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About Gain Compression

Description

Returns raw data at all frequency and power data points for any GCA sweep. Previously 2D sweep only.

• When using SMART sweep, ALL data is returned including ALL background iteration sweeps. Use TotalIterations to determine the number of iteration sweeps. The number of data points that are returned is always the number of frequency points times the number of iteration sweeps.

• When using 2D sweeps, ALL data is returned. The number of data points returned / freq may vary. Learn more.

Use the standard "get data" commands  to return just the displayed data results (not the background sweeps).

A compression parameter must be present. Learn more.

 VB Syntax

data = gca.GetRaw2DData location, format, param

Variable

(Type) - Description

data

Variant array in which to store returned measurement data.

gca

A GainCompression (object)

location

(enum NADataStore) - Where the data you want is residing. Choose from:

0 - naRawData

1 - naCorrectedData

format

(enum NADataFormat) - Format in which you would like the data. It does not have to be the displayed format. Choose from:

0 - naDataFormat_LinMag

1 - naDataFormat_LogMag

2 - naDataFormat_Phase

3 - naDataFormat_Polar*

4 - naDataFormat_Smith*

5 - naDataFormat_Delay -- Not valid for this command.

6 - naDataFormat_Real

7 - naDataFormat_Imaginary

8 - naDataFormat_SWR

9 - naDataFormat_PhaseUnwrapped

10 - naDataFormat_InverseSmith

Learn more about Data Format.

* Specify Smith or Polar formats to obtain complex data pairs, which require a two-dimensional array varData (numpts, 2) to accommodate both real and imaginary data.

All scalar formats return a single dimension varData(numpts).

naDataFormat_Phase and naDataFormat_PhaseUnwrapped returns degrees.

param

(String) Parameter of data to return. Not case-sensitive. The specified parameter need NOT be displayed. However, a compression parameter must be present. Learn more.

Choose from:

• "pin"  - (CompIn21) Input power at the compression point.

• "pout" - (CompOut21) Output power at the compression point.

• "gain" - (CompGain21) Device gain (S21) at the compression point.

• "inputmatch" - (CompS11) Input match at the compression point.

• "DeltaGain" - (DeltaGain21) Measured Gain (watts) / Ref Gain (watts). Learn more.

• "AI1" and "AI2" - ADC measurements at the specified compression level. Learn more.

Return Type

Variant Array

Default

Not Applicable

Examples

data = gca.GetRaw2DData naRawData, naDataFormat_Real, "pin"

C++ Syntax

HRESULT GetRaw2DData(tagNADataStore location, tagNADataFormat format, BSTR data_name, VARIANT* pData);

Interface

IGainCompression

9-May-2012

Edited Smart text

30-Aug-2011

Added 2D sweep variation

13-May-2011

Added returns background sweeps

31-Mar-2009

Added new params

12-May-2008

Edited for any GCA sweep

22-Oct-2007

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