SD Locator System is a solution of operating a mobile network operator
T-Mobile Czech Republic, a.s. The primary advantage is that the use of this product is adequate to any mobile phone SIM card in the T-Mobile. There is no need to buy any special equipment and then use the product SDLocator not burdened with no initial investment.
Any GSM mobile network operates on the principle that the mobile phone connects to your nearest transmitter operator. The motion is without our knowledge is always connected mobile phone to the nearest transmitter (BTS), respectively. the transmitter with the strongest and best quality mobile phone signal.
Mobile operator T-Mobile is striving to meet customers and their interest in the possibility of tracking. Thus, the location information to ensuring the highest possible data security, the need for prior activation, contract approvals, etc. access to the users.
For many years the tradition of T-Mobile offers a "where is". This service is ever allowed to determine the current location of the SIM card (or phone) by sending an SMS query. A novelty is that disclosure of location information via partners at regular intervals.
Authorized partner solution is the product of SD Locator. From the user perspective is a web application to get the user name and password. Security is ensured by global Microsoft technologies in a very similar scale such as Internet banking.
Use descriptive and graphical information, you can track the approximate location of the monitored phone. Accuracy of information increases the density of transmitters "BTS" (transmitters, which provide coverage of GSM signal). The greater the number of cells in the area, the greater the accuracy. So the city is typically more accurate information (hundreds of meters). The average accuracy of around 1 km in the city, which is usually more BTS transmitters accurate. Lower accuracy than GPS is offset by ease of deployment and simplicity of use. The advantage is the possibility of localization even when the SIM is being tracked indoors.
Each of the technologies thus has its specific use.