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SDR++, The bloat-free SDR software

SDR++ is a cross-platform and open source SDR software with the aim of being bloat free and simple to use.

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Features

Multi VFO
Wide hardware support (both through SoapySDR and dedicated modules)
SIMD accelerated DSP
Cross-platform (Windows, Linux, OSX and BSD)
Full waterfall update when possible. Makes browsing signals easier and more pleasant
Modular design (easily write your own plugins)

Installing

Windows

Download the latest release from the Releases page and extract to the directory of your choice.

To create a desktop shortcut, rightclick the exe and select Send to -> Desktop (create shortcut), then, rename the shortcut on the desktop to whatever you want.

Linux

Debian-based (Ubuntu, Mint, etc)

Download the latest release from the Releases page and extract to the directory of your choice.

Then, run:

sudo apt install libfftw3-dev libglfw3-dev libvolk2-dev libsoapysdr-dev libairspyhf-dev libiio-dev libad9361-dev librtaudio-dev libhackrf-dev
sudo dpkg -i sdrpp_debian_amd64.deb

If libvolk2-dev is not available, use libvolk1-dev.

Arch-based

Install the latest release from the sdrpp-git AUR package

Other

There are currently no existing packages for other distributions, for these systems you'll have to build from source.

MacOS

You might get lucky by using the installer downloadable from the Releases page.

Building it yourself

This guide requires you to have Homebrew installed. Check out https://brew.sh/ on how to do so.

Get yourself a copy of the source code. This can be done by downloading the source package from the Releases page. Extract it to a location of your choice. Alternativley you can clone https://github.com/AlexandreRouma/SDRPlusPlus.git using git.

brew install \
  airspy \
  airspyhf \
  cmake \
  codec2 \
  fftw \
  glfw \
  hackrf \
  libbladerf \
  librtlsdr \
  portaudio \
  rtl-sdr \
  soapyrtlsdr \
  volk \
  zstd
mkdir build
cd build
cmake .. \
  -DOPT_BUILD_AUDIO_SINK=OFF \
  -DOPT_BUILD_BLADERF_SOURCE=OFF \
  -DOPT_BUILD_M17_DECODER=ON \
  -DOPT_BUILD_NEW_PORTAUDIO_SINK=ON \
  -DOPT_BUILD_PLUTOSDR_SOURCE=OFF \
  -DOPT_BUILD_PORTAUDIO_SINK=ON \
  -DOPT_BUILD_SOAPY_SOURCE=OFF
make -j$(sysctl -n hw.ncpu)

The above was tested on macOS Big Sur (11.5).

Check jobs.build_macos in the build_all.yaml workflow for the exact options used for building the package available in the releases

BSD

There are currently no BSD packages, refer to Building on Linux / BSD for instructions on building from source.

Building on Windows

The preferred IDE is VS Code in order to have similar development experience across platforms and to build with CMake using the command line.

Install dependencies

cmake
vcpkg
PothosSDR (This will install libraries for most SDRs)
RtAudio (You have to build and install it in C:/Program Files (x86)/RtAudio/)

After this, install the following dependencies using vcpkg:

fftw3
glfw3
zstd

You are probably going to build in 64 bit so make sure vcpkg installs the correct versions using .\vcpkg.exe install <package>:x64-windows

Building using the command line

IMPORTANT: Replace <vcpkg install directory> with vcpkg's install directory.

mkdir build
cd build
cmake .. "-DCMAKE_TOOLCHAIN_FILE=<vcpkg install directory>/scripts/buildsystems/vcpkg.cmake" -G "Visual Studio 16 2019"
cmake --build . --config Release

Running for development

Create a new configuration root directory

./create_root.bat

This will create the root_dev directory that will be used to save the configs of sdrpp and the modules.

You will next need to edit the root_dev/config.json file to point to the modules that were built. If the file is missing in your folder run the application once and it will create one with default value -- see later on how to run the application.

Run SDR++ from the command line

From the top directory, you can simply run:

./build/Release/sdrpp.exe -r root_dev -s

Or, if you wish to run from the build directory e.g. build/Release and adapt the relative path to the root_dev folder:

./sdrpp.exe -r ../../root_dev -s

The optional -s argument is for keeping the console active in order to see the error messages.

Because all the paths are relative, for the rest of the command line instructions we are going to assume you are running from the top directory using the former command. As mentioned previously you need to edit root_dev/config.json to add the modules that were built. From the default configuration file you need to add the paths in the modules section. Add to this list all the modules you wish to use.

...
"modules": [
    "./build/radio/Release/radio.dll",
    "./build/recorder/Release/recorder.dll",
    "./build/rtl_tcp_source/Release/rtl_tcp_source.dll",
    "./build/soapy_source/Release/soapy_source.dll",
    "./build/audio_sink/Release/audio_sink.dll"
]
...

You also need to change the location of the resource and module directories, for development, I recommend:

...
"modulesDirectory": "root_dev/modules",
...
"resourcesDirectory": "root_dev/res",
...

Remember that these paths will be relative to the run directory.

Installing SDR++

If you choose to run SDR++ for development, you do not need this step. First, copy over the exe and DLLs from build/Release/ to root_dev.

Next you need to copy over all the modules that were compiled. To do so, copy the DLL file of the module (located in its build folder given below) to the root_dev/modules directory and other DLLs (that do not have the exact name of the module) to the root_dev directory.

The modules built will be some of the following (Repeat the instructions above for all you wish to use):

build/radio/Release/
build/recorder/Release/
build/rtl_tcp_source/Release/
build/spyserver_source/Release/
build/soapy_source/Release/
build/airspyhf_source/Release/
build/plutosdr_source/Release/
build/audio_sink/Release/

Building on Linux / BSD

Select which modules you wish to build

Depending on which module you want to build, you will need to install some additional dependencies. Here are listed every module that requires addition dependencies. If a module enabled by default and you do not wish to install a perticular dependency (or can't, eg. the BladeRF module on Debian Buster), you can disable it using the module parameter listed in the table below

soapy_source: SoapySDR + drivers for each SDRs (see SoapySDR docs)
airspyhf_source: libairspyhf
plutosdr_source: libiio, libad9361
audio_sink: librtaudio-dev

Install dependencies

cmake
fftw3
glfw
libvolk
zstd

Next install dependencies based on the modules you wish to build (See previous step)

Note: make sure you're using GCC 8 or later as older versions do not have std::filesystem built-in.

Building

replace <N> with the number of threads you wish to use to build

mkdir build
cd build
cmake ..
make -j<N>

Create a new root directory

sh ./create_root.sh

Running for development

If you wish to install SDR++, skip to the next step

First run SDR++ from the build directory to generate a default config file

./sdrpp -r ../root_dev/

Then, you will need to edit the root_dev/config.json file to point to the modules that were built. Here is an example of what it should look like:

...
"modules": [
    "./build/radio/radio.so",
    "./build/recorder/recorder.so",
    "./build/rtl_tcp_source/rtl_tcp_source.so",
    "./build/soapy_source/soapy_source.so",
    "./build/audio_sink/audio_sink.so"
]
...

Note: You can generate this list automatically by running find . | grep '\.so' | sed 's/^/"/' | sed 's/$/",/' | sed '/sdrpp_core.so/d' in the build directory.

You also need to change the location of the resource and module directories, for development, I recommend:

...
"modulesDirectory": "./root_dev/modules",
...
"resourcesDirectory": "./root_dev/res",
...

Remember that these paths will be relative to the run directory.

Of course, remember to add entries for all modules that were built and that you wish to use.

Next, from the top directory, you can simply run:

./build/sdrpp -r root_dev

Or, if you wish to run from the build directory, you will need to correct the directories in the config.json file, and then run:

./sdrpp -r ../root_dev

Installing SDR++

To install SDR++, run the following command in your build folder:

sudo make install

Module List

Not all modules are built by default. I decided to disable the build of those with large libraries, libraries that can't be installed through the package manager (or pothos) and those that are still in beta. Modules in beta are still included in releases for the most part but not enabled in SDR++ (need to be instantiated).

Sources

Name	Stage	Dependencies	Option	Built by default	Built in Release	Enabled in SDR++ by default
airspy_source	Working	libairspy	OPT_BUILD_AIRSPY_SOURCE	✅	✅	✅
airspyhf_source	Working	libairspyhf	OPT_BUILD_AIRSPYHF_SOURCE	✅	✅	✅
bladerf_source	Working	libbladeRF	OPT_BUILD_BLADERF_SOURCE	⛔	⚠️ (not Debian Buster)	✅
file_source	Working	-	OPT_BUILD_FILE_SOURCE	✅	✅	✅
hackrf_source	Working	libhackrf	OPT_BUILD_HACKRF_SOURCE	✅	✅	✅
limesdr_source	Working	liblimesuite	OPT_BUILD_LIMESDR_SOURCE	⛔	✅	✅
sddc_source	Unfinished	-	OPT_BUILD_SDDC_SOURCE	⛔	⛔	⛔
rtl_sdr_source	Working	librtlsdr	OPT_BUILD_RTL_SDR_SOURCE	✅	✅	✅
rtl_tcp_source	Working	-	OPT_BUILD_RTL_TCP_SOURCE	✅	✅	✅
sdrplay_source	Working	SDRplay API	OPT_BUILD_SDRPLAY_SOURCE	⛔	✅	✅
soapy_source	Working	soapysdr	OPT_BUILD_SOAPY_SOURCE	✅	✅	✅
spyserver_source	Working	-	OPT_BUILD_SPYSERVER_SOURCE	✅	✅	✅
plutosdr_source	Working	libiio, libad9361	OPT_BUILD_PLUTOSDR_SOURCE	✅	✅	✅

Sinks

Name	Stage	Dependencies	Option	Built by default	Built in Release	Enabled in SDR++ by default
audio_sink	Working	rtaudio	OPT_BUILD_AUDIO_SINK	✅	✅	✅
network_sink	Working	-	OPT_BUILD_NETWORK_SINK	✅	✅	✅
new_portaudio_sink	Beta	portaudio	OPT_BUILD_NEW_PORTAUDIO_SINK	⛔	✅	⛔

Decoders

Name	Stage	Dependencies	Option	Built by default	Built in Release	Enabled in SDR++ by default
falcon9_decoder	Unfinished	ffplay	OPT_BUILD_FALCON9_DECODER	⛔	⛔	⛔
m17_decoder	Beta	-	OPT_BUILD_M17_DECODER	⛔	✅	⛔
meteor_demodulator	Working	-	OPT_BUILD_METEOR_DEMODULATOR	✅	✅	⛔
radio	Working	-	OPT_BUILD_RADIO	✅	✅	✅
weather_sat_decoder	Unfinished	-	OPT_BUILD_WEATHER_SAT_DECODER	⛔	⛔	⛔

Misc

Name	Stage	Dependencies	Option	Built by default	Built in Release	Enabled in SDR++ by default
discord_integration	Working	-	OPT_BUILD_DISCORD_PRESENCE	✅	✅	⛔
frequency_manager	Working	-	OPT_BUILD_FREQUENCY_MANAGER	✅	✅	✅
recorder	Working	-	OPT_BUILD_RECORDER	✅	✅	✅
rigctl_server	Working	-	OPT_BUILD_RIGCTL_SERVER	✅	✅	⛔

Troubleshooting

First, please make sure you're running the latest automated build. If your issue is linked to a bug it is likely that is has already been fixed in later releases

SDR++ crashes then it won't start again no matter what

This is a bug in 1.0.0 that was fixed in 1.0.1

In some cases, if a crash happened while the config was being saved, the config file woul be corrupted and SDR++ would refuse to start because of it.

This has now been fixed. If a config file is corrupted it'll just reset it to its default state.

"hash collision" error when starting

You likely installed the soapysdr-module-all package on Ubuntu/Debian. If not it's still a SoapySDR bug caused by multiple soapy modules coming in conflict. Uninstall anything related to SoapySDR then install soapysdr itself and only the soapy modules you actually need.

"I don't see -insert module name here-, what's going on?"

If the module was included in a later update, it's not enabled in the config. The easiest way to fix this is just to delete the config.json file and let SDR++ recreate it (you will lose your setting relating to the main UI like VFO colors, zoom level and theme). The best option however is to edit the config file to add an instance of the module you wish to have enabled (see the Module List).

SDR++ crashes when stopping a RTL-SDR

This is a bug recently introduced by libusb1.4 To solve, this, simply downgrade to libusb1.3

SDR++ crashes when starting a HackRF

If you also have the SoapySDR module loaded (not necessarily enabled), this is a bug in libhackrf. It's caused by libhackrf not checking if it's already initialized. The solution until a fixed libhackrf version is released is to completely remove the soapy_source module from SDR++. To do this, delete modules/soapy_source.dll on windows or /usr/lib/sdrpp/plugins/soapy_source.so on linux.

Issue not listed here?

If you still have an issue, please open an issue about it or ask on the discord. I'll try to respond as quickly as I can. Please avoid trying to contact me on every platform imaginable thinking I'll respond faster though...

Contributing

Feel free to submit pull requests and report bugs via the GitHub issue tracker. I will soon publish a contributing.md listing the code style to use.

Credits

Patrons

Bob Logan
Christian Häusler
Croccydile
Dale L Puckett (K0HYD)
Daniele D'Agnelli
D. Jones
EB3FRN
Eric Johnson
Ernest Murphy (NH7L)
Flinger Films
gringogrigio
Joe Cupano
Kezza
Krys Kamieniecki
Lee Donaghy
Lee KD1SQ
.lozenge. (Hank Hill)
ON4MU
Passion-Radio.com
Paul Maine
Scanner School
SignalsEverywhere
Syne Ardwin (WI9SYN)
W4IPA
Zipper

19 KiB Raw Blame History

SDR++, The bloat-free SDR software

Features

Installing

Windows

Linux

Debian-based (Ubuntu, Mint, etc)

Arch-based

Other

MacOS

Building it yourself

BSD

Building on Windows

Install dependencies

Building using the command line

Running for development

Create a new configuration root directory

Run SDR++ from the command line

Installing SDR++

Building on Linux / BSD

Select which modules you wish to build

Install dependencies

Building

Create a new root directory

Running for development

Installing SDR++

Module List

Sources

Sinks

Decoders

Misc

Troubleshooting

SDR++ crashes then it won't start again no matter what

"hash collision" error when starting

"I don't see -insert module name here-, what's going on?"

SDR++ crashes when stopping a RTL-SDR

SDR++ crashes when starting a HackRF

Issue not listed here?

Contributing

Credits

Patrons

Contributors

Libraries used

19 KiB

Raw Blame History