SSB Modulation Theory

Single Sideband (SSB) modulation is a technique used in radio communication to transmit a clear signal efficiently. Instead of sending the entire original signal (which includes both upper and lower sidebands), SSB transmits only one sideband—either the top or bottom portion of the spectrum—along with a suppressed carrier. By doing so, it reduces bandwidth usage and power consumption, making the signal more efficient. At the receiver, the missing sideband is reconstructed using the remaining sideband and the carrier. SSB is commonly used in long-distance radio communication, like ham radio and maritime radio, for clear and energy-efficient transmissions.