What is a SSB Modulation and Its Applications

The modulation like SSB or single-sideband modulation is extensively used in the radio spectrum of short wave or HF portion for radio communications in two ways. This communication uses SSB modulation, and the applications of this range from marine, HF point to point transmissions, military as well as radio amateurs or radio hams. This modulation is derived from AM (amplitude modulation) because; it overcomes several drawbacks of AM. Generally, this modulation is used for various purposes like voice transmission and where radio communication in two ways using the analog signal is necessary.

What is SSB Modulation?

The single-sideband modulation definition is a modulation which is used for transmitting information like an audio signal through radio waves. This modulation is used in radio communications by using transmitter power & more bandwidth efficiently for an alteration of AM (amplitude modulation). There are many radio communication devices available in the market which use single sideband radio like SSB Tx, SSB Rx, and SSB transceiver.


There are several variations are used for SSB modulation like lower sideband(LSB), upper sideband (USB), double sideband (DSB), Single Sideband Suppressed Carrier (SSB SC), Vestigial Sideband (VSB), and SSB reduced carrier.

Power Measurement of SSB

It is frequently required to describe the o/p power of an SSB transmission. For instance, it is essential to identify the transmitter power which is used for mutual radio communication to allow its efficiency for specific applications. The power measurement used for an SSB signal is not easy because the actual o/p power depends upon the stage of the modulating signal. So to overcome this, PEP (peak envelope power) can be employed.

This receives the RF envelope power for the conduction & the peak level signal can be used at any time. The peak envelope level for power can be calculated in Watts. These are just the power stages related to 1 Watt otherwise 1 mW.

Advantages and Disadvantages of SSB Modulation

The advantages of single-sideband modulation mainly include the following.

  • The occupied spectrum space otherwise BW is smaller than amplitude modulation & DSB signals.
  • Broadcast of an additional number of signals can be allowable.
  • Power can be saved
  • The transmission of the high signal can be done
  • The amount of noise present is less
  • Loss of signal is less

The disadvantages of single-sideband modulation mainly include the following.

  • The discovery & generation process of the single-sideband signal is complex.
  • Signal quality will be affected when the transmitter & receiver of SSB have outstanding frequency strength


The applications of SSB modulation include the following.

  • This modulation is used in where power-saving and bandwidth are required.
  • It used in air, land & maritime communications.
  • Used in radio & point to point communications
  • Used in communications like telemetry, TV, & radar
  • It is used in military communications like amateur radio, etc.

Thus, SSB modulation is used for transmitting analog voice for mutual radio communication on the HF segment of the radio spectrum. It is used most effectively in terms of power and spectrum when we evaluated to other forms. So this modulation provides an efficient solution for mutual radio communication as it gives an important development inefficiency. Here is a question for you, what is the function of SSB Modulation.

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