不到2万米？这不影响民航？

来源: psp2000 于 2023-02-17 09:18:46 [] [旧帖] [给我悄悄话] 阅读数 : (737 bytes)
回答: 现在他们就有两个气球处于中国上空 由 红米2015 于 2023-02-17 06:47:56

Pico Ballooning is a part of Amateur Radio also known as Ham Radio or Hams. We’re licensed by the Federal Communications Commission (FCC) allowing us to communicate to other Hams throughout the World. Pico meaning small, we send a small transmitter, with GPS tracking and antenna on a balloon filled with Hydrogen, rising to 47,000 feet, and travelling with the speed of the Jetstream. As we travel, our GPS is able to locate our current location, and other information is gathered depending on what chips we have on our transmitter while using other programs to gather other inflight information.

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