NEWS RELEASE TRANSMITTED BY CCNMatthews

FOR:  SPECTRUM SIGNAL PROCESSING INC.

TSX SYMBOL:  SSY
NASDAQ SYMBOL:  SSPI

JULY 8, 2004 - 07:00 ET

U.S. Department of Defense JTRS Joint Program Office
Completes Successful Port of Cluster 1 Waveform to
Spectrum Signal Processing flexComm SDR-3000 Platform

COLUMBIA, MARYLAND--(CCNMatthews - Jul 8, 2004) - Spectrum Signal 
Processing (USA) Inc., a subsidiary of Spectrum Signal Processing 
Inc. (NASDAQ: SSPI / TSX: SSY), today announced that Boeing has 
successfully ported a software defined version of the COBRA 
waveform to Spectrum's SDR-3000 platform, including a successful 
test for interoperability with legacy receivers. 

"The COBRA waveform is the first of numerous waveforms which are 
expected to be ported to Spectrum's SDR-3000 over the next 
several years," stated a senior manager at the Joint Tactical 
Radio System (JTRS) Joint Program Office Technology Laboratory 
(JTeL). "With this significant JTRS milestone we have proven our 
premise that software defined waveforms developed on one 
contractor's hardware will work on properly designed radios of 
other contractors." He added, "This proof of waveform portability 
advances our mandate to provide portable waveforms to all of the 
U.S. Armed Services. Spectrum provided the hardware set and 
valuable application engineering services to the Government while 
working closely on-site with Boeing and JTeL personnel in the 
porting effort." 

"We are very proud of our contribution to this DoD (Department of 
Defense) success," stated James P. Atkins, President of Spectrum 
Signal Processing (USA) Inc. "This further validates Spectrum's 
leadership in software defined radio applications and illustrates 
one of our roles in next generation military communications." 

Spectrum's SDR-3000 platform was selected in August 2003 by the 
JTRS Joint Program Office (JPO) and its U.S. Navy Space and Naval 
Warfare Command's Technology Laboratory for independent 
verification and validation of Department of Defense JTRS 
waveforms for Software Communications Architecture (SCA) 
acceptance and compliance. 

COBRA is a legacy waveform that has been developed to be JTRS 
compliant by the Boeing Corporation under a JTRS JPO contract 
coincident with Boeing's Cluster 1 contract. Cluster 1 is the 
first of four JTRS Clusters to be tested with the Software 
Communications Architecture to ensure interoperability and 
portability across disparate networks. Joint tactical radios will 
be multi-mode and multi-band allowing one radio to communicate 
with numerous other different radios and will allow over-the-air 
programming of those sets. The new radios will carry information 
in real-time to the warfighter in the field, whether it be 
ground-based, shipborne, or airborne. Once fully implemented, the 
JTRS is expected to enable the information superiority necessary 
for more effective military engagements. 

The flexComm(TM) SDR-3000 is comprised of a heterogeneous 
processing platform incorporating Xilinx(TM) FPGAs, IBM and 
Motorola PowerPC(TM) processors, and Texas Instruments DSPs. The 
SDR-3000 platform can also include an integrated radio frequency 
transceiver and analog input/output modules. Software development 
tools include Spectrum's quicComm(TM) Hardware Abstraction Layer 
to facilitate algorithm partitioning and programming, an SCA Core 
Framework (CF) to enable the set up and teardown of waveforms as 
mandated by the JTRS JPO for all military communications 
programs, Spectrum's SCA Board Support Package that enables the 
SCA CF to identify and manage the platform resources, and a 
POSIX-compliant real-time operating system. 

About JTeL 

The JTRS Technology Laboratory is the testing and certification 
arm of the JTRS JPO, which provides JTeL tasking and direction. 
JTeL is tasked to: 

- Provide JTRS waveform acceptance and SCA-compliance 
recommendations to the JTRS JPO; 

- Provide JTR Set Operating Environment SCA-compliance 
recommendations to the JTRS JPO; 

- Maintain a repository of all certified JTRS Waveforms, waveform 
documentation, JTeL tools and products, and appropriate security 
algorithms; 

- Support the advancement of the SCA and standardization of 
application program interface; and, 

- Research new technology applicable to software defined radios. 

For more information, visit http://jtrs.army.mil. 

About Spectrum Signal Processing Inc. 

Spectrum Signal Processing Inc. (NASDAQ: SSPI/TSX: SSY) is a 
leading supplier of software reconfigurable 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, Maryland provides applications engineering services and 
modified COTS platforms to the U.S. Government, its allies, and 
its prime contractors. More information on Spectrum and its 
flexComm product line is available at www.spectrumsignal.com. 

(TM) flexComm and quicComm are trademarks of Spectrum Signal 
Processing Inc. 

(TM) Xilinx is a trademark of Xilinx Inc. 

(TM) PowerPC is a trademark of International Business Machines 
Corporation. 

This news release contains forward-looking statements related to 
the Spectrum Signal Processing Inc. flexComm product line. 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. 

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