Mobile unit and system having integrated mapping, communications and tracking

摘要

A handheld device and system, in which such device and system include at least one mapping module, at least one tracking module interoperative with said at least one mapping module, at least one communications module interoperative with each of said at least one tracking module and said at least one mapping module, at least two antennae communicatively connected via said at least one communications module to at least one central processing unit, wherein at least one of said at least two antenna is suitable for communications using at least two distinct communication modes.