Perform a Cal All Channels Calibration

'Access the CalAllChannels object

Dim app

Set app = CreateObject("AgilentPNA835x.Application")

Dim mgr

Set mgr = app.GetCalManager

'Preset PNA

app.Preset

'********** Setup Channel 1, Window 1 **********

' Get a handle to the preset channel 1

set meas1=app.ActiveMeasurement

set chan1=app.ActiveChannel

set win1=app.ActiveNAWindow

'Modify stimulus settings

'Set IF Bandwidth to 1kHz

chan1.IFBandwidth = 1e3

'Set Center and Span Freq's to 1 GHz

chan1.CenterFrequency = 1e9

chan1.FrequencySpan = 1e9

'Set number of points to 11

chan1.NumberOfPoints = 11

'

'********** Setup SMC in Channel 2 in new window**********

app.CreateCustomMeasurementEx 2, "Scalar Mixer/Converter","SC21",2

Set smcChan = app.ActiveChannel

smcChan.NumberOfPoints = 11

smcChan.IFBandwidth = 1e3

' the rest are Mixer settings

dim mixer

set mixer = app.ActiveMeasurement

mixer.InputRangeMode = 0  'swept Input

mixer.InputStartFrequency = 3.6e9

mixer.InputStopFrequency = 3.9e9

mixer.LORangeMode(1) = 1  'fixed LO

mixer.LoFixedFrequency(1) = 1e9

mixer.LOPower(1) = 10

mixer.LOName(1) = "Port 3"

mixer.OutputSideband = 1 'Low side

mixer.Calculate 2  'Calc Output

mixer.Apply

'

'********** Setup CalAll Channel

Dim CalAll

Set CalAll = mgr.CalibrateAllChannels

'Reset Cal All settings

CalAll.Reset

'Select the channels to cal

'VMC channels are not supported by Cal All.

CalAll.Channels = Array(1,2)

'Set IFBW

CalAll.IFBW = 1e3

'Set power level for port 1

CalAll.PowerLevel(1) = 0

'Set CalSet prefix. The channel number is appended to

'the User Cal set for each channel.

'If you don’t set this, only Cal Registers will be generated.

calAll.UserCalsetPrefix = "MyCalAll"

' Read unique Cal settings for Cal All channels

props = calAll.PropertyNames

msg = "calAll.PropertyNames:" & vbCrLf

For i = 0 to UBound(props)

  msg = msg & "  " & CStr(i) & ". " & props(i) & vbCrLf

Next

resp = MsgBox(msg)

' We want "Enable Phase Correction"

' Now find valid settings

propName = "Enable Phase Correction"

uniqVal = calAll.PropertyValues (propName)

'returns 'false,true' make it true.

For i = 1 to UBound(uniqVal)

  MsgBox "calAll.PropertyValues (" & propName & ") = " & uniqVal(i)

Next

calAll.PropertyValue(propName) = "true"

'

'********* 'Perform Guided Cal *******

' Get a handle to the GuidedCal object

Dim guidedcal

set guidedcal = calAll.GuidedCalibration

' Specify the DUT connectors

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

guidedcal.ConnectorType(2) = "APC 3.5 male"

guidedcal.ConnectorType(3) = "Not used"

guidedcal.ConnectorType(4) = "Not used"

MsgBox "Connectors defined for Ports 1 and 2"

' Select the Cal Kit for each port being calibrated.

guidedCal.CalKitType(1) = "85052D"

guidedCal.CalKitType(2) = "85052D"

MsgBox "Cal kits defined for Ports 1 and 2"

' Initiate the calibration and query the number of steps

Numsteps = guidedcal.GenerateSteps

For i = 1 to Numsteps

  step = "Step " + CStr(i) + " of " + CStr(Numsteps)

  strPrompt = guidedCal.GetStepDescription(i)

  value = MsgBox(strPrompt, vbOKOnly, step)

  guidedCal.AcquireStep i

Next

' Conclude the calibration

guidedCal.GenerateErrorTerms

csets = calAll.GeneratedCalSets

For i = 0 to UBound(uniqVal)

 MsgBox (csets(i))

Next

9-Jan-2012

New topic