DF20/21 messages are replies to data requests from a radar station, you'll only receive these messages if Mode-S radar is actively requesting this information. You will only receive messages requested ...
The PID is optional. If it is not provided, the application will show you the selection window. You can download jmxviewer.jar from the Releases section, the size is ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results