No weather or traffic on Stratux

Short answer: on the ground, no weather is normal. Stratux gets weather from FAA ground stations by line of sight, and from the ramp you're almost always out of range. It fills in after takeoff.

Why there's no weather on the ground

FIS-B weather is broadcast from ground stations on 978 MHz. In the air, a receiver typically hears a station 40–60 nm away. On the ground, hangars, terrain and the low antenna cut that to under 1 nm. Most pilots see weather appear around 1,000 ft AGL near a station.

Check where the nearest stations are on the ground station map, and read how ADS-B works for the details.

Traffic: what works on the ground and what doesn't

  • 1090 MHz traffic broadcast directly by nearby aircraft works on the ground.
  • 978 MHz ground-relayed traffic (TIS-B and ADS-R) generally needs altitude, radar coverage, and an ADS-B Out–equipped aircraft nearby for the ground station to serve. If your aircraft doesn't have ADS-B Out, you'll only see relayed traffic generated for nearby aircraft that do. That picture is incomplete by design. See what you see without ADS-B Out.

Still nothing in the air? Check these

  1. Is the weather layer turned on in your EFB? Stratux has no map of its own; your app has to display the data.
  2. Is your EFB connected? Confirm the tablet is on the Stratux Wi-Fi network and the app shows the receiver.
  3. Open the status page at 192.168.10.1 and look at the UAT message count. If it climbs in flight, Stratux is receiving and the issue is in the app.
  4. Check the antennas are attached, hand-tight, and on the right ports. See Antennas.
  5. Are you in range? Outside the US and Canada there's no 978 MHz UAT weather at all. Only 1090 traffic.

Traffic looks wrong

  • Wrong altitudes in ForeFlight®-compatible setups: turn off the ownship setting in the Stratux web interface.
  • Missing distant traffic: many EFBs, including ForeFlight, only show traffic within about ±3,500 ft of you.
  • "Ghost" or shadow traffic near your own position: usually TIS-B behavior when ground stations rebroadcast your own aircraft. It's a known quirk of the system, not a Stratux fault.

ADS-B traffic is advisory. A quiet display means "no traffic shown," never "no traffic." Keep looking outside.