Does anyone happen to know why I experience the following:
I run a Raspberry Pi with PiAware (latest version 3.1), which runs dump1090 and sends the data to FlightAware. I can see a good amount of aircraft on my local dump1090 web interface around me, as expected.
One thing that I can't figure out, as it related to this thread (ADSBExchange.com), is why might I be seeing more data on ADSBExchange than I see on my local dump1090 web page, which also shows MLAT flights.
As you might guess, the aircraft I am usually missing in my local dump1090 map vs. adsbexchange.com is helicopters, of which is the main reason I'm running PiAware.
Any hints would be great. I've even set up Virtual radar desktop and read from the FlightAware MLAT feed via my RasPi, and the helos I'm seeing in adsbexchange.com are definitely not in the FlightAware data. This is a common occurrence, and not just a one-off. I've been keeping an eye on it for a few weeks now.
If anyone knows why this is happening, do you happen to have a solution for me? I am mostly just interested in helos, and adsbexchange almost always shows them when they fly over my location, while my local dump1090 almost never shows them.