Debugging of pronext Power Amplifier

Are you asking about the debugging steps of pronext power amplifier? 1. Use multimeter to measure whether the grid resistance and drain resistance of pronext power amplifier are normal, and determine whether the lamp tube is damaged.

2. Power on the pronext power amplifier, adjust the drain voltage and gate voltage, and observe whether the static current is normal.

3. Observe whether S 1 1 and S2 1 meet the design requirements.

4. The output terminal of the power amplifier is connected with the attenuator and then connected with the spectrometer, and the correct compensation value is set.

5. The signal source gives the debugging signal, the spectrometer is switched to IQ constellation analysis mode, and the linear index of the power amplifier is observed according to relevant indexes.

6. Assemble the same board to ensure that the performance of PCB board is consistent under the condition of consistent parameters.

7. Test the amplifier board at high and low temperatures.