Electronics and Communication Engineering (ECE) Exam > Electronics and Communication Engineering (ECE) Questions > Consider the following: A TV receiver antenna...
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Consider the following:
- A TV receiver antenna should pick up the TV signal and develop maximum voltage from the available strength of signal
- It should reject unwanted signals
- It should not suffer from co-channel interference
- It should have a very narrowband
- a)1 and 2 only
- b)1, 2 and 3 only
- c)1, 2, 3, 4
- d)2, 3 only
Correct answer is option 'B'. Can you explain this answer?
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Consider the following: A TV receiver antenna should pick up the TV si...
The band should not be narrow.
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Consider the following: A TV receiver antenna should pick up the TV si...
Introduction:
The TV receiver antenna plays a crucial role in receiving TV signals and converting them into electrical signals that can be processed by the TV receiver. To ensure proper functionality and good performance, the antenna must fulfill certain requirements. In this question, we are given four statements and we need to identify the correct ones.
Explanation:
1. A TV receiver antenna should pick up the TV signal and develop maximum voltage from the available strength of the signal:
This statement is correct because the primary function of a TV receiver antenna is to receive the TV signal and convert it into an electrical signal with the maximum possible voltage. This high voltage signal ensures that the TV receiver can process the signal properly and produce a good quality picture and sound.
2. It should reject unwanted signals:
This statement is also correct because the TV receiver antenna should be designed in such a way that it can reject or minimize the reception of unwanted signals. Unwanted signals can come from various sources such as other TV stations, radio stations, or noise sources. By rejecting these unwanted signals, the antenna helps in improving the signal-to-noise ratio and minimizing interference.
3. It should not suffer from co-channel interference:
This statement is correct as well. Co-channel interference occurs when two or more TV stations transmit on the same channel or adjacent channels. In such cases, the TV receiver antenna should be able to minimize the interference caused by the signals from other stations. This can be achieved through proper antenna design and filtering techniques.
4. It should have a very narrowband:
This statement is incorrect. A TV receiver antenna should have a wideband response to cover the entire frequency range of TV signals. TV signals are transmitted over a wide range of frequencies, and the antenna should be able to receive all these frequencies without any significant loss or distortion. A narrowband antenna would restrict the reception to a limited frequency range and may not be able to receive all the TV channels effectively.
Conclusion:
Based on the explanation above, the correct statements are:
1. A TV receiver antenna should pick up the TV signal and develop maximum voltage from the available strength of the signal.
2. It should reject unwanted signals.
3. It should not suffer from co-channel interference.
Therefore, the correct answer is option 'B': 1, 2, and 3 only.
The TV receiver antenna plays a crucial role in receiving TV signals and converting them into electrical signals that can be processed by the TV receiver. To ensure proper functionality and good performance, the antenna must fulfill certain requirements. In this question, we are given four statements and we need to identify the correct ones.
Explanation:
1. A TV receiver antenna should pick up the TV signal and develop maximum voltage from the available strength of the signal:
This statement is correct because the primary function of a TV receiver antenna is to receive the TV signal and convert it into an electrical signal with the maximum possible voltage. This high voltage signal ensures that the TV receiver can process the signal properly and produce a good quality picture and sound.
2. It should reject unwanted signals:
This statement is also correct because the TV receiver antenna should be designed in such a way that it can reject or minimize the reception of unwanted signals. Unwanted signals can come from various sources such as other TV stations, radio stations, or noise sources. By rejecting these unwanted signals, the antenna helps in improving the signal-to-noise ratio and minimizing interference.
3. It should not suffer from co-channel interference:
This statement is correct as well. Co-channel interference occurs when two or more TV stations transmit on the same channel or adjacent channels. In such cases, the TV receiver antenna should be able to minimize the interference caused by the signals from other stations. This can be achieved through proper antenna design and filtering techniques.
4. It should have a very narrowband:
This statement is incorrect. A TV receiver antenna should have a wideband response to cover the entire frequency range of TV signals. TV signals are transmitted over a wide range of frequencies, and the antenna should be able to receive all these frequencies without any significant loss or distortion. A narrowband antenna would restrict the reception to a limited frequency range and may not be able to receive all the TV channels effectively.
Conclusion:
Based on the explanation above, the correct statements are:
1. A TV receiver antenna should pick up the TV signal and develop maximum voltage from the available strength of the signal.
2. It should reject unwanted signals.
3. It should not suffer from co-channel interference.
Therefore, the correct answer is option 'B': 1, 2, and 3 only.
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