This Luftwaffe radar site has a Vf for the Mammut radar. It can be found at the Kwartelpad.
Parts of the basement for the radar are still present.
With these high frequencies the length of the antenna cable plays a role. To avoid signal loss the length could be adjusted to fit the used frequency by this compensator.
The compensator is being restored.
Detail of the sliding mechanism.
With this panel the antenna cables were guided outside.
A radar also needs power.