One-to-many information delivery scheme. It is a one-way communications method. In the context of traditional content delivery such as by over-the-air (OTA) signals such as radio or television, broadcasts emanate from central delivery locations to receivers which “tune” to the relevant channel (e.g. wavelength of electro-magnetic signal). In the context
QAM (Quadrature Amplitude Modulation) is a digital encoding scheme used to transmit data over Radio Frequency (RF). For example, QAM is used for Digital TV (DTV) video transmission (both live and VOD) over last mile (e.g. Fiber/Coaxial) from a CMTS (which has a QAM subsystem sending out data onto the
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