Messages/second question

Discussion in 'Feeding' started by MDVolle, Apr 7, 2019.

  1. MDVolle

    MDVolle New Member

    Is there a point where reception range, gain and traffic cause the messages/second to be too high to work properly?

    I'm running a shiny new pi3B+ with the ADSBX-Custom software

    My daytime rate is already over 700 messages/sec and my range is running out to about 150NM.

    Where is the breaking point where I shouldn't try to "improve" my setup and should just let it run?

    Thanks

    Mark
     
  2. MDA

    MDA Administrator Staff Member

    You are far far away from limits.
    upload_2019-4-7_12-37-14.png
    Let it run. Later you can try gain optimization (search forum, your dump1090 is mutability v1.15 dev).
    Marcin
     
    Jhonny Monclair likes this.
  3. Jhonny Monclair

    Jhonny Monclair Active Member

    Tadaaaa...Marcin's europe domination :p
     
    MDA likes this.
  4. MDA

    MDA Administrator Staff Member

    Test of dump1090 in --net-only mode. Merged from 5 receivers.
     
  5. MDVolle

    MDVolle New Member

    I know my range is "inferior" but I was wondering about the traffic - which is obviously something I will stop worrying about for now ;-)

    I think that my limit may come from dynamic range in the end - as I have planes that come as close as 500' to my antenna - they aren't supposed to - but student flyers and the occasional helicopter have made for some interesting fly-bys.

    I started working with the local airport after a CHP chopper started to develop a habit of making a low, banking swoop into the "approach" at around 2:30AM - coming over our house at a measured 400' and 90 knots -

    Thanks!
     
  6. MDVolle

    MDVolle New Member

    a lazy morning at 300messages/sec

    Screen Shot 2019-04-07 at 11.30.47 AM.png
     
  7. James

    James Guest

    Hey! You are the guy crashing the MLAT server map with your smart quotes in the feeder name!

    I spent 4 hours last night editing mlat server code to compensate.

    Please fix those damn quotes in the config. :D
     
  8. MDVolle

    MDVolle New Member

    I don't know you well enough (yet) - am I really doing something wrong?
     
  9. James

    James Guest

    It looks like whatever you edited the adsb-config.txt with inserted smart quotes instead of normal quotes ... which causes a parse error in the python code ... unicode vs ascii formatting ... I've patched it out .. so no need to change it now :D
     
  10. MDVolle

    MDVolle New Member

    OK - I think I know where to fix that - using text edit on a mac

    Also tried both M and FT after my altitude and neither worked - so maybe that's the same issue -

    I'm not going to touch anything for a bit but still haven't been able to get wireless working - might be the same thing again -

    "Smart Quotes" how ironic....
     
  11. James

    James Guest

    Yeah .. What you want to use is the straight double quote :D

    https://practicaltypography.com/straight-and-curly-quotes.html

    Smart quotes, are quotation marks and apostrophes, are curly or sloped. "Dumb quotes," or straight quotes, are a vestigial constraint from typewriters when using one key for two different marks helped save space on a keyboard.

    Programming tends to use straight quotes. Since the smart quotes are really only Microsoft word and some PDF.