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Spectrum is a trade name of Charter Communications, used to market consumer and commercial cable television, internet, telephone, and wireless services provided by the company. The brand was first introduced in 2014; prior to that, these services were marketed primarily under the Charter name.

Charter Communications, Inc., is an American telecommunications and mass media company with services branded as Spectrum.With over 26 million customers in 41 states, it is the second-largest cable operator in the United States by subscribers, just behind Comcast, and third-largest pay TV operator behind Comcast and AT&T.

In acoustics, a spectrogram is a visual representation of the frequency spectrum of sound as a function of time or another variable. A source of sound can have many different frequencies mixed. A musical tone 's timbre is characterized by its harmonic spectrum. Sound in our environment that we refer to as noise includes many different frequencies.

the 2g spectrum case is an ongoing alleged scam case in which politicians and private officials of the united progressive alliance coalition government in india are accused of selling or allotting 122 2g spectrum licenses on conditions that provided benefit to specific telecom operators, a. raja (who was the telecom minister in 2007) is being …