Abstract: A system for transmitting and receiving spread-spectrum communications without having to synchronize the incoming spread-spectrum code at a receiver with a copy of the spreading sequence. A spreading signal itself is modulated with an information signal. Consequently, the various demodulation techniques available to the receiver enable the transmission of unmodified analog as well as digital data. The receiver first removes the carrier wave component, and then the spreading signal from the information stream without costly and complex synchronization of the spreading signals.