Electronics and Communication Engineering - Radio Receivers - Discussion

Discussion :: Radio Receivers - Section 1 (Q.No.28)

28. 

In a superheterodyne receiver with an IF of 450 kHz is tuned to a signal at 1200 kHz. The image frequency is

[A]. 750 kHz
[B]. 990 kHz
[C]. 1650 kHz
[D]. 2100 kHz

Answer: Option D

Explanation:

No answer description available for this question.

Ashish said: (Jun 8, 2014)  
Fsi = Fs+2Fi.
Here Fs = 1200 KHz and Fi= 450 KHz.

Fsi = 1200+2x450.
= 1200+900.
= 2100 KHz.

Ravikrishna Podila said: (Dec 27, 2016)  
Please tell me any conditions for taking the positive sign or negative sign.

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