Patent ID: 7813876

Claim:
A portable computer assembly, comprising: a global positioning system module that produces location information associated with the position of the portable computer assembly; an L-band transceiver that broadcasts the location information to a satellite relay and receives location information from at least one portable communications device via the satellite relay; a processing unit that provides messages to the L-band transceiver and updates a display associated with the portable computer assembly according the received location information and the location information produced at the global positioning system module; and a Faraday cage that encloses the L-band transceiver and the global positioning system module to reduce electromagnetic interference with the L-band transceiver and the global positioning module, the Faraday cage comprising a back plate of the processing unit that forms one wall of the Faraday cage and a metallic enclosure that encloses the L-band transceiver and the global positioning system module and being configured as a heat sink to draw heat from the L-band transceiver away from the processing unit, the Faraday cage being mounted to a back of the processing unit.