US Army mobile Radar WW2

Looking to the left side of the image can be seen Telegraph Poles indicating that the location is an elevated area above a railway cutting?

This almost looks like the SCR-584 is sitting on top of an HAA Command Post, but that doesn't make much sense. Didn't the Dymchurch Redoubt have a couple of AA emplacements? I don't know the area, but is it possible this could have been taken on top of the Redoubt? I'm not convinced either is much of a possibility, but am throwing up suggestions in the hope that it might help pin down the location.

Cheers,

Ian