Agilent Technologies N8201A User Manual

Agilent N8201A Option 226Performance DownconverterSynthetic Instrument Module3 Hz to 26.5 GHz Technical Overview and Self-Guided Tour for the Phase No

10Integrated noiseDifferent applications require different measures for evaluating phase noise behaviors. In the digital world, root-mean-square (rms)

11Figure 8.RMS phase deviation in degreesFigure 9.Residual FM

12Phase noise measurement personalityMeasurement modes Spectrum monitor Log plot Spot frequencyOffset frequency range Minimum offset frequ

13ReferencesWeb resourcesFor additional information on synthetic instruments, visit:www.agilent.com/find/syntheticFor additional information on instru

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Phase noiselog plotpage 3Spot frequencyphase noisepage 6DANLmeasurementspage 8Phase noisecancellationpage 9Integrated noisepage 10Phase Noise Measurem

Demonstration preparationFigure 1.Phase noiselog plot Instructions KeystrokesOn the ESG:Set carrier frequency to 1 GHz. [Preset] [Frequency] {1 GHz}

4Note: Averaging and video filtering are part of the measurement. Therefore, every time you change the number of averages and/or level of video filter

5Figure 4.Smoothed phase noise plotFigure 3.Phase noise plot with video filtering

6If you are interested in phase noise versus time at a single offset frequency, use the spot frequency phase noise measurement.• Monitor phase noise

7Figure 6.Phase noise withcarrier driftingFigure 5.Spot frequencyphase noise

8Displayed average noise level(DANL) measurementsThe DANL floor of a spectrum analyzer sets limitations for measuring the smallest in put signal, usua

9Instructions KeystrokesSet DANL measurement method as “Removal”. [Input/Output], toggle {DANL Method} to underline “Removal”Activate the DANL measur