Spectrum Signal Processing Inc.
TSX : SSY
NASDAQ : SSPI

Spectrum Signal Processing Inc.

November 10, 2005 13:30 ET

Spectrum Signal Processing Teams with MacDonald, Dettwiler and Associates for Advanced Satcom Terminal Demonstration

BURNABY, BRITISH COLUMBIA--(CCNMatthews - Nov. 10, 2005) -

Successful Reconfigurable Satellite Ground Terminal Over-the-Air Demonstration

Spectrum Signal Processing Inc. (TSX:SSY)(NASDAQ:SSPI) today announced that, together with MacDonald, Dettwiler and Associates Ltd. (MDA), the first over-the-air demonstration for the Advanced Satcom Terminal Technology Demonstration Program (AST TDP) was successfully completed. Spectrum is teamed with MDA, who is the prime contractor for the AST TDP, delivering the work for, and in collaboration with, Defence Research and Development Canada (DRDC) Ottawa. Spectrum provided the SDR-3000, a Software Communications Architecture (SCA)-enabled software defined radio platform for the terminal, as well as engineering services in support of this effort. MDA, as prime contractor, has been responsible for the system architecture, demonstrations and the development of the SCA-enabled waveforms. QinetiQ also supported the team through preliminary design activities and supporting development.

The AST TDP performed an over-the-air demonstration of a 512 kbps waveform based upon the Intelsat Business Standard. The demonstration took place over a C-band Telesat transponder. Subsequent laboratory demonstrations were able to show data rates in excess of 8 Mbps. The MDA, Spectrum & QinetiQ team has developed an effective approach for rapid and reliable development of communications waveforms that enables deployment on SCA-enabled systems as well as commercial boards. The receiver performance has been shown to be very close to the theoretical maximum.

Future plans include demonstrations of data rates of 2 Mbps and higher, as well as advanced protocols, reliability and robustness capabilities. Spectrum will be exhibiting on November 14-18, 2005 at the upcoming SDR Forum Technical Conference and Product Exposition, in Orange County, CA. MDA team members will show the Advanced Satcom Terminal demonstration in the Spectrum booth. MDA will also present a system overview along with detailed demonstration results at the conference.

ABOUT MACDONALD, DETTWILER AND ASSOCIATES LTD.

MDA provides advanced information solutions that capture and process vast amounts of data, produce essential information, and improve the decision making and operational performance of business and government organizations worldwide.

Focused on markets and customers with strong repeat business potential, MDA delivers a broad spectrum of earth and space based information solutions, ranging from complex operational systems, to tailored information services, to electronic information products.

MDA employs more than 2,500 people in locations across the United States, the United Kingdom, and Canada. The Company's common shares trade on the Toronto Stock Exchange under the symbol TSX:MDA.

ABOUT SPECTRUM SIGNAL PROCESSING INC.

Spectrum Signal Processing Inc. (TSX:SSY)(NASDAQ:SSPI) is a leading supplier of software defined platforms for defense electronics applications. Spectrum's products and services are optimized for military communications, signals intelligence, surveillance, electronic warfare and satellite communications applications. Spectrum's 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 applications 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 Spectrum's 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 company's 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 Spectrum's 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.

™ flexComm is a trademark of Spectrum Signal Processing Inc.

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