Table of Contents
Advertisement
6
Absolute Measurement Examples
RF Synthesizer Using DCFM
This measurement example will help you measure the absolute phase noise of
an RF synthesizer using DCFM.
To prevent damage to the test set's components, do not apply the input signal to the
C A UTI ON
signal input connector until the input attenuator has been correctly set for the
desired configuration, as shown in
when the connection diagram appears.
Required equipment
This measurement requires an Agilent 8257x with a DCFM Input port, in
addition to the phase noise test system and your DUT. (For more information,
see
cables and adapters necessary to connect the DUT and reference source to the
test set.
To ensure accurate measurements allow the DUT and measurement equipment to warm up
NO T E
at least 30 minutes before making the noise measurement.
Defining the measurement
1
2
3
e5505a_users_select_param_def_file_rfsynth
24 Jun 04 rev 3
Figure 109 Select the parameters definition file
160
"Selecting a reference source"
From the File menu, choose Open.
If necessary, choose the drive or directory where the file you want is stored.
In the File Name box, choose "RFSynth_DCFM.pnm". See
Table 21
on page 167. Apply the input signal
on page 132.) You also need the coaxial
Figure
109.
Agilent E5505A User's Guide
Advertisement
Table of Contents
