Controlling Radio Spectrum Pollution from Automotive Engines - Ignition Suppression Updated * 670103

Two-way radio is supplanting television as the communication system that must be protected from vehicular interference. Because the electrical phenomena of this type of interference involve almost every portion of the vehicle, spurious radiation is a topic of serious concern to engine, chassis, and body engineers as well as those in the radio engineering field. This paper covers the history of SAE involvement in determining standards, newly discovered facts concerning ignition radiation, and methods presently used to counteract adverse effects on radio communication channels.


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