radiotelegraph operator造句

• The US Federal Communications Commission does still issue a lifetime commercial Radiotelegraph Operator License.
• However, the Federal Communications Commission still grants commercial radiotelegraph operator licenses to applicants who pass its code and written tests.
• The classes were conducted by the Room 2426 crew, and the radiotelegraph operators became known as the " On-The-Roof Gang ".
• Consequently, radiotelegraph operators cannot hear interruptions from remote receiving stations during normal signal transmission periods when the full transmitter power is applied to the antenna.
• For example, for the Radiotelegraph Operator License, the examinee must pass a 20 word per minute plain text test and a 16 word per minute code group test.
• 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.
• As shown in the Federal Communications Commission database, he also earned both a General radiotelephone operator license and a commercial radiotelegraph operator's license, as well as a ship radar endorsement on these certificates.
• Early radio ( initially known as wireless telegraphy ) included many former wire telegraph operators, and within the new service " ham " was employed as a pejorative term by professional radiotelegraph operators to suggest that amateur enthusiasts were unskilled.
• It is best known for fully dispelling the myth that in 1912 David Sarnoff, while working as a New York City radiotelegraph operator, had been the first person to hear the distress call sent by the RMS Titanic and had operated as the primary contact in the subsequent communications.
• The mid-symbol listening and interruption capability provided by the short but ubiquitous Morse code silent periods during QSK or full break-in operation on " half-duplex " radiotelegraph channels creates the " illusion of apparent continuous two-way contact " allowing radiotelegraph operators to feel as if they are sharing a " full duplex " channel.