电磁发射管制（英语：CONELRAD，Control of Electromagnetic Radiation）是冷战期间美国为应对敌人攻击而设置的公众紧急广播系统。此系统有两项主要功能：避免苏联轰炸机利用美国无线电台或者电视台的信号作为无线电信标，并且向公众提供必要的民防信息。此项目是于1951年由美国总统哈利·S·杜鲁门创建。后来由于洲际弹道导弹的部署降低了敌人使用轰炸机袭击的可能性，该系统于1963年8月5日被紧急广播系统代替，最终于1997年被美国紧急广播系统取代。此系统及其后续系统均由美国联邦通信委员会管理。

CONELRAD (Control of Electromagnetic Radiation) is a former method of emergency broadcasting to the public of the United States in the event of enemy attack during the Cold War. It was intended to allow continuous broadcast of civil defense information to the public using radio or TV stations, while rapidly switching the transmitter stations to make the broadcasts unsuitable for Soviet bombers that might attempt to home in on the signals (as was done during World War II, when German radio stations, based in or near cities, were used as beacons by pilots of bombers).