DGPS Beacon Module is IEC 61108-4 compliant.

Press Release Summary:

Fully compatible with beacon radio navigation networks, SBX-4 differential GPS (DGPS) beacon module features dual-channel design and ceramic filter that blocks out-of-band signals to optimize reception. Boot loader ensures firmware upgradeability, and dual serial ports accommodate separate RTCM and NMEA communications Backwards-compatible with previous SBX modules, RoHS-compliant products suits OEMs who need to integrate precision beacon receiver module into their product.

Original Press Release:

Hemisphere GPS, a Division of CSI Wireless, Introduces New SBX-4 DGPS Beacon Module

Calgary, Alberta - November 28, 2006 - (TSX:CSY): CSI's Hemisphere GPS division, a global manufacturer of GPS products, has announced the introduction of its new SBX-4 differential GPS (DGPS) beacon module. The SBX-4 is the newest DGPS beacon module in Hemisphere GPS' SBX series, the world's most popular DGPS beacon modules.

The SBX-4 is designed for use by Original Equipment Manufacturers (OEM) who need to integrate a versatile precision beacon receiver module into their product.

"The new SBX-4 adds to our company's history of leadership and success in beacon products," said Steven Koles, President and CEO of Hemisphere GPS. "The SBX-4 is one of the few OEM products on the market that is IEC 61108-4 compliant and fully compatible with the beacon radio navigation networks."

The SBX-4 DGPS Beacon Module features:
· Dual channel design allowing for strongest signal or new closest station (database) tracking
· Patented ceramic filter blocks out-of-band signals to optimize reception
· Reverse compatibility simplifies integration with products based on the existing SBX-2 and SBX-3 modules
· Boot loader ensures firmware upgrade reliability
· Dual serial ports to accommodate separate RTCM and NMEA communications
· Certified IEC 61108-4 and RoHS compliant

The SBX-4 is a seventh generation differential radio beacon receiver that is designed and manufactured by Hemisphere GPS. It is a compact module that receives GPS differential correction data broadcast through a worldwide network of beacons. It is fully backward compatible with previous SBX modules and complies with the new IEC 61108-4 beacon standard for improved performance and additional features.

Hemisphere GPS has integrated the SBX-4 into several products including the new Crescent R110 DGPS Receiver.

For further information on this product, please visit www.hemispheregps.com.

About CSI Wireless and Hemisphere GPS
Hemisphere GPS, a division of CSI Wireless, designs and manufactures innovative, cost-effective GPS products for applications in agriculture, marine and other markets. CSI is a leader in several high-growth markets and owns leading brand names, numerous patents and other intellectual property. The Company's head office is in Calgary, Alberta, and it has major product development and sales and marketing facilities in Arizona, Kansas and Texas. For more information about CSI, go to www.csi-wireless.com.

For more information, please contact:

John Bohlke
Product Marketing Manager
Hemisphere GPS
Phone: (480) 348-9919
E-mail: jbohlke@hemisphergps.com

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