Wn225 Fort de Nacqueville bas Luftwaffestation 'Caster'
K.V.U.Gruppe Cherbourg See · AOK 7 Normandy · France
Wn225 Fort de Nacqueville Hout, Luftwaffe station 'Castor' Monitoring Unit
This was a large French slightly inland forts built to protect the western side of the naval dockyard from attack. Possibly built around the 1890's and then re-fortified by the Germans and incorporated into the Atlantikwall. But



Wn225 Fort de Nacqueville Hout, Luftwaffe station 'Castor' Funk Horch Stellung - Radio listening position.
Wn225 Fort de Nacqueville Hout, Luftwaffe station 'Castor' Monitoring Unit

Funk Horch was a monitoring intercept receiver Fu.H.E.c built in 1938 high accuracy monitoring receiver to intercept enemy radio traffic. This could be an ideal spot where the monitoring of allied aircraft flying in the this area of France.
German defence map - IGNF


Wn225 Fort de Nacqueville Hout, Luftwaffe station 'Castor' Funk Horch Stellung - Radio listening position.
45 FunkmeBenlagen - Radio measurement systems.
In this area there were at least four FunkmeBenlagen stations.
NARA Ln facilities before the invasion


Wn225 Fort de Nacqueville Hout, Luftwaffe station 'Castor' Monitoring Unit
German WWII Radio Monitoring Receiver, 1939 Type Fu.H.E.c., SW receiver with 4 wave ranges (3,53 to 25,8 MHz), made by Telefunken, serial no. 128335, 10 valves (RV2P800), metal case.
They probably would have been a small mobile unit of very highly trained radio operators that could monitor radio traffic from aircraft and ships transmissions.
17 March 2006
Wn225 Fort de Nacqueville Hout, Luftwaffe station 'Castor' Monitoring Unit

The fort early in the war, still looking like its pre war layout. A large bank of earth in the front and mounted six guns with ammunition stores set beside them.
2 x Peilstand.
Observation.
In this photo taken around 1955, but may have been earlier. It shows four large bunkers (dark slits) in the large earth bank. Some smaller buildings to the right, possibly barracks.
IGNF 1942 - IGNF 1955



Wn225 Fort de Nacqueville Hout, Luftwaffe station 'Castor' Funk Horch Stellung - Radio listening position.
Aircraft like these Blenheim flew against targets in Normandy very early in the war and the radio monitoring stations would listen out for planes trying to attack the port of Cherbourg and the airfield around the town
IWM
Wn225 Fort de Nacqueville Hout, Luftwaffe station 'Castor' Funk Horch Stellung - Radio listening position.
Cim