A system and method for processing a received Global Positioning System (GPS) signal into a processed position finding GPS signal and for processing a first and a second input signal jointly with the GPS signal. A modulator and transmitter for modulation and transmission of processed signals in cellular systems and in mobile network, wherein cellular system and mobile network are distinct. A modulator and transmitter for transmission of processed signals in a satellite system and in a cellular system. Multiple Input Multiple Output (MIMO) transmitter and receiver having a transmit filter and a receiver filter wherein the transmit and receiver filter are mismatched. A modulator and transmitter which comprise cascaded hybrid systems, including a cascaded GSM or EDGE, of cascaded infrared (IR) or GSM or CDMA or TDMA or UMTS systems and contain Radio Frequency identification (RFID) signals.