London, United Kingdom - September 13, 2005 - Spectrum Signal Processing Inc. announced today at the Defense Systems and Equipment International tradeshow the addition of the XMC-3311 high speed transceiver XMC/enhanced PMC (ePMC) module to its flexComm software defined radio (SDR) product line. The XMC-3311 is targeted at wide bandwidth processing applications including commercial and military satellite communications, signals intelligence and electronic warfare.

The XMC-3311 is one of the first commercial-off-the-shelf (COTS) products on the market to incorporate the Xilinx Virtex-4 field programmable gate array (FPGA). This new FPGA will simplify the algorithmic coding for Spectrums customers and provide higher performance, higher density and greater memory capacity for processing. The module is designed to the VITA 42.0 XMC switched mezzanine card and VITA 42.1 Parallel RapidIO specifications and is also backwards compatible with Spectrums existing ePMC-based products. In addition, Spectrum provides a high-speed packet interface that sets up physical and logical channels to route data flow from the FPGA through the modules fabric crossbar to the XMC connector. Spectrum expects that the packet interface alone will save its customers hundreds of hours that would otherwise be devoted to developing this functionality as part of their application.

"Consistent with Spectrums mix and match approach in creating SDR solutions, the XMC-3311 is compatible with any of Spectrums CompactPCI PCI/PCI-X and VME-based product families,?said Mark Briggs, Vice President of Marketing, Spectrum Signal Processing Inc. 揟his provides our customers with more options for defining signal processing platform configurations that best suit their application requirements. Customers who are developing multiple SDR applications will also enjoy the benefits from the use of common technology and application programming interfaces across different projects, ultimately lowering their cost and reducing development time."

The XMC-3311 has dual 12-bit analog-to-digital converters (ADCs) for input and a single 14-bit digital-to-analog converter (DAC) for output, each running at up to 213.33 mega samples per second in a single-width VITA 42.0 XMC form factor. The ADCs and DAC are integrated with a single user-programmable Xilinx Virtex-4 FPGA. A choice of the following Virtex-4 FPGA devices are available: LX40, LX60, LX80, LX100, LX160 or the SX55. These FPGA devices are user programmable for functions such as wide bandwidth signal processing and filtering in the digital domain. The module can also be used as an ePMC module. The ePMC standard is fully compatible with IEEE P1386.1 PMC standard but offers the additional benefit of dedicated low power Solano links between ePMC compliant carrier and mezzanine modules. Data can also be transferred over PCI, which provides an independent control path. Additional product details can be found at www.spectrumsignal.com/products.

The XMC-3311 is available for order immediately.

ABOUT SPECTRUM SIGNAL PROCESSING INC.

Spectrum Signal Processing Inc. (NASDAQ: SSPI / TSX: SSY) is a leading supplier of software defined platforms for defense electronics applications. Spectrums products and services are optimized for military communications, signals intelligence, surveillance, electronic warfare and satellite communications applications. Spectrums integrated, application-ready products provide its customers with compelling time-to-market and performance advantages while mitigating program risk and cost parameters. Spectrum Signal Processing (USA) Inc., based in Columbia, MD, provides application engineering services and modified commercial-off-the-shelf platforms to the US Government, its allies and its prime contractors. For more information on Spectrum and its flexComm product line, please visit www.spectrumsignal.com.

FORWARD-LOOKING SAFE HARBOUR STATEMENT

This news release contains forward-looking statements related to sales of the Spectrum Signal Processing Inc. flexComm product line. Although Spectrum has received orders for shipping flexComm product, development delays and customer issues could delay shipments. These statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve risks and uncertainties, including the timely development and acceptance of Spectrums new products, the impact of competitive products and pricing, availability of components, changing market conditions and the other risks detailed from time to time in other company filings. Actual results may differ materially from those projected. These forward-looking statements represent the companys judgment as of the date of this release and Spectrum may or may not update these forward-looking statements in the future. Readers are referred to Spectrums assumptions and risk factors set out in the most current Form 20-F filed with the Securities and Exchange Commission and the British Columbia Securities Commission.


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