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7
Absolute Measurement Examples
Microwave Source
Microwave Source
Required Equipment
7-68
E5500 Phase Noise Measurement System Version A.02.00
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 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
shown in
Table
7-19. Apply the input signal when the connection diagram
appears.
Table 7-17
shows equipment is required for this example in addition
to 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
Agilent 8644B
Agilent 70422A
Coax Cables
Quantity Comments
1
Must have DCFM Input Port.
Refer to
Chapter
Measurement Fundamentals" for
more information about reference
source requirements
1
Must be entered in the Asset
Manager and Server Hardware
Connections dialog box.
And adequate adapters to connect
the UUT and reference source to the
test set.
Document Part No. E5500-90024 Ed. 1.0
6, "Absolute
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