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drmpeg /
Last active December 9, 2023 20:11
How to create high quality gr-paint images.

High Quality Spectrum Painting

A quick tutorial on how to get high quality images from gr-paint and Gqrx.

Spectrum Example


  • Use a newer version of Gqrx with Ref. level and dB range sliders.
  • Set the FFT size in Gqrx to 32768