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bd2bh:垂直偶极天线(vertical dipole antenna)是1/2波长垂直偶极天线;垂直地网天线(Ground Plane Antenna)G.P是1/4波长垂直天线;一个中部馈电,另一个根部馈电;发射仰角不同,增益不同;一个无需地网,另一个 .. (2020-06-22 17:20)
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bg7rff:DP竖起来仰角不变低吗? (2023-02-13 09:02)
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