Setup Phase Control

The following VB Script example exercises the COM commands used to setup and display Phase Sweep measurements.

See Also

About Phase Control

PhaseControl Object

See Other COM Example Programs

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

'Assume port 1 is connected to port 3

Set pna = CreateObject("AgilentPNA835x.Application")


Set chan = pna.ActiveChannel

chanNum = chan.ChannelNumber

'Create 3 traces: S33, R3/C(amp),R3/C(phase)

 pna.CreateMeasurement 1,"S33",3

 Set meas1 = pna.ActiveMeasurement

 meas1.Format = 4     'Smithchart format

 pna.CreateMeasurement 1,"R3/C",3 'Log format

 Set meas2 = pna.ActiveMeasurement

 meas2.Format = 1     'Phase format

 pna.CreateMeasurement 1,"R3/C",3

 Set meas = pna.ActiveMeasurement

 meas.Format = 2     'Phase format

 'turn on 3 and 1

 chan.SourcePortMode(1) = 1

 chan.SourcePortMode(3) = 1

 chan.SweepType = 5 'Phase sweep

 Set phase = chan.PhaseControl

'set port3's control parameter to R3/C

phase.PhaseParameter(3) = "R3/C"  

'notice the reference port should not included in the parameter

phase.PhaseReferencePort(3) = 1

'Set port3 to PAR mode

phase.PhaseControlMode(3) = 1 'PhaseControlParamter mode

phase.FixedRatioedPower(3) = 3

phase.StartPhase(3) = 0

phase.StopPhase(3) = 180

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