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What causes sideband frequency?
If you subtract from the carrier frequency the frequency of the tone that modulates it, then filter out the carrier frequency, then you have a lower sideband frequency. If you add to the carrier frequency, filter out the carrier, then you have an upper sideband frequency.
How Frequency Modulation Have Higher Bandwidth then AM?
Bandwidth is defined as difference between two frequencies.In AM only amplitude is modulated or changed to transmit the data at the given fixed frequency. In FM the frequency of the signal is changed to transmit the data. Since we will need a range of frequency to transmit the data using FM (say frequencies from f1 to f2), the bandwidth of FM signal will be higher than AM signal which can transmit at a fixed frequency.But.....The above answer does not address the issue of "strength of modulation", that is, modulation index.A.M. will always have a bandwidth of twice its highest modulating frequency regardless of the strength of modulation.For voice comms with about a 3 kHz maximum frequency, A.M. will demand (3+3) = 6 kHz of bandwidth.Because F.M. modulates the frequency swing of the transmitter, low modulation indexes with F.M. can give a bandwidth LESS than the maximum modulating frequency. Narrow-Band F.M. (NBFM) can have a bandwidth of *less than* 3 kHz, indeed it can have a bandwidth of only a few hundred hertz, in theory.In practice, very narrow NBFM suffers from worsening signal-to-noise ratios, and one of F.M.'s chief advantages over A.M. is the superior signal-to-noise of F.M. when it is allowed sufficient bandwidth.
Vitamin d modulates the metabolism of?
calcium
What is definition of the word modem?
Modem is a device which modulates and demodulates a signal.
What Key is Beethoven's Fur Elise?
The main key is A minor, but it modulates a bit.
What device that modulates outgoing signals and demodulates incoming DSL signals?
DSLAM
What is channels to be non-overlapping?
Broadcast media AND OTHER RF COMMUNICATION use electromagnetic waves to send information across distance. An AM radio can use a very narrow frequency to send the information, but FM communications, such as television, your FM radio receiver and most digital signals, use what is called "frequency modulation" to send a signal. In a frequency modulated signal, the base sigal will start at a single frequency. To send information, the signal changes (modulates) the frequency up and/or down from that base frequency. The FCC and other regulating agencies have reserved certain frequencies for specific commercial broadcast use only. A radio signal may not "overlap" or attempt to use the frequency or any part of the frequency that has been assigned to another commercial broadcaster.
Is a modem really a modem?
If it's modulates and demodulates a signal then yes, it's a modem.
What does a transmission modulator due on a 86 Chevy blazer?
Modulates pressure that controls shift points.
How an electronic transmitters work?
A transmitter takes in a signal and modulates a carrier wave to send that signal out. A mixer takes the signal and modifies it according to the type of transmission being done. AM means amplitude modulation. The signal determines the intensity of the transmitter signal. FM means frequency modulation. The transmitters frequency is changed by the incoming signal.There are several ways of sending a signal. Side band and other methods you can read about.
What is difference between modulator and demodulator?
Modulation is used when information is available in analog form that varies the frequency and/or amplitude of a lower frequency wave, depending on the information it carries. The role of modulation is to place this information onto a carrier frequency that can be transmitted more readily and with least loss of information. There are three fundamental types of modulation - frequency modulation, amplitude modulation and phase modulation. In each of these, a carrier frequency is modulated by a lower frequency, to form a modulated carrier wave. A modulator modulates the carrier frequency, while a demodulator detects the modulation on the carrier wave and recovers the original lower frequency waveform at the destination. For many years the modulated carrier wave was converted to a radio signal. Now it is often an electrical signal which is sent down a teleohone line; the information is usually a set of pulses going between computers. When computers are connected to each other in a two-way conversation, the MOdulator and DEModulator are combined into a single device called a MODEM.
What key is 'What I Did For Love' sung in for Glee's cover?
It starts in Ab (A flat) major but modulates to C major.
