The company will host a conference call which will be broadcast over the Internet that same day at 10 a.m. Eastern Standard Time. This call is being webcast by Thomson and can be accessed from the Investor section of Keithley's website at keithley.com.

The webcast is also being distributed through the Thomson StreetEvents Network. Individual investors can listen to the call at earnings.com, Thomson's individual investor portal, powered by StreetEvents. Institutional investors can access the call via Thomson StreetEvents (streetevents.com), a password-protected event management site.

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The webcast is also being distributed through the Thomson StreetEvents Network. Individual investors can listen to the call at www.earnings.com, Thomson's individual investor portal, powered by StreetEvents. Institutional investors can access the call via Thomson StreetEvents (www.streetevents.com), a password-protected event management site.

With more than 60 years of measurement expertise, Keithley Instruments has become a world leader in advanced electrical test instruments and systems from DC to RF (radio frequency). Our customers are scientists and engineers in the worldwide electronics industry involved with advanced materials research, semiconductor device development and fabrication, and the production of end products such as portable wireless devices. The value we provide them is a combination of products for their critical measurement needs and a rich understanding of their applications to improve the quality of their products and reduce their cost of test.

SOURCE: Keithley Instruments, Inc.

Keithley Instruments, Inc. 
Vice President and Chief Financial Officer 
Mark J. Plush, 440-248-0400

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This webinar will introduce the basic concepts of the wireless communication channel, MIMO channel sounding, and channel emulation. Further, it will introduce a flexible and cost-effective RF test system that can be used for performing channel sounding, channel emulation, and functional testing of MIMO wireless devices. The webinar is recommended for MIMO wireless system and radio designers, including hardware and algorithm developers and wireless communications researchers.

Presenter Jake Sanderson is a lead RF applications engineer for Keithley Instruments. He supports MIMO applications in R&D and education, including the development of a MIMO channel sounding application. Before joining Keithley Instruments, Jake was a systems engineer with Agilent Technologies and Hewlett-Packard, developing manufacturing test solutions for the wireless semiconductor industry.

Registration Information.

"Understanding MIMO Channel Sounding" will be broadcast on Thursday, September 24, 2009, at 3:00 p.m. Central European Summer Time (CEST) (9:00 a.m. Eastern Daylight Time (EDT)) for the European audience and at 2:00 p.m. EDT (8:00 p.m. CEST) for the North American audience. The event is free to the public, but advance registration is required at www.keithley.com/events/semconfs/webseminars. The webinar also will be archived on Keithley's website for those unable to attend the original broadcast.

For More Information.

For more information on Keithley or any of its test solutions, visit www.keithley.com or contact the company at:

Telephone:   800-688-9951
             440-248-0400
FAX:         440-248-6168
E-mail:      publisher@keithley.com
Internet:    www.keithley.com
Address:     Keithley Instruments, Inc.
             28775 Aurora Road
             Cleveland, OH 44139-1891

About Keithley Instruments, Inc.

With more than 60 years of measurement expertise, Keithley Instruments has become a world leader in advanced electrical test instruments and systems from DC to RF (radio frequency). Our customers are scientists and engineers in the worldwide electronics industry involved with advanced materials research, semiconductor device development and fabrication, and the production of end products such as portable wireless devices. The value we provide them is a combination of products for their critical measurement needs and a rich understanding of their applications to improve the quality of their products and reduce their cost of test.

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

SOURCE: Keithley Instruments, Inc.

Keithley Instruments, Inc. 
Ellen Modock, 440-498-2746 
modock_ellen@keithley.com 
or 
Reader Inquiries: 1-800-688-9951