User`s guide

164 Agilent E5505A User’s Guide
6 Absolute Measurement Examples
Selecting Loop Suppression Verification
1 Using Figure 111 as a guide, navigate to the Cal tab.
2 In the Cal dialog box, check Verify calculated phase locked loop
suppression and Always Show Suppression Graph. Select If limit is
exceeded: Show Loop Suppression Graph.
3 When you have completed these operations, click the Close button.
Setup considerations for the RF synthesizer using DCFM measurement
Measurement noise floor
The signal amplitude at the test set’s R input (Signal Input) port sets the
measurement noise floor level. Use Figure 112 and Figure 113 on page 165 to
determine the amplitude required to provide a noise floor level that is below
the expected noise floor of your DUT.
Figure 111 Selecting loop suppression verification
e5505a_user_select_loop
24 Jun 04 rev 3