting places. Also, I have set up a self-updating SDR Map at https://rx.skywavelinux.com. An internet radio streamer application is also included for popular studio streams. Bring it up with keys [Super] + [S]. SDR software is configured to operate with popular plug-in devices, such as the RTL-SDR dongles, Airspy, and, HackRF radios. Skywave Linux is built on Debian Sid. It is primarily a live environment, but can be fully installed.

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.

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.

JOSAST ( Java Open Source Amateur Satellite Toolkit) is a set of java source code used for amateur satellite, hamradio and also astronomia activities ... Reusable package and complete software should be available.

KPSK - An easy to use PSK31 terminal program for amateur (ham) radio.

Linux Shared Library for Parsing Amateur Radio APRS Packets. Also includes basic TCP Connection library

Software Defined Radio Transceiver project is written in Python while using GNU Radio and USRP. The goal is to create a software HF transceiver with various modes. Go here for more info: http://apps.sourceforge.net/mediawiki/sdr/index.php?title=Main_Page

The FCC publishes pools of questions for each of the three Amateur Service (Ham Radio) license exams. Two of my programs clean and parse the files and put the questions and answers into a small lightweight database (SQLite) file. The third program generates practice tests which you can focus on particular areas of the exam or randomly select across the pool. The db file in the project is up to date as of February 3rd, 2020. When the FCC issues new/updated exam pools you can use the cleaning and parsing programs to update the database information. The project includes source code files. You may use them in your projects but you must give me attribution according to the GNU License Version 3.

Block that receives a " message" and send string values over serial connection, to control hardware devices ( switch ), for example, via Arduino based controller ( see https://sourceforge.net/projects/ardu-switch/ ) Prerequisite: pyserial Build as usual for a Gnuradio block: - download and unpack - cd gr-message_to serial - mkdir build && cd build - cmake .. && make - sudo make install && ldconfig If successful this block is into OOT section... Enjoy ;-)