Beacon -light- is just a simple beacon monitoring program.
All beacons are controlled precisely by GPS. That’s why the PC-Clock has to be set precisely as well. In the bottom of the window select the band to be monitored (the arrow keys can be used). The actual active beacon is shown with lime background. Simultaneously the call is displayed in the upper left corner in greater size. Right top the time with the necessary seconds is displayed in order to check. UTC or local is not critical, because the transmission is min/sec-controlled and the hour doesn’t play any role. The transmission scheme in the upper center is only for information and is not time controlled.