Question
Download Solution PDFIn a broadcast superheterodyne receiver, having no RF amplifier, the IF = 455 kHz. What is the image frequency if the receiver is tuned to 1000 kHz?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Image frequency: The signal which causes interference is called ‘image frequency’
Image frequency and intermediate frequency is related as follows:
fsi = fs + 2 IF
fs: carrier frequency of the tuned station
fsi: image frequency
IF: Intermediate frequency
Calculation:
Given intermediate frequency (I.F) = 455 kHz
Tuned signal frequency is fs = 1000 kHz
Image frequency is
fsi = 1000 kHz + 2 × 455 kHz
fsi = 1910 kHz
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