These pico balloons weigh grams.
Yeah, I think ours was less than 10 grams.
As rules go, IIRC at least here in the Czech Republic anything below 100 g is unregulated, you just need to have a licensed amateur radio operator, so that the probe can broadcast in the 20 meter WSPR band under his callsign.
Parent to mine mentioned 4 pounds.
Yeah, I think ours was less than 10 grams.
As rules go, IIRC at least here in the Czech Republic anything below 100 g is unregulated, you just need to have a licensed amateur radio operator, so that the probe can broadcast in the 20 meter WSPR band under his callsign.
Parent to mine mentioned 4 pounds.