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CSI Wireless employs vehicles’ standard AM/FM car antenna to receive precise location signals

CALGARY, Alta. -- CSI Wireless has been awarded a patent for its antenna splitter technology. The AVL-1 antenna sig...


CALGARY, Alta. — CSI Wireless has been awarded a patent for its antenna splitter technology. The AVL-1 antenna signal splitter uses a vehicle’s standard AM/FM radio antenna to receive accurate differential GPS signals.

GPS accuracy enhancement enables users to improve their location accuracy to within one to five metres – substantially better than the 20-metre accuracy that is typically available from standard GPS.

Manufacturers like the enhanced accuracy of differential GPS, but they have struggled with its extra costs, and with the fact it requires an additional antenna on the vehicle. CSI Wireless’ AVL-1 signal splitter provides a cost-effective and convenient solution by employing the vehicle’s existing AM/FM car antenna – eliminating the need for another antenna.

Differential GPS positioning data for applications such as car navigation, stolen vehicle tracking and recovery, Intelligent Transportation Systems, and 911 emergency and safety applications.

The AVL-1 enables a standard AM/FM antenna to interface with CSI Wireless’ 300 kHz beacon differential technology. The splitter effectively inserts itself between the vehicle’s antenna and the radio, with a connector to one of CSI Wireless’ DGPS receivers. This eliminates the need for additional external DGPS antennas on all vehicles equipped with AM/FM antennas.


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