This project contains rtl-sdr tool written in c to scan and record multiple interesting frequencies bandwidth in the same time (eg. 108 MHz, 144 MHz, 440 Mhz, etc). This is possible by switching quickly between frequencies bandwidth.
This project is a new version of rtl-sdr-scanner which was written in python.
An improvement over the previous version:
- huge performance boost
- support long time recordings
- faster signals detection
- save recordings as mp3
You need gcc, cmake and some libraries to start the work. Install it before continue. For example on Debian based distribution run follow commands:
sudo apt-get install build-essential cmake libspdlog-dev librtlsdr-dev libsox-dev libsoxr-dev libliquid-dev nlohmann-json3-dev libboost-all-dev rapidjson-dev
cmake -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build -j$(nproc)
Edit your configuration in file config.json.
./build/auto-sdr config.json
docker build -t auto-sdr --build-arg URL="https://github.com/shajen/rtl-sdr-scanner-cpp/archive/refs/heads/master.zip" .
docker run --hostname auto-sdr -it -v $(pwd)/sdr:/sdr -p 9999:9999 -v $(pwd)/config.json:/root/config.json auto-sdr
shajen@artemida:~/git/auto-sdr-cpp $ ./build/auto-sdr config.json
[2022-01-21 03:00:55.105] [auto-sdr] [info] [main] start app auto-sdr
[2022-01-21 03:00:55.105] [auto-sdr] [info] [main] build type: release
[2022-01-21 03:00:55.172] [auto-sdr] [info] [rtl_sdr] open device, index: 0, name: Generic RTL2832U OEM, serial: 00000001
[2022-01-21 03:00:55.659] [auto-sdr] [info] [rtl_sdr] ignored frequency ranges: 2
[2022-01-21 03:00:55.659] [auto-sdr] [info] [rtl_sdr] frequency range, start: 144.100.000 Hz, stop: 144.200.000 Hz, step: 0.000.000 Hz, bandwidth: 0.000.000 Hz
[2022-01-21 03:00:55.659] [auto-sdr] [info] [rtl_sdr] frequency range, start: 145.588.000 Hz, stop: 145.608.000 Hz, step: 0.000.000 Hz, bandwidth: 0.000.000 Hz
[2022-01-21 03:00:55.659] [auto-sdr] [info] [rtl_sdr] original frequency ranges: 1
[2022-01-21 03:00:55.659] [auto-sdr] [info] [rtl_sdr] frequency range, start: 144.000.000 Hz, stop: 146.000.000 Hz, step: 0.000.125 Hz, bandwidth: 2.048.000 Hz
[2022-01-21 03:00:55.659] [auto-sdr] [info] [rtl_sdr] splitted frequency ranges: 1
[2022-01-21 03:00:55.659] [auto-sdr] [info] [rtl_sdr] frequency range, start: 144.000.000 Hz, stop: 146.000.000 Hz, step: 0.000.125 Hz, bandwidth: 2.048.000 Hz
[2022-01-21 04:30:48.280] [auto-sdr] [info] [rtl_sdr] recording signal, frequency: 145.821.500 Hz, power: 18.61 dB ##############################
[2022-01-21 04:30:48.281] [auto-sdr] [info] [recorder] start recording frequency: 145.821.500 Hz
[2022-01-21 04:30:48.487] [auto-sdr] [info] [rtl_sdr] start stream
[2022-01-21 04:30:49.105] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:49.205] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:49.297] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:49.389] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:49.501] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:49.595] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:49.688] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:49.782] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:49.898] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:49.994] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:50.088] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:50.182] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:50.299] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:50.393] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:50.490] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:50.516] [auto-sdr] [info] [rtl_sdr] cancel stream
[2022-01-21 04:30:50.582] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:50.695] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:50.793] [auto-sdr] [info] [recorder] no signal
[2022-01-21 04:30:51.534] [auto-sdr] [info] [rtl_sdr] stop stream
[2022-01-21 04:30:51.536] [auto-sdr] [info] [recorder] stop recording
[2022-01-21 04:30:51.539] [auto-sdr] [info] [mp3] recording time: 0.00 s, too short, removing
Recordings are stored in sdr/recordings/ directory by default.
Repository contains additional helpful tools to work with waterfall plot based on data from rtl-sdr-scanner module.
Open waterfall live/index.html in your web browser. Based on https://github.com/jledet/waterfall sources.
It produces waterfall plot in real time.
pip3 install --user -r 'waterfall store/requirements.txt'
python3 'waterfall store/main.py'
It produces waterfall plot to sdr/waterfalls directory every 10 minutes by default.
In general don't be afraid to send pull request. Use the "fork-and-pull" Git workflow.
- Fork the repo
- Clone the project to your own machine
- Commit changes to your own branch
- Push your work back up to your fork
- Submit a Pull request so that we can review your changes
NOTE: Be sure to merge the latest from upstream before making a pull request!
If you enjoy this project and want to thanks, please use follow link:
