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Thread: Few position reports ?!?

  1. #21
    Captain
    Join Date
    Apr 2018
    Posts
    751
    Quote Originally Posted by Talle View Post
    Changed the dongle at about 0930Z. Lets see if it will start to fall again after a few days.
    If you went from a dongle with builtin LNA to one without LNA it's not that surprising. The LNA can get more easily overloaded with noise, so if you don't have a filter in front of the LNA, not using an LNA can be better.

  2. #22
    Passenger
    Join Date
    Jan 2019
    Location
    Norway
    Posts
    27
    Hmm, do you say that the dongle gets tired of overloading over time ? Is this permanent "damage" or will it get back to normal after some rest ?

  3. #23
    Captain
    Join Date
    Apr 2018
    Posts
    751
    The dongle is not damaged, no worries!

    I'm just saying numbers fluctuate with ADS-B with weather.
    And noise fluctuates much more than you might think. For example imagine a LTE (mobile data) receive/send mast near you. No one is using it. So most of the time it's not sending and saving power. Your reception when only few people are using LTE will be good.
    On the weekend reception will be bad, because maybe more people are using it and it is sending all the time.

    All i was saying depending on the TYPE of dongle you are using will change the reaction to noise.
    If the dongle has an amplifier in it like the yelllow flightaware it might react much more to certain noise (bad reception) than the jetvision dongle which has no internal amplifier.

    Hope that make some sense.

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