On Saturday, August 8, 2015 at 10:41:24 PM UTC-4, Andy Blackburn wrote:
Hmmm...

Not according to the Flarm Dataport Specification 7.03 released on July 30, 2015 that says no target data is put onto the serial port for targets above 2 km in distance. At 17,000' and 110 kts IAS for two head-to-head targets that's a hair over 10 seconds.

9B

I don't have that document (is it on the web anywhere?), but it sounds like you are looking at the description of the $PFLAA sentence (traffic data).

-Evan