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What is Hs in GPS data?

Discussion in 'Pro/Adv Discussion' started by phirephoto, May 16, 2015.

  1. phirephoto

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    So looking at the GPS data file stored on the SD card:
    Hb is altitude in meters, but what is Hs? I can't see any corolation to flying and what it is :)

    Thanks.
     
  2. snerd

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    Horizontal speed? Just guessing since mine isn't here yet.
     
  3. phirephoto

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    That would sound obvious, but I'm seeing times where I'm ascending and it doesn't move. (but altitude IS changing - according to Hb.)
     
  4. loganboyd

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    Are you going straight up when that happens?
     
  5. phirephoto

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    Yep. There's times when it does appear that it's vertical speed, and times when it's not. I can't see any corolation between movement and the numbers.
     
  6. Aramis

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    This is the VPS sensor height. Strange values depending on VPS is ON or OFF.
    Hb = barometric height
     
  7. phirephoto

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    So the VPS only is effective for a few feet, right? So maybe that's why I only see a distance of like 4-5 feet from it, then 0?
     
  8. Aramis

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    I wont say the value is somewhat random when the quad is above VPS range (from 0 to 3 m) but it seems to be.
    I'm flying only outside for the moment, I set VPS to OFF. Usually, when the quad is above 70m height, having an horizontal speed or not, I always have 25,5 for Hs. And sometimes I have this value above 40 or 50m.
    Horizontal speed is only available in the flight log, not in the subtitle file.