| Information Product Category | | Sensitive GPS modules from NavSync |
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| | 2008-4-25 http://www.activecomponents.com | | | Normal GPS systems cannot track satellites below -175 dBW (-145 dBm) however the NavSync CW25-NAV can track down a further 10 dB resulting in tracking down to -185 dBW (-155 dBm). This makes it possible to track the person, asset or vehicle as they enter buildings, move under dense vegetation, or drive through dense urban canyons.
The CW25-ULS GPS model can also acquire the satellites in these locations when using Network Assistance techniques, or pre-loaded information.
In order to obtain this level of performance the CW25-NAV uses an innovative GPS engine which enables the system to search in parallel 12288 time/frequency bins. Not only does this enable better sensitivity but also makes for very rapid acquisition of the satellites. At outdoor signal levels the time taken to obtain a ¡®hot' position fix is under 2 seconds.
With a size of just 25 x 27 mm and provided as a tape and reel component, the CW25-NAV is specifically designed to be integrated with Communications devices such as GSM, CDMA, UMTS modems or any other communications medium. The CW25-TIM is optimised for the output of time/ frequency information. Another aid to integration is the ability to store users' software code in the CW25-NAV, reducing the need for external memory and processors.
Key Features of the CW25-NAV include:
• Enables indoor use -173 dBW acquisition and -185 dBW tracking
• Rapid Time To Fix <2 second outdoors
• Standalone CW25-NAV module. No GPS knowledge required for hardware integration
• 25 mm x 27 mm x 4.2 mm
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