On Tuesday, June 13, 2017 at 9:35:33 AM UTC-4, Steve Koerner wrote:
I'm pretty sure that the reason that Flarm does not provide 3D information revolves around the fact that the data available is very limited. You can get some sense for your antenna performance only by collapsing a data set into a single plane to get enough points to do some averaging. Even though collapsed into a plane, the data is still quite granular. Remember also that each data point is not a measure of own ship performance; it is the composite performance of own ship and target ship Powerflarm systems. So averaging results from multiple ships is fundamentally necessary to get meaningful information. There just isn't enough data.

That is why is makes sense to concatenate several flight recordings together. There seems to be a limit of ~4mb (~10hours) but I would suggest that flarm should allow you to put about 50-100 hours of flight data into one analysis to get the required information.
Plus collapsing into the top view plan is just as arbitrary as any other plane, they should provide the option to collapse into side view plane also.