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Absolute Measurement Examples
Free-Running RF Oscillator
If the output amplitude of your UUT is not sufficient to provide an adequate
measurement noise floor, it will be necessary to insert a low-noise amplifier
between the UUT and the test set. Refer to "Inserting an Device" in
Chapter 6, "Absolute Measurement Fundamentals"
for details on
determining the effect the amplifiers noise will have on the measured noise
floor.
VCO Reference
In order for the noise measurement results to accurately represent the noise
of the UUT, the noise level of the reference source should be below the
expected noise level of the UUT.
7-30 Agilent Technologies E5500 Phase Noise Measurement System
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