
Metox, named after its manufacturer, was a pioneering high frequency very sensitive radar warning receiver (RWR) manufactured by a small French company in occupied Paris, which could detect ASV (Air to Surface Vessel radar) transmissions from patrolling Allied aircraft. It is not clear whether the design was German or French or both. It was instal...
Found on
http://en.wikipedia.org/wiki/Metox

A special receiver that was installed on German 'U'-boats. This receiver could detect the signals from an ASV equipped aircraft. This early warning equipment allowed the surfaced 'U'-boats to escape by crash diving.
Found on
http://histru.bournemouth.ac.uk/Oral_History/Talking_About_Technology/radar
No exact match found.