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Thread: Flightradar24 decoder/feeder BETA testing (Win/RPi/Linux/OSX)

  1. #11
    Administrator piopawlu's Avatar
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    There's a new build (3) available that fixes the RAW/30002 port output.

    Right now it defaults to "auto", but you can specify any gain value you want in .1 dB units with --gain=NNN. I will get some debugging information out, in the next build.

  2. #12
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    RAW port 30002 now works correctly. But doesn't send signal level.
    Also it would be nice if we can change ports, so the testing would be easier!

    CPU use still very high, in comparison dump1090 is under 5-10% (on a Intel Atom N270)

  3. #13
    Administrator piopawlu's Avatar
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    There have been no changes related to CPU, I am pretty sure I know the reason but I just haven't had time. Next update tomorrow should address the CPU issue.

  4. #14
    Administrator piopawlu's Avatar
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    New build (4) available, should address the high CPU load problem.

  5. #15
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    Hi piopawlu!

    Now CPU use is very low... I'm impressed! It's under 5% most of the time.

    I noted that altitude is not show for aircraft that do not transmit position.

    Another strange thing: the range now is good, but for very near aircraft (and in line of sight) reception is irregular, few packets decoded.

  6. #16
    Administrator piopawlu's Avatar
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    A new build is available now that makes small adjustment to the CPU usage, as well as the first Raspberry Pi build!

    I will check the altitude problem, but the "near aircraft" problem may be related to gain settings, we use adapted open source dump1090 code to demodulate data and therefore it's not been deeply investigated just yet.

  7. #17
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    Ok, let me know if you need more data.

  8. #18
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    For the Pi version - could you consider adding an auto-update feature?

    The program that is started would be a stub that establishes communication with the home server - this would then check for the presence and version of the main module, and if necessary update the main module before starting it (possibly enabled by the presence of an '--au=y' parameter)

  9. #19
    Administrator piopawlu's Avatar
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    Yes it makes sense to have this as an option. It might be tricky to have a self update in terms of replacing the binary itself, but I can make the app exit with a specific code should there be an update, then all it takes is to download the new binary, swap it and replace which can be done with wget + tar.

  10. #20
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    Feedback on RPi Beta 0.5

    (I cant spell receiver, misspell it and it doesn't say unrecognised parameter - it just craps out with invalid config message)

    I don't get the dump1090 map any more on http://rpi-ip:8080 (I'll miss it, can we have it back?)

    Can we link the feeder to adsbscope?

    Can't link to Radarview from chrome or Firefox (when given IP of Pi in settings, local data load failed 4 times) - this is nothing new though - it didn't work for me with the feeder arm-241/242.

    otherwise I get
    Code:
    [dvbt][i]Found 1 device(s):
    [dvbt][i]0: Realtek, RTL2838UHIDIR, SN: 00000001 (currently selected)
    Found Rafael Micro R820T tuner
    [dvbt][i]Using automatic gain control.
    Exact sample rate is: 2000000.052982 Hz
    [dvbt][i]Gain reported by device: 0.00
    
    root@raspberry-pi:~# cat /tmp/fr24feed.log
    [main][i]FR24 Decoder [0x02113000]
    [main][i]Built on 20140528-0558 (r:/Linux/armv6l)
    [main][i]Copyright 2008-2014 (c) Piotr Pawluczuk, Flightradar24 AB ( http://flightradar24.com )
    [main][i]Reader 0 started
    [main][i]Socket server started
    [main][i]Feed Network client started
    [feed][i]Downloading configuration
    [bs][i]Initializing server
    [bs][i]Starting server on *:30003
    [reader][i][0]Initializing reader
    [reader][i][0]Connecting to Generic receiver via (dvbt://local)
    [master][i]Starting processing thread
    [feed][c]Interval: 5s
    [feed][c]Latitude: 52.4762
    [feed][c]Longitude: -1.8986
    [feed][c]GND: YES
    [feed][c]NonADSB: YES
    [feed][i]defined 1 server
    [feed][n]EGBB19@83.140.21.66:8099/UDP
    [feed][n]connecting
    [i][stats]Stats thread started
    [reader][i][0]Connected to the receiver, authenticating
    [reader][i][0]Authenticated, processing messages
    [feed][n]connected
    [feed][n]switching to UDP
    [feed][n]working
    [feed][i]sent 42 planes in 2 packets
    [feed][i]sent 42 planes in 2 packets
    [feed][i]sent 40 planes in 1 packets
    Now running dump1090 (Malcolm Robb) and Rpi_242 feeder
    Last edited by peterhr; 2014-05-28 at 19:04.

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