... antenna halyard 天线升降索 antenna impedance meter 天线阻抗测定器 antenna insulator 天线绝缘女 ...
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antenna a impedance meter 天线阻抗测定器
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When using frequency sweep meter to measure the input impedance of antenna, the balanced - unbalanced transformer must be connected between coaxial transmission line and antenna.
用扫频仪测量天线的输入阻抗时,在同轴传输线与天线间应按平衡—不平衡变换器。
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