How does a IF signal splitter work in an electronic circuit?

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  • 1 decade ago
    Best Answer

    IF stands for intermediate frequency in a radio or high frequency receiver. The IF is obtained as the result of "mixing" or adding the incoming radio frequency signal with a fixed frequency oscillator generated by the radio receiver this is known as the local oscillator or (LO). The combination of the two signals creates what is known as a beat frequency which is much lower and easier for the radio detection circuit to demodulate. Demodulation is separating the transmitted information from the carrier wave which is at the radio frequency.

  • 1 decade ago

    IF splitter or demodulator is a simple diode/capacitor that rectify and filter the If signal into audio signal.

    Most common type of diode used is called "cat whisker" that work fast in very low voltage potential.

    In FM type of splitter, two diodes are used as full phase rectifier/filter combination.

    Source(s): Asimovii
  • 1 decade ago

    Band pass filter. Rejects all signals outside the IF channel boundaries.

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