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Hallicrafters SX-28
The Hallicrafters SX-28 "Super Skyrider" is an American shortwave communications receiver that was produced between 1940 and 1946 that saw wide use by amateur radio, government and military services. History In July 1940, the Hallicrafters Company announced the SX-28 "Super Skyrider", the result of a development effort by 12 staff engineers and analysis of more than 600 reports that included input from U.S. government engineers, commercial users, and amateur radio operators. The SX-28's distinctive art deco styling was considered sleek and strikingly modern in 1940. The radio frequency coverage was 550 kHz (0.55 MHz) to 43 MHz in six bands. The SX-28 included an Amplified AVC, a Lamb Noise Silencer, Calibrated bandspread, and Push-Pull audio output. The SX-28 was known for its high fidelity audio together with high sensitivity, stability and selectivity, and good purchase value.http://www.radioblvd.com/SX28Notes.html Western Historic Radio Museum, ''The Hallicrafters ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SX28front
SX, Sx, sx, or Sx may refer to: In medicine * Sx, symptoms * Sx, surgery In music * SX (band), a Belgian indie pop band * S-X (producer), a British producer and singer In technology: * .sx, the country code top-level domain for Sint Maarten * Betacam SX, a type of videotape for Betacam * 1000BASE-SX, a fiber optic gigabit Ethernet standard * MAN SX, a range of high mobility tactical trucks * Parallax SX, a range of micro-controllers made by Ubicom * NEC SX architecture of supercomputers Other uses: * ''SX News'', a gay and lesbian newspaper in Australia * Skybus Airlines (IATA airline code SX) * AMA Supercross Championship, a form of off-road motorcycle racing * Shanxi, a province of China (Guobiao abbreviation SX) * Ŝ, a letter in the Esperanto alphabet See also * ''Sx Tape'', a 2013 horror film * Regulation S-X Regulation S-X is a prescribed regulation in the United States of America that lays out the specific form and content of financial reports, specifically the finan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bletchley Park
Bletchley Park is an English country house and estate in Bletchley, Milton Keynes ( Buckinghamshire) that became the principal centre of Allied code-breaking during the Second World War. The mansion was constructed during the years following 1883 for the financier and politician Sir Herbert Leon in the Victorian Gothic, Tudor, and Dutch Baroque styles, on the site of older buildings of the same name. During World War II, the estate housed the Government Code and Cypher School (GC&CS), which regularly penetrated the secret communications of the Axis Powersmost importantly the German Enigma and Lorenz ciphers. The GC&CS team of codebreakers included Alan Turing, Gordon Welchman, Hugh Alexander, Bill Tutte, and Stuart Milner-Barry. The nature of the work at Bletchley remained secret until many years after the war. According to the official historian of British Intelligence, the "Ultra" intelligence produced at Bletchley shortened the war by two to four years, and without it th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Radio Systems Of The United States
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct military uniform. It may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of the military is usually defined as defence of the state and its interests against external armed threats. In broad usage, the terms ''armed forces'' and ''military'' are often treated as synonymous, although in technical usage a distinction is sometimes made in which a country's armed forces may include both its military and other paramilitary forces. There are various forms of irregular military forces, not belonging to a recognized state; though they share many attributes with regular military forces, they are less often referred to as simply ''military''. A nation's military may f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio Receivers
An amateur () is generally considered a person who pursues an avocation independent from their source of income. Amateurs and their pursuits are also described as popular, informal, self-taught, user-generated User-generated content (UGC), alternatively known as user-created content (UCC), is any form of content, such as images, videos, text, testimonials, and audio, that has been posted by users on online platforms such as social media, discussion f ..., do it yourself, DIY, and hobbyist. History Historically, the amateur was considered to be the ideal balance between pure intent, open mind, and the interest or passion for a subject. That ideology spanned many different fields of interest. It may have its roots in the ancient Greek philosophy of Amateur sports, amateur athletes competing in the Olympic Games, Olympics. The ancient Greek citizens spent most of their time in other pursuits, but competed according to their natural talents and abilities. The "gentleman amate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
