Apparatus to determining a position, trajectory, pathway of an animate and/or inanimate object (either stationary or mobile); tracking transmitters which aid in the detection and location of animate and/or inanimate objects; apparatus for the tracking, location determination, and position placement of vehicles of all types (land, air, sea and space); apparatus for monitoring component functions of vehicles; sensor apparatus (other than for medical use); apparatus for the monitoring of personnel; body function monitoring apparatus (other than for medical purposes); human tracking apparatus; location determining devices; emergency position indicating apparatus; alarm systems and apparatus utilising position and health status data; position sensing devices