User`s guide

Table Of Contents
42 Agilent E5505A User’s Guide
2
Introduction and Measurement
Making a measurement
1
Press the Continue button.
Because you selected New Measurement to begin this measurement, the
system starts by running the routines required to calibrate the current
measurement setup.
Figure 11 on page 42 shows a typical baseband phase noise plot for an
phase noise test set.
Sweep segments
When the system begins measuring noise, it places the noise graph on its
display. As you watch the graph, you see the system plot its measurement
results in frequency segments.
The system measures the noise level across its frequency offset range by
averaging the noise within smaller frequency segments. This technique enables
the system to optimize measurement speed while providing you with the
measurement resolution needed for most test applications.
Figure 11 Typical phase noise curve for test set confidence test