radiotelegraphic造句

• The international assignment of call letters was codified in 1912 at the London International Radiotelegraphic Conference.
• By 1910, Girardeau established the first radiotelegraphic radio connection in tropical countries with Joseph B閠henod.
• This is after Marconi established the radiotelegraphic service between the Isle of Wight and Bournemouth in 1898.
• The same held for the chitchat of personnel at radiotelegraphic stations, where discipline was disastrously lax ."
• The " V " or Viceroy, series prefix was allotted to British colonies . at the 1912 London International Radiotelegraphic Convention.
• The 1943 decision didn't overturn Marconi's original patents, or his reputation as the first person to develop practical radiotelegraphic communication.
• Cervera thus achieved some success in this field, but his radiotelegraphic activities ceased suddenly, the reasons for which are unclear to this day.
• It was realized that the ideal radio wave for radiotelegraphic communication would be a sine wave with zero damping, a " continuous wave ".
• At the same time all civilian radio transmitters, including 9XM, were shut down, ending the radiotelegraphic weather reports for the duration of the war.
• His achievements included the first transmission of speech by radio ( 1900 ), and the first two-way radiotelegraphic communication across the Atlantic Ocean ( 1906 ).
• By the 1920s, there was a worldwide network of commercial and government radiotelegraphic stations, plus extensive use of radiotelegraphy by ships for both commercial purposes and passenger messages.
• The Berlin and London Radiotelegraphic Conventions of 1913 assigned the block VAA VGZ to Canada; however, amateur radio stations were not yet part of this international lettering scheme.
• In May June 1899, Cervera had, with the blessing of the Spanish Army, visited Marconi's radiotelegraphic installations on the English Channel, and worked to develop his own system.
• American Wireless and its subsidiaries primarily engaged in the florid promotion of stock sales at inflated prices to the unwary, and did only limited legitimate work toward its supposed goal of setting up a nationwide radiotelegraphic system.
• Starting in 1914 radio stations located at the University of North Dakota, Nebraska Wesleyan University, and the University of Nebraska established radiotelegraphic broadcasts of weather forecasts on a regular schedule, as a service for local farmers.
• In 1906, at the second International Radiotelegraphic Convention in Berlin, an extensive collection of Service Regulations was developed to supplement the main agreement, which was signed on November 3, 1906, becoming effective on July 1, 1908.
• This practice was universally adopted, and the word " radio " introduced internationally, by the 1906 Berlin Radiotelegraphic Convention, which included a Service Regulation specifying that " Radiotelegrams shall show in the preamble that the service is'Radio'".
• The Poles were able to follow the whole operation of Budionny's Horse Army in the second half of August 1920 with incredible precision, just by monitoring his radiotelegraphic correspondence with Tukhachevsky, including the famous and historic conflict between the two Russian commanders.
• At the Radiotelegraphic Convention meeting in London in 1912, the section of the Convention covering " Transmission of Radiograms " included the statement that " The signals to be employed are those of Morse International Code . " Even after this, the original Morse Code continued to be used throughout much of the United States.
• 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.