Agilent Technologies E5500 Phase Noise Measurement System
7-97
Absolute Measurement Examples
Microwave Source
Microwave Source
This measurement example will help you measure the absolute phase noise
of a microwave source (2.5 to 18 GHz) with frequency drift of
≤
10E – 9 X
Carrier Frequency over a period of thirty minutes.
CAUTION
To prevent damage to the Agilent/HP 70420A test set’s hardware
components, the input signal must not be applied to the signal input
connector until the input attenuator has been correctly set for the desired
configuration, as show in
. Apply the input signal
when the Connection Diagram appears.
Required Equipment
The following equipment is required for this example in addition the phase
noise test system and your unit-under-test (UUT).
NOTE
To ensure accurate measurements, you should allow the UUT and
measurement equipment to warm up at least one hour before making the
noise measurement.
Table 7-17
Required Equipment for the Microwave
Source Measurement Example
Equipment
Quantity
Comments
Agilent/HP 8644B
1
Must have DCFM Input Port.
Refer to
for more information
about reference source
requirements
Agilent/HP 70422A
1
Must be entered in the Asset
Manager and Server Hardware
Connections dialog box.
Coax Cables
And adequate adapters to connect
the UUT and reference source to
the test set.
