| 摘要 |
PURPOSE:To measure the output impedence of facsimile transceiver, by performing two times voltage measurments and simple calculation. CONSTITUTION:The output frequency of the constant voltage sinusoidal wave generator 3 is set to the specified frequency, and the value Vo if the AC voltmeter 6 is read in with the transmitting condition of the facsimile transceiver 1. Next, a fixed resistor 7 having resistance value Ro is connected between the connection terminals 101 and 102 and the value Vx of the AC voltmeter 6 is read. Thus, the output impedance Zx of the facsimile transceiver 1 is obtained by calculating Zx= (Vo-Vx)Ro/Vx. |
