Electronics and Communication Engineering - Radio Receivers - Discussion

Discussion :: Radio Receivers - Section 1 (Q.No.2)


In a superheterodyne receiver

[A]. the IF stage has better selectivity than RF stage
[B]. the RF stage has better selectivity than IF stage
[C]. the RF stage has same selectivity than IF stage
[D]. none of the above

Answer: Option A


No answer description available for this question.

Dvt said: (Aug 18, 2016)  
Why it is option A?

Bapi said: (Jan 21, 2017)  
IF stage has better selectivity due to 455khz added to received RF signal.

Abhishek Pant said: (Nov 29, 2017)  
The superheterodyne receiver changes the rf frequency into an easier to processlower IF- frequency. This IF- frequency will be amplified and demodulated to get a video signal

Syam Krishnan B said: (Mar 9, 2018)  
In superheterodyne Rxr, IF stage allows only 455 kHz freq (received freq +local oscillator freq. =IF freq). ie IF stage is more selective than Rf stage.

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