I’m building a new feeder with a Pi 3B+, Airspy, bias-tee injector and an RTL-SDR LNA.
It’s on my bench at the moment so I don’t expect to see a huge amount but I expect it to be constant.
Instead, I’m seeing around 50-60 aircraft for a few minutes and then it drops down to fifteen or so where it stays like it for a few minutes and then goes back up again.
Has anyone experienced this sort of thing before? I’m loath to spend the time mounting this at the top of the mast if it’s going to carry on doing it. I’ve never seen this before.