WSPR Balloon over YO

The Spring of 2021 was very rich in balloons launches from North America. One of them, having KM4ZIA-3 callsign, is now still above YO, at around 12.000 meters altitude.

The payload contains a WSPR transmitter, for 20m band and was very easy to receive it using the DX Patrol SDR receiver and a whip. As software, SDR-Sharp and WSJT-X.