Web based QO-100 Spectrum & Waterfall Display for the NB and WB Transponder
supports: RTL-SDR, SDRplay and Minitiouner
see here: https://github.com/dj0abr/QO-100_SSB-WebSDR_DATV-WebSpectrum
running on an Amsat-DL Downconverter with GPS-V2 board and two SDR-Play 1A boxes.
DATV WB Transponder:
http://wx.spdns.de:8081/wb.html
NB Transponder: