] [ 9 ] JM Wave http://en.wikipedia.org/wiki/JMWAVE JMWAVE or JM/WAVE or JM WAVE was the codename for a major, secret United States covert operations and intelligence gathering station operated by the CIA from 1961 until 1968. It was headquartered in Building 25 25°37'13?N 80°23'56?W ? / ? 25.6202°N 80.3990°W ? / 25.6202;