This thesis deals with the study of series products of global positioning system (GPS).The integrated analysis of GPS navigation, digital multimedia broadcasting (DMB), and general packet radio service (GPRS) is presented. The operations of GPS, DMB, and GPRS are performed and measured, respectively, to get their corresponding C/N values to check if the operations of GPS and GPRS are affected by DMB, so as to find out how the video improvement of associated GPS products can be achieved.