Which device is used in TV receivers for tuning the receiver to the incoming signal?(a) Varacter diode(b) High pass filter(c) Low pass filter(d) Bandpass filterThis question was addressed to me at a job interview.My doubt is from AGC in portion Receivers & Transducers of Analog Communications

Which device is used in TV receivers for tuning the receiver to the in

1.	Which device is used in TV receivers for tuning the receiver to the incoming signal?(a) Varacter diode(b) High pass filter(c) Low pass filter(d) Bandpass filterThis question was addressed to me at a job interview.My doubt is from AGC in portion Receivers & Transducers of Analog Communications
Answer» RIGHT OPTION is (a) Varacter diode For explanation I would say: Varacter diodes have variable capacitance as a function of variable input voltage. It WORKS in REVERSE bias. It is generally used for tuning the receivers according to an incoming signal. It is also used in RF filters for tuning purposes such as tuning of TV sets.

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Which device is used in TV receivers for tuning the receiver to the incoming signal?(a) Varacter diode(b) High pass filter(c) Low pass filter(d) Bandpass filterThis question was addressed to me at a job interview.My doubt is from AGC in portion Receivers & Transducers of Analog Communications

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