CovTrack presentation was featured on ESA’s news webpage. More details here.

Balloon 5

We are currently testing equipment for a new balloon launch (check YO4ESC-12 on Launch date is expected to be 9.July.2020, 9:30 near Stalpu, Buzau.

Preliminary payload:

  • custom APRS tracker (Arduino with LibAPRS + 1W DRA818v), 144.8MHz, callsign YO4ESC-12, rate 2/min
    • Venus GPS + data logger
  • reprogrammed RS41 radio sonde (as described by OM3BC):
    • APRS 432.500MHz, callsign YO4ESA-11, rate 1/min
    • RTTY 434.500MHz (baudrate 50, shift 540MHz, 7 data bits, parity none, 2 stop bits).  FL-Digi can be configured as presented on

Launch: Stalpu near Buzau, Romania.