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据瑞士勃朗·波凡里公司(BBC)声称:该公司已研制出一种结构新颖的短波大功率转动天线。发射功率可达500千瓦加百分之百调幅度。一付转动天线可以覆盖八个短波广播频段,即6、7、9、11、15、17、21、26兆赫,并可包括将来使用的13兆赫频段。天线对各向同
According to the Swiss company BBC, the company has developed a novel structure for shortwave high-power rotating antennas. Transmit power up to 500 kilowatts plus hundred percent amplitude adjustment. A pair of rotating antennas can cover eight shortwave radio bands, 6, 7, 9, 11, 15, 17, 21, 26 MHz, and can include 13 MHz band for future use. The antenna is the same