7-2
Agilent Technologies E5500 Phase Noise Measurement System
Absolute Measurement Examples
Stable RF Oscillator
Stable RF Oscillator
This measurement example will help you measure the phase noise of a stable
RF oscillator with frequency drift of <20 ppm 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 7-1
Required Equipment for the Stable RF
Oscillator Measurement Example
Equipment
Quantity
Comments
VCO Reference Source
1
Refer to
for more information
about reference source
requirements
Coax Cables
And adequate adapters to connect
the UUT and reference source to
the test set.
