74 Sentences With "radio telegraph" | Random Sentence Generator

Railroads, radio, telegraph, telephone, electricity and the internet were all the result of public-private partnerships.

When the Mackay Radio & Telegraph Company, also an American interest, signed a similar agreement with China in 1932, RCA claimed it was a breach of contract.

Charles Martel was docked for maintenance at the end of the month and had a radio telegraph installed. In early 1902, the ship made the usual visits to French Mediterranean ports.

A regular transatlantic radio-telegraph service was finally begun on 17 October 1907.Second Test of the Marconi Over-Ocean Wireless System Proved Entirely Successful. Sydney Daily Post. 24 October 1907.

The couple had seven daughters (Thelma, Alsina, Maja, Emma, Manajama, Nancy, and Francely) and a son (Richard).Policarpio Y. Cuanico, Bañas in Personality Section, The Telecom News, Philippines: 31 March 1959, p. missing. At the end of his service to the Philippine Government, Bañas was holding a first class radio-telegraph operator license, as well as a radio-telegraph civil service eligibility. He was also designated by the National Civil Defense Administration as the Chief of Telecommunications Service in Iloilo City.

The Board transferred authority to issue a ruling from the Regional Office to the national Board on December 19. On February 20, 1936, the NLRB issued its decision in Mackay Radio & Telegraph Co. The Board specifically avoided ruling on whether the replacement workers were strikebreakers and what right they had to their jobs. Instead, the Board focused almost exclusively on the fact that the employer had discriminated against the four men based on their protected union activities.Mackay Radio & Telegraph Co., 1 NLRB 201, 216.

April 13:FP3; Marowits, Ross. 2007. Astral Media Expands Across Canada with $1.08B Takeover of Standard Radio. Telegraph-Journal. April 13: B3. The sale did not include Standard's interests in Sirius Satellite Radio, Iceberg Media, Flow 93.5FM, Haliburton Broadcasting and Newcap Inc.

A relay league is a chain of message forwarding stations in a system of optical telegraphs, radio telegraph stations, or riding couriers. Early 19th century methods of this type evolved into the electrical telegraph networks of the mid-to-late 19th century.

See: Getman and Kohler, "The Story of 'NLRB v. Mackay Radio & Telegraph Co.': The High Cost of Solidarity," in Labor Law Stories, 2005.Irons, "The New Deal Lawyers," 1982. on November 9, 1935, and a hearing was conducted from December 2 to December 20.

The farmers were taught better farming methods and control of plant pest and diseases. Road and transportation were improved. The different means of communications such as radio telegraph, and postal services were introduced and modernized. The town of Santa Maria was benefited by these changes.

28 In 1908, the U.S. Army Signal Corps built a radio telegraph tower in town, replacing the cable telegraph system to Valdez and Seattle. The tower was the tallest structure in town for decades.Gold Rush Town, p. 44. In 1909, Fairbanks gold production peaked at more than $9.5 million.

He was also a major in the Minnesota Home Guard during World War I. In 1927 Bellows was appointed as one of the first members of the Federal Radio Commission, predecessor of the Federal Communications Commission. He was technical adviser to the first International Radio Telegraph Conference that year.

In 1904, he established a commercial service to transmit nightly news summaries to subscribing ships, which could incorporate them into their on-board newspapers. A regular transatlantic radio-telegraph service was finally begun on 17 October 1907Second Test of the Marconi Over-Ocean Wireless System Proved Entirely Successful. Sydney Daily Post. 24 October 1907.

Mackay Radio & Telegraph Co.': The High Cost of Solidarity," in Labor Law Stories, 2005.Atleson, Values and Assumptions in American Labor Law, 1983.Matheny and Crain, "Disloyal Workers and the 'Un-American' Labor Law," North Carolina Law Review, 2004.Pope, "How American Workers Lost the Right to Strike, and Other Tales," Michigan Law Review," 2004.

Strikes may occur one after another and may overlap, or there may be long lulls between strikes. The same employer may be struck repeatedly, with sometimes as little as 24 hours between strikes.Getman and Kohler, "The Story of 'NLRB v. Mackay Radio & Telegraph Co.': The High Cost of Solidarity," in Labor Law Stories, 2005.

120 His office was equipped with recording devices (on tapes and discs), bugs, detectors, transparent mirrors, periscopes for indirect observation and sensitive photoelectric cells. His powerful Mercedes- Benz had a recording device and a two-way radio. After 1936, Moruzov established schools for preparing specialists, such as radio-telegraph operators, photo and film experts, and fingerprinters.Eşan, p.

Clarence Weston Hansell (January 20, 1898 – ) was an American research engineer who pioneered investigation into the biological effects of ion air. He was granted over 300 US patents, including, in the 1930s, a precursor to the modern ink jet printer that could print 750 words a minute, its data received via radio telegraph. Only Thomas Edison held more patents.

Her navigational aids were modern by the standards of 1950 and included LORAN, a radio direction finder, a 250-watt radio telephone and radio telegraph transmitter, and an automatic steering pilot. She had a wooden hull, a Washington Iron Works diesel engine, and two diesel generators for auxiliary power. Her large fuel capacity gave her a cruising range of .

The station, when in working order, will be lit up by > electric light, generated on the station. The Esperance Radio Telegraph > station will undoubtedly be one of the sights of Esperance. VIE formally commenced operation 21 July 1913. After the commencement of WW1, a brigade of 20 men was despatched to Esperance for the purpose of guarding the wireless station.

In the decision's final two paragraphs, the majority drew an important conclusion from the foregoing. Citing NLRB v. Mackay Radio & Telegraph Co., 304 U.S. 333 (1938), among others, Brennan held that the NLRA's protection of the right to strike is not absolute. Balancing the rights of union members to strike against the right of employers to preserve the multi-employer bargaining unit,NLRB v.

Juan Nepomuceno Arvizu Santelices was born in Querétaro, Mexico, to Pedro Arvizu and Trinidad Santelices. As a child, he assisted his father as a radio-telegraph operator. His mother encouraged him to study vocalization, solfège and harmony while he sang in a children's choir. By the age of 22 he was accepted into the Conservatorio Nacional de Música (Mexico) in Mexico City, where he continued his studies.

Accessed December 27, 2012. by the German "Hochfrequenzmaschinen Aktiengesellschaft Für Drahtlose Telegraphie" company (The High Frequency Machine Corporation for Wireless Telegraphy, often referred to as HOMAG) when the present-day Mystic Island was called Hickory Island. The tower was used to communicate with an identical radio telegraph station in Eilvese, Germany starting on Jun 19, 1914, less than two weeks before the assassination of Archduke Ferdinand.

On August 26, Haggard sent a letter to Foreign Minister Manuel Montes de Oca reminding him that South Orkneys Islands were British. The British position was that Argentine personnel was granted permission only for the period of one year. Argentine government ignored the note, "considering it out of time". On March 30, 1927, naval non-commissioned officer Emilio Baldoni established the first radio telegraph link with Ushuaia.

In United States military communications systems, commercial refile refers to sending a military message via a commercial communications network. The message may come from a military network, such as a tape relay network, a point-to-point telegraph network, a radio-telegraph network, or the Defense Switched Network. Commercial refiling of a message will usually require a reformatting of the message, particularly the heading.

George Kemp, who assisted Marconi in his early radio telegraph experiments, is buried in the cemetery. Despite the move of the crematorium and its grounds to Bassett Green Road, 78 Commonwealth service personnel who were cremated here during World War II are still commemorated in the grounds in South Stoneham by a Commonwealth War Graves Commission memorial standing amid flower beds near a lily pool.

9XM Talking: WHA Radio and the Wisconsin Idea by Randall Davidson, 2007, page 321: "Audio clips from the 'first broadcast' using the KDKA call letters don't settle the question: they're all reenactments and have fooled many radio historians (some of these clips are also now on the Internet)." Extensive regional publicity by Westinghouse heralded the upcoming broadcast, both among technically knowledgeable amateur radio enthusiasts, plus, through the organization of public listening sites, toward a more general audience of potential future radio receiver purchasers. Promotional announcements described the offering as a joint effort between Westinghouse and its International Radio Telegraph subsidiary,"To Give Election Results by Radio", Cleveland Plain Dealer, October 28, 1920, page 10. and A. E. Braun, an International Radio Telegraph officer who was also the president of the Pittsburgh Post and Pittsburgh Sun, made the arrangements for his newspapers to provide election results to the station.Chinoy (2010) page 139.

On 24 September 1900 radio telegraphy signals were exchanged regularly with the island of Heligoland over a distance of 62 km. Lightvessels in the river Elbe and a coast station at Cuxhaven commenced a regular radio telegraph service. On August 6, 1901, he would apply for . By 1904, the closed circuit system of wireless telegraphy, connected with the name of Braun, was well known and generally adopted in principle.

The union represented telegraphists and radio operators (on land and at sea) in the United States. The union had previously been involved in a Supreme Court case regarding the use of strikebreakers in strikes (NLRB v. Mackay Radio & Telegraph Co., 304 U.S. 333 (1938)), which it had lost. In 1937, the union changed its name to the American Communications Association and affiliated with the newly formed Congress of Industrial Organizations.

"The Act clearly does not forbid him, in the absence of such unfair labor practices, to replace the striking employees with new employees or authorize an order directing that all strikers be reinstated and new employees discharged."Getman and Kohler, "The Story of 'NLRB v. Mackay Radio & Telegraph Co.': The High Cost of Solidarity," in Labor Law Stories, 2005, p. 43, quoting Reply Brief for NLRB in NLRB v.

In advance of the storm, advisories and warnings were widely distributed by press, radio, telegraph and telephone. About 25,000 residents evacuated their homes; some small towns along the coast were described as "deserted". People in low-lying areas of coastal Louisiana sought shelter as storm surge from the hurricane affected the northern Gulf Coast. Residents in Texas prepared their homes and businesses for the hurricane, and boat owners pulled their craft out of the water.

Passengers who cleared customs were taken by car to railway station where they boarded trains to London using 1st class tickets. On 2 December, a Fokker F.XX, PH-AIZ Zilvermeeuw of KLM, diverted to Lympne following an engine failure. This was the only diversion KLM had during the whole of 1933. In January 1934, a new radio, telegraph and telephone link was installed at Lympne and St Inglevert which came into operation on 26 January.

In 1925, Clarence Mackay founded Mackay Radio, and added a radio network to the telegraph business. In 1928, the Mackay Radio & Telegraph Co. merged with its two cable siblings and All America Cables to form the American Cable & Radio Corporation. The majority shareholder in the new company was the International Telephone & Telegraph Co."Clarence Mackay Dies At Home Here," New York Times, November 14, 1938; Coe, Wireless Radio: A Brief History, 1996; Sobel, ITT: The Management of Opportunity 1982.

ARTA organized radio operators at Mackay Radio & Telegraph in early 1934. There were two units, one for "point-to-point" operators on land and one for operators at sea. The point-to-point operators were organized into three divisions, covering the three major employers (Mackay Radio, Globe Wireless, and RCA). In June 1935, ARTA members in the land and marine divisions at Mackay Radio decided to coordinate their bargaining so that both groups of workers might win a contract.

Employers in the United States have had the legal right to permanently replace economic strikers since the Supreme Court's 1937 decision in NLRB v. Mackay Radio & Telegraph Co."The Union Avoidance Industry in the United States", British Journal of Industrial Relations, John Logan, Blackwell Publishing Ltd, December 2006, pages 651–675. Meanwhile, employers began to demand more subtle and sophisticated union busting tactics, and so the field called "preventive labor relations" was born.Confessions of a Union Buster, Martin Jay Levitt, 1993, page 33.

The Dolphin, May 1966The Dolphin was established in 1960 by the Iloilo Maritime Academy (IMA), the former name of the institution. Nelson Torre, a Radio Telegraph student of IMA became the first editor-in-chief. The publication was named after the sea creature that commonly served as a friend to sailors. Dolphins usually like to show off to passing ships and swim the depths of the oceans for survival, thus 'The Dolphin' was coined as the official name of the publication.

The Mackay Radio & Telegraph Company was founded in 1884 by John William Mackay (a wealthy silver mine owner) and James Gordon Bennett as the Commercial Cable Company with the goal of providing transatlantic telegraph service. Mackay next incorporated the Postal Telegraph Company to expand the system across the continental United States. In 1901, Mackay formed the Commercial Pacific Cable Company to provide cable telegraphic service across the Pacific Ocean. Although Mackay died in 1902, his son, Clarence Mackay, continued to head the company.

He established himself in Brussels and continued to direct the PCF from there. In Brussels Fried created a clandestine Comintern base for all of Western Europe, in contact with Moscow through radio-telegraph and in control of the clandestine PCF. In May 1940 the Germans invaded France, which agreed to the armistice of 22 June 1940. That day Fried received a detailed directive from Comintern leader Georgi Dimitrov and Thorez on what could be done to resist the German occupying forces.

The city has telephone services, cellular mobile telephone services, wireless local coop services, satellite communication, print media, broadcast media (radio), telegraph/ telegram, postal services and fast courier delivery services provided for the public. The onset of fast and modern communication facilities resulted to the gradual phase-out of the traditional means of communication in the City. Telecommunications in the city is along the current trends although more expansion and promotion is needed. The City has three telephone service companies: PLDT, Cruztelco and Globe Telecom.

In September 1927, KGH was purchased by Mackay Radio & Telegraph Company, a subsidiary of International Telephone & Telegraph Corporation. Mackay Radio shortly thereafter installed a shortwave transmitter and replaced one of the spark gap transmitters with the new arc and tube type. On December 31, 1928, Mackay Radio announced a new more powerful transmitter would be installed by February 1929, making KGH the most powerful Marine Radio station in the Northwest. In April of that year the new transmitter was put into use by Mackay.

NLRB v. Truck Drivers Local 449 (Buffalo Linen Supply Co.) is one of a number of Supreme Court cases stemming from the Court's 1938 decision in NLRB v. Mackay Radio & Telegraph Co. Building on its ruling in Buffalo Linen Supply Co., the Supreme Court held in American Ship Building v. NLRB. that an employer may lock out its employees without violating the NLRA if a bargaining impasse has been reached and the lockout is for the purpose of applying economic pressure to support the employer's bargaining position.

The American Steamship Company was founded in 1907 in Buffalo, New York by partners John J. Boland and Adam E. Cornelius. Their first ship, the SS Yale was the first steel vessel owned by a Buffalo firm and earned large profits for the partners. Over the next five years, the company added six new vessels to their fleet. At the end of World War I, the American Steamship Company became the first Great Lakes steamship company to outfit all of its vessels with radio telegraph equipment.

The number of stations varied over the years expanding and contracting in response to commercial and industrial development. In addition to the radio-telegraph, the system also provided other services to the general public. From 1938 until 1942, under an agreement with Alberta Government Telephones, a radiotelephone service was provided at the following RC Signals stations: Edmonton, McMurray, Fort Smith, Yellowknife and Goldfields. Repeater equipment was installed in the Edmonton Radio Station with connections to the offices of the Alberta Government Telephones from where local or long distance connections were made in the normal manner.

Guglielmo Giovanni Maria Marconi, 1st Marquis of Marconi (; 25 April 187420 July 1937) was an ItalianGavin Weightman, The Industrial Revolutionaries: The Making of the Modern World 1776-1914, Grove/Atlantic, Inc. - 2010, page 357 inventor and electrical engineer, known for his pioneering work on long- distance radio transmission, development of Marconi's law, and a radio telegraph system. He is credited as the inventor of radio,Hong, p. 1 and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".

During those years Bogotá cultural life transformation accelerated, partially thanks to new communication media. Newspapers, domestic and foreign magazines, cinema, radio telegraph and telephone communications multiplied and aerial transportation linked Bogotá to the rest of the world. Waves of peasants and farmers fleeing violence and those coming to Bogotá in search for work and better opportunities tripled the population, which went from 700,000 in 1951 to 1,600,000 in 1964 and 2,500,000 inhabitants in 1973. The city modernized, expanded work fields and industry, finances, construction economic offer and education.

On January 7, 1919, Beppo de Massimi signed a cooperation agreement with the workshops at Hereter. But in December 1919, following a disagreement over the financial conditions of use of "Volateria" Raymond Vanier, then Chief of Aerodromes for Latécoère, was charged to find another location not too far away. In March 1920, a new location, 800 metres long, on a floodplain, in very poor condition and under-served with facilities was drained, flattened, gradually equipped with workshops, hangars, telephone and radio telegraph. Later nighttime lighting was installed and even, in 1932, a passenger terminal.

From 1914 to 1918 he taught at the Petrograd Polytechnic Institute, taught courses: "collector motors", "radiotelegraph generators" and directed the diploma design of radio telegraph stations and high frequency machines. In 1913-1918 he worked at the Radiotelegraph Plant of the Maritime Department, where he organized the first factory in Russia for manufacturing radio engineering measuring instruments. Since 1919, he headed the departments of radio engineering in a number of Sovet institutes, including: Institute of National Economy. G.V. Plekhanov, Military Electrotechnical Communication Academy, Moscow Electrotechnical Institute of Communications, V.N. Podbelsky and Moscow Power Engineering Institute.

In this position, Batcheller was responsible for the communication traffic of the port of New York and was commissioned to serve as the Technical Adviser to the U.S delegation of the 1927 International Radio Telegraph Conference. Batcheller is well known for his conflict with Lee De Forest, inventor and self-proclaimed "Father of Radio." In early 1920, De Forest moved his experimental radio station 2XG from the Bronx to Manhattan without obtaining government approval. As U.S. Radio Inspector of the Second District in New York, Batcheller shut De Forest down.

However, George Kemp immediately resigned from his Post Office position and joined Marconi's new company as head of engineering development. In 1948, to mark the 50th anniversary of the experiments, a bronze plaque was unveiled by the Cardiff Rotary Club inside the courtyard of the recently closed church of St.Lawrence, Lavernock, commemorating the historic radio transmissions over of open sea. The small stone hut that Marconi used to contain his experimental radio telegraph equipment still stands on the cliff edge at the end of the lane near Lower Cosmeston farmhouse.

The legal stalemate would continue for over 15 years. In 1917, NESCO finally emerged from receivership, and was soon renamed the International Radio Telegraph Company. The company limped along for a few years, until it was sold to the Westinghouse Electric & Manufacturing Company in 1920, and the next year its assets, including numerous important Fessenden patents, were sold to the Radio Corporation of America (RCA), which also inherited the longstanding Fessenden legal proceedings. Finally, on March 31, 1928, Fessenden settled his outstanding lawsuits with RCA, receiving a significant cash settlement.

The union represented telegraphists and radio operators (on land and at sea) in the United States. The union had previously been involved in a Supreme Court case regarding the use of strikebreakers in strikes (NLRB v. Mackay Radio & Telegraph Co., 304 U.S. 333 (1938)), which it had lost. In 1937, the union changed its name to the American Communications Association and affiliated with the newly formed Congress of Industrial Organizations.Downey, "Telegraph Messenger Strikes and Their Impact on Telegraph Unionization," in The Encyclopedia of Strikes in American History, 2009, p. 516.

The RRP has since been reestablished in 3rd Radio Battalion, Kaneohe HI. The RRTs of 1st and 3rd Radio Battalions still deploy in support of III MEF's 31st Marine Expeditionary Unit Alpha and Bravo cycles based in Okinawa. 1st Radio Battalion also deploys RRT's in support of I MEF's rotating 11th, 13th and 15th Marine Expeditionary Units. A six-man RRP is typically composed of a Team Leader (Staff Sergeant or Sergeant), Assistant Team Leader (Sergeant or Corporal), Point Man, Navigator, Radio-Telegraph Operator (RTO), and Assistant RTO.

Although the improvements with DC bias were significant, an even better recording is possible if an AC (alternating current) bias is used instead. While several people around the world rediscovered AC bias, it was the German developments that were widely used in practice and served as the model for future work. The original patent for AC bias was filed by Wendell L. Carlson and Glenn L. Carpenter in 1921, eventually resulting in a patent in 1927.Carlson, Wendell L. and Carpenter, Glenn W., "Radio telegraph system" (filed: 26 March 1921 ; issued: 30 April 1927).

Also on Nivalakita communications were cut with the telephone operator having to resort to sending a Morse code message, however as the storm re-curved and re-hit Tuvalu on June 14, it silenced the weak radio telegraph system. In Tepuka Savilivili the whole island was left uninhabitable as coconut trees and other vegetation were swept away with no more than an area of jagged coral left behind. With effect from June 12, a state of public emergency was declared for the whole of Tuvalu, by the then Governor-General of Tuvalu, Sir Tulaga Manuella.

The remains of Marconi's station Guglielmo Marconi built America's first transatlantic radio transmitter station on a coastal bluff in South Wellfleet in 1901–02. The first radio telegraph transmission from America to England was sent from this station on January 18, 1903, a ceremonial telegram from President Theodore Roosevelt to King Edward VII. Most of the transmitter site is gone, however, as three quarters of the land it originally encompassed has been eroded into the sea. The South Wellfleet station's first call sign was "CC" for Cape Cod.

In 1899 the R.F. Matthews was the first ship to use wireless communication to request assistance at sea. Using radio for determining direction was investigated by "Sir Oliver Lodge, of England; Andre Blondel, of France; De Forest, Pickard; and Stone, of the United States; and Bellini and Tosi, of Italy." The Stone Radio & Telegraph Company installed an early prototype radio direction finder on the naval collier Lebanon in 1906. By 1904 time signals were being sent to ships to allow navigators to check their chronometers. The U.S. Navy Hydrographic Office was sending navigational warnings to ships at sea by 1907.

In spring 1899, Braun, accompanied by his colleagues Cantor and Zenneck, went to Cuxhaven to continue their experiments at the North Sea. On 24 September 1900 radio telegraphy signals were exchanged regularly with the island of Heligoland over a distance of 62 km. Light vessels in the river Elbe and a coast station at Cuxhaven commenced a regular radio telegraph service. Braun went to the United States at the beginning of World War I (before the U.S. had entered the war) to help defend the German wireless station at Sayville, New York, against attacks by the British- controlled Marconi Corporation.

In 1963, the radio-telegraph as introduced to Slovenian railways as its operations centres were equipped with the required transmitters and receivers. The need for accurate timing presented itself only with the beginning of the railways in order to respond to the demand for regular and punctual traffic. The clocks on the posts along the railway line were regulated each day at noon to the signal given by the telegraph. On stations there is a main clock which controls the rest of the clocks by means of electricity so they all show exactly the same time.

During the Great War the Royal Navy enlisted many volunteers as radio telegraphists. Telegraphists were indispensable at sea in the early days of wireless telegraphy, and many young men were called to sea as professional radiotelegraph operators who were always accorded high-paying officer status at sea. Subsequent to the Titanic disaster and the Radio Act of 1912, the International Safety of Life at Sea (SOLAS) conventions established the 500kHz maritime distress frequency monitoring and mandated that all passenger-carrying ships carry licensed radio telegraph operators. High-paying jobs as seagoing ship's radiotelegraphy officers were still common until the late 20th century.

Son of Raffaele Biagi and Virginia Natali, was born and grew up in the early years at a farm in the Bolognese countryside, together with his brothers Cesira and Alfredo. In 1903 the family moved to Bologna, where young Giuseppe continued his studies at the Aldini technical institute (it). In 1911, he started working on boats in Rimini, then decided to study radio telegraphy at Varignano Technical School, a port location near La Spezia where he later became an instructor. He participated as a radio-telegraph operator to some important actions of the First World War, where he took the nickname of Baciccia.

NLRB v. Mackay Radio & Telegraph Co., 304 U.S. 333 (1938), is a US labor law case of the US Supreme Court which held that workers who strike remain employees for the purposes of the National Labor Relations Act (NLRA).. The Court granted the relief sought by the National Labor Relations Board, which sought to have the workers reinstated by the employer. However, the decision is much better known today for its obiter dictaBrisbin, A Strike Like No Other Strike: Law and Resistance During the Pittston Coal Strike of 1989-1990, 2002.Turner, "Restoring Balance to Collective Bargaining: Prohibiting Discrimination Against Economic Strikers," West Virginia Law Review, Spring 1994.

If the dielectric happens to be a solid, permanent physical and chemical changes along the path of the discharge will significantly reduce the material's dielectric strength, and the device can only be used one time. However, if the dielectric material is a liquid or gas, the dielectric can fully recover its insulating properties once current through the plasma channel has been externally interrupted. Commercial spark gaps use this property to abruptly switch high voltages in pulsed power systems, to provide surge protection for telecommunication and electrical power systems, and ignite fuel via spark plugs in internal combustion engines. Spark-gap transmitters were used in early radio telegraph systems.

Following the allocation of radio callsigns to Belgium of ON, OO, OP, OQ, OR, OS and OT at the 1927 International Radio-Telegraph Conference. The callsign allocation did not align with those allocated for aircraft registrations and in 1928 the International Convention of Air Navigation re-allocated the aircraft registration prefix to align with the callsigns. Belgian could use all or any letter groups that had been allocated as radio callsigns and in 1929 the prefix OO was selected. The first allocation was OO-AJT to a Stampe et Vertongen RSV 26 in March 1929 and the format was still in use in 2011.

Once he and the Spirit of St. Louis were off the ground, Lindbergh was truly alone and incommunicado. On the other hand, when the first airplane flight was made from California to Australia in 1928 on the Southern Cross, one of its four crewmen was its radio operator who communicated with ground stations via radio telegraph. Beginning in the 1930s, both civilian and military pilots were required to be able to use Morse code, both for use with early communications systems and for identification of navigational beacons which transmitted continuous two- or three-letter identifiers in Morse code. Aeronautical charts show the identifier of each navigational aid next to its location on the map.

At the 1927 International Radio-Telegraph Conference the United Kingdom was allocated radio callsign prefixes B, G, M, VP, VQ and VR. Within this new allocation the United Kingdom continued to use the prefix G- for all aircraft but the sequence was restarted at G-AAAA, which continued into the 21st century. The first registration in the sequence, G-AAAA, was allocated to a de Havilland Gipsy Moth, registered on 30 July 1928 to Geoffrey de Havilland. At first nearly all registrations were issued in sequential alphabetical order but since the 1970s personalised ("out of sequence") registrations are available using any four-letter combination. Except in very rare circumstances, no registration is ever re-issued to a different aircraft.

Mackay Radio & Telegraph Co. The Supreme Court's decision not only squared completely with the Board's brief and previous Board decisions, but also reflected the deeply conservative construction of the Act that the NLRB had taken (worried that an assertive reading and application of the NLRA would lead the Court to find the Act unconstitutional). But the Court went much further in its decision than merely deferring to the expertise of the Board. The high court deliberately utilized 19th-century judicial rulings to protect employer prerogatives at the expense of employee rights. Although the intent of the NLRA was to protect strike actions to provide workers with a source of bargaining power, Mackay Radio inverted that dynamic so that the strike became an advantage to employers.

The area that is currently Mystic Island was once called "Hickory Island", and was serviced by the Tuckerton Railroad and one two-lane street named "Shore Road", which was later renamed "Radio Road" after the Tuckerton Wireless Tower. The Tuckerton Wireless Tower () was built in 1912 by the German "Hochfrequenzmaschinen Aktiengesellschaft für drahtlose Telegraphie" company (The High Frequency Machine Corporation for Wireless Telegraphy, often referred to as HOMAG) when the present-day Mystic Island was called Hickory Island. The tower was used to communicate with an identical radio telegraph station in Eilvese, Germany starting on Jun 19, 1914, less than two weeks before the assassination of Archduke Ferdinand. The station continued to communicate with Eilvese until America entered World War I on April 6, 1917.

On January 24, 1982, during the NFL Super Bowl of 1982, some oil company employees using snowmobiles on Meeker mountain broke into the transmitter building and shutdown the transmitter so that they could receive the television signal during the game. (The powerful 100,000 watt transmitter blocked out all other air wave signals on the mountain.) The station staff often furloughed at Sleepy Cat Guest Ranch where libations were had all around. The station studios in Craig featured the first color weather radar on the Western slope with marketing agreements to Denver television stations for a signal feed. The studios were connected to the transmitter site on Meeker mountain through a state-of-the-art microwave two- way twelve-channel telemetry radio-telegraph system.

A training school was established for the first time, and a mounted troop, while the force's administration divided the province into divisions to better serve its geographically isolated regions. BCPP highway patrol officer issuing a ticket. Before its Criminal Investigation Department was established in the 1920s, the BCPP contracted private detective agencies for criminal investigations and for surveillance of suspected radicals, and was Pinkerton's biggest client in Canada. Nevertheless, over a short period of time it became one of the most modern police agencies in the world, including the first inter-city radio telegraph system fully integrated with radio-equipped cars and coastal patrol vessels in North America, using high-frequency radios were designed and built in the police workshops.

The contingent was equipped with 24 De Havilland DH.4 aircraft, powered by American Liberty engines.Barnes, Alexander F., Coblenz 1919: The Army’s First Sustainment Center of Excellence, Army Sustainment, The Professional Bulletin of United States Army Sustainment, PB 700-10-05, Volume 42, Issue 05 In March 1921, Army Engineers had erected facilities on the airfield and the Americans were moved to the airfield from the temporary facilities they occupied in the town during the winter. Occupation duties included all sorts and types of flying, such as test flights, photos of radio telegraph and radio telephone missions, joint flights with infantry, cavalry and artillery units during the winter and spring maneuvers, cross country flights and passenger carrying. A significant amount of aerial photography was taken for cartographic missions, and large mosaics of photos were created.

An application, signed by H. P. Davis, was submitted to the Eighth District Radio Inspector, S. W. Edwards in Detroit, who forwarded it to Washington, and on October 27, 1920, Westinghouse was issued a Limited Commercial station license, serial #174, with the identifying call letters of KDKA.First KDKA license: October 27, 1920 (Limited Commercial license, serial #174, issued to the Westinghouse Electric and Manufacturing Company in East Pittsburgh, Pennsylvania for a one year period.) This Limited Commercial grant was consistent with the standard practice being followed at this time, for licenses issued to companies engaging in private radio communication. Neither KDKA's original application, nor the resulting license, mentioned broadcasting, only that the station was to be used for radiotelegraphic communication with stations located at the Westinghouse facilities in Cleveland, Newark and Springfield, plus station WCG in Brooklyn, New York, which was operated by the recently acquired International Radio Telegraph.

Over the years, the Marconi companies gained a reputation for being technically conservative, in particular by continuing to use inefficient spark-transmitter technology, which could be used only for radio-telegraph operations, long after it was apparent that the future of radio communication lay with continuous-wave transmissions which were more efficient and could be used for audio transmissions. Somewhat belatedly, the company did begin significant work with continuous-wave equipment beginning in 1915, after the introduction of the oscillating vacuum tube (valve). The New Street Works factory in Chelmsford was the location for the first entertainment radio broadcasts in the United Kingdom in 1920, employing a vacuum tube transmitter and featuring Dame Nellie Melba. In 1922, regular entertainment broadcasts commenced from the Marconi Research Centre at Great Baddow, forming the prelude to the BBC, and he spoke of the close association of aviation and wireless telephony in that same year at a private gathering with Florence Tyzack Parbury, and even spoke of interplanetary wireless communication.

As the original, powerful spark gap transmitters would create large quantities of electrical interference, stations could not transmit and receive at the same time - even if different wavelengths were used. By 1913, the increasing amount of transatlantic radio telegraph traffic required that existing half-duplex operation be upgraded to a link which could carry messages in both directions at the same time. This was done by geographically separating the receiving stations from the existing transmitter sites; new receiving stations at Letterfrack, Ireland and Louisbourg, Nova Scotia effectively doubled the capacity of the Marconi Company to carry transatlantic telegraph traffic. Instead of the 500 kHz and 1 MHz frequencies common in shipboard radio at the time, Marconi was to use longwave frequencies of 37.5 kHz for transmission from Glace Bay, Cape Breton, Nova Scotia to Letterfrack and 54.5 kHz for transmission from Clifden, Ireland to Louisbourg in order to establish reliable transatlantic communication day and night.

In October, Arnold and Milling were ordered to enter the competition for the first MacKay Trophy for "the most outstanding military flight of the year." Arnold won when he located a company of cavalry from the air and returned safely despite high turbulence. As a result, he and Milling were sent to Fort Riley, Kansas, to experiment with radio and other communications from the air with the field artillery. Arnold's flight on November 2 in Wright C Speed Scout S.C. No. 10, with 1st Lt. Follett Bradley as his wireless operator, successfully sent the first radio telegraph message, at a distance of , from an aircraft to a receiver on the ground, manned by 1st Lt. Joseph O. Mauborgne of the Signal Corps.Ironically, Arnold was stationed in the Philippines as an infantry officer two years later when Mauborgne went aloft himself with Arnold's close friend 2nd Lt. Bert Dargue, and made the first two-way communication from the air to the ground, a radio station on Corregidor on December 11, 1914.

At a time when most aircraft were small, single- engine biplanes made of wood and canvas, the E-4 was a large (102-foot wingspan), all-metal, four-engine, stress-skinned, semi-monocoque, cantilevered-wing monoplane, with an enclosed cockpit, and accommodation for 18 passengers plus a crew of five, including two pilots, a radio operator, an engineer and a steward, as well as radio-telegraph communications, a toilet, a galley and separate baggage and mail storage. With a maximum speed of 143 mph, cruising speed of , a range of about , and a fully loaded weight of , it outperformed most other airliners of its day. The E-4 included numerous innovations, including its all-metal monocoque construction, onboard facilities such as lavatory, kitchen and radio communications, and its notable and sturdy monoplane load-bearing box-girder wing constructed of dural metal which formed both the wing's main girder and the structure of the wing itself. Skinned with thin sheets of dural metal to give the aerofoil shape necessary for a wing, the girder section wing had fabric covered leading and trailing edges attached to it.