Keysight Technologies N5511A, User Manual

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N5511A Phase Noise Test System User’s Guide 225
FM Discriminator Measurement Examples
FM Discriminator Single Channel Measurement using Double-Sided Spur Calibration
FM Discriminator Single Channel Measurement using Double-Sided
Spur Calibration
Required Equipment
Table 10-1 shows equipment required for this example in addition to the phase
noise test system and your DUT.
To prevent damage to the test set’s components, do not apply a signal beyond the systems
specifications. Refer to the data sheet for power specifications.
To ensure accurate measurements allow the DUT and measurement equipment to warm up at
least 30 minutes before making the noise measurement.
Table 10-1 Required Equipment for the FM Discriminator
Measurement Example
Equipment Quantity Comments
Signal Generator 1 +19 dBm output level at tested carrier frequency.
Calibrated FM at a 20 kHz rate with 10 kHz Peak
Deviation.
Power Splitter 1 NARDA 30183
Delay Line Delay (or length) adequate to decorrelate source noise.
Phase Shifter 1 ±180° phase shifter at lowest carrier frequency tested.