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Marconisti
A radio operator (also, formerly, a wireless operator in British and Commonwealth English) is a person who is responsible for the operations of a radio system and the technicalities in broadcasting. The profession of radio operator has become largely obsolete with the automation of radio-based tasks in recent decades. Nevertheless, radio operators are still employed in Maritime transport, maritime and aviation fields. In most cases radio transmission is now only one of several tasks of a radio operator. In the United States, the title of Certified Radio Operator (United States), Certified Radio Operator is granted to those who pass a test issued by the Society of Broadcast Engineers. The role of 'Wireless Operator' aboard aircraft during WWII was often abbreviated to 'WOp' or 'WOP' in official documents or obituaries. See also * Wireless telegraphy * Wireless (other) * John George Phillips (Wireless Telegraphist) External links References Profession ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polarstern Radioroom Hg
RV ''Polarstern'' (meaning pole star) is a German research icebreaker of the Alfred Wegener Institute for Polar and Marine Research (AWI) in Bremerhaven, Germany. ''Polarstern'' was built by Howaldtswerke-Deutsche Werft in Kiel and Nobiskrug in Rendsburg, was commissioned in 1982, and is mainly used for research in the Arctic and Antarctica. The ship has a length of 118 metres (387 feet) and is a double hull, double-hulled icebreaker. She is operational at temperatures as low as . ''Polarstern'' can break through ice thick at a speed of . Thicker ice of up to can be broken by ramming. History On 7 September 1991, ''Polarstern'', assisted by the Sweden, Swedish arctic icebreaker , reached the North Pole as the first conventional powered vessels. Both scientific parties and crew took oceanographic and geological samples and had a common tug of war and a association football, football game on an ice floe. In 2001, ''Polarstern'' together with reached the pole again. She returned f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Times - 1923-12-21 - P500 (RAF Advert)
Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves. They can be received by other antennas connected to a radio receiver; this is the fundamental principle of radio communication. In addition to communication, radio is used for radar, radio navigation, remote control, remote sensing, and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave by varying some aspect of the wave) in the transmitter. In radar, used to locate and track objects like air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio
Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves. They can be received by other antennas connected to a radio receiver; this is the fundamental principle of radio communication. In addition to communication, radio is used for radar, radio navigation, remote control, remote sensing, and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave by varying some aspect of the wave) in the transmitter. In radar, used to locate and track ob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maritime Transport
Maritime transport (or ocean transport) or more generally waterborne transport, is the transport of people (passengers or goods (cargo) via waterways. Freight transport by watercraft has been widely used throughout recorded history, as it provides a higher-capacity mode of transportation for passengers and cargo than land transport, the latter typically being more costly per unit payload due to it being affected by terrain conditions and road/rail infrastructures. The advent of aviation during the 20th century has diminished the importance of sea travel for passengers, though it is still popular for short trips and pleasure cruises. Transport by watercraft is much cheaper than transport by aircraft or land vehicles (both road and rail), but is significantly slower for longer journeys and heavily dependent on adequate port facilities. Maritime transport accounts for roughly 80% of international trade, according to UNCTAD in 2020. Maritime transport can be realized over an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' include fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Clément Ader built the "Ader Éole" in France and made an uncontrolled, powered hop in 1890. This was the first powered aircraft, although it did not achieve controlled flight. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896. A major leap followed with the construction of the '' Wright Flyer'', the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet engine which enabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Certified Radio Operator (United States)
Certified Radio Operator (CRO) is a title granted to an individual in the United States who passes the examination requirements of the certification. The certification is regulated by the Society of Broadcast Engineers. The CRO title is protected by copyright laws. The U.S. Federal Communications Commission (FCC) previously required radio announcers to hold a Third-class License, which was later relaxed to simply require a Restricted Operator's Permit. There is currently no FCC requirement for radio announcers. The Radio Operator Certification exam covers much of the information required for a Third-class license, and demonstrates proficiency in radio station operation. The SBE certifications were created to recognize individuals who practice in career fields which are not regulated by state licensing programs. Radio announcers are no longer regulated at the national level. See also *List of post-nominal letters Post-nominal letters are letters placed after the name of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Society Of Broadcast Engineers
The Society of Broadcast Engineers (SBE) is a professional organization for engineers in broadcast radio and television. The SBE also offers certification in various radio frequency and video and audio technology areas for its members. Background The organization was founded in 1964. The society elected its first female president, Andrea Cummis, in 2021. Certifications Operator Level Certifications * Certified Radio Operator (CRO) * Certified Television Operator (CTO) Broadcast Networking Certifications * Certified Broadcast Networking Technologist (CBNT) * Certified Broadcast Networking Engineer (CBNE) Engineer Level Certifications * Certified Broadcast Technologist (CBT) * Certified Audio Engineer (CEA) * Certified Video Engineer (CEV) * Certified broadcast radio engineer (CBRE) * Certified Broadcast Television Engineer (CBTE) * Certified Senior Broadcast Radio Engineer (CSRE) * Certified Senior Broadcast Television Engineer (CSTE) * Certified Professional Broad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WWII
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Safety Network
The Flight Safety Foundation (FSF) is a non-profit, international organization concerning research, education, advocacy, and communications in the field of aviation safety. FSF brings together aviation professionals to help solve safety problems and bring an international perspective to aviation safety-related issues for the public. History Since its founding in 1945, the foundation has acted as a non-profit, independent clearinghouse to disseminate safety information, identify threats to safety, and recommend practical solutions, like, for example, the Approach and Landing Accident Reduction (ALAR) toolkit. Today, the foundation provides leadership to more than 1000 members in more than 100 countries. The Aviation Crash Injury Research (AvCIR) Division initiated by Hugh DeHaven became part of FSF in April 1959, being transferred from Cornell University. Objectives The main foundation's stated objectives are to: * Anticipate, identify and analyze global aviation safety issues an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Telegraphy
Wireless telegraphy or radiotelegraphy is the transmission of text messages by radio waves, analogous to electrical telegraphy using electrical cable, cables. Before about 1910, the term ''wireless telegraphy'' was also used for other experimental technologies for transmitting telegraph signals without wires. In radiotelegraphy, information is transmitted by pulses of radio waves of two different lengths called "dots" and "dashes", which spell out text messages, usually in Morse code. In a manual system, the sending operator taps on a switch called a telegraph key which turns the transmitter on and off, producing the pulses of radio waves. At the radio receiver, receiver the pulses are audible in the receiver's speaker as beeps, which are translated back to text by an operator who knows Morse code. Radiotelegraphy was the first means of radio communication. The first practical radio transmitters and radio receiver, receivers invented in 1894–1895 by Guglielmo Marconi used radi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless (other)
Wireless refers to the transfer of information signals without using wires. The term may also refer to: Electronic communications * Wireless LAN, a wireless local-area computer network * Wireless network * WiMAX, a wireless wide-area computer network * Bluetooth, a wireless system for data communications between devices * Wireless phone, a less-often used name for a mobile phone * Wireless, former British and Commonwealth term for a radio receiver * Wireless telegraphy, an early form of radio technology Other electronics * Wireless charging, or inductive charging, the transfer of energy through electromagnetic induction Music * Wireless (band), a Canadian rock band from the 1970s and 1980s * ''Wireless'' (Wireless album), 1976 debut album by the band Wireless * ''Wireless'' (Threshold album), 2003 album by the band Threshold * Wireless Festival, a music festival held every year since 2005 in Hyde Park, London * "Wireless", a song from the 1996 Cardiacs album ''Sing to Go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John George Phillips (Wireless Telegraphist)
John George "Jack" Phillips (11 April 1887 – 15 April 1912) was a British sailor and the senior wireless operator aboard the ''Titanic'' during her ill-fated maiden voyage in April 1912. Before the collision with the iceberg, Phillips and his assistant, Harold Bride, had acknowledged and passed along several ice warnings to the bridge. As the ship sank, Phillips did his utmost to contact other ships for assistance and coordinated a successful rescue effort with . He did not survive the sinking and his body, if recovered, was not identified. Early life Phillips was born on 11 April 1887 in Farncombe, Surrey. The son of George Alfred Phillips, a draper and Ann Phillips (née Sanders), Phillips' family originally came from Trowbridge, Wiltshire, from a lineage of weavers, but moved to Farncombe around 1883. Phillips lived with his five siblings, of whom only two twin sisters survived to adulthood, above a draper's shop – Gammons – which his father managed in Farncombe Stre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
