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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.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoBW=0.35/tr
where tr is the risetime of the signal.
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What is the difference between am raido and FM radio?
A: AM radio is an Amplitude Modulation transmission . Meaning it has fix frequency but it is modulated by the signal. FM Frequency Modulation the frequency is modulated by the signal
How do you send a digital radio signal to a FM radio?
Frequency Modulation must have a carrier whereby the frequency can be modulated by the signal
Why is amplitude of demodulated FM signal much less than modulated signal?
because demodulated FM is an audio signal, which the frequency is much smaller that is why it can be transmitted alone. It need carrier which has large frequency. Modulated signal is an audio signal + carrier that is why the amplitude is higher.
What does the number of a FM radio station mean?
The numbers in an FM radio station represent the frequency the station transmits the signal on. The frequency range for FM band radio stations is from 87.5 MHz to 108.0 MHz. These radio frequencies are considered VHF or Very High Frequency. The difference between AM and FM radio is that in AM radio the Amplitude is Modulated, or changed to send the signal, whereas with FM, the Frequency is Modulated or altered to send the signal.
The lowest frequency of a signal is 10 kHz the highest frequency if 1 MHz what is the bandwidth?
BW = (1 MHz - 10 KHz) = (1,000 KHz - 10 KHz) = 990 KHz
What is bandwidth required for AM signal?
With full double sideband AM the bandwidth of the modulated signal is twice that of the baseband information signal. With suppressed carrier single sideband AM the bandwidth of the modulated signal is identical to that of the baseband information signal. With vestigial sideband AM the bandwidth of the modulated signal is somewhere between the above two cases, depending on how much of the vestigial sideband is included.
When a carrier is phase modulated with an integrated modulating signal the resultant is?
It gives frequency modulated signal
Is modulated voice signal a baseband or broadband?
Neither.baseband refers to the original voice signal itselfbroadband refers to a form of wide bandwidth data transmission (e.g. internet traffic)the modulated voice signal consists of a carrier frequency and two sidebands, the bandwidth of the sidebands varies depending on the form of modulation used as well as the bandwidth of the original baseband signal, to reduce transmission power it is possible to eliminate the carrier frequency and to reduce overall bandwidth one of the sidebands may be partially suppressed or eliminated completely (but one sideband must always be fully retained)
What is relationship between signal spectrum and bandwidth?
Signal Bandwidth is the Bandwidth of particular frequency at which signal is transmitted and Bandwidth of spectrum which can able two show number of signal between Intrest of frequency.
What is the difference between am raido and FM radio?
A: AM radio is an Amplitude Modulation transmission . Meaning it has fix frequency but it is modulated by the signal. FM Frequency Modulation the frequency is modulated by the signal
89kHz sinusoidal signal is modulated using an amplitude modulator and a frequency modulator calculate the bandwdith requirement for both modulation schemes?
You can't do this unless you know more detail on the frequency modulator, like its modulation index, for example or the frequency deviation. For the amplitude modulator, it is easy. Bandwidth is twice the signal frequency so in this case the bandwidth is 178kHz for AM.
The amount of frequency deviation for a frequency-modulated signal is determined by the?
The signals frequency directly.
Webex bandwidth requirements?
Transmission bandwidth depends on modulating signal frequency and carrier frequency
How do you send a digital radio signal to a FM radio?
Frequency Modulation must have a carrier whereby the frequency can be modulated by the signal
Why is amplitude of demodulated FM signal much less than modulated signal?
because demodulated FM is an audio signal, which the frequency is much smaller that is why it can be transmitted alone. It need carrier which has large frequency. Modulated signal is an audio signal + carrier that is why the amplitude is higher.
What is the bandwidth of am?
its 2*frequency of information signal
Does the sound transmitter at a television employ frequency or amplitude modulation?
The sound signal of a standard NTSC television signal is frequency modulated.
