Create and Cal an SMC Measurement

This example creates and calibrates an SMC measurement. A power sensor must first be connected to the PNA.

By removing the comments ( ' ) at the start of the BLUE code, it can also do the following:

Load a Mixer setup file from the PNA at: C:/Program Files/Keysight/Network Analyzer/Documents/Mixer/MyMixer.mxr.
Cal using an ECal module.
Perform manual ECAL orientation
Load a Phase Reference calibration.

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 SMC.vbs. Learn how to setup and run the macro.

See Also

Create an SMC Fixed Output Meas

Use Existing Power Cal for SMC

Dim App

Set App = CreateObject("AgilentPNA835x.Application")

App.Preset

Dim Meas

Set Meas = App.ActiveMeasurement

Meas.Delete

App.CreateCustomMeasurementEx 1, "Scalar Mixer/Converter","SC21"

'Other valid strings that can be specified to create a measurement with a parameter

'other than'"SC21" are: "S11", "S22", "IPwr", and "OPwr"

dim chan

set chan = app.activechannel

'Attenuator setting must match optional Phase Ref Cal setting

chan.attenuator(1) = 10

chan.NumberOfPoints = 11

chan.IFBandwidth = 1000

'You can perform mixer setup here or

'recall a previous mixer setup from the PNA Hard drive.

'This is how to perform mixer setup using IConverter.

' Setup Stimulus

dim cv

set cv = chan.Converter

cv.InputStartFrequency = 3.6e9

cv.InputStopFrequency = 4.9e9

cv.LOFixedFrequency(1) = 1e9

cv.LOPower(1) = 10

cv.OutputSideband = 0 'Lowside

cv.Calculate 2 'Calc output

'cv.EnablePhase = True

cv.LOName(1)="Port 3"

cv.Apply()

' Alternatively, recall a mixer setup from the PNA Hard drive

'Meas.LoadFile "C:/Program Files/Keysight/Network Analyzer/Documents/Mixer/MyMixer.mxr"

' Begin Calibration

Dim CalMgr

Set CalMgr = App.GetCalManager

Dim SMC

Set SMC = CalMgr.CreateCustomCal("SMC")

SMC.Initialize 1, 1

SMC.ConnectorType(1) = "APC 3.5 male"

SMC.ConnectorType(2) = "APC 3.5 female"

' Use Mechanical cal kits

SMC.CalKitType(1) = "85033D/E"

SMC.CalKitType(2) = "85033D/E"

' To use an ECal module instead, comment out the above two lines

' and uncomment the appropriate lines below:

' Your ECal module must already be connected

' via USB to the PNA.

' SMC.CalKitType(1) = "N4691-60004 ECal"

' SMC.CalKitType(2) = "N4691-60004 ECal"

' Non-factory characterizations are specified as follows:

' SMC.CalKitType(1) = "N4691-60004 User 1 ECal"

' When two or more ECal modules with the same model number are connected

' also specify the serial number as follows:

' SMC.CalKitType(1) = "N4691-60004 ECal 01234"

' When Disk Memory ECal user characterizations are used,

' specify both the User char and the serial number as follows:

' SMC.CalKitType(1) = "N4691-60004 MyDskChar ECal 01234"

' Turn on auto orientation for the ECal (default behavior).

' SMC.AutoOrient = 1'

MsgBox("Cal kits defined for Ports 1 and 2")

' Import power cal data from an existing SMC calset.

' This calset MUST exist on the PNA.

SMC.ImportDataSet "Phase Reference-full-span","POWER_AND_PHASE"

'Omit the isolation part of the 2-port cal (default behavior).

SMC.OmitIsolation = 1

Dim steps

steps = SMC.GenerateSteps

For i = 1 To steps

MsgBox SMC.GetStepDescription(i)

SMC.AcquireStep i

Next

Dim calset

calset = SMC.GenerateErrorTerms

Msgbox("SMC Cal Complete!")

Last Modified:

8-Mar-2012	Edit for LOName (ZW)
24-Feb-2012	Added Phase Ref option
5-Apr-2011	Edited for ECal options
8-Mar-2011	Updated for A.09.33