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Setting Up a Phase Noise Measurement

This example program creates a Phase Noise measurement setup.

This VBScript program can be run as a macro in the VNA. To do this, copy the code into a text editor file such as Notepad and save on the VNA hard drive as PN_Setup.vbs. Learn how to setup and run the macro.

 

See Also

See Other SCPI Example Programs

'

'  Phase Noise - basic measurement

'

Dim app

Dim scpi

' Create / Get the VNA application.

Set app = CreateObject("AgilentPNA835x.Application")

Set scpi = app.ScpiStringParser

scpi.parse "SYST:PRES"

' Create a Phase Noise channel

scpi.parse "CALC:PAR:DEL:ALL"

scpi.parse "CALC:MEAS1:DEF 'PN:Phase Noise'"

scpi.parse "DISP:MEAS1:FEED 1"

' Set Carrier frequency to 3 GHz

scpi.parse "SENS:PN:SWEep:CARRier:FREQuency 3.0e9"

' Set Start/Stop Offset to 1 kHz and 10 MHz

scpi.parse "SENS:FREQuency:STARt 1e3"

scpi.parse "SENS:FREQuency:STOP 10e6"

' Set RBW Ratio to 5 %

scpi.parse "SENS:PN:BWIDth:RESolution:RATio 5"

' Set FFT Avg Factor to 2

scpi.parse "SENSe:PN:FAVerage:FACTor 2"

' Select Noise Mode to Normal

scpi.parse "SENS:PN:SWEep:NOISe:MODE NORMal"

' Select VNA Input to use for the measurement

scpi.parse "SENS:PN:RECeiver 'b2'"