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Document Part No. E5500-90024Ed. 1.0
3
Measure the monitor output voltage on the AM detector with an
oscilloscope or voltmeter. Locate the diode detector's dc voltage
along the bottom of the AM sensitivity graph
Moving up to the diagonal calibration line and over, the
equivalent phase detector constant can then be read from the left
side of the graph. The measured data will be plotted as
single-sideband AM noise in dBc/Hz.
4
Measure noise data and interpret the results.
NOTE: The quadrature meter should be at zero volts due to the
blocking capacitor at the AM detector's output.
E5500 Phase Noise Measurement System Version A.02.00
AM Noise Measurement Fundamentals
Method 1: User Entry of Phase Detector Constant
12
(Figure
12-8).
12-13
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