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Thread: fr24feed output on RPi (bash)

  1. #1
    Flight attendant ukjay's Avatar
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    fr24feed output on RPi (bash)

    I would like to know where I can find help about such things as feed sent 1,2 AC
    etc when I monitor fr24feed text as Im just guessing what it means at the moment!
    Is there a help page anywhere as s/w is only as good as its Help file IMHO!
    James Lazzari BSc (Hons)
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    http://www.ukjay.co.uk

  2. #2
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    Just use the web page not the console. It's far more informative

    It's mlat,adsb AC = aircraft.

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  3. #3
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    And if you look at /monitor.txt it shows the raw data that the console info data is pulled from.

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  4. #4
    Flight attendant ukjay's Avatar
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    Thanks Oblivian, I guessed AC meant aircraft, but recently I wondered if I was wrong and it was Modes for the numbers 1,2 etc.
    I'll now goodle mlat & adsb haha

    But am guessing these are the two modes where the fist has no Lat,Long data...
    I do like the tracked list displayed on the browser, which I can monitor from my tablet/windows/RPi
    Anyway I digress & thanks again!

    I suppose this forum is the help file !!!
    James Lazzari BSc (Hons)
    T-EGCC125
    http://www.ukjay.co.uk

  5. #5
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    More a case of only give people the basics to get data to us. The rest is need to know/not of interest to Joe bloggs I guess.

    Mlat is the non location data, yes. Server then uses that with others same data and triangulates.

    Other times it will capture but not upload if sever sends a dont-bother/ignore req so you see xAC removed.

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  6. #6
    Flight attendant ukjay's Avatar
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    brilliant - thanks again
    just searching on my RPi for that monitor file you mentioned!
    A lot rusty on Linux, so things are very slow here in Stoke .....
    James Lazzari BSc (Hons)
    T-EGCC125
    http://www.ukjay.co.uk

  7. #7
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    cat /dev/shm/decoder.txt


    Don't you like the table at http://address_of_pi/dump1090/

  8. #8
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    Quote Originally Posted by ukjay View Post
    brilliant - thanks again
    just searching on my RPi for that monitor file you mentioned!
    A lot rusty on Linux, so things are very slow here in Stoke .....
    Http://piipgoeshere:8754/monitor.txt

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  9. #9
    Flight attendant ukjay's Avatar
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    Ok I just got it
    http://locahost:8754/monitor.txt
    but subtituted local host for my RPi IP address as I'm on my windows PC at the moment

    Thanks again - I got tired doing searches on my RPi
    Great info tar !
    James Lazzari BSc (Hons)
    T-EGCC125
    http://www.ukjay.co.uk

  10. #10
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    Code:
    2019-05-18 12:04:34 | [mlat][i]Pinging the server
    2019-05-18 12:04:34 | [feed][i]filtering out 116 overlapping AC (saving bandwidth)
    2019-05-18 12:04:34 | [mlat][i]Stats 36353605/2184
    2019-05-18 12:04:36 | [feed][i]removed 2 of 123 AC
    2019-05-18 12:04:38 | [feed][i]sent 4,101 AC
    2019-05-18 12:04:43 | [feed][i]sent 5,97 AC
    2019-05-18 12:04:44 | [feed][i]removed 1 of 123 AC
    2019-05-18 12:04:48 | [feed][i]sent 3,96 AC
    2019-05-18 12:04:53 | [feed][i]sent 4,90 AC
    2019-05-18 12:04:54 | [mlat][i]Pinging the server
    2019-05-18 12:04:54 | [mlat][i]Stats 36355656/2051
    2019-05-18 12:04:56 | [feed][i]removed 1 of 122 AC
    2019-05-18 12:04:58 | [feed][i]sent 5,91 AC
    2019-05-18 12:05:03 | [feed][i]sent 7,92 AC
    2019-05-18 12:05:08 | [feed][i]removed 1 of 124 AC
    2019-05-18 12:05:08 | [feed][i]sent 6,90 AC
    2019-05-18 12:05:12 | [feed][i]removed 1 of 125 AC
    2019-05-18 12:05:13 | [feed][i]sent 9,90 AC
    2019-05-18 12:05:13 | [feed][n]syncing stream async: 1
    2019-05-18 12:05:14 | [feed][n]syncing stream result: 1
    2019-05-18 12:05:14 | [mlat][i]Pinging the server
    2019-05-18 12:05:14 | [mlat][i]Stats 36357587/1931
    2019-05-18 12:05:16 | [feed][i]removed 2 of 126 AC
    "sent 5,91" probably means that data for 5 of 91 AC with positions were sent to the server.

    As for the other numbers:
    2019-05-18 12:07:36 | [feed][i]filtering out 106 overlapping AC (saving bandwidth)
    2019-05-18 12:07:40 | [feed][i]removed 1 of 114 AC

    My guess is that the 106 and 114 are a count in relation to all aircraft, not only those with position.
    "removed" means it's now out of range i believe.

    2019-05-18 12:05:14 | [mlat][i]Stats 36357587/1931

    Those are mlat statistics, on the right side is basically a count of messages sent to the server which will then be used for multilateration.
    The left number is a total of those messages.

    But that's all my guess, their is no official reference.

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