I’m definitely not installing my old spider again. I was simply wondering if any of you had a similar observation in regards to a stick upgrade and a direct decrease in performance
I am not saying you should revert your setup, but consider the circumstances
Your positions have improved quite well looking at your graphs today 
Aircraft show a 10% increase since you have changed the hardware so things are looking good I guess.
My setup is also doing better with the new hardware attached:
Postions have doubled in comparison with the old hardware.
That was to be expected since the old setup doesn’t have LNA and filtering builtin.
The aircraft count is up 40% compared to the old hardware as well.
It sees more aircraft
The range went up
And the signal levels are better as well.
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Thank you! Things definitely improved drastically. Now I’m struggling to hook up an external wifi-dongle to my Pi without it randomly disconnecting my SDR from my usb bus(?) I think - might be bad shielding? Currently running it without the flat usb cord (used to be from sdr to pi) and it looks okay…
Hopefully theres a way to avoid all of that while being able to keep my pi inside
This could be related the USB setup on RPI4s and older. They share one USB bus. The RTL-SDR is fighting for USB bandwidth with the WiFi dongle.
I ran into this issue when I tried to run an airspy at the same time as an rtl-sdr.
Hé doesn’t have an RTLSDR, I used that for my test setup. 
But that’s for the shared data only, not the power itself, right?
I am using frequently the PI4 with the Airspy dongle and i am powering the Uputronics filter via USB from the same device.
No issues so far in terms of Airspy performance
Why?
The pi has builtin wifi.
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I know, yet it’s not the end all be all.
I switched to my Pi4 with the Airspy mini for testing purposes and that’s the current performance for your refrerence. Location is 30 miles west of EDDF
It is a shared data issue only. I also run an airspy with a USB cable to power a uputronics filter without issues.
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That confirms my guess. Thanks
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Appears to be an issue with my poorly shielded flat USB cable, seems to be running perfectly if I use a thicker replacement. I guess the wifi antenna is frying the SDR signals..
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airspy uses a lot more bandwidth.
doubt a wifi dongle would be an issue with an rtl-sdr.
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additional USB cables or extensions are often a good source for trouble.
Sure are, but such a straightforward way to route it through my window/frame