I/Q Spectrogram viewer

WebApp to visualize the I/Q spectrogram of sample data. This is a full featured example for spectroplot. Just open https://triq.org/iqs and drop your rtl_433 sample data in.

You can choose the FFT bin number and zoom (x1, x2, x4, x8) with horizontal scrolling There is a frequency scale and a time scale, and dB(fs) range, a histogram of the plotted dB range and the full dB range. You can choose the gain and dB range. Also an experimental (spark line type) bar with min/max dB per sample. A cross hair with info on the frequency and time position is available on hover or touch. There are some windowing functions (Rectangular, Bartlett, Hamming, Hann, Blackman, Blackman-Harris), and some Colormap (Cube1, Sox, Naive, Viridis, Plasma, Inferno, Magma, Hot, Afmhot, Gist_heat, Parabola) to choose from.

Supported raw SDR data file types are:

• .cu4
• .cs4
• .cu8 (.data .complex16u)
• .cs8 (.complex16s)
• .cu12
• .cs12
• .cu16
• .cs16
• .cu32
• .cs32
• .cu64
• .cs64
• .cf32 (.cfile .complex)
• .cf64

Also supported are audio files containing I/Q data (if supported by the browser):

• .wav
• .bwf
• .webm
• .ogg
• .opus
• .flac
• .mp4
• .m4a
• .aac
• .mp3

All comments and suggestions very welcome.

If you like to give feedback:

• Is this useful to you? Why not, what is missing?
• Would you like to upload your samples to share by URL?
• Would you like to embed uploaded samples in e.g. a blog?
• Would you like to see more features, like timing guides, bandpass filters, ...?

Compiling

• Setup dependencies: yarn install
• Compile and hot-reload for development: yarn run serve
• Compile and minify for production: yarn run build
• Lint and fix files: yarn run lint

Copyright and Licence

Copyright (C) 2019-2021 Christian W. Zuckschwerdt [email protected]

Unless otherwise noted all sources are:

License: GPL-2+