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Old 20th November 2022 | 15:07
  #8 (permalink)  
wrench1
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Joined: Oct 2006
: A&P
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From: USA
Originally Posted by Pilot DAR
Can someone tell me: Is the "Groundspeed" reported on ADS-B output the speed across the ground? or, the indicated airspeed?
ADS-B can report up to 4 speeds. Here is the simple explanation:
https://www.adsbexchange.com/ads-b-d...-explanations/
https://blog.flightaware.com/speed-v...s-tas-and-mach'

Here is a more technical explanation:
https://mode-s.org/decode/content/ad...-velocity.html
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