The present invention is a portable motion-activated position reporting
device. In one embodiment, a controller is coupled with an interrogator
component, a position determining component, a wireless communications
component, and an initiating component. In one embodiment, the initiating
component detects motion of the position reporting device and generates a
signal to the controller indicating the motion. The controller, in
response to the signal, activates the interrogator component and the
position reporting device.