cross keying — n. the deliberate process of combinating a cylinder (usually in a master key system) to two or more different keys which would not normally be expected to operate it together. See also controlled cross keying and uncontrolled cross keying … Locksmith dictionary
Counter-intelligence — This article is a subset article of intelligence cycle security. National intelligence programs, and, by extension, the overall defenses of nations, are vulnerable to attack. It is the role of intelligence cycle security to protect the process… … Wikipedia
Counterintelligence — This article is a subset article of intelligence cycle security. Counterintelligence or counter intelligence (see spelling differences) (CI) refers to efforts made by intelligence organizations to prevent hostile or enemy intelligence… … Wikipedia
Morse code — Chart of the Morse code letters and numerals Morse code is a method of transmitting textual information as a series of on off tones, lights, or clicks that can … Wikipedia
United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… … Universalium
Junk (ship) — This article is about the history of the sailing vessel in China. For modern developments and sailing techniques, see Junk rig. A junk from the 13th Century, Song Dynasty … Wikipedia
Continuous wave — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Shortwave radio — Shortwave can also refer to a shortwave trough meteorology. A solid state, analog shortwave receiver Shortwave radio refers to the upper MF (medium frequency) and all of the HF (high frequency) portion of the radio spectrum, between… … Wikipedia
List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… … Wikipedia
Smart grid — Public infrastructure … Wikipedia
