Ghost traffic that follows you
The target that follows you everywhere, at your altitude and a fraction of a mile away, is almost always your own aircraft.
Why it happens
If your aircraft has a transponder or ADS-B Out, ground stations track it and rebroadcast traffic, which can include your own aircraft. Stratux hears that and passes it to your EFB, which draws you as a nearby target. It's sometimes called a TIS-B "shadow."
The fix: tell Stratux your own aircraft's code
- In flight (or with a passenger operating the tablet), open 192.168.10.1 → Traffic.
- Find the target at your altitude about 0.1 nm away and note its ICAO hex code (six characters, such as A1B2C3).
- Or look up your aircraft's hex code in the FAA aircraft registry (it's listed as the "Mode S Code (Base 16 / Hex)").
- Open Settings in the web interface and enter the code in the ownship (Mode S code) field.
Stratux then leaves your own aircraft out of the traffic it sends to your EFB.
Traffic altitudes look wrong?
That's a related setting. If traffic altitudes look off in ForeFlight®, turn off the ownship setting in the Stratux web interface. See Using Stratux with ForeFlight®.
Why you see more traffic some days
The FAA's ground stations send TIS-B and ADS-R traffic to the area around aircraft that are broadcasting ADS-B Out. If no ADS-B Out aircraft are nearby, you may see less relayed traffic, even with good station coverage. Direct 1090 MHz traffic doesn't depend on this. The pilot's guide to ADS-B explains it in detail.