Check out our GitHub Wiki here. Quick links are provided below:
Track our progress and upcoming features on our GitHub Project Board.
Spectre is a free and open source SDR-agnostic program for recording radio signals and spectrograms. It's geared for hobbyists, citizen scientists, and academics who want to achieve scientifically interesting results at low cost.
Powered by GNU Radio and FFTW, it provides high performance on modest hardware. Applications include:
- Solar and Jovian radio observations
- Educational outreach and citizen science
- Amateur radio experimentation
- Lightning and atmospheric event detection
- RFI monitoring
- Simple installation with Docker
- Wide receiver support (SDRplay, HackRF, RTL-SDR, USRP)
- Run natively on Linux, including Raspberry Pi
- Intuitive CLI tool
- Record spectrograms and I/Q data
- Long-form recordings
- Compatible with inspectrum
ℹ️ Looking for a lightweight alternative? Check out Spectrel, a stripped-back derivative of Spectre, written in pure C. No Docker required.