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Aircraft with and without position discrepancy on dump1090

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  • Aircraft with and without position discrepancy on dump1090

    Hi everyone,

    I've been reading the forums recently and I'm new to ADS-B and feeding FR24, so I'm hoping someone can answer this for me

    Why is there often such a large discrepancy between aircraft total and with positions on dump1090?

    I can understand having a few missing, but if my system knows there is an aircraft then why would it be missing it's position data?

    This morning was a classic example, where I had 102 aircraft, but only 52 with positions - screen grab attached:

    Many thanks

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  • #2
    They don't send an ADS-B position and FR24 doesn't share MLAT positions.

    Take a look here for some stuff you might like:
    https://github.com/wiedehopf/adsb-wi...ADS-B-receiver

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    • #3
      Originally posted by wiedehopf View Post
      They don't send an ADS-B position and FR24 doesn't share MLAT positions.

      Take a look here for some stuff you might like:
      https://github.com/wiedehopf/adsb-wi...ADS-B-receiver
      Thank you!

      Comment

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