The limitations imposed by the Radio Act of 1912 led to a significant decline in the number of radio hobbyists in the United States, with approximately 88% of them ceasing their activities. The Act introduced stringent licensing requirements and restricted the frequencies that amateurs could use, confining them to wavelengths shorter than 200 meters (frequencies above 1.5 MHz). These regulations were intended to minimize interference with commercial and military communications but made it difficult for hobbyists to continue their experiments and operations. Despite this initial drop, the remaining dedicated amateurs adapted to the new regulations, ultimately contributing to advancements in radio technology and the eventual resurgence of the amateur radio community.
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