Discussion about Cell Phone Tracker Software – GPS Technology Details In order to adhere to Federal Communications Commission rules, cellular phone companies are required to be able to furnish authorities with cell phone latitude and longitude to an precision of 50 to 300 meters. Cell Tower Triangulation doesn’t always meet this condition. By way of evaluation, commercially accessible GPS modules can achieve accuracy right down to less than 10 meters. This relies on several factors, as GPS signals are often rather weak and are affected by many factors. With Mobile Location Services (MLS), the GSM cell network provider utilizes triangulation techniques to compute the position of the device, its accuracy is proven to be less than than that of GPS. MLS is further impacted by factors similar to GPS in the sense of the barriers impeding signal quality and the density of GSM towers to help in the triangulation calculation. In remote areas position accuracy may be off as much as a mile. GPS receivers, no matter if in a smart phone, or simply a specific GPS tracking device, calculate specific location by precisely timing the signals transferred by GPS satellites. This data comes with the moment the message was transmitted, specific orbital details (formally referred to as the ephemeris), and the basic system status and rough orbits of all GPS satellites (formally referred to as the almanac). GPS receivers sometimes take a long time to become ready to use after it’s turned on because it must acquire some basic information in addition to finding GPS satellite signals. This delay can be caused when the GPS smartphone has been turned off for days or weeks, or has been moved a far 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 position more quickly.