It is the job of the Ground Antennas to send commands, navigation data uploads, and processor program loads to the satellites, to collect telemetry, and to perform S-band ranging to provide anomaly resolution and early orbit support. The Master Control Station is responsible for the high-level control tasks like providing command-and-control of the GPS Constellations, computing their precise locations, Uploading navigation messages, and monitoring broadcast and system integrity to ensure constellation health and accuracy while Monitor Stations track the GPS Satellites as they travel overhead, collect navigation signals, range/carrier measurements, and atmospheric data and feed observations to the master control station. The current Operational Control Segment (OCS) includes a master control station, an alternate master control station, 11 command and control antennas, and 16 monitoring sites.

Without this, their accuracy will be affected. Satellites are not totally autonomous, since their exact position and location, in space and relative to Earth, needs to be monitors and updated constantly. The Control Segment is made up of the various command centers and 'Up-links' that feed updated data to an array of satellites and that control, monitor, and maintain them. The truth is that most people - including some experts called to testify to the technology in court - have a very limited understanding of how the technology works or - more importantly - its limitations. With this in mind, you can easily see that the standard relates more to the installation and functionality than to anything relating to its use or application. If the consumer phones the tracking company, can he with the right authorization, request and obtain the position of the vehicle, or alternatively can the consumer do it himself?

Does the unit have the ability to do a health check, where the consumer is notified the moment the system no longer is operational? Are the installation methods used safe, tested, and in line with the VESA installation standards as far as people and vehicle integrity and security are concerned? Are the suppliers' vehicle tracking products tested for compliance against accepted international standards? Can reliable recovery statistics be provided - Is this independently audited by a 3rd party? Category C (Stolen Vehicle Recovery & Fleet Management systems)Ī consumer (Business or individual) is advised to at least confirm the following when making a tracking selection: Category A (Stolen Vehicle Recovery systems) According to the website of the Motor Vehicle Security Association of South Africa (VESA), the following are the guidelines with regards to their standards: The truth is that the VESA standard is rather vague, really. In countries like South Africa, where vehicle hijackings and theft is a major issue, most insurers might insist on the installation of a 'VESA-approved tracking and recovery device' as a condition of cover. Most modern vehicles in most countries where asset recovery is a topic of interest are fitted with some or other 'Tracking System.' The system is either installed by design or installed afterward. I come across this all the time: People have their insurance claims repudiated (rejected) or they face criminal charges, based on speed data acquired from so-called 'Tracker Reports.'

Gps motor tracker