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Electronics and Communication Engineering - Radio Receivers

Exercise : Radio Receivers - Section 1
1.
The noise generated by a resistor depends upon
its resistance value
its operating temperature
both its resistance value and operating temperature
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
In a superheterodyne receiver
the IF stage has better selectivity than RF stage
the RF stage has better selectivity than IF stage
the RF stage has same selectivity than IF stage
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The function of an AM detector circuit is to
rectify the input signal
discard the carrier
provide audio signal
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Which of the following should be used in order to prevent overloading or the last IF amplifier in a receiver?
Variable selectivity
Variable sensitivity
Double conversion
Squelch
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Most popular IF for receivers tuning to 540 to 1650 kHz is
433 kHz
455 kHz
545 kHz
555 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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