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An AM signal having a carrier frequency of 460 kHz is to be mixed with a local oscillator signal at a frequency of 1135 kHz. What does the output of the IF amplifier consist of

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nuhulawal20

Answer:

the output of the IF amplifier consist of 675 kHz

Explanation:

Given the data in the question;

AM signal carrier frequency [tex]_{RF[/tex]  = 460 kHz

Local oscillator frequency[tex]_{lo[/tex] = 1135 kHz

Now, The output of the IF amplifier consists of difference of local oscillator frequency & AM carrier signal frequency;

FREQUECY[tex]_{IF[/tex] = FREQUECY[tex]_{lo[/tex] - FREQUECY[tex]_{RF[/tex]

so we substitute in our given values

FREQUECY[tex]_{IF[/tex] = 1135 kHz - 460 kHz

FREQUECY[tex]_{IF[/tex] = 675 kHz

Therefore, the output of the IF amplifier consist of 675 kHz

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