Amateur Radio Stack Exchange
Amateur Radio Stack Exchange

Questions tagged [ssb]

Single Side Band - Amplitude Modulated signals transmitted using only one side band, often with suppressed carrier.

While summing two signals for amplitude modulation, two image signals are formed. To keep the bandwidth requirements low, one side band is discarded and only side band is transmitted. The side band above the carrier frequency is called the Upper Side Band and the frequency lower than the carrier is called the Lower Side Band. To conserve transmitter power, often the carrier is discarded as well.

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Why does SSB have the hollow voice sound?

When I listen to SSB, it has the very familiar tunnel-voice sound. What properties make it sound like this? With a Carrier and an extra sideband as AM, I don't hear the tunnel-effect at all. Is there special equipment to get rid of the effect?
Skyler 440
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What does a SSB signal look like?

I don't really get it. How is it possible to just send upper or lower side of a band (SSB USB/LSB): And how is it possible to send anything without the carrier wave! If I have misunderstood anything I am sorry because I am new to this and would…
Axel
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Why needs a carrier signal on receiver (SSB)

why does the receiver needs to add a carrier signal to the SSB signal? I am new to ham radio and can't so much.
Axel
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Why is analog TV vestigal side band and not SSB?

Analog TV signals have one sideband cut off to reduce their (very wide) bandwidth and save frequency space in the ether. The lower sideband is cut off, but not completely, the lower 1.25 MHz is kept resulting in a vestigial sideband signal. I've…
JanKanis
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Power efficiency of SSB-Large carrier

i was studying SSB demodulation and learned that a carrier is added to the SSB signal to make sure that envelope detection is possible. I came across a problem to find the percentage of power saved in this type of modulation if the modulation index…
Anjana Verma
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SSB Generation. 4th method?

The mode of SSB is alive and well. It has relevance for long-distance comms and does not waste spectrum. The orthodox methods of generation are Filter, Phasing and Weaver. These methods can be and are done in DSP or firmware but the fundamentals are…
Autistic
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Effect of frequency division on a signal's spectrum

I am constantly on the lookout for effective yet inexpensive means to generate SSB signals. Analog Devices' LTC5598 Direct Quadrature Modulator turns baseband analog I/Q signals into RF from 5MHz to 1.6GHz. Sadly, the performance falls off…
Brian K1LI
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LSB modulation and demodulation

A USB signal is basically a baseband signal shifted up in frequency. However, an LSB signal is the mirror image of a baseband signal then shifted up in frequency. How is this 'mirroring' modulation done in a transmitter and its demodulation done in…
Olsonist
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