Best to download the current sd-card image and write it to the sd-card, just start with number 2 on this page:
PiAware - build your own ADS-B ground station for integration with FlightAware - FlightAware
Then when before you put the sd-card into the RPi, add the feeder-id to your configuration:
For Beginners - How to Get Back Existing Station Number in A Fresh Install - #8 by abcd567