I've had a number of FlightBox / Stratux users contact me regarding missing traffic data - aircraft that are observed visually or on systems like TIS or TCAS but which never appear on ADS-B. I spent a good chunk of this past weekend researching and testing and it turns out that they're right. But the problem isn't the receiver. It appears to be the ADS-B network itself. I did a detailed write up of the testing and the results:https://www.openflightsolutions.com/the-case-of-the-missing-traffic/ I would love to get somebody to replicate the experiment and see if they get the same results. If you happen to have two ADS-B receivers and a friend who's willing to play along, please give it a try and see what kind of results you get.