Table of Contents
Advertisement
Residual Measurement Fundamentals
Basic Assumptions Regarding Residual Phase Noise Measurements
If the UUT's are identical, a possible (but not recommended) assumption is
that the noise of each UUT is half the measured result, or 3 dB less. All that
really can be concluded is that the noise level of one of the UUT's is at least
3 dB lower than the measured result at any particular offset frequency.
If a more precise determination is required at any particular offset frequency,
a third UUT must also be measured against the other two UUT's. The data
from each of the three measurements can then be processed by the phase
noise software to give the noise of each of the individual UUT's.
Figure 8-4
Measurement Setup for Two Similar UUTs
Agilent Technologies E5500 Phase Noise Measurement System 8-5
Advertisement
Table of Contents
