A Progress Report on the Detroit Electromagnetic Survey

A unique research test program of vehicle electromagnetic radiation that might cause radio interference has provided data in areas not previously studied. Reports are presented on: electromagnetic radiation from single vehicles versus multiple vehicle radiation (20-1000 MHz), horizontal versus vertical polarity of radiation from vehicles (20-1000 MHz), and microwave (1-2.5 GHz) radiation from vehicles.

Included is a brief history of the automobile industry and SAE investigations of vehicle radio interference which have been undertaken since 1935.