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Foster Seeley discriminator uses a
- a)Single tuned circuit
- b)Double tuned circuit with primary and secondary tuned to the different frequency
- c)Double tuned circuit with primary and secondary tuned to the same frequency
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
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Foster Seeley discriminator uses aa)Single tuned circuitb)Double tuned...
Foster Seeley discriminator:
- Discriminator circuits can generate electrical output directly proportional to the frequency deviation from the unmodulated RF carrier frequency.
- The simplest circuit could be a balanced slope detector.
- It makes use of two resonant circuits; one off-tuned to one side of unmodulated RF carrier frequency and the other off-tuned to the other side of it.
- Another class of FM detectors known as Quadrature detectors uses a combination of two Quadrature signals.
- The Most commonly used FM detectors namely the foster-Seeley FM discriminator and the ratio detector operates on the principle of quadrature.
Foster Seeley discriminator is used in the demodulation of FM signal and it uses a double-tuned circuit with primary and secondary tuned to the same frequency.
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Foster Seeley discriminator uses aa)Single tuned circuitb)Double tuned...
Double tuned circuit with primary and secondary tuned to the same frequency
The Foster Seeley discriminator uses a double tuned circuit with primary and secondary tuned to the same frequency. This configuration allows the circuit to effectively detect and demodulate frequency modulated (FM) signals.
Operation
- The input signal is applied to the primary of the transformer, which is tuned to the carrier frequency of the FM signal.
- The secondary winding of the transformer is also tuned to the same carrier frequency.
- When the FM signal is present, the output of the secondary winding will have two components, one at the carrier frequency and another at the frequency corresponding to the modulation.
- These two components are then rectified and passed through a low-pass filter to extract the baseband audio signal.
Advantages
- The double tuned circuit in the Foster Seeley discriminator provides good selectivity and sensitivity for demodulating FM signals.
- It offers a simple and effective way to recover the original audio signal from an FM carrier wave.
Conclusion
In conclusion, the Foster Seeley discriminator uses a double tuned circuit with primary and secondary tuned to the same frequency to effectively demodulate FM signals. This configuration provides good selectivity and sensitivity, making it a popular choice for FM demodulation applications.
The Foster Seeley discriminator uses a double tuned circuit with primary and secondary tuned to the same frequency. This configuration allows the circuit to effectively detect and demodulate frequency modulated (FM) signals.
Operation
- The input signal is applied to the primary of the transformer, which is tuned to the carrier frequency of the FM signal.
- The secondary winding of the transformer is also tuned to the same carrier frequency.
- When the FM signal is present, the output of the secondary winding will have two components, one at the carrier frequency and another at the frequency corresponding to the modulation.
- These two components are then rectified and passed through a low-pass filter to extract the baseband audio signal.
Advantages
- The double tuned circuit in the Foster Seeley discriminator provides good selectivity and sensitivity for demodulating FM signals.
- It offers a simple and effective way to recover the original audio signal from an FM carrier wave.
Conclusion
In conclusion, the Foster Seeley discriminator uses a double tuned circuit with primary and secondary tuned to the same frequency to effectively demodulate FM signals. This configuration provides good selectivity and sensitivity, making it a popular choice for FM demodulation applications.
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Foster Seeley discriminator uses aa)Single tuned circuitb)Double tuned circuit with primary and secondary tuned to the different frequencyc)Double tuned circuit with primary and secondary tuned to the same frequencyd)None of theseCorrect answer is option 'C'. Can you explain this answer?
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