Question
Download Solution PDFWhat is the bandwidth of the receiver ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The bandwidth of a receiver is determined by the bandwidth of its narrowest component in the signal chain. In a typical superheterodyne receiver, this is usually the bandwidth of the Intermediate Frequency (IF) amplifier or the Low Frequency (LF) amplifier.
Calculation:
Given:
Input frequency (f) = 100 MHz
Local Oscillator (L.O.) frequency = 90 MHz
Low Frequency (L.F.) Amplifier bandwidth = 10 MHz
Gain values (not relevant for bandwidth calculation)
Solution:
1. The receiver's bandwidth is not determined by the input frequency or local oscillator frequency, but by the bandwidth of its filtering stages.
2. The L.F. Amplifier has a specified bandwidth of 10 MHz, which typically sets the overall receiver bandwidth.
3. The other components (LNA gain, LO frequency) affect signal strength and frequency conversion but not the fundamental bandwidth limitation.
Final Answer:
The bandwidth of the receiver is 4) 10 MHz, as determined by the L.F. Amplifier's bandwidth specification.
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