Editor Contact: Julia Betts, (512) 683-8165

Reader Contact: Ernest Martinez, (800) 258-7022

National Instruments Delivers Industry-Leading RF Performance in PXI Form Factor New PXI RF Vector Signal Analyzer’s Performance Surpasses Traditional Rack-and-Stack Instrumentation

AUSTIN, Texas – Feb. 21, 2011 – National Instruments (Nasdaq: NATI) today introduced the NI PXIe-5665, a

3.6 GHz RF vector signal analyzer (VSA) that delivers best-in-class RF performance in a cost-effective PXI form

factor. The new VSA features industry-leading phase noise, average noise level, amplitude accuracy and dynamic

range. The VSA’s PXI platform also facilitates peer-to-peer streaming; includes a flexible multiple input, multiple

output (MIMO) architecture for phase-coherent measurements; and offers measurement speeds that are at least

five times faster than traditional rack-and-stack instruments – all of which make it ideal for demanding automated

RF test applications.

“Not only is the NI PXIe-5665 VSA the highest performing instrument in its class, but it is available at a fraction

of the cost of traditional rack-and-stack instruments,” said Phil Hester, senior vice president of research and

development at National Instruments. “Because our new PXI RF analyzer combines high-end performance with

modular flexibility into one compact, affordable package, engineers now can use the same instrument from design

to production.”

The VSA combines the new NI PXIe-5603 downconverter with the new NI PXIe-5653 local oscillator synthesizer

and the NI PXIe-5622, a 150 MS/s intermediate frequency (IF) digitizer. This combination creates an ideal

solution for spectrum and wideband vector signal measurements over a frequency range from 20 Hz to 3.6 GHz

with analysis bandwidths up to 50 MHz. The new VSA features an exceptionally low phase noise of -129 dBc/Hz

at a 10 kHz offset at 800 MHz, an average noise level of -165 dBm/Hz, a third-order intercept point of +24 dBm

and absolute amplitude accuracy of ±0.10 dB. These specifications make the NI PXIe-5665 the highest

performing instrument in its class.

For modulated signal analysis, the VSA’s unique onboard self-calibration tool makes it possible to achieve an IF

amplitude response of ±0.15 dB and IF phase linearity of ±0.1 degree. This accuracy facilitates exceptional error

vector magnitude performance of less than 0.21 percent for a 256-QAM signal. The VSA’s flexible, modular

architecture expands to provide phase-coherent acquisition for MIMO test, as well as a 20 GHz/s scan rate and

peer-to-peer streaming for efficient spectrum monitoring. Additionally, engineers can operate the NI PXIe-5665

using its RF list mode function to deterministically step through a user-defined set of RF configurations using

internal timing or an external trigger to significantly reduce test time.

Because the NI PXIe-5665 joins a product line of more than 1,500 software-defined PXI modular instruments,

engineers can mix and match the VSA with a variety of modules and control an entire automated test system with

NI LabVIEW graphical system design software. This makes PXI systems ideal for a multitude of automated test

applications. Engineers also can fully take advantage of the VSA’s software-defined performance with RF

software toolkits for LabVIEW, NI LabWindows™

/CVI and .NET to test the latest RF and wireless

communication standards including GSM/EDGE, WCDMA, LTE, WLAN and WiMAX.

To learn more about the NI PXIe-5665 VSA, readers can visit www.ni.com/rf.

About National Instruments

National Instruments (www.ni.com) is transforming the way engineers and scientists design, prototype and deploy

systems for measurement, automation and embedded applications. NI empowers customers with off-the-shelf

software such as NI LabVIEW and modular cost-effective hardware, and sells to a broad base of more than 30,000

different companies worldwide, with no one customer representing more than 4 percent of revenue and no one

industry representing more than 15 percent of revenue. Headquartered in Austin, Texas, NI has more than 5,200

employees and direct operations in more than 40 countries. For the past 12 years, FORTUNE magazine has

named NI one of the 100 best companies to work for in America. Readers can obtain investment information from

the company’s investor relations department by calling (512) 683-5090, e-mailing nati@ni.com or visiting

www.ni.com/nati.

Pricing and Contact Information

NI PXIe-5665 vector signal analyzer

Priced* from $29,999; €28,799; ¥4,200,000

Web: www.ni.com/rf

*All prices are subject to change without notice.

11500 N Mopac Expwy, Austin, Texas 78759-3504

Tel: (800) 258-7022, Fax: (512) 683-9300

E-mail: info@ni.com

CVI, LabVIEW, National Instruments, NI and ni.com are trademarks of National Instruments. The mark LabWindows is used under license

from Microsoft Corporation. Windows is a registered trademark of Microsoft Corporation in the United States and other countries. Other

product and company names listed are trademarks or trade names of their respective companies.

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