This is my current setup for ADS-B and ATC feed.
1 x RPI 3B+ for ADS-B
1 x RPI 3B+ for ATC feed
1 x Radarbox provided from Planefinder
And some network equipment.
The rack is placed in a garage and connected
wireless to the main building with a 900mhz RX/TX wifi system.
Wifi connection is about 10mb/s