As a condition of granting planning the airfield was mandated to implement an aircraft movements system. To avoid issues associated with a manual system a fully automatic system is being developed.
The 'radar' uses a series of ground stations that pick up the transponder signals from any aircraft in the area and through a technique called multi-lateration can work out the time, direction, location, height, speed on any aircraft.
If you want to 'see' what the cameras 'see' go to our 'Get you started' page here.. https://bagby.aero/whats-on-the-cameras
See this link for more information.. https://en.wikipedia.org/wiki/True-range_multilateration
The ground based cameras work together to create a 'container' of information for each aircraft's movements which then can be displayed and analsyed.
Here is a 'radar' trace of a Bagby based aircraft arriving at the airfield..