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English: KGB-forged “FM 30-31B, Stability Operations, Intelligence – Special Fields” was among material provided to Cryptome in May 2001 by the U.S. Army Intelligence and Security Command (INSCOM) responding to a Freedom of Information Act request for an INSCOM file titled “Disinformation Directed Against US, ZF010868W,” quoted Active Measures, New York: Farrar, Straus and Giroux, 2020.
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Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
Morse code is called the original digital mode. Radio telegraphy, designed for machine-to-machine communication is the direct on / off keying of a continuous wave carrier by Morse code symbols, often called amplitude-shift keying or ASK, may be considered to be an amplitude modulated mode of communications, and is rightfully considered the first digital data mode.
Wide FM, 20.0 kHz width, ±5 kHz deviation, still widely used for amateur radio, NOAA weather radio, marine, and aviation users and land mobile users below 50 MHz [2] 11K2 F3E Narrow FM, 11.25 kHz bandwidth, ±2.5 kHz deviation – In the United States, all Part 90 Land Mobile Radio Service (LMRS) users operating above 50 MHz were required to ...
The term SCR was part of a nomenclature system developed for the U.S. Signal Corps, used at least as far back as World War I.Three-letter designators beginning with "SC" were used to denote complete systems, while one and two-letter designators (such as "BC", for basic component, "FT" for mounting, etc.) were used for components.