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Self-Calibration

Self-calibration adjusts the NI 5646R-G for variations in the module environment using an
onboard high-precision calibration tone. Perform a complete self-calibration after first
installing your module and letting it warm up for 30 minutes.

Note

 

Warm up begins when the PXI Express chassis has been powered on and the

operating system has completely loaded.

The NI 5646R-G modules are externally calibrated at the factory; however, you should
perform a self-calibration in any of the following situations:

After first installing the NI 5646R-G into your chassis

After any module in the chassis is installed, uninstalled, or moved

When the system is in an environment where the ambient temperature varies or the
module temperature has drifted more than ±5 °C from the temperature at the last self-
calibration

To periodically adjust for small performance drifts that occur with product aging

NI recommends you perform the self-calibration from the installed self-calibration executable
located at 

Start

»

All Programs

»

National Instruments

»

Vector Signal Transceivers

»

VST

Self Calibrate

. When using LabVIEW, you can also use the niVST Self-Calibrate VI, located

on the 

Functions

»

Instrument I/O

»

Instrument Drivers

»

NI VST Calibration

 palette.

Related Information

Refer to the NI RF Vector Signal Transceivers Help for more information about self-
calibration and self-calibrating in text-based languages.

Programming the NI 5646R-G

You can generate signals interactively using the NI-RFSG Soft Front Panel (SFP), or you can
use the NI-RFSG instrument driver to program your device in the supported ADE of your
choice.

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ni.com

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NI PXIe-5646R-G Getting Started Guide

Summary of Contents for NI PXIe-5646R-G

Page 1: ...mpaired if it is used in a manner not described in this document Contents Electromagnetic Compatibility Guidelines 2 Verifying the System Requirements 2 Unpacking the Kit 2 Verifying the Kit Contents...

Page 2: ...Caution To ensure the specified EMC performance operate this product only with shielded cables and accessories Caution To ensure the specified EMC performance operate this product only with cables le...

Page 3: ...ument Other Equipment There are several required items not included in your device kit that you need to install or operate the NI 5646R G Required Items A PXI Express chassis and chassis documentation...

Page 4: ...ator to install NI software on your computer 1 Install an ADE such as LabVIEW or LabWindows CVI 2 Insert the driver software media into your computer The installer should open automatically If the ins...

Page 5: ...chassis to rise above the optimal operating temperature for the device potentially causing thermal shutdown shorter lifespans or improper performance 5 Position the chassis so that inlet and outlet ve...

Page 6: ...ting screws increases mechanical stability and also electrically connects the front panel to the chassis which can improve the signal quality and electromagnetic performance 13 Cover all empty slots u...

Page 7: ...r switch routed to the NI 5646R G ensure no signal transients are sourced to the NI 5646R G Hardware Front Panel Connectors and Indicators Figure 4 NI 5646R G Front Panel DIGITAL I O LVTTL REF OUT 1 6...

Page 8: ...erence Clock REF OUT Output terminal that can export a 10 MHz Reference Clock or the 250 MHz Sample Clock PFI 0 Programmable function digital I O DIO connector for use with triggers or events DIGITAL...

Page 9: ...more information about front panel connectors and LEDs Configuring the NI 5646R G in MAX Use Measurement Automation Explorer MAX to configure your National Instruments hardware MAX informs other prog...

Page 10: ...temperature has drifted more than 5 C from the temperature at the last self calibration To periodically adjust for small performance drifts that occur with product aging NI recommends you perform the...

Page 11: ...cation in Microsoft Visual C C Related Information For detailed instructions about how to generate signals in a specific ADE refer to the Getting Started section of the NI RF Signal Generators Help Re...

Page 12: ...ED on the NI 5646R G hardware module illuminates 5 Click RF On Off to stop signal generation Troubleshooting If an issue persists after you complete a troubleshooting procedure contact NI technical su...

Page 13: ...sing a PXI controller verify that a National Instruments entry appears in the system device list Reinstall NI RFSG and the device if error conditions appear in the list If you are using an MXI control...

Page 14: ...software EXPLORE LEARN CREATE DISCOVER RF Solutions ni com rf Services ni com services NI Community ni com community Located at ni com gettingstarted Located using the NI Example Finder Located at ni...

Page 15: ...your product supports calibration you can obtain the calibration certificate for your product at ni com calibration National Instruments corporate headquarters is located at 11500 North Mopac Expressw...

Page 16: ...and third party legal notices in the readme file for your NI product Refer to the Export Compliance Information at ni com legal export compliance for the National Instruments global trade compliance p...

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