3 ms·

Wow, that's amazing. 22 laps around the world over the course of one year. And HF data rx in Australia from this tiny circuit board attached to a tiny balloon o

Wow, that's amazing. 22 laps around the world over the course of one year. And HF data rx in Australia from this tiny circuit board attached to a tiny balloon over the mid-atlantic. Worth a read. Also bonus Windows XP points. Btw how are they flying a circuit board in the raw without damaging environmental effect from water? I'm new to this part of the hobby.

th0ma5 6y ago
Maybe they just put on a thin layer of conformal coating?
- sgt 6y ago
  What about clear coat paint you would get from a hardware store just before launch?
  - djaque 6y ago
    I've always used clear nailpolish as a hacky version of conformal coating.
  - 0_____0 6y ago
    fwiw You can get urethane and silicone conformal coating in a spray can and it's not that expensive.
    - sgt 6y ago
      Agreed, and your wife won't be upset when she discovers all the nailpolish is gone :)
trophyhead 6y ago
At the altitudes these are flying at (10km+), the air is bone dry. Unless moisture is encountered on the ascent, there is no need for conformal coating. P.S. - I've done a fair number of these flights and can speak in more detail about this hobby on request. Great fun!
pugworthy 6y ago
It amazes me that the balloon can last that long. That it's not losing it's loft over time.