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X-Change to Study SAW-Based Delay Lines and Temperature Sensors

September 19, 2006

NASA's Johnson Space Center to fund the further development of custom surface acoustic wave–based devices.

DALLAS /BUSINESS WIRE/ -- X-Change Corporation's wholly owned subsidiary, AirGATE Technologies Inc. has received from NASA's Johnson Space Center a purchase order for a study of surface acoustic wave (SAW) delay lines and temperature sensors.

The study is expected to lead to further development of custom SAW delay lines and temperature sensors. Today's news follows an August 3 release announcing AirGATE's sale of a (SAW) development system to NASA's Johnson Space Center.

The basic SAW device is a thin metal film structure deposited on top of a piezoelectric crystal substrate with no power supplies. It reflects radio signals based on the pattern etched onto its surface. These reflections can be decoded into data. In addition to RFID, SAW devices make very accurate temperature sensors. The devices work well in harsh environments, as well as in the presence of liquid and metals.

"We are extremely pleased by this expanding interest in our SAW systems and additional commitment from NASA - Johnson Space Center," stated Mike Sheriff, president and chief executive of X-Change Corp.

"Currently," added Sheriff, "X-Change is positioned to ship SAW RFID tags and reader systems in volume, in addition to custom SAW designs and applications." This, he said, is the result of an exclusive national agreement for sale and support of SAW RFID systems signed in January with Carinthian Tech Research, a leading Austria-based developer of SAW RFID devices and technology.

X-Change Corp., through its wholly owned subsidiary, AirGATE Technologies Inc., is a leader in unique, vertical market applications using RFID and wireless intelligent sensor technology. AirGATE Technologies, a full-solution company, handles business assessment, technology selection, including proprietary AirGATE technology, integration and support. The company has, in an environment of technology cost compression, built a stable of technology partners that are best in class and span a wide range of solutions to support small, medium, and large enterprises. For additional information, please visit AirGATE Technologies' Web site or X-Change's Web site.

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