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What else can I help you with?
Webex bandwidth requirements?
Transmission bandwidth depends on modulating signal frequency and carrier frequency
What determines the bandwidth of an AM signal?
The bandwidth of an Amplitude Modulation (AM) signal is primarily determined by the frequency range of the modulating signal. Specifically, the bandwidth is typically twice the highest frequency present in the modulating signal, as AM modulates the carrier frequency by adding and subtracting the modulating frequencies. For example, if the modulating signal has a maximum frequency of (f_m), the AM signal will have a bandwidth of (2f_m). Additionally, practical factors such as filtering and transmission characteristics can influence the effective bandwidth.
What is the maximum modulating frequency in broadcast FM?
75khz
How many AM broadcast station can be accommodated in a 6 MHz bandwidth if each station transmits an audio signal having maximum frequency of 5 KHz?
To determine how many AM broadcast stations can be accommodated in a 6 MHz bandwidth, you first need to consider the bandwidth required for each station. An AM station typically requires about 10 kHz of bandwidth to transmit a 5 kHz audio signal. Therefore, in a 6 MHz (or 6000 kHz) bandwidth, you can fit approximately 6000 kHz / 10 kHz = 600 stations.
How is the bandwidth allocated in case of FM?
In Frequency Modulation (FM), bandwidth is allocated based on the modulation index, which is determined by the frequency deviation of the carrier signal and the frequency of the modulating signal. According to Carson's Rule, the total FM bandwidth is approximately twice the sum of the maximum frequency deviation and the maximum frequency of the modulating signal. This means that FM signals can occupy a wider bandwidth compared to Amplitude Modulation (AM), allowing for better noise immunity and audio quality. Typically, for standard FM broadcasting, the bandwidth is around 200 kHz.
In frequency modulation what happens to the bandwidth when you increase the modulating frequency?
Bandwidth increases as a function of both modulating frequencyand deviation. As deviation increases, pairs of sidebands are generated, each equal to fc+m and fc-m, fc+2m, fc-2m etc. where fc = the carrier frequency and m = the modulating frequency. Increasing modulation (frequency deviation) will change the level of each of the sideband pairs - and the carrier, which at times falls to zero.
Define the bandwidth of a frequency modulated signal?
I believe the bandwidth of ANY signal is defined as the range of frequencies that encompasses 99% of the signal's power. For an AM signal at anything less than 100% modulation, it's 2 x the highest modulating frequency. FM signals aren't that simple to characterize. "Cramer's Rule" says that the bandwidth is 2 x (peak deviation + highest modulating frequency), but as the 'modulation index' increases, that rule becomes a poorer approximation.
How do you calculate frequency range of double side band modulated signal?
Upper sideband = Carrier frequency + modulating frequencyLower sideband = Carrier frequency - modulating frequency
Why you go for modulation?
modulating signal is the low frequency signal .so we cant transmit for a long distance.so we go for modulating the signal either by modulating the amplitude or frequency or phase of the signal.
What is narrow band modulation frequency?
When the frequency sensitivity of the modulating signal is small,the bandwidth of the FM is narrow. The narrowband FM has one carrier term two sideband terms.The modulation index is also small compared to one radian.
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.
If modulating frequency doubles then Bandwdth of frequency modulation becomes?
increases
