PlanePlotter feeds get lower reports per aircraft


#1

Why do PlanePlotter reports rate less than direct RPi feeds? Antennas for these sites have a similar coverage but PP feeds produce only about half the reports.

site - sharecode - average reports per aircraft over last 15 days
141 - Eb PP feed 54
287 - yr PP feed 57
9329 - Ic PP feed 53

2827 - Rpi PiAware feed 98


#2

Most of the plane plotter stats I have seen seem to have zero mlat aircraft.


#3

It is my understanding PlanePlotter MLAT data cannot be shared with FlightAware due to restrictions put in place by the developer.
Was never able to share MLAT back when I first got into this and ran PlanePlotter before moving on to PiAware. Not sure but seems I read about the inability somewhere correct me if I am wrong…


#4

Yep. See http://discussions.flightaware.com/ads-b-flight-tracking-f21/planeplotter-mlat-on-flightaware-t36479.html


#5

Aside from the mlat thing, the short answer is that Planeplotter sites have a lower report count per aircraft because, for the same messages received, Planeplotter usually produces fewer reports (after deduplication) than piaware does. (Yes, I know that’s a bit of a tautology).

Each report is a summary of recent aircraft data. Neither Planeplotter nor piaware feed every single message individually to FA. Planeplotter uses different rules to piaware for how often it reports data.