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Hemisphere GPS Awarded Two New GPS Technology Patents

December 4, 2007
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Calgary, AB -November 26, 2007 - (TSX: HEM) Hemisphere GPS, a leading designer and manufacturer of advanced GPS products proudly announces that it was recently awarded two new patents for innovative technology.

The Method and System for Synchronizing Multiple Tracking Devices for a Geo-Location System patent (U.S. Patent No. 7,292,186) enables more robust and cost effective heading by using a single processor to compute heading from multiple GPS receivers. Hemisphere GPS’s Attitude Determination Exploiting Geometry Constraints patent (U.S. Patent No. 7,292,185) increases the speed and reliability of Real-Time Kinematic (RTK) solutions for multiple antennas at known distances from each other. The entire system can be moving or stationary while computing the RTK solutions.

Hemisphere GPS customers are already reaping the benefits of the technological advances recognized by these patents. These newly patented techniques are currently part of the Company’s successful Crescent® Vector GPS technology and the recently announced Eclipse™ dual-frequency OEM board. This Crescent technology is key to the superior performance of Hemisphere GPS’ Vector™ products including the V100 series, the VS100 series, and OEM derivatives. Vector products function like a GPS compass and deliver greater precision than traditional heading solutions such as gyrocompasses and fluxgate compasses. The V100 and VS100 series products are specifically designed for marine navigation, hydrographic applications, and antenna pointing applications.

These software based patents are key components of the leading edge Crescent and Vector GPS technologies, and allow Hemisphere GPS to offer high accuracy and performance to its customers at extremely competitive prices.

“We are very pleased to be awarded these new patents,” says Dr. Michael Whitehead, Chief Scientist of Hemisphere GPS. “Our commitment to providing our customers with the most benefit and greatest value in application specific solutions doesn’t allow us to produce “one size fits all” products. These patents are further evidence of our dedication to bring innovative technology and optimized solutions to the marketplace.”

About Hemisphere GPS

Hemisphere GPS designs and manufactures innovative, cost-effective GPS products for positioning, guidance, and machine control applications in agriculture, marine and other markets. The Company holds numerous patents and other intellectual property and owns leading brand names, including Outback GuidanceÒ, one of the leading brands in precision GPS for ground agriculture. The Company is headquartered in Calgary, Alberta, with major product development, sales, and marketing facilities in Arizona, Kansas, and Texas. For more information about Hemisphere GPS, please go to

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