Virtual Radar Server is an open-source .NET application that runs a local web server
You can connect to the web server with any modern browser and see the
on a map
Virtual Radar Server runs on Windows 10, 8, 7, Vista, XP and Linux (via Mono)
Tracking real aircraft
You will need a radio that is capable of receiving Mode-S transmissions.
Virtual Radar Server was written and tested using Kinetic Avionic's SBS-1er and SBS-3 radios but it will
work with any receiver or SDR that can produce the Kinetic text message format,
Kinetic's SBS-3 binary format, the AVR "*", "@" or ":"
formats or the Mode-S Beast binary format.
Tracking Flight Simulator aircraft
Virtual Radar Server can also show you the location of a simulated aircraft being
flown in Microsoft Flight Simulator X, Microsoft Flight Simulator 2020 and XPlane.
You just need to install Virtual Radar Server on the same computer that the flight
simulator is running on.