besides all rumours that it would not work we tried to decode the DATV bacon on the WB transponder with a "standard" satellite receiver and tested successfully. Downlink via 90cm offset dish, an Octagon Greed Quad LNB modified by me for external reference and a Dreambox DM8000.
The LNB was fed with 24.3MHz from a LeoBodnar GPSDO to shift the IF of the WB transponder to the input of the SAT RX. Using a manual scan we found A71A and could watch the demo on a flat screen. A short recording is uploaded to YT:
vy73 de Florian DF2ET