Today I managed to send FT4 and decode my own signals via AO-109. According to the following post the output from the satellite is aprox 8 mW.
As you see I only managed to decode two of my TX, but it was because I made some adjustments and lost my RX for a while.
Downlink equipment was nothing special – 13 el LFA Yagi, LNA and WSJT-X Improved will full duplex.