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5
Expanding Your Measurement Experience
Testing the Agilent 8644B Internal/External 10 MHz
Beginning the
Measurement
5-34
E5500 Phase Noise Measurement System Version A.02.00
If the output amplitude of your UUT is not sufficient to provide an
adequate measurement noise floor, it will be necessary to insert a
low-noise amplifier between the UUT and the test set. Refer to
"Inserting an Device" in
for details on determining the effect the amplifiers noise will have on
the measured noise floor.
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
show in
Table 5-7
on page 5-35. Apply the input signals when the connection
diagram appears, as shown below in step 3.
1
From the Measurement menu, choose New Measurement. See
Figure
5-29.
Figure 5-29 Selecting a New Measurement
2
When the Perform a New Calibration and Measurement?
prompt appears, click OK.
3
When the Connect Diagram dialog box appears, click on the
hardware down arrow and select your hardware configuration
from the pull-down list.
Confirm your connections as shown in the Connect Diagram
(Figure
5-30). At this time connect your UUT and reference
sources to the test set. The input attenuator (Option 001 only) has
now been correctly configured based on your measurement
definition.
Document Part No. E5500-90024 Ed. 1.0
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