These two small constructions in a farm field to the west of the village of Sainte-Croix-Hogue are former antenna buildings used for jamming Allied radio signals.
Known as Station Fledermaus (Bat), this Lufwaffe-run site was one of several established in the area with others near Bayeux and Mont Etolan on the east Cotentin peninsula.
It stands on high ground with a clear view west towards the Channel Islands and north into the English Channel and featured two jamming antenna, one per building.
Nearby were tradiitonal German radar stations for both air and sea detection.
Both buildings are concrete and brick built with two storeys and designed to look like houses rather than bunkers.
They are both peppered with marks on the outside walls from being hit by heavy calibre machine gun rounds although none of them penetrated to the inside due to the 2ft thick walls.
Inside the staircases to the second floors are missing, but you can see the marks where the stairs once stood, along with the beams which would have supported an upper floor, and several fireplace-like reccesses which housed electronic equipment.
Both buildings have purpose-built rectangular apertures around 1.5m by 50cm in size in their thick concrete roofs where the cabling and controls for the roof-mounted antenna would have entered the structures.
On one second floor wall next to an apeture you can see the feint remains of a hand-drawn scorechart-type grid with lettering, although this may be post war.
They stand on private land and cannot be visited without permission.