Approximate System Phase Noise Floor Vs. R Port Signal Level - Agilent Technologies E5500A User Manual

Phase noise measurement system

Hide thumbs Also See for E5500A:

Table of Contents

Reference Graphs and Tables

Approximate System Phase Noise Floor vs. R Port Signal Level

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. The graph shown above illustrates the approximate

noise floor of the Agilent/HP 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.

18-2 Agilent Technologies E5500 Phase Noise Measurement System