I'm YO8SEP and I've started building my setup for QO-100.
I've started this thread to keep track of my progress and problems I encounter.
It will be based on Adalm Pluto with 0.5ppm TXCO + CN0417 driver + attenuator + (later) SG Lab 20w PA feeding a Poty or Helix (depending on local materials).
Antenna will be a 90cm offset + LNB PLL (txco or sdr-console locked) + BiasT. I might add later a 740Mhz band pass filter and/or attenuator if needed.