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Thread: Beta test new Flightradar24 MLAT software for Raspberry Pi

  1. #11
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    Can you document the changes to the timestamp format that you have made, please?

    (I'm not sure why it needed to change, the 12MHz clock works fine, but whatever the reason I'm inevitably going to be asked to support this in mlat-client at some point)

    edit: possibly assuming too much here. You say there are changes to dump1090 that may be incompatible with other mlat clients. What are those changes?
    editedit: oh! source on github. Let me have a look..
    edit^3: OK, so it'll break anything that wants to use AVR output, but the Beast output is unmodified.
    Last edited by obj; 2015-07-01 at 16:20.

  2. #12
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    runining fine

    pi@monitoring /etc $ sudo service fr24feed status
    [ ok ] FR24 Feeder/Decoder Process: running.
    [ ok ] FR24 Stats Timestamp: 2015-07-01 14:54:27.
    [ ok ] FR24 Link: connected [UDP].
    [ ok ] FR24 Radar: T-EHSB67.
    [ ok ] FR24 Tracked AC: 124.
    [ ok ] Receiver: connected (764002 MSGS/0 SYNC).
    [ ok ] FR24 MLAT: ok [UDP].
    [ ok ] FR24 MLAT AC seen: 132.

    also running gps / ntp

    pi@monitoring /etc $ ntpq
    ntpq> pe
    remote refid st t when poll reach delay offset jitter
    ================================================== ============================
    oGPS_NMEA(0) .GPS. 0 l 4 16 377 0.000 0.000 0.002
    +yao.tokyobase.n 213.75.85.246 2 u 49 64 377 7.067 -1.908 0.153
    *auth1.xs4all.nl 193.79.237.14 2 u 47 64 377 5.756 0.177 0.037

  3. #13
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    After I install it on my raspberry pi B+ ,

    pi@raspiblack ~ $ service fr24feed status
    [ ok ] FR24 Feeder/Decoder Process: running.
    [ ok ] FR24 Stats Timestamp: 2015-07-01 16:17:37.
    [ ok ] FR24 Link: connected [UDP].
    [ ok ] FR24 Radar: T-ZSSS32.
    [ ok ] FR24 Tracked AC:.
    [FAIL] Receiver: down ... failed!
    [FAIL] FR24 MLAT: not running ... failed!


    So I check the web:8754 status

    the version show Linux/generic/armv7l/1.0.13-6

    not armv6 ? ?

  4. #14
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    Quote Originally Posted by Mike View Post
    We start with just Raspberry Pi and when it has been tested we will add more platforms.
    Thanks Mike. Like many others, I too am anxiously awaiting the Linux update!

    Rick
    T-CYWH3

  5. #15
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    Quote Originally Posted by vinnyspb View Post
    ...
    You will be asked for a sharing key, whether or not you want MLAT enabled and for your exact position. Please carefully input the antenna's position, including altitude, because it's important for MLAT calculations. Other sign-up steps remain the same as before.

    ...
    Thanks!

    What is the best way to determine the exact position (including altitude)? And how exact should it be?

    Is there a possibility to get the exact position via iPhone GPS?

  6. #16
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    Up and running!

    FR24 Feeder/Decoder Process: running.
    FR24 Stats Timestamp: 2015-07-01 19:55:37.
    FR24 Link: connected [UDP].
    FR24 Radar: T-ENCN5.
    FR24 Tracked AC: 1.
    Receiver: connected (61 MSGS/0 SYNC).
    FR24 MLAT: ok [UDP].
    FR24 MLAT AC seen: 1.

  7. #17
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    Validating email/location information...ERROR

    There has been another feed (EDDN41) registered under this email address!
    If you have more than one receiver please contact us at support@flightradar24.com.

    If you have lost your sharing key please use the retrieval form at:
    http://feed.flightradar24.com/forgotten_key.php

    Would you like to try again?
    I`ll try again...

    Edit:

    Ok, I used my old key and it went on:

    I used autoconfig and I got a new radar id.

    And I got one error msg:

    Saving settings to /etc/fr24feed.ini...ERROR
    pi@fr24rasppi ~ $ sudo service fr24feed start
    [ ok ] Starting FR24 feeder: fr24feed.
    But it seems to be feeding. :-)

    We will see.


    Edit2:

    I had to do a
    sudo fr24feed --signup
    And a manual config instead of autoconfig.


    But then:

    It is running!
    sudo service fr24feed status
    [ ok ] FR24 Feeder/Decoder Process: running.
    [ ok ] FR24 Stats Timestamp: 2015-07-01 20:19:19.
    [ ok ] FR24 Link: connected [UDP].
    [ ok ] FR24 Radar: T-EDQD17.
    [ ok ] FR24 Tracked AC: 44.
    [ ok ] Receiver: connected (17310 MSGS/0 SYNC).
    [ ok ] FR24 MLAT: ok [UDP].
    [ ok ] FR24 MLAT AC seen: 44.
    Last edited by StDt; 2015-07-01 at 20:24. Reason: More info available

  8. #18
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    I follow the instruction and input my sharing key.
    Then, assigned new radar code.
    So, could you re-assign previous code again? because love previous radar code.


    After installation, please run the sign-up wizard even if you already have the sharing key:
    Code:
    $ fr24feed --signup

  9. #19
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    Quote Originally Posted by vinnyspb View Post
    There is NTP synchronization. The problem is that's it's not enough for MLAT. When we speak in terms of speed of light, 100 microseconds error gives 30km difference.
    Would something like this help to improve time accuracy / MLAT though it is only down to microseconds accuracy when installed on the rpi 2? It is a GPS expansion board for rpi2 using Ublox MAX-M8Q.


    http://ava.upuaut.net/store/index.ph...product_id=117

    Shouldn't use much processing power and the rpi 2 shouldn't have problem running it with the decoding software.

  10. #20
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    Installed and working here also:

    pi@pi ~ $ sudo service fr24feed status
    FR24 Feeder/Decoder Process: running.
    FR24 Stats Timestamp: 2015-07-02 04:51:19.
    FR24 Link: connected [UDP].
    FR24 Radar: T-YMEN20.
    FR24 Tracked AC: 13.
    Receiver: connected (17818 MSGS/0 SYNC).
    FR24 MLAT: ok [UDP].
    FR24 MLAT AC seen: 14.

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