Information about Mobile Phone Apps for GPS Monitoring

Methods for Mobile Phone Tracking – GPS Technological DetailsUnder FCC rules for emergencies (e911) GPS data, is sent only during an emergency 911 call. Cell phones could possibly have GPS and also the device might “know” exactlyits position, but it is unable to “tell” anyone else its position, until linked to a cellular network. In order to comply with Federal Communications Commission guidelines, cell phone companies must be able to furnish authorities with handset latitude and longitude to an precision of 50 to 300 meters. Cell Tower Triangulation doesn’t always meet this condition. For comparison, commercially accessible GPS systems can obtain accuracy right down to 3-10m. This is dependent upon many factors, as GPS signals are often pretty weak and they are affected by many factors. With Mobile Location Services (MLS), the GSM cellular network provider uses triangulation techniques to compute the position of the device, its accuracy is proven to be less than than that of GPS. MLS is also affected by the same issues as GPS in the sense of the interference impeding signal strength and the density of GSM towers to help in the triangulation effort. In remote areas location accuracy may be off as much as a mile. GPS receivers, no matter whether in a mobile phone, or perhaps a specific Portable gps tracking system, compute location by way of precisely timing the signals transferred by GPS satellites. This critical information incorporates the time the message was sent, highly accurate orbital details (formally called the ephemeris), as well as the basic system status and calculated orbits of all GPS satellites (formally called the almanac). GPS receivers often take longer to become ready to navigate after it’s turned on because it must acquire some basic information in addition to capturing GPS satellite signals. This slow start is sometimes caused when the GPS device has been unused for days or weeks, or has been transported a significant distance while unused. The GPS must update its almanac and ephemeris data and store it in memory. The GPS almanac is a set of data that every GPS satellite transmits. When a GPS receiver has current almanac data in memory, it can acquire satellite signals and compute initial location faster.

Information about Mobile Phone Apps for GPS Monitoring