ADS-B-in
- Thread starter Krueger
- Start date
Raymo
I love aviation!
Are you in the air when testing? You generally will not pick up IN traffic until 1000-1500 feet, depending on your position relative to a ground station.
The ADSB-470 it receives on 978, which is mostly from ground stations (not many 978 out AC to date). The Stratus receives on 1090 and 978, which will pick up the signal sent from other aircraft that send out on 1090 (most common).
If you have the Dynon 472 box, it is dual band but they are working through some issues with the software and hardware.
The ADSB-470 it receives on 978, which is mostly from ground stations (not many 978 out AC to date). The Stratus receives on 1090 and 978, which will pick up the signal sent from other aircraft that send out on 1090 (most common).
If you have the Dynon 472 box, it is dual band but they are working through some issues with the software and hardware.
dwightsmall
I love flying!
- Joined
- Mar 31, 2016
- Messages
- 26
I show targets in the pattern and within 15 miles when I'm on the ground with dual the dual band 472 but don't get "ADSB OK" till I climb to about 800-1,000 feet. At that point I'm in full radar environment and get the full traffic picture (ADSB OK).
I had some anomalies that I inquired to both Dynon and AFS.
The response that I received was that the 472 will pick up ADSB peer to peer traffic on both frequencies with no filtering if there isn't a valid GPS signal. (i.e. sitting in my hangar) I was getting airline traffic 20-30K higher in the hangar.
Once a valid GPS signal is present, then normal filters are applied to reduce clutter for traffic that isn't of a concern.
Like others have said, once you get high enough to received signal from the nearest ground station, you'll get all the rest of the non-ADSB out traffic.
The response that I received was that the 472 will pick up ADSB peer to peer traffic on both frequencies with no filtering if there isn't a valid GPS signal. (i.e. sitting in my hangar) I was getting airline traffic 20-30K higher in the hangar.
Once a valid GPS signal is present, then normal filters are applied to reduce clutter for traffic that isn't of a concern.
Like others have said, once you get high enough to received signal from the nearest ground station, you'll get all the rest of the non-ADSB out traffic.