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No, Pre-emphasis is done before modulation. We need it to do for improving the SNR ratio of the signals of higher frequencies. Actually this boosting of weaker higher frequencies of data signals. (Asked question is a sort of trap question usually asked in viva or interview.... ;) )
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In what stage modulation is done on high power amplitude modulation transmission?
In high power AM transmission, modulation is done at
What is pre-emphasis and de-emphasis in FM?
In FM, the effect of noise is more on higher frequencies when compared with low frequencies. Therefore in order to have high signal-to-noise ratio(low noise), the high frequencies are amplified at the transmitter side and for compensation deemphasis(decreasing the amplitude of those boosted frequencies ) is done at receiver.
When modulation frequency is doubled the modulation index is halved and the modulating voltage remains constant the modulation system is?
the modulation system is of FM
In which Analog to analog modulation methods does the peak amplitude?
Frequency modulation Phase modulation
How does quadrature amplitude modulation works?
QAM is a combination of phase modulation & amplitude modulation.
In what stage modulation is done on high power amplitude modulation transmission?
In high power AM transmission, modulation is done at
What is the main advantage of pre-emphasis?
a emphasis is a word
Need of pre-emphasis and de-emphasis circuits?
dynaco fm
Application of pre emphasis and de emphasis?
fm,audio digtal recording
What are the electronic communication?
its nothing but modulation and demodulation. modulation of the message is done in transmitter side and demodulation is done at receiver side and retrieving the original message.
What are the electronic communication process?
its nothing but modulation and demodulation. modulation of the message is done in transmitter side and demodulation is done at receiver side and retrieving the original message.
In what stage modulation is done in high power AM transmissions?
RF Power stage
What are the synonyms for accent?
Some synonyms for "accent" include pronunciation, intonation, inflection, and emphasis.
What is detection of AM?
AM is amplitude modulation. AM detection is the process of demodulation or recovering the information encoded in the signal through amplitude modulation. AM detection can be done through a simple diode detector which rectifies the AM signal.
What does AM and FM stand for in radios?
AM - Amplitude Modulation FM - Frequency Modulation
Pre-emphasis in FM systems involves?
Amplification of higher frequency component of modulating signal
Is carefully an adverb of manner or emphasis?
The adverb carefully is an adverb of manner (how something is done).Examples of adverbs of emphasis are:absolutelycertainlyclearlydefinitelynaturallyobviouslypositivelyreallyvery
