Duplicate glider on CCAS VFRnav?

VFRnav Support
1

Hello,

How can we explain the duplication of this glider?

  • Did the owner tinker with an Arduino/FLARM/Stratux setup?
  • A CCAS fault?
  • A VFRnav fault?

CCAS_VFRnav
CCAS_VFRnav1146×539 188 KB

This also raises the question of being able to quickly silence the audible alarm, since these 36 aircraft do not exist… except for one.

I also had a case of an in-flight collision alert on the CCAS radar while I didn’t see the aircraft… I turned back to look for it and saw it a minute away (very far). This effect seems due to information latency.

Is it fair to conclude that there is no precise, time-coordinated temporal information tied to position in CAS systems?

Also, aircraft that appear to be arriving from afar may already be very close, and those that should be approaching us may have already passed?

Thanks for your input.

Daniel.

2

Hi Daniel,

Thanks for your observation and description. :+1:

  • ..that could certainly be, but I don’t see it as the root cause of what you’re describing

  • @H655 I don’t think it’s a direct error, maybe cache management.

  • @H655

  • How did you connect CCAS to VFRnav?

    • TCP/2000
    • UDP/4000

  • What does CCAS show on its own? Surely not a thousandfold? Or?

  • Have you paired a Stratux or Flarm to CCAS?

  • What do the received traffic data in VFRnav show? Correct there?

In general, I observe a different behavior with solutions like CCAS or Safesky etc. than when you have your own reception system (that’s what I’ll call it) on board.

Thanks again for the info, this will be clarified.

Pilot greetings,

Karsten