[Aktungbby]

Big Vern! Great Necro!< at least providing a ready-made cross you could pray to when being depth charged!??

The Metox was manufactured by a small French company in occupied Paris. It was tuned to receive the 1.5-metre (200 MHz) signals used by many British radars of the early and mid-World War II era, notably the ASV Mk. II radar used by RAF Coastal Command to attack U-boats. It is not clear whether the design was German or French or both. It was installed on German U-boats starting in 1942 and used until the end of the war.[1] The system given the official title of FuMB 1 (for Funkmessbeobachtungsgerät, Radio measuring device).

https://en.wikipedia.org/wiki/ASV_Mark_II_radar They didn't call it the Wizard War for nothing! Required reading for true ers>