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。
2
The outputs are transformerbalanced on XLR connectors and controlled by rotary master potentiometers.