What do you mean by single sideband modulation?

What do you mean by single sideband modulation?

In radio communications, single-sideband modulation (SSB) or single-sideband suppressed-carrier modulation (SSB-SC) is a type of modulation used to transmit information, such as an audio signal, by radio waves. A refinement of amplitude modulation, it uses transmitter power and bandwidth more efficiently.

What are the methods for SSB modulation?

There are three well known methods of SSB generation using analog techniques, namely the filter method, the phasing method, and Weaver’s method.

What is the main benefit of SSB?

The advantage of SSB is its narrow bandwidth and higher power efficiency than the other voice modes. The Other Options: The wide bandwidth of FM provides a higher fidelity, while the fidelity of SSB suffers with narrower bandwidth, so option ‘A’ is out.

How do you demodulate a single-sideband?

There are four ways to demodulate a transmitted single sideband (SSB) signal. Those four methods are: synchronous detection, • phasing method, • Weaver method, and • filtering method. Here we review synchronous detection in preparation for explaining, in detail, how the phasing method works.

What is meant by single modulation?

: a modulation used in a radio or telephone carrier in which the normal carrier signal is eliminated and one of the two modulation side bands is removed usually by filtering.

How is SSB signal generated?

SSB receiver This is achieved using an internal oscillator called a Beat Frequency Oscillator (BFO) or Carrier Insertion Oscillator (CIO). This generates a carrier signal that can be mixed with the incoming SSB signal, thereby enabling the required audio to be recovered in the detector.

What is the basic limitation of SSB modulation scheme?

Sideband Modulation − Disadvantages The generation and detection of SSB signal is a complex process. Quality of the signal gets affected unless the SSB transmitter and receiver have an excellent frequency stability.

In which situation SSB modulation is used?

Single sideband, SSB, modulation is used in many voice applications. It is used for HF communications, but forms have been used for analogue TV broadcasting. Single sideband modulation is widely used in the HF portion, or short wave portion of the radio spectrum for two way radio communication.

What is single sideband AM What is the advantage of SSB?

This SSB-SC or SSB system, which transmits a single sideband has high power, as the power allotted for both the carrier and the other sideband is utilized in transmitting this Single Sideband (SSB). Hence, the modulation done using this SSB technique is called as SSB Modulation.

What is an SSB radio?

So what is SSB Marine Radio? SSB Radio or Single Side Band Radio is a way of communicating over very large distances without the need for subscription or ongoing costs and tariffs. SSB is basically a ‘mode’ like FM or AM.

What is the difference between SSB and FM?

Firstly, FM is a constant-envelope modulation, meaning the amplitude is constant. SSB, being a kind of amplitude modulation, obviously does not have a constant amplitude. Consequently, FM can employ a non-linear amplifier which is more power efficient, and thus has a longer battery life in mobile operation.

What is the bandwidth of SSB?

In reality the bandwidth of the SSB signal is a little more complicated. The bottom frequencies are often limited to around 300 Hz, so this reduces the bandwidth to 2.7 kHz, and some transceivers tend to limit the frequency response even more to 2.4 kHz.

What is single-sideband AM What is the advantage of SSB?

Single sideband modulation, SSB is the main modulation format used for analogue voice transmission for two way radio communication on the HF portion of the radio spectrum. Its efficiency in terms of spectrum and power when compared to other modes means that for many years it has been the most effective option to use.

How is single side band SSB signal generated?

How does a SSB receiver work?

SSB receiver This generates a carrier signal that can be mixed with the incoming SSB signal, thereby enabling the required audio to be recovered in the detector. Typically the SSB detector itself uses a mixer circuit to combine the SSB modulation and the BFO signals.

What are advantages and disadvantages of SSB?

Advantages and Disadvantages of SSB Modulation

• 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.