inspectrum is a tool for analysing captured signals, primarily from software-defined radio receivers.
- Large (100GB+) file support
- Spectrogram with zoom/pan
- Plots of amplitude, frequency, phase and IQ samples
- Cursors for measuring period, symbol rate and extracting symbols
- Export of selected time period, filtered samples and demodulated data
Install inspectrum with your package manager, it should be present in most distros.
- cmake >= 3.1
- fftw 3.x
- liquid-dsp >= v1.3.0
- pkg-config
- qt5
Build instructions can be found here: https://github.com/miek/inspectrum/wiki/Build
./inspectrum [filename]
inspectrum supports the following file types:
*.sigmf-meta, *.sigmf-data- SigMF recordings*.cf32,*.fc32,*.cfile- Complex 32-bit floating point samples (GNU Radio, osmocom_fft)*.cf64,*.fc64- Complex 64-bit floating point samples*.cs32,*.sc32,*.c32- Complex 32-bit signed integer samples (SDRAngel)*.cs16,*.sc16,*.c16- Complex 16-bit signed integer samples (BladeRF)*.cs8,*.sc8,*.c8- Complex 8-bit signed integer samples (HackRF)*.cu8,*.uc8- Complex 8-bit unsigned integer samples (RTL-SDR)*.f32- Real 32-bit floating point samples*.f64- Real 64-bit floating point samples (MATLAB)*.s16- Real 16-bit signed integer samples*.s8- Real 8-bit signed integer samples*.u8- Real 8-bit unsigned integer samples
If an unknown file extension is loaded, inspectrum will default to *.cf32.
Note: 64-bit samples will be truncated to 32-bit before processing, as inspectrum only supports 32-bit internally.