Spectrum Painter - portapack-mayhem/mayhem-firmware GitHub Wiki

The Spectrum Painter app allows to "paint" an image or text in a way that it appears on the waterfall view.

Options

  • Center frequency
  • VGA (Gain)
  • Amplifier
  • Loop
  • Bandwidth
    • Note that the default bandwidth of 8k5 Hz is too low in most cases (eg. when viewing multiple MHz).
  • Duration of transmission
  • Pause between transmissions when loop is active

Images

  • Place 24 bit .BMP files on the sd card in the folder SPECTRUM
    • 16 and 32 bit .BMP should work as well, but are not testet.
  • The resolution should be quite high for a good result. A width of 2048 pixels is not a problem.
    • Use a power of 2 for the width for optimal result. (eg. 512 / 1024 / 2048 / ...)

SCR_0000

grafik

Text

  • Messages up to 300 characters are supported

SCR_0003

Screenshot