制作工作频率为f(单位:兆赫兹)的半波长偶极天线。每个振子的大致长度(单位:米)为(

题型:单项选择题

问题:

制作工作频率为f(单位:兆赫兹)的半波长偶极天线。每个振子的大致长度(单位:米)为()

A.48.8/f

B.71.3/f

C.142.6/f

D.150/f

考点:业余无线电台操作技术能力验证考试业余无线电台操作技术能力验证考试B类业余无线电台操作技术能力验证考试B类题库
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