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FM Discriminator Measurement using Double-Sided Spur Calibration
Required Equipment
Document Part No. E5500-90024Ed. 1.0
FM Discriminator Measurement using Double-Sided Spur Calibration
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 (Agilent 70420A Option 001) has been correctly set for
the desired configuration, as show in
connection diagram appears.
Table 11-1
shows equipment 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 11-1 Required Equipment for the FM Discriminator Measurement
Example
Equipment
Signal Generator
Power Splitter
Delay Line
Phase Shifter
E5500 Phase Noise Measurement System Version A.02.00
FM Discriminator Measurement Examples
Table
11-2. Apply the input signal when the
Quantity
Comments
1
+19 dBm output level at tested
carrier frequency.
Calibrated FM at a 20 kHz rate with
10 kHz Peak Deviation.
1
NARDA 30183
Delay (or length) adequate to
decorrelate source noise.
±
°
1
180
phase shifter at lowest
carrier frequency tested.
11
11-3
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