FlightFeeder Orange Gain

FlightAware ADS-B Flight Tracking
2

There may be various reasons, but two main reasons are:

  1. Presence of very strong ADSB signals due to antenna/receiver being very close to busy flight path(s) or busy airport.

  2. Presence of strong interfering RF signals, mainly Cell/Mobile phone.

You can try different values of gain such as -10 (agc), max, 50, 45, 40, 35, 30 etc to find out which gain setting gives you best performance (plane count, message count, farthest distance you can see a plane etc).

To find the presence of Mobile/Cell phone signals, you can conduct an RF scan as detailed in following thread:

Do I Need A Filter?

NOTE: You cannot do this RF Scan in Orange. You will need a dvb-t or pro stick, and conduct it on Pi or Windows computer
.