The Metox, named after its manufacturer, was a high frequency very sensitive radar receiver manufactured by a small French company in occupied Paris, which could detect ASV (Air to Surface Vessel radar) transmissions from patrolling Allied aircraft.
The Metox, named after it manufacturer was a high frequency very sensitive radar receiver manufactured by the METOX company, a small French outfit in occupied Paris. It was installed on German U-boats during World War II (from 1942) that could detect ASV (Air to Surface Vessel radar) transmissions from patrolling Allied aircraft.