Perform an SMC Phase Reference Calibration

This example sets Phase Reference Cal properties, then performs a Phase Reference calibration.

It is NOT necessary to create an SMC measurement before performing a remote Phase Reference Cal. It is necessary when performed from the user interface.

The SCPI commands in this example are sent over a COM interface using the SCPIStringParser object. You do NOT need a GPIB connection to run this example.

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

Learn how to setup and run the macro.

See Phase Reference Cal SCPI commands

Learn about SMC with Phase Ref Cal

See Other SCPI Example Programs

Set app = CreateObject("agilentpna835x.application")

SET s = app.scpistringparser

s.parse "SYST:PRES"

s.parse "SENS:SWE:MODE HOLD"

'Set cal params

s.parse "SYST:CAL:PHAS:RESet"

s.parse "SYST:CAL:PHAS:FREQ:STAR 1e9"

s.parse "SYST:CAL:PHAS:FREQ:STOP 10E9"

' Read then set the phase ref ID

' Change this to your phase ref name

s.parse "SYST:CAL:PHAS:REF 'MYPILOT44'"

s.parse "SYST:CAL:PHAS:POW:ATT 10"

s.parse "SYST:CAL:PHAS:CONN 'APC 3.5 female'"

s.Parse "SYST:CAL:PHAS:CKIT '85052D'"

' turn on port 4 as well. Port 1 and Port 2 are always on

s.parse "SYST:CAL:PHAS:PORT4 on"

' Uncomment the following line to use

' an unknown mixer to measure below 55 Mhz.

' If the unknown mixer cal is ON, then the start frequency of the

' entire calibration is always 10 Mhz

' s.parse "SYST:CAL:PHAS:UNKN:INCLude ON"

' Read chan num then begin guided cal

chan = s.parse("SYST:CAL:PHAS:GUID:CHAN?")

header = "SENS" & CInt(chan) & ":CORR:COLL:GUID:"

S.parse header & "INIT"

steps = s.parse(header & "STEPS?")

wscript.echo steps

' Acquire stds

for i = 1 to steps

Msgbox s.parse(header & "DESC? " & i)

s.parse header & "ACQ STAN" & i

s.parse header & "SAVE:CSET 'scpi_phase_reference'"

msgbox "done"