Having been using an Pi 2 for four years together with the old blue SDR USB receive and stock antenna. I decided to get the new Pi 3 and as well the new USB Orange Dongle from FA and the FA antenna.
The old set up is in the attic (can use the roof) using the stock antenna cut to 67 mm using a metal can as ground-plane connected to the the USB SDR with the stock cable and the USB SDR directly to a USB port on the Pi 2.
When I finally got the new components from the US and UK I got a BIG surprise as the average number of flight went down with more than 60%.
The cable between the FA antenna and the FA USB Dongle is 3 m type LMR-200 (50 ohm).
Any suggestions to why I am getting 60% less with the new setup?