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Thread: Receiver & wifi bridge

  1. #1
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    Receiver & wifi bridge

    This is what happen when i've displaced the 5ghz UBNT wifi bridge just at the bottom of my FR24 official antenna.

    fr24-1.jpg

  2. #2
    Team FR24 Mike's Avatar
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    The ADS-B signal can be destroyed if there are any other signal transmitters nearby. Especially GSM signals (880-960 MHz) are bad as they use similar frequency as ADS-B (1030-1090 MHz).
    If you are a FR24 box feeder and have problems with frequency interference please contact support@fr24.com to check the possibility to install a special filter to remove the interference.

  3. #3
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    Have you also noticed problems with DTV or FM broadcast ?

  4. #4
    Flight attendant
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    how do i know a frequency interference?

    If there is such a thing,
    How can we detect it?

  5. #5
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    Quote Originally Posted by Mike View Post
    The ADS-B signal can be destroyed if there are any other signal transmitters nearby. Especially GSM signals (880-960 MHz) are bad as they use similar frequency as ADS-B (1030-1090 MHz).
    If you are a FR24 box feeder and have problems with frequency interference please contact support@fr24.com to check the possibility to install a special filter to remove the interference.
    Hi

    I've sent a mail last week but no response

  6. #6
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    Always ne response from FR24 team

    So we've made some change to the installation :

    Radio circulator is replaced by a Nortel GSM cavity filter modified for 1090mhz
    Antenna is moved from the roof to the tower at 15m
    Bad sat cable provided by FR24 is replaced.

    => +40% aircraft seen, +50NM range


    Next step :

    Move the antenna out of the tower
    Change the antenna by a TV panel modified
    Add an amplifier behind the antenna

    after.jpgberfore.jpgfilter.jpg

  7. #7
    Captain Anmer's Avatar
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    Quote Originally Posted by ginie View Post
    Always ne response from FR24 team
    Do you have a Support reference number? All Support messages get sent an acknowledgement email with a reference number.
    Mike


    www.radarspotting.com

    Radarspotting since 2005

  8. #8
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    The number is 47656.

  9. #9
    Captain Anmer's Avatar
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    Can I suggest you reply to Support@FR24.com quoting that reference number and ask what is happening?
    Mike


    www.radarspotting.com

    Radarspotting since 2005

  10. #10
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    Just out of interest, are you using UBNT POE injectors; and if so are you using shielded ethernet cabling?

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