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Q. Explain about Hybrid network?
Hybrid network (sometimes known as a hybrid coilor duplex coil) in a telephone set is a special balanced transformer used to convert a two-wire circuit(the local loop) in to a four wire circuit(the telephone set) and vice-versa, hence enabling full duplex operation over a two wirecircuit. Essentially, hybrid network separates transmitted signals from received signals. Outgoing voice signals are typically in 1-V to 2-V range, whereas incoming voice signals are typically half that value. Another function of hybrid network is to allow a small portion of transmit signal to be returned to the receiver in the form of a sidetone. In sufficient sidetone causes speaker to raise his voice, making telephone conversation seem unnatural. Too much side tone causes speaker to talk too softly, thus reducing the volume that listener receives.
write a project on electrical electronices
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