How To Track Cell Phone

Cell tracking, mobile GPS and mobile phone tracking tools are undoubtedly getting a lot of particular attention from potential buyers, cellular phone businesses and software makers. The most up to date mobile phones provide GPS locator functions to track smartphone location.

In order to conform to Federal Communications Commission rules, cellular phone companies are required to be able to deliver authorities with mobile phone latitude and longitude to an accuracy of 50 to 300 meters. Cell Tower Triangulation is not going to always satisfy this requirement. By way of evaluation, commercially available GPS modules will be able to realize accuracy right down to less than 10 meters. This is dependent upon numerous factors, as GPS signals tend to be rather weak and they are influenced by many variables. With Mobile Location Services (MLS), the GSM cellular network provider utilizes triangulation techniques to determine the location of the cell phone, its accuracy is proven to be much worse than that of GPS. MLS is also impacted by the same issues as GPS in the sense of the barriers affecting signal quality and the density of GSM towers to assist in the triangulation effort. In rural areas location accuracy may be off as much as a mile.

GPS Hot Start means when the GPS enabled handset remembers its last known position, the satellites that were in range before, together with the almanac data in memory, and tries to obtain the same satellites and calculate a new position based upon the previous data. This is generally the quickest GPS lock but Hot Start only works if the phone is in the same general area as when the GPS was last turned off. GPS Warm Start is whenever the GPS enabled smartphone keeps its last known position, and almanac used, but not which satellites were in view. It resets and tries to find satellite signals and calculates a new location. The GPS receiver narrows the choice of which satellites tolook for since it stored its last known position and the almanac data helps determine which satellites are in range. The Warm Start will need longer than the Hot Start although not as long as a Cold Start. With GPS Cold Start, the device deletes all the previous information, and tries to find satellites and obtain a GPS lock. This normally takes longer than other methods since there is no known reference information. The GPS enabled mobile phone receiver must attempt to lock onto a satellite transmission from any available satellites.

So as to get improved GPS lock times cellphone manufacturers and telco operators designed Assisted GPS technology. It downloads the ephemeris and helps triangulate the device basic position. GPS Receivers will get a faster lock at the expense of a few kilobytes of data transmission. Assisted GPS, often known as A-GPS or AGPS, helps the performance of standard GPS in mobile phones connected to the cell network. In the US Sprint, Nextel, Verizon Wireless, and Alltel all use A-GPS. This is a means of utilizing the cellular network to accelerate acquisition of GPS satellites.

A-GPS assists location tracking performance of mobile phones (and other connected devices) in a couple of ways:

The first method will be assisting to obtain a more rapid “time to first fix” (TTFF). Assisted GPS acquires and archives information regarding the location of satellites via the cell network so the location information does not require to be downloaded via the satellite.

Another approach is by helping locate cell phones when GPS signals are weak or impeded. Since GPS satellite signals may be impeded by tall structures, and do not pass through building interiors well AGPS uses distance to cellular towers to calculate position when GPS signals are not available.

In the event that satellite signals are not readily available, or precision is less important than life of the battery, employing Cell-ID is a viable substitute to GPS mobile phone location. The position of the device might be determined by the cell network cell id, which pinpoints the cell tower the cellphone is connected to. By knowing the position of this tower, you may know roughly the spot where the handset might be. However, a tower can cover an enormous area, from a few hundred meters, in high populationdensity zones, to a few kilometers in lower density zones. This is the reason location CellID accuracy is lower than GPS accuracy. Having said that monitoring from CellID still delivers a truly good alternative.

Another way of determining device position is Triangulation or Mobile Location Services (MLS). Cell Tower Triangulation utilizes signal analysis data to compute the time it takes signals traveling from your telephone to no less than 3 cell towers to determine position.

How To Track Cell Phone