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  2. Baseband - Wikipedia

    en.wikipedia.org/wiki/Baseband

    A baseband signal or lowpass signal is a signal that can include frequencies that are very near zero, by comparison with its highest frequency (for example, a sound waveform can be considered as a baseband signal, whereas a radio signal or any other modulated signal is not). [2] A baseband bandwidth is equal to the highest frequency of a signal ...

  3. Broadband - Wikipedia

    en.wikipedia.org/wiki/Broadband

    The act of demodulating converts broadband video to baseband video. Fiber optic allows the signal to be transmitted farther without being repeated. Cable companies use a hybrid system using fiber to transmit the signal to neighborhoods and then changes the signal from light to radio frequency to be transmitted over coaxial cable to homes.

  4. Bandwidth (signal processing) - Wikipedia

    en.wikipedia.org/wiki/Bandwidth_(signal_processing)

    Baseband bandwidth is equal to the upper cutoff frequency of a low-pass filter or baseband signal, which includes a zero frequency. Bandwidth in hertz is a central concept in many fields, including electronics , information theory , digital communications , radio communications , signal processing , and spectroscopy and is one of the ...

  5. Data communication - Wikipedia

    en.wikipedia.org/wiki/Data_communication

    According to the most common definition of a digital signal, both baseband and passband signals representing bit-streams are considered as digital transmission, while an alternative definition only considers the baseband signal as digital, and passband transmission of digital data as a form of digital-to-analog conversion. [citation needed]

  6. Frequency-division multiplexing - Wikipedia

    en.wikipedia.org/wiki/Frequency-division...

    The modulator alters some aspect of the carrier signal, such as its amplitude, frequency, or phase, with the baseband signal, "piggybacking" the data onto the carrier. The result of modulating (mixing) the carrier with the baseband signal is to generate sub-frequencies near the carrier frequency, at the sum (f C + f B) and difference (f C − f ...

  7. ‘Broadband’ definition officially changed as internet speeds ...

    www.aol.com/news/broadband-definition-officially...

    The minimum speed required to call a connection broadband will rise from 25Mbps to 100Mbps. That was part of a vote by the Federal Communications Commission, which backed the change by 3 votes to 2.

  8. Frequency modulation - Wikipedia

    en.wikipedia.org/wiki/Frequency_modulation

    If the information to be transmitted (i.e., the baseband signal) is () and the sinusoidal carrier is () = ⁡ (), where f c is the carrier's base frequency, and A c is the carrier's amplitude, the modulator combines the carrier with the baseband data signal to get the transmitted signal: [4] [citation needed]

  9. What is broadband? - AOL Help

    help.aol.com/articles/what-is-broadband

    The term “broadband” refers to a high-speed internet connection that uses a satellite, digital subscriber line or cable connection for data transmission. A broadband connection is usually a lot faster than a dial-up connection and allows you to browse the web and download videos, music and games much more quickly.

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