Pressing a key on telephone set generates two frequencies. The basis for selection of these frequencies is-A-the harmonics of one frequency should not be mistaken for the other frequencyB-the audio input to the handset transmitter should not be mistaken for a key pressingC-both (a) and (b)D-neither (a) nor (b)-C-both (a) and (b)

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The correct option is  C both (a) and (b) No answer description is available.

Communication Systems

Q1: Pressing a key on telephone set generates two frequencies. The basis for selection of these frequencies is

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Communication Systems

Q1: Pressing a key on telephone set generates two frequencies. The basis for selection of these frequencies is

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