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Discriminator Measurement using FM Rate and Deviation Calibration
To prevent damage to the test set's components, do not apply the input signal to the
C A UTI ON
signal input connector until the input attenuator (N5500A Option 001) has been
correctly set for the desired configuration, as show in
the input signal when the connection diagram appears.
In order to use the FM rate and deviation calibration method you must have a signal source
NO T E
that is calibrated for FM modulation rate and FM deviation parameters. All Agilent
Technologies signal generators meet this requirement.
Required equipment
Table 43
noise test system and your DUT.
To ensure accurate measurements allow the DUT and measurement equipment to warm up
NO T E
at least 30 minutes before making the noise measurement.
Table 43 Required equipment for the FM discriminator measurement example
Equipment
Signal Generator
Power Splitter
Delay Line
Phase Shifter
Agilent E5505A User's Guide
shows equipment is required for this example in addition the phase
Quantity
1
1
1
FM Discriminator Measurement Examples
Table 44
Comments
+19 dBm output level at tested carrier frequency.
Calibrated FM at a 20 kHz rate with 10 kHz Peak
Deviation.
NARDA 30183
Delay (or length) adequate to decorrelate source
noise.
±
°
180
phase shifter at lowest carrier frequency
tested.
10
on page 276. Apply
267
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