AT4 Wireless Selects Azimuth Systems’ ACE™ 400WB Channel Emulator For Mobile WiMAX™ Testing

ACTON, MA – September 29, 2008 – Azimuth Systems, Inc., a leading provider of wireless broadband test equipment and channel emulators for WiMAX™, 4G and Wi-Fi®, today announced that AT4 wireless, a global supplier of testing solutions for wireless technologies, has selected the Azimuth ACE 400WB channel emulator for integration into AT4 wireless’ automated WiMAX interoperability testing solution. ACE 400WB integration allows AT4 wireless to emulate numerous real-world conditions necessary for accurate and repeatable RF performance, mobility and interoperability testing in a laboratory environment.

AT4 wireless, the first world-wide WiMAX Forum® Designated Certification Laboratory and WiMAX Forum lead laboratory, provides key services to the WiMAX industry, including the certification of WiMAX CPEs and base stations. The company will use the ACE 400WB as a critical element in the automation of WiMAX interoperability testing performed at its US-based WiMAX Certification and testing lab in Herndon, VA. The laboratory is the site of conformance, interoperability and performance testing for vendor and service provider infrastructure and mobile devices.

“The use of the ACE 400WB system in AT4 wireless’ WiMAX interoperability testing has enabled us to not only automate the process in order to make testing more efficient, but also to incorporate the ability to effectively emulate real-world multipath conditions such as shadowing, path loss and propagation delay,” said Jose Aurelio Rodrigo, chief operating officer of AT4 wireless, Inc. “The fact that Azimuth Systems provides unparalleled expertise in channel emulation testing made the selection of the ACE 400WB a logical choice for us.”

The ACE 400WB features industry-leading channel modeling capabilities designed specifically to test the enhanced capabilities required for MIMO-based WiMAX testing. Offering extreme ease-of-use, a flexible scripting environment, full bi-directionality and superior RF fidelity, the ACE 400WB readily supports the demanding requirements of WiMAX conformance, performance and interoperability testing.

“We’re pleased that AT4 wireless has selected the Azimuth ACE 400WB to perform automated WiMAX interoperability testing that will provide operators and subscribers with the confidence that WiMAX devices will easily and seamlessly work together,” said George Reed, vice president of marketing and product management at Azimuth Systems. “We remain committed to continued support of AT4 wireless’ world-class WiMAX testing efforts.”

About AT4 wireless

AT4 wireless, a global supplier of Testing Solutions for wireless technologies, prides itself on being both the most complete Wireless Certification & Testing Laboratory in the world and a leading manufacturer of cutting-edge test & measurement equipment for telecommunication technologies.

AT4 wireless, Inc.

AT4 wireless, Inc. is the first North America-based certification test laboratory, accredited by the WiMAX Forum® in 2007. The lab is located in Herndon, Virginia, easy to access due to its vicinity to the Washington-Dulles International Airport. AT4 wireless, Inc. conducts WiMAX Forum® Certification Testing, including Radio and Protocol Conformance testing, Mobile Interoperability testing and Radiated Performance Testing (RPT). AT4 wireless is the first location worldwide to offer RPT Testing for WiMAX devices.

AT4 wireless was founded in 1991, has more than 350 employees and operates from its headquarters in Malaga/Spain and its US-based branch in Herndon/VA. For more information, visit www.at4wireless.com

About Azimuth Systems

Azimuth Systems is a leading provider of wireless broadband test equipment and channel emulators for Wi-Fi, WiMAX, LTE and other 4G technologies. Azimuth’s products are used by the world’s foremost wireless semiconductor designers, system vendors and service providers to speed time-to-market and improve wireless product quality. Azimuth’s standardized test solutions enable research, development, QA and marketing engineers to test the performance, conformance and certification of broadband wireless devices and networks supporting data, voice and video applications. The company is based in Acton, Massachusetts and is backed by prestigious investors including Kodiak Venture Partners and North Bridge Venture Partners. Azimuth may be contacted at (978) 263-6610 or at www.azimuthsystems.com.

Azimuth^® is a registered trademark of Azimuth Systems and ACE™ is a trademark of Azimuth Systems. All other trademarks are property of their respective owners. "WiMAX Forum" and the WiMAX Forum Certified logo are registered trademarks of the WiMAX Forum. "WiMAX," "Mobile WiMAX," "Fixed WiMAX," "WiMAX Certified," "WiMAX Forum Certified" and the WiMAX Forum logo are trademarks of the WiMAX Forum. Other trademarks contained in this document are the property of their respective owners.

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For additional information, contact:

Graham Celine
Azimuth Systems, Inc.
978-268-9220
graham_celine@azimuthsystems.com