CallMeAlan
Second Officer
Flight distance : 27434 ft
United Kingdom
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Thank you all for the interesting views. I know that DJI drones use both standard GPS satellites plus Glonass. Not sure about Galileo or Beidou.
Drones, etc, can only see any satellites which are above the horizon. I don't know if their distribution is dependent upon time of day.
According to the theories a minimum of 4 is required to get a global fix, though accuracy increases with the number. I won't take off with fewer than 12, and that's roughly when the app announces that the home point is set. Arcticphoto states that there are 70 satellites in orbit, any of which the Mini 2 can possibly see. Assuming that half are below the horizonand are thus invisible, we should expect the Mini to see an ultimate maximum of perhaps 35, though unattainable in real life as some will be down very close to the horizon. An examination of the flight logs reveals that the number at any moment does constantly vary by 2 or 3 or more, presumably as the earth rotates.
Interesting subject!
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