So I see in this topic that for Airspy users, gain experimentation is less important? I’ve done some anyway, wrote a wrapper script that restarts airspy_adsb every ten minutes with different settings. Then I have a separate script that fetches stats from Prometheus for each 10m period to see which settings perform most strongly.
It’s all pretty close and in the noise but for my setup right now 20 appears to get me slightly better results than the 21 max:
event rate, gain 17-21, mean then mesian
902.9236606005733 1040.6
937.2180315535028 1015.2666666666667
909.0329757399759 1006.0666666666667
969.3911419019122 1091.6333333333332
936.0530182543393 1025.0333333333333
num planes, gain 17-21, mean then mesian
68.36978233034571 75.0
68.65535071942446 69.0
68.13038933890776 75.0
73.67412302999492 84.0
71.01815431164901 75.0
This is over 5d of data, so on average that’s 720 10m periods, which I would think should be statistically significant. I’ll keep collecting for a few more days. (And also start doing this same experiment with other flags of course.)