500uW (0.5mW) 10m WSPR (again)

Rather than make an attenuator, I have decided to continue with 500uW WSPR on 10m, i.e. with the beacon PA turned off. I did a re-sync at about 0900z.

UPDATE 2104z:  No spots all day. As I said before, I suspect conditions have to be very good for WSPR to work at this tiny power.