Who uses single-sideband?

SSB (Single Sideband) is an obscure but very important way to communicate via radio. It is used primarily for two-way voice communication by ham radio operators, aircraft and air traffic control (ATC), ships at sea, military and spy networks. Occasionally some shortwave broadcast stations use this format.

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.

Why SSB transmission is preferred?

SSB takes advantage of the fact that the entire original signal is encoded in each of these "sidebands". It is not necessary to transmit both sidebands plus the carrier, as a suitable receiver can extract the entire original signal from either the upper or lower sideband.

Is SSB better than AM?

An SSB radio transmitter suppresses the carrier and one of the redundant sidebands, and thus transmits the operator's voice in less than half the bandwidth of an AM signal, and with much more efficient use of energy.

Are SSB radios worth it?

Most people can skip the more expensive SSB, but the extra money is worth it if you want more serious SHTF scenarios covered and/or expect to get involved in ham. There's no way to plug in an external antenna, but it does include a reel antenna that clips onto the built-in antenna, improving shortwave reception.

Understanding Single Sideband

Is single sideband still used?

SSB (Single Sideband) is an obscure but very important way to communicate via radio. It is used primarily for two-way voice communication by ham radio operators, aircraft and air traffic control (ATC), ships at sea, military and spy networks. Occasionally some shortwave broadcast stations use this format.

Do people still broadcast on shortwave?

At the moment the major shortwave broadcasters are BBC, Voice of America, All India Radio, China Radio International, Radio Japan, Radio Romania, KBS Korea and Voice of Turkey and many more.

What are the disadvantages of single side band transmission?

What is the main disadvantage of SSB?

Disadvantages of SSB-SC Modulation

The SSB transmitter and receiver need to have an excellent frequency stability . A slight change in frequency will hamper the quality of transmitted and received signal . Therefore, SSB is not generally used for the transmission of good quality music.

Why is SSB not used for broadcasting?

When carrier is shifted to bandpass, this one sided bandwidth becomes 9 MHz. This is nearly ten times as large as the total bandwidth occupied by all the channels of the AM radio. Use of SSB modulation would cut this in half but SSB is not used for video signals because of the complexity of the SSB receivers.

Which is better DSB or SSB?

We can see that the SSB transmission does not suffer from the effect of power fading induced by fiber dispersion, while the DSB has a high tolerance to power fading, due to the low frequency of RF carrier [8] . The DSB has a better performance than SSB under short distance because of double sideband. ...

What are the advantages of SSB systems?

Sideband Modulation − Advantages

Bandwidth or spectrum space occupied is lesser than AM and DSB signals. Transmission of more number of signals is allowed. Power is saved. High power signal can be transmitted.

Which one of the following is an advantage of SSB?

Which of the following is an advantage of SSB over DSB? Explanation: In a signal, only the sidebands contain the information. Also, there is a duplication of the information in each sideband. Thus one sideband is sufficient form transmission as compared to DSB where both the sidebands are present.

Which modulation is used in TV transmission?

Amplitude and frequency modulation are used in television.

What is SSB in 5g?

SS Block(SSB) stands for Synchronization Signal Block and in reality it refers to Synchronization/PBCH block because Synchnronization signal and PBCH channel are packed as a single block that always moves together.

Which method is practically used for SSB generation?

The two methods of SSB generation are (i) frequency discrimination method and (ii) the phase discrimination method. The frequency discrimination method of SSB generation given in figure 1, is based on suppressing one of the sidebands from the double-side-band suppressed carrier (DSB-SC) modulated waveform.

Why are sidebands made?

Side bands are produced during the process of modulation. During modulation, the audio frequency modulating signal wave is superimposed on a high frequency wave called carrier wave. Any form of modulation produces frequencies that are the sum and difference of the carrier and modulating frequencies.

Why is it called Dsbfc?

The transmission of a signal, which contains a carrier along with two sidebands can be termed as Double Sideband Full Carrier system or simply DSBFC.

Is shortwave radio making a comeback?

In a world of mobile phones, satellites and the internet, some old school technology is making a major comeback. The shortwave radio, used by spies for decades to send encrypted messages, is being resurrected for the war in Ukraine.

Is it worth buying a shortwave radio?

If you want a complete shortwave experience so you are able to listen to amateur broadcasters and communications from all around the world, it's worth the cost. Overall convenience. Other than the more technical stuff, you should consider features that make a radio fit your specific needs or interests.

Is shortwave coming back?

“Higher bitrates, with better audio, often don't get through.” Given these facts, Andy Sennitt said he expects “shortwave broadcasting to Europe and North America will be almost totally phased out, but there will still be shortwave services to Africa and parts of Asia.” These services will continue until those regions ...

Is SSB radio still used?

As satellite communication equipment becomes more reasonably priced, more reliable, and more compact, we often hear sailors raise the question, Are single-sideband radios even relevant anymore? As Lanier points out, the question is easy to answer: Yes, absolutely.

How far can a SSB radio transmit?

SSB (Single Sideband) radio has a much greater range than a VHF (Very High Frequency) radio's typical 35 to 50 nautical miles. Medium Frequency (MF) SSB radio has a range of around 400 nautical miles, but High Frequency (HF) will reach out for several thousand.

Do ships still use HF radio?

HF Simplex single sideband radiotelephone frequencies are provided for worldwide common use by ships of all categories, for communications with coast stations or other ships. Global Maritime Distress and Safety System distress and safety working frequencies are also listed.