Hey all. Here is my setup for the KSBM CTAF/App feed.
Top Raspberry Pi feeding ADS-B- Raspberry Pi 3 running piaware, blue flightaware dongle, homebrew 8 element collinear antenna mounted on the roof.
Bottom Raspberry Pi feeding KSBM CTAF/App- Raspberry Pi 3 running RTL-Airband, RTL SDR dongle, homebrew half-wave flower pot antenna mounted on the roof.
All of which is self-contained on a board allowing it to hinge up into the joists for storage.