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Chapter 3 69
Performance Tests
AVERAGE NOISE LEVEL TEST
Performance Tests
4. On the 11975A Amplifier, set the rear panel ALC switch to ON. Then connect the power sensor to
the free end of the cable connected to the output of the amplifier. Set the power meter calibration
factor to the value shown on the power sensor calibration label for 4 GHz.
5. Adjust the amplifier OUTPUT POWER LEVEL control for a reading of 14.5 ± 0.1 dBm
on the power meter.