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Approximate System Phase Noise Floor vs. R Port Signal Level
Document Part No. E5500-90024Ed. 1.0
Approximate System Phase Noise Floor vs. R Port Signal Level
The sensitivity of the phase noise measurement system can be
improved by increasing the signal power at the R input port (Signal
Input) of the phase detector in the test set.
approximate noise floor of the Agilent 70420A test set for a range of
R input port signal levels from -15 dBm to +15 dBm. These estimates
of sensitivity assume the signal level at the L port is appropriate for
either the microwave or the RF mixer that is used (+7 dBm or +15
dBm, respectively). The approximate phase Detector calibration
Constant that results from the input signal level at the R port is
shown on the right side of the graph.
Figure 17-1
E5500 Phase Noise Measurement System Version A.02.00
Reference Graphs and Tables
Figure 17-1
illustrates the
17
17-3
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