The Model HP4191A High-frenquency Impedance Analyzer is used in measuring high-frequency characteristic of electronic elements and materials, and input or output impedance on the circuits and aerial.

• HP4 191A高频阻抗分析仪是广泛应用于电子元器件、电子材料的高频特性测量 ,以及电路和天线输入输出阻抗的测量。