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how is altitude calculated on iPhone 11
http://ru.wikiloc.com/forum/viewtopic.php?f=38&t=11363
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Author:  twiginger [ 10 Feb 2021, 17:31 ]
Post subject:  how is altitude calculated on iPhone 11

I use an iPhone 11
I would like to know how is altitude recorded, based on the map or on satellite data?
how can I know that satellite reception is ok?
(once I recorded a track with +1000m all along it, the profile shape was correct, but 1000 m above)
Thanks for a reply
is a very important info for me!
kind regards
Valeria

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