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What is over-modulating condition in term of amplitude modulation?
Wiki User
∙ 15y ago
When your audio modulating signal is larger than your RF carrier amplitude the peak of the modulated carrier will become flat and a distorted audio signal with flattened peaks will be send out from the detector on the receiver side
Wiki User
∙ 15y ago
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What is frequency sensitivity?
the amount of frequency change in the carrier frequency per unit amplitude change in the message signal is the frequency sensitivity this term comes in the frequency moulation
Why is it necessary to modulate the picture and sound signals before transmission?
To avoiding the noise signal effect.Because the modulation is a technic which providing a high characteristic to transmitting the signal on long or short distance.Because the modulated signal received as high bandwidth,high performance of received signal and the modulation Technic is provide a less hight of antenna in wireless transmission which is expressed in the term :(hight of antenna=λ/4).
What is digital and analog?
we often confuse our-self with continuous time and analog signals. An analog signal is a signal which can take any amplitude in continuous range that is signal amplitude can take infinite values on the other hand a digital signal is one whose amplitude can take only finite numbers of values THE TERM CONTINUOUS SIGNAL AND DISCRETE SIGNAL CLASSIFY THE SIGNALS ALONG THE TIME (i.e. horizontal axis) where as THE TERM ANALOG AND DIGITAL SIGNAL CLASSIFY THE SIGNAL ALONG THE AMPLITUDE (i.e vertical axis)
Line read 20 amp different per phase to load?
The electrical term for this condition is called an unbalanced load.
What does the term GFCI receptacle stands for?
The term GFCI stands for Ground Fault Circuit Interrupter.
What is mean by the term amplitude modulation?
The term amplitude modulation, or also known as AM, is a method of impressing data onto an alternating current. This is most commonly used for transmitting information via a radio carrier wave.
What is the meaning of FM in FM Radio?
FM means frequency modulation AM means amplitude modulation
What does the AM in AM Radio stand for?
Amplitude Modulation (AM) and Frequency Modulation (FM) AM tuning changes the amplification size of the waves being received, FM tuning controls the frequency of the waves being received. As commercial radio rose from it's early form, the AM 'band' stood for years as the only type of radio available. As technology improved, engineers discovered that they could modulate 2 channels of higher quality sound inside of one carrier frequency. The Federal Communications Commission designated from 87 MHz to 108 MHz for the new FM format. And, with this, FM radio was born.
What does the term QAM refer to?
The term "QAM" refers to many different things. Some things "QAM" might refer to include "Quality Assurance Manual," "Quadrature Amplitude Modulation," "Queensland Air Museum" and "Quality Assurance Monitor."
Which of the following modulation is non linear?
frequency modulation is non linear due to cross over term.
Explain the term modulation. how does it help in data communication?
Modulation is the addition of information to an electronic or optical signal carrier. The modulation can be applied by turning the signal on and off.
What is maximum displacement of the wave from equilibrium called?
The term for maximum displacement is the amplitude of the wave.
What is another word for Musical vibration?
Tremolo is the generic term in musical notation. A trill can be a short tremolo Sometimes this effect is called vibrato, e.g in singing. On electric organs it is sometimes called "Lesley effect" On a guitar tremolo can be made with a "whammy bar". Arpeggio is similar to tremolo on certain instruments. The vibration can either be a frequency modulation or an amplitude modulation (or a combination).
What type of transmission is indicated by the term NTSC?
NTSC was the standard used in the US (and some other countries) for transmitting analog color television signals in a backward compatible manner with the original US black and white television signals (developed in 1939 by RCA). It has been superseded by the ATSC digital television standard.It uses the following systems of modulation:vestigial lower sideband amplitude modulation of main carrier with the black and white video signalfrequency modulation of a 4.5MHz subcarrier with the audio signalphase modulation of a 3.58MHz subcarrier with the color signal
What is the special word for the height of a wave?
Amplitude is the usual term, this may be peak too though or peak to mean level.
What is the french abbreviation FM?
FM as is used in French, actually means Frequency Modulation. The French term is modulation de fréquence, but the abbreviation is still FM.
What is the science term for high or low waves from the rest called?
Amplitude
