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Thread: Nave question?

  1. #1
    Flight attendant
    Join Date
    Jun 2019
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    64

    Nave question?

    Hi all,

    this afternoon I compared my Flightradar view with Flightaware skyview.

    I do not understand why I do not see all the planes e.g in the Dusseldorf area. It looks like I can "see: that area, when I look at the screenshot from the Flightware sky view.

    I added the two screenshots. Perhaps a nave or even stupid question but I hope there is someone how is willing to explain this.

    Thanks
    Screenshot 2019-08-04 at 16.57.40.jpg. Screenshot 2019-08-04 at 16.57.51.jpg

  2. #2
    Captain Anmer's Avatar
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    Apr 2010
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    Your FlightAware Skyview will display all your locally tracked flights including any which FlightAware has plotted using MLAT.

    FR24 will block or not display some flights, such as business and most military.

    Check your Skyview map to see if those missing from FR24 are MLAT plots, business or military?
    Mike


    www.radarspotting.com

    Radarspotting since 2005

  3. #3
    Flight attendant
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    Jun 2019
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    What I meant is that I do see only a few planes around Dsseldorf. It's an airport, so if I see a few, what would be the reason I cannot see the others. Checked it again, it are commercial flights. No military or so. Hope I made myself clearer

  4. #4
    Captain Anmer's Avatar
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    Check if you have any filters set?
    Mike


    www.radarspotting.com

    Radarspotting since 2005

  5. #5
    Flight attendant
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    Jun 2019
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    I am not aware of any filters I could have set.
    Using:
    Raspberry Pi 3B+
    Rtl-SDR dongle
    This antenna https://www.ebay.com/itm/183717378846, hanging outside by balcony, not 100% "free"
    Installed Flightradar, Flightaware and Planfinder

  6. #6
    Captain
    Join Date
    Apr 2018
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    Check out this thread: https://forum.flightradar24.com/thre...ange-I-can-Get

    You need a direct line of sight to a plane.

    Seeing airplanes in a particular direction at 40 000 ft at a certain distance is not the same as seeing them at 20 000 ft.
    You range will be much much lower for planes that fly lower.

  7. #7
    Passenger
    Join Date
    Mar 2018
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    Netherlands
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    The greater the distance from your receiver, the higher the minimum altitude is on which you can see planes in that area.

  8. #8
    Flight attendant
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    Jun 2019
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    I checked the site and added a screenshot.

    I know the greater the distance is the less I can see, but seeing my graph I have a feeling I should be able to see somewhat more. Dsseldorf is around 100NM
    Screenshot 2019-08-04 at 20.40.25.jpg

  9. #9
    Captain Anmer's Avatar
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    What are you viewing for FR24?

    Is it the website? That's what it appears from your screen capture.

    In which case, assuming no filters set, you're seeing traffic from the FR24 server. You're implying your locally tracked flights, as displayed on FlightAware's Skyview, shows more planes than the FR24 website. Or am I missing something?
    Mike


    www.radarspotting.com

    Radarspotting since 2005

  10. #10
    Captain Anmer's Avatar
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    Ah. I think I now understand what you're asking.

    "Why do I not see traffic on Skyview in the Dusseldorf area?"

    It depends on your antenna and it's location? And possible obstacles between it and aircraft over Dusseldorf, espcially for ones at lower altitude.
    Mike


    www.radarspotting.com

    Radarspotting since 2005

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