What is GPRS

GPRS - General Packet Radio Service With GPRS the Eyetek tracker is connected all the time and positions are sent at pre-set intervals. Each position is 36 bytes only, but a 'header' must be also sent, which doubles the size of data being transmitted. Even though some operators charge for the header, the size of data sent is still very small. The internal algorithm makes sure that data is sent only when your vehicle moves by a set distance, time and angle keeping costs very reasonable - with default settings travelling 1,000 miles per month you can expect to transmit approximately 1MB of data. Cost per MB varies from operator to operator, On orange it cost aprox £4 per MB on PAYG cards. If you are using a PAYG SIM card, you will need to make sure that it is charged, otherwise the unit will not be able to transmit. It will, however, store positions in the internal memory (up to 250,000 positions can be stored) and will transmit them as soon as you add credit. Data is sent to our web server, where it waits for you to download it through your broadband connection using the Navigator tracking software.