BinaryMode
Active Member
Reason I ask is that I monitor the civilian and military guard frequencies 24/7 and sometimes when I hear ATC needing to wake up a sleeping pilot I check the computer in front of me running adsbexchange to see where the plane is at. Unbelievably, and more times than not, the radio transmission I hear was directed at a plane some 200 miles from me. So I'm betting simulcast is being used here and I'd like to know where my scanner is picking up the ATC radio site near me.