Sorry, other things to get to. Anyway, Heidelburg I'll take as close enought. The actual radar was coded Kliene Heidelburg. In operation it was syncronized to a CH station for transmission timing. It then measured the direct path transmission time and the reflected target return time (which was slightly longer). From that range could be determined. The target position was given as an arc that over time could be refined to a track of actual target position.
So, Knightmove gets it.