have a look at this thread. plenty of info for what you need. be patient go trough all the posts.
https://discussions.flightaware.com/t/optimize-gain-which-would-you-chose/33817
have a look at this thread. plenty of info for what you need. be patient go trough all the posts.
https://discussions.flightaware.com/t/optimize-gain-which-would-you-chose/33817