updated 2/15/2011 8:47:42 AM ET 2011-02-15T13:47:42

COLORADO SPRINGS, Colo. and COLUMBIA, Md., Feb. 15, 2011 (GLOBE NEWSWIRE) -- Integral Systems, Inc., (Nasdaq:ISYS) announced today that its wholly-owned subsidiary, RT Logic, booked a record number of sales in the Company's recently closed first quarter for its industry-leading Telemetrix® 400 Channel Simulator (T400CS). Sales of the T400CS have increased more than 300 percent over the previous year's first quarter. In addition, the Company also expects strong sales to continue based on its near-term sales pipeline, which is substantially ahead of expectations.

RT Logic's Channel Simulator adds physics-compliant dynamic Doppler shift, delay, attenuation, noise and interference to test signals and waveforms. The instrument's precision Radio Frequency (RF) and Intermediate Frequency (IF) output signals are virtually indistinguishable from satellite, UAV, aircraft, missile, ship or weapons transmissions.

"The quarter's success and our positive outlook stem from the benefits our customers have achieved using the T400CS," said Steve Williams, Signal Monitoring Business Area Manager at RT Logic. "Moving forward, our focus will be on keeping our technical roadmap and bandwidth expansion aligned with our customers' evolving test and operational needs. It is our intent that this will support increasing domestic and international penetration in the government, military and commercial sectors, particularly around the growing UAV market and our traditional satellite-related market."

In the following use case, the T400CS can be connected between a satellite transponder and a UAV receiver. The instrument provides signals between the transponder and receiver precisely reflecting nominal and worst-case RF propagation, antenna patterns and locations, terrain effects, accidental and intentional interference and weather. The T400CS user can quickly measure transmitter/receiver performance against a virtually limitless set of dynamic RF conditions, without requiring a satellite to be in-orbit or a UAV to be airborne. The resulting improvements to hardware, firmware and software cost-effectively ensure mission success for critical communications links.

The T400CS is widely used for hardware, firmware and software test and verification during all lifecycle phases, from initial proof-of-concept through final R&D and manufacturing tests. It is also used in a broad cross-section of RF communications, electronic warfare, electrical engineering and communications equipment training applications.

ABOUT INTEGRAL SYSTEMS

Integral Systems, Inc., is a global provider of products, systems and services for satellite command and control, telemetry and digital signal processing, data communications, enterprise network management and communications information assurance. We specialize in developing, managing and operating secure communications networks, both satellite and terrestrial, as well as systems and services to detect, characterize and geolocate sources of RF interference. Our customers include U.S. and foreign commercial, government, military and intelligence organizations. For almost 30 years, customers have relied on the Integral Systems family of companies (Integral Systems, Inc., Integral Systems Europe, Lumistar, Inc., Newpoint Technologies, Inc., RT Logic and SAT Corporation), as well as our services organization, Integral Systems Service Solutions (IS3), to design and deliver innovative commercial-based products, solutions and services that are cost-effective and reduce delivery schedules and risk. Our dedication to "The Integral Difference" has solidified long-term relationships with the U.S. DoD, NASA, NOAA and nearly every commercial satellite operator in the world. For more information, visit www.integ.com .

CONTACT: Andrew Miller
         Vice President, External Communications
         Integral Systems, Inc.
         Phone: 443.539.5124
         amiller@integ.com

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