Question
1. If IF is too high, poor selectivity and poor adjacent channel rejection could result
2. If IF is high, tracking difficulties increase
3. A very low IF makes selectivity too sharp
4. As IF is decreased, image frequency rejection becomes better
Which of the above are correct?
a.
1, 2, 3, 4
b.
1, 2, 3
c.
2, 3, 4
d.
1, 3, 4
Posted under Electronics and Communication Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. Consider the following statements as regards IF in radio receivers 1. If IF is too high, poor selectivity and poor adjacent channel rejection could result 2. If IF is high,...
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. Audio-signal modulates a 125 MHz carrier, causing a frequency deviation of 5 kHz. The bandwidth of the narrowband FM signal is __________ kHz.
View solution
Q. Assertion (A): Radar gave birth to microwave technology.
Reason (R): In radar systems very high frequencies give the most accurate results.
View solution
Q. A channel has a SNR of 7 and BW 4 kHz. Keeping the channel capacity (BPS) same, the BW is reduced to accommodate more channels. The SNR
View solution
Q. In amplitude modulation the rms value of radio frequency voltage after 40% modulation is 60 mV. If modulation is 80% the rms value after modulation will be about
View solution
Q. 1 GHz is equal to
View solution
Q. Consider the following statements
1. In a pulsed radar, the transmitted pulses are of high frequency
2. In a pulsed radar, the transmitted pulses are of high power
3. In a pulsed radar, the transmitted pulses are of brief duration
4. In a pulsed radar, the transmitted pulses are of square wave shape.
Of the above statements the correct statements are
View solution
Q. Probability density function of thermal noise is
View solution
Q. In a colour TV receiver AFT stands for
View solution
Q. The smallest change in sound intensity that can be detected by human ear is __________ dB.
View solution
Q. Low frequency boost can be easily compensated by
View solution
Q. An MTI compares a set of received echos with those received during the previous sweep.
View solution
Q. If e = 10 sin(10⁸ t + 3 sin 10⁴ t) then the deviation is
View solution
Q. When a complex signals is used to frequency modulate a carrier, the resulting sideband distribution is
View solution
Q. The output VR of the ratio detector is related with the output VF of similar Foster-Seeley discriminator as follows.
View solution
Q. In grid bias modulation system the power required for modulating amplifier
View solution
Q. In spread spectrum technique
View solution
Q. QAM stands for
View solution
Q. The bandwidth required for amplitude modulation is
View solution
Q. In a system using QASK and 4 bits to form a symbol, the required bandwidth is
View solution
Q. Each of the following statements regarding frequency modulation is true except
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!