NI-RFmx WCDMA 2.5 Readme

June 2018

This file contains important information about NI-RFmx WCDMA and is organized into the following sections:

New Features

Installation Instructions

Supported Hardware

System Requirements

Installed Software, Documentation, and Examples



Accessing VIs and Functions

Finding Examples

Product Security and Critical Updates

Uninstalling/Modifying NI-RFmx WCDMA

Known Issues

Bug Fixes

Increasing Available Memory For Your Application

Automating the Installation of NI Products

Using NI Software with Microsoft Windows 10

Using NI Software with Microsoft Windows 8.1

Legal Information

New Features

NI-RFmx WCDMA 2.5 includes the following new features:

  • Addition of APIs to perform self-calibration and partial self-calibration
  • Addition of NI-RFmx Debug Configuration Utility to configure debug settings
  • Support for LabVIEW 2018 (32-bit and 64-bit)
  • Support for querying configuration attributes without calling RFmxWCDMA Commit API

NI-RFmx WCDMA 2.3 includes the following new features:

  • Addition of Code Domain Analysis (CDA) measurement
  • Addition of Slot Power measurement
  • Addition of functions to query signal configuration names and result names
  • Addition of a sequential FFT measurement method in the ACP measurement
  • Support for multi-carrier in ModAcc measurement
  • Support for LabVIEW 2017 (32-bit and 64-bit)
  • Support for frequency-dependent external attenuation tables
  • Support for frequency-dependent amplitude correction on measured power spectrum data
  • Support for monitoring API calls in the NI IO Trace

Installation Instructions

Caution  Before you install NI-RFmx WCDMA 2.5, ensure that you have uninstalled all related NI-RFmx 1.0 products.

Caution  If you are using only RFmx LabVIEW Runtime products, NI recommends uninstalling all the RFmx Runtime products before installing a newer version of RFmx Runtime products.

NI-RFmx drivers require that all the installed drivers have the same version for proper functionality because the NI-RFmx drivers use shared components that need to use the same version across all drivers. If driver incompatibilities exist, they are reported through a dialog box after installation. You can also use the Version Compatibility Checker utility to manually check for version incompatibilities. Refer to the Installed Software, Documentation, and Examples section for more information about the installed location of the Version Compatibility Checker utility.

Supported Hardware

Vector Signal Analyzers

  • NI PXIe-5663
  • NI PXIe-5663E
  • NI PXIe-5665
  • NI PXIe-5668R
  • NI PXIe-5698 with NI PXIe-5668R

Device-specific information about these modules is included in the NI RF Vector Signal Analyzers Help.

Vector Signal Transceivers

  • NI PXIe-5644R
  • NI PXIe-5645R
  • NI PXIe-5646R
  • NI PXIe-5840

Device-specific information about these modules is included in the NI RF Vector Signal Transceivers Help.

System Requirements

Supported Operating Systems

NI-RFmx WCDMA 2.5 supports the following operating systems:

  • Windows 10/8.11/7 SP12 (32-bit and 64-bit)
  • Windows Server 2012 R21 (64-bit)
  • Windows Server 2008 R2 SP12 (64-bit)

Note  In 2016, NI-RFmx WCDMA dropped support for Microsoft Windows 7 RTM (with no service pack), Windows Vista, Windows XP, and Windows Server 2003. NI-RFmx WCDMA 2.5 will not install or run on an unsupported OS. You cannot deploy or distribute applications that use NI-RFmx WCDMA 2.5 to an unsupported OS. Additionally, after installing NI-RFmx WCDMA 2.5, you cannot use any installers built on this computer with any version of LabVIEW, LabWindows™/CVI™, NI TestStand™, or Measurement Studio on an unsupported OS.

For more information about the changes to our OS support for 2017, refer to KB 79UC78LS, Why Does my LabVIEW, LabWindows/CVI, Measurement Studio, or TestStand Built Installer Fail on Windows XP/Vista and Server 2003?.

1 NI software installs VC2015 Runtime and .NET 4.6.2. Windows 8.1 and Windows Server 2012 R2 require Microsoft updates to support these items. Refer to Microsoft KB2919442 and KB2919355 for more information about how to install these updates.

2 NI software is signed with a SHA-256 certificate. Windows 7 SP1, Windows Embedded Standard 7 SP1, and Windows Server 2008 R2 SP1 require Microsoft updates to support SHA-256. Refer to Microsoft KB3033929 for more information about how to install this security update.

Note  NI-RFmx WCDMA 2.5 does not support Windows Server non-R2 editions.

NI recommends that you have the most recent service pack for your operating system installed.

Minimum Requirements

  • Processor—1 GHz or faster 32-bit (x86) or 64-bit (x64) processor
  • RAM—4 GB*
  • A screen resolution of 1,024 x 768
  • Windows 10/8.1/7, with all available critical updates and service packs
  • Microsoft .NET Framework 4.6.2

*Depending on the amount of data acquired and/or processed, a larger amount of memory may be required.

Application Development Environments (ADEs)

Note  You should install ADEs, such as NI LabVIEW or Microsoft Visual Studio®, before installing NI-RFmx WCDMA. To add support for ADEs installed after installing NI-RFmx WCDMA, modify your NI-RFmx WCDMA installation or launch the NI-RFmx WCDMA installer again.

  • NI LabVIEW 2015 SP1 f5 patch, 2016, 2017, or 2018
  • Microsoft Visual Studio 2010 SP1 or later

Note  NI-RFmx WCDMA will not operate correctly without the service packs and patches previously mentioned.

Other Required Software

  • NI-RFSA 14.1 or later

Installed Software, Documentation, and Examples

  • <MSTUDIOVS2010DIR> is an alias for the following National Instruments file folder location:
    • (32-bit) Program Files\National Instruments\MeasurementStudioVS2010
    • (64-bit) Program Files (x86)\National Instruments\MeasurementStudioVS2010
  • <NIDir> is an alias for the following National Instruments file folder location:
    • (32-bit OS) Program Files\National Instruments
    • (64-bit OS) Program Files (x86)\National Instruments for 32-bit programs and Program Files\National Instruments for 64-bit programs
  • <NIDocDir> is an alias for the following National Instruments file folder location: Users\Public\Public Documents\National Instruments
  • <SYSDIR> is an alias for the following file folder location:
    • (32-bit) windows\system32
    • (64-bit) windows\SysWow64 for 32-bit programs and windows\system32 for 64-bit programs

File Locations

Item Installed Location
Version Compatibility Checker <NIDir>\RFmx\niRFmxCompatibility_Checker.exe
Debug Configuration Utility <NIDir>\RFmx\niRFmxDebugConfigurationUtility.exe
Header files


Import Library files (32-bit) <NIDir>\Shared\ExternalCompilerSupport\C\include
Import Library files (64-bit)
  • 32-bit: <NIDir>\Shared\ExternalCompilerSupport\C\lib32\msvc
  • 64-bit: <NIDir>\Shared\ExternalCompilerSupport\C\lib64\msvc
Examples <NIDocDir>\NI-RFmx\WCDMA\Examples
Examples <NIDir>\LabVIEW <version>\examples\RFmx\WCDMA
.NET Class Libraries
Assemblies <MSTUDIOVS2010DIR>\DotNET\Assemblies\Current\NationalInstruments.RFmx.WcdmaMX.Fx40.dll


Select Start»All Programs»National Instruments»NI-RFmx WCDMA»NI-RFmx WCDMA Measurement Interactive Panel to launch the NI-RFmx WCDMA Measurement Interactive Panel.


Documentation for NI-RFmx WCDMA is located at Start»All Programs»National Instruments»NI-RFmx WCDMA»NI-RFmx WCDMA Documentation. The documentation set is composed of the following documents.

Document Format Description
NI-RFmx WCDMA Help HTML/Windows Help Information about NI-RFmx WCDMA. This help file is an HTML version of a traditional user manual that includes the following information:
  • An introduction to NI-RFmx WCDMA
  • How to get started with application development
  • A complete reference for all NI-RFmx WCDMA programming functions and VIs
NI-RFmx WCDMA 2.5 Readme HTML (this document) Information about supported hardware, supported operating systems, new features, fixed issues, and legal notices.

For the most recent revisions of documentation and for newly released documentation, visit

Accessing VIs and Functions

NI-RFmx WCDMA palette VIs are available from the Functions»Measurement I/O»NI-RFmx»WCDMA palette.

Finding Examples

You can access all the installed NI-RFmx WCDMA examples at Start»All Programs»National Instruments»NI-RFmx WCDMA»NI-RFmx WCDMA Examples.

Product Security and Critical Updates

Visit to view and subscribe to receive security notifications about National Instruments products. Visit for information about critical updates from National Instruments.

Behavior Changes

The following items are the behavior changes in NI-RFmx WCDMA 2.3.1 from NI-RFmx WCDMA 2.3.

  • Changed the default value of the IQ Power Edge Source property to ""(empty string).
  • The alias 'default@WCDMA' for the default signal name is accepted as a valid signal name in a selector string parameter.
  • LabVIEW built binaries using RFmx versions older than 2.2 are no longer supported.

Known Issues

You can access the software and documentation known issues list online. Refer to the NI-RFmx WCDMA 2.5 Known Issues at for an up-to-date list of known issues in NI-RFmx WCDMA 2.5.

Bug Fixes

The following items are the IDs and titles of a subset of issues fixed in NI-RFmx WCDMA. This is not an exhaustive list of issues fixed in the current version of the NI-RFmx WCDMA. If you have a CAR ID, you can search this list to validate that the issue has been fixed.

The following item is the change in NI-RFmx WCDMA 2.4 from NI-RFmx WCDMA 2.3.1

ID Fixed Issue
640495 Fixed an issue where switching between measurements from an NI-RFmx cellular personality to Demod resulted in higher EVM on 5668R.

The following items are changes in NI-RFmx WCDMA 2.3.1 from NI-RFmx WCDMA 2.3.

ID Fixed Issue
650095 Fixed an issue where the RFmxInstr Close API did not abort a measurement in progress, but instead waited for the measurement to finish before closing.
650083 Fixed an issue with RFmxInstr Save All Configurations API to save the attribute configurations depending on the corresponding number of channels configured by user.
648703 Fixed an issue where passing NULL as selector string in a few C functions, caused the function to crash.

The following items are changes in NI-RFmx WCDMA 2.3 from NI-RFmx WCDMA 2.2.

ID Fixed Issue
631432 Fixed an issue where incorrect values were returned on reading RF Attenuation and Mechanical Attenuation properties.
641152 Fixed an issue with configuring User Defined Channel properties in ModAcc and SlotPhase measurements with a named signal.

Increasing Available Memory For Your Application

When developing memory intensive applications, you may encounter memory limits as 32-bit Windows applications only utilize 2 GB of memory by default. To expand the amount of memory an application can utilize, you can configure the executable to be large address aware to gain access to up to 3 GB of memory on a 32-bit Windows operating system and up to 4 GB of memory on a 64-bit Windows operating system.

For more information, refer to Memory Limits for Windows and Windows Server Releases on the Microsoft website.

Note  LabVIEW 8.5 and later are large address aware. For more information, refer to How Much Memory can LabVIEW 32-bit or 64-bit Use?.

In TestStand 2013 and later, the Large Address Aware flag is enabled by default for the TestStand Sequence Editor and TestStand User Interfaces. For more information, refer to Using the Large Address Aware Flag With TestStand Applications.

Automating the Installation of NI Products

You can automate the installation of most NI products using command-line arguments to suppress some or all of the installer user interface and dialog boxes. However, starting with the August 2012 releases (products using NI Installers version 3.1 or later), you may need to perform additional steps before or during a silent installation of NI software.

If the NI product you are installing uses Microsoft .NET 4.0, the .NET installer may run before any NI software installs and may require a reboot before the installation of NI software begins. To avoid a .NET reboot, install .NET 4.0 separately before you install NI software.

For more information about automating the installation of NI products, refer to the following KnowledgeBase articles:

Using NI Software with Microsoft Windows 10

Microsoft Windows 10 is the latest version of the Windows operating system and features significant changes compared to previous versions. Windows 10 introduces several new capabilities and also combines features from both Windows 7 and Windows 8. For more information about NI support for Windows 10, visit

Using NI Software with Microsoft Windows 8.1

When you install National Instruments software on Microsoft Windows 8.1, you will notice a few additional tiles in the Apps view, including shortcuts to NI application software products such as NI LabVIEW, Measurement & Automation Explorer (NI MAX), and NI Launcher. For more information about NI support for Windows 8.1, visit

Legal Information


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End-User License Agreements and Third-Party Legal Notices

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  • Notices are located in the <National Instruments>\_Legal Information and <National Instruments> directories.
  • EULAs are located in the <National Instruments>\Shared\MDF\Legal\license directory.
  • Review <National Instruments>\_Legal Information.txt for information on including legal information in installers built with NI products.

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