What Does Spread Spectrum Mean?
Spread spectrum is a technique used for transmitting radio or telecommunications signals. The term refers to the practice of spreading the transmitted signal to occupy the frequency spectrum available for transmission.
Techopedia Explains Spread Spectrum
One way in which spread spectrum is implemented is through frequency hopping, a technique in which a signal is transmitted in short bursts, “hopping” between frequencies in a pseudo-random sequence. Both the transmitting device and the receiving device must be aware of the frequency sequence.