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 the at least one mapping module, at least one communications module interoperative with each of the at least one tracking module and the at least one mapping module, and at least two antennae communicatively connected via the at least one communications module to at least one central processing unit. At least one of the at least two antenna is suitable for communications using at least two distinct to communication modes.