RTLSDR-Airband

CI Workflow Status

	Run CI	Platform Build	Code Formatting
x86_64 ubuntu-22.04
x86_64 ubuntu-24.04
ARM64 ubuntu-22.04
ARM64 ubuntu-24.04
ARM64 macos-14
ARM64 macos-15
ARM64 macos-26
x86_64 macos-15 (Intel)
x86_64 macos-26 (Intel)
ARM64 Debian Trixie (Pi 4B)

Published Containers

linux/amd64	linux/386	linux/arm64	linux/arm/v6	linux/arm/v7

Major / Minor Version Changes:

Changes as of v5.1.0:

• License is now GPLv2 #503

NOTE: Repo URL has moved to https://github.com/rtl-airband/RTLSDR-Airband see #502 for info

Changes as of v5.0.0:

• PRs will be opened directly against main and the unstable branch will no longer be used
• Version tags will be automatically created on each merge to main
• A release will be created on each major or minor version tag but not minor tags
• Checking out main is recommended over using a release artifact to stay on the latest version
• This repo has significantly diverged from the original project microtony/RTLSDR-Airband so it has been been detached (ie no longer a fork).
• Specific build support for rpiv1, armv7-generic, and armv8-generic have been deprecated for the new default native, see #447

Overview

RTLSDR-Airband receives analog radio voice channels and produces audio streams which can be routed to various outputs, such as online streaming services like LiveATC.net. Originally the only SDR type supported by the program was Realtek DVB-T dongle (hence the project's name). However, thanks to SoapySDR vendor-neutral SDR library, other radios are now supported as well.

Documentation

User's manual is now on the wiki.

Credits and thanks

I hereby express my gratitude to everybody who helped with the development and testing of RTLSDR-Airband. Special thanks go to:

• Dave Pascoe
• SDR Guru
• Marcus Ströbel
• strix-technica
• Tomasz Lemiech
• charlie-foxtrot

License

Copyright (C) 2022-2025 charlie-foxtrot

Copyright (C) 2015-2022 Tomasz Lemiech szpajder@gmail.com

Based on original work by Wong Man Hang microtony@gmail.com

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, see https://www.gnu.org/licenses/.

Open Source Licenses of bundled code

gpu_fft

BCM2835 "GPU_FFT" release 2.0 Copyright (c) 2014, Andrew Holme. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
• Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

rtl-sdr

• Copyright (C) 2012 by Steve Markgraf steve@steve-m.de
• Copyright (C) 2015 by Kyle Keen keenerd@gmail.com
• GNU General Public License Version 2