0
mf=(K*Am)/fm
where K: is a proprtionality coefficient
Am: is amplitude of the message
fm=frequency of modulation
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∙ 12y ago
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What is the range of modulation index in am?
The modulation index in AM can range from zero to any number. But if distortion is to be avoided, then the index must not exceed 100%.
What is percentage power saving if AM transmitter with modulation index m equals 0.5 is replaced by SSBSC transmitter with same modulation index?
Pt=Pc+2Psf, m=0.5 ,Psf=0.0625, saving in power is 100-6.25 % = 94.75%
Where is amplitude modulation used?
we have two types of signals namely the message signal and the carrier signal. so if the amplitude of the carrier is varied in accordance with the instantaneous value of the message signal then it is known as the amplitude modulation.if we want to transmit our message signal to long distances we need to do modulation and hence amplitude modulation is done. by amplitude modulation we generate side bands which consists of the part of the message which signal which is demodulated at the receiver to get back the original message signal we are using this amplitude modulation in radio communication. It will work in the traffic also with out disturbances but frequency modulation didn't work without disturbances.
How does the index of refraction affect frequency?
By the amount of time:)
What is the formula for the index of refraction?
Umm... E=MC²
What is Modulation index in Frequency modulation?
Modulation Index is the ratio of the maximum deviation frequency to the frequency of modulation. In other words it is the ratio of the spread in frequency spectrum to the frequency that was used to modulate the carrier. For FM, modulation index is given by the formula mf= df/f where, mf=modulation index for FM df=difference in carrier frequency f=frequency of the signal
What is the relationship between frequency modulation and the frequency carrier to the modulation index in the AM modulation?
fc>2fm
When modulation frequency is double the modulation index is halF and the modulating voltage remains constant the modulation system is?
frequency modulation..
Define modulation and modulation index?
a measure of the degree of frequency modulation expressed numerically for a pure tone modulation as the ratio of the frequency deviation to the frequency of the modulating signal.
What is the formula to find the modulating index?
Deviation/Frequency of Modulation...times penis...
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
What is the deviation ratio for frequency modulation?
Deviation ratio: In a frequency modulation system, the ratio of the maximum frequency deviation of the carrier to the maximum modulating frequency of the system under specified conditions
What is modulation index for frequency modulation?
It varies depending on how strong you want the signal to come through on the receiving end.
What is the unit for modulation index?
Modulation index is also called as Modulation depth. The modulation index of a modulation scheme describes by how much the modulated variable of the carrier signal varies around its unmodulated level.
How the modulation index varies for FM?
how modulation index varies for FM
How modulation index varies for FM?
how modulation index varies for FM
How do you calculate frequency deviation?
here is the formula modulation index=peak freq deviation/operating freq. frm this we can calculate freq dev
