Search results
Results From The WOW.Com Content Network
Twenty questions. Twenty questions is a spoken parlor game which encourages deductive reasoning and creativity. It originated in the United States and was played widely in the 19th century. [1] It escalated in popularity during the late 1940s, when it became the format for a successful weekly radio quiz program. [citation needed]
By June 1940, OP-20-G included 147 officers, enlisted men, and civilians, linked into a network of radio listening posts as far-flung as the Army's. OP-20-G did some work on Japanese diplomatic codes, but the organization's primary focus was on Japanese military codes.
The invention of radio is a complex and disputed topic that involves many individuals and experiments. This article provides an overview of the history and development of radio technology, from the early discoveries of electromagnetic waves to the modern applications of radio communication. Learn more about the pioneers, controversies and innovations that shaped the radio industry.
Cuban numbers station HM01. A recording of The Gong numbers station, run by the National People's Army of the German Democratic Republic, from 1988. A numbers station is a shortwave radio station characterized by broadcasts of formatted numbers, which are believed to be addressed to intelligence officers operating in foreign countries. [1]
German code breaking in World War II achieved some notable successes cracking British naval ciphers until well into the fourth year of the war, [1] using the extensive German radio intelligence operations during World War II. Cryptanalysis also suffered from a problem typical of the German armed forces of the time: numerous branches and ...
The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later adopted by other radio services, especially amateur radio. To distinguish the use of a Q-code transmitted as a question from the same Q-code ...
Wire signal. A wire signal is a brevity code used by telegraphers to save time and cost when sending long messages. The best-known code was the 92 Code adopted by Western Union in 1859. The code was designed to reduce bandwidth consumption over telegraph lines, thus speeding transmissions by utilizing a numerical code system for frequently used ...
Prowords are one of several structured parts of radio voice procedures, including brevity codes and plain language radio checks. Examples [ edit ] According to the U.S. Marine Corps training document FMSO 108, "understanding the following PROWORDS and their respective definitions is the key to clear and concise communication procedures".