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Texas Towers were a set of three radar facilities off the eastern seaboard of the United States which were used for surveillance by the United States Air Force during the Cold War. Modeled on the offshore oil drilling platforms first employed off the Texas coast, they were in operation from 1958 to 1963. After the collapse of one of the towers ...
Radio tower in Jamshoro. Radio, television and cell towers have been documented to pose a hazard to birds. Reports have been issued documenting known bird fatalities and calling for research to find ways to minimize the hazard that communications towers can pose to birds. [19] [20]
This included the standard amateur radio stations, plus the three classes of "Special Land" stations: Experimental, Technical and Training School, and Special Amateur. The United States was divided into nine "Radio Inspection" districts, [ 31 ] and amateur and Special Land stations were issued call signs that started with the district number in ...
An amateur radio license is valid only in the country where it is issued or in another country that has a reciprocal licensing agreement with the issuing country. [42] [43] In some countries, an amateur radio license is necessary in order to purchase or possess amateur radio equipment. [44]
The Texas Towers were a set of three radar facilities off the eastern seaboard of the United States which were used for surveillance by the United States Air Force during the Cold War. Modeled on the offshore oil drilling platforms first employed off the Texas coast, they were in operation from 1958 to 1963.
The history of amateur radio, dates from the dawn of radio communications, with published instructions for building simple wireless sets appearing at the beginning of the twentieth century. [1] Throughout its history, amateur radio enthusiasts have made significant contributions to science , engineering , industry , and social services .
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