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Fig. 8.23 Connection in Small Signal Gain and Flatness Measurement
5) Connect the amplifier as shown in Fig. 8.23 and provide the DC bias.
6) Set the analyzer corresponding to the tested amplifier.
7) Remove and calibrate the amplifier. The attenuator, coupler and cable used in measurement must be included in calibration.
8) Reconnect the amplifier.
9) Set the scale of measurement display to facilitate observation. Read the small signal gain at the corresponding frequency point
through the marker.
10) Observe the peak-peak ripple within the whole frequency range through the marker to measure the gain flatness.
11) Print or save the data.