What Is a Spread Spectrum Clock?
Spread-spectrum clocks are signal-generating techniques that modulate a specific spectrum of electromagnetic energy in such a manner as to broaden the frequency of the signal spectrum. The resultant bandwidth is much larger than is necessary for sending information, and this larger frequency bandwidth safeguards against jamming and interference; it also makes possible access to multiple users. Inherent in spread spectrum techniques is the use of noise-like signals, which makes such signals hard to detect or block.
