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This year, there is a lot of wind
and the prediction is that it's going to land in Strasbourg
We have a range of sensors, which are recorded
and sent with a Walkie Talkie to the base
where it is processed in a software, which shows the position on a map
and shows the measurements on graphs.
The frames are emitted
we decode them with the software and check if it works.
When released, the balloon goes up pretty fast until 30km high.
After a while, the balloon bursts and falls down.
Normally, the parachute slows down the fall, but very often it doesn't work and it falls like a stone.
We are doing the video tracking of the balloon
There is a 2.4Ghz modulator inside, which transmits a Frequency Modulation encoded picture.
It is received by a amplifier and a parabolic antenna.
We did really well this time,
We received the signal over 200 km, which was very good
and we also beat a record, the balloon passed 30km in height we're very happy.
Are you in the car?
Are you still receiving it?
0No? Did it fall?
You lost it at 2 km.
Direction VI-SHANG-GHI???
Oh, there's a lake...
Well then, get the swim fins out!