Pico-Ballons with Jake, N0LX

Описание: Jake, N0LX shares his experience from launching #pico-balloons into the stratosphere.

00:00 Intro
01:05 Who am I?
03:20 What is a pico-balloon (not)?
04:05 Why fly pico-balloons?
05:24 Materials
10:33 Launch and flight preparations
12:25 Ascent rate
13:27 What could possibly go wrong?
13:54 Leaking gas
15:20 Bad solder joints
17:00 Drifting outside of sunlight zone (e.g. into a polar night)
17:42 Getting into a bad weather
23:05 GPS interference
25:58 Legality of the flights
26:46 Where is N0LX-15?
27:40 20mW WSPR on the antipodes
29:02 5 laps around the world mapped
30:40 Tools and troubleshooting
35:01 Q&A:Is there a list of parts available?
35:25 VWS' Makers group organizes a group build
36:12 Q&A: Where to get hydrogen?
37:02 Q&A: What's the temperature difference between travel altitudes, and does it affect the size of the balloon?
38:15 Q&A: How large is the balloon at the altitude?
38:34 Q&A: Is there a difference in leak rate between helium and hydrogen?
39:33 Q&A: Does the tracker software use geo-fencing to shut off the transmissions?
41:18 Q&A: Do the limitations imposed on civilian GPS receivers affect tracking?
42:43 Pico-balloon components demo

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