Transmission Impairments-Data Communication-Lecture Notes|Already Graded A+
Can we say whether a signal is periodic or non periodic by just looking at its
frequency domain plot? How? - ansIf a signal is periodic, we can see the signal was
consistent or same size and shape along the signal. For a signal nonperiodic , we can see
the signal was not consistent, and have difference size and shape.
Distinguish between a low-pass channel and a band-pass channel. - anslow-pass channel is
having bandwidth between 0 and infinity(f). The lowest supported frequency of a low pass
channel is 0. Band- pass channel is having a bandwidth between f1 and f2, this means, the
least frequency supported by a band pass channel is not zero.
Distinguish between baseband transmission and broadband transmission. - ansbaseband
transmission is sending a digital signal over a channel without changing the digital signal to
analog.
broadband is changing the digital signal to analog for transmission
How can a composite signal be decomposed into its individual frequencies? - ansby
frequency domains
Is the frequency domain plot of a voice signal discrete or continuous? - ansFrequency
domain plot of a voice signal is continuous because voice is non periodic signal.
Is the frequency domain plot of an alarm system discrete or continuous? - ansThe
frequency domain plot of an alarm signal is discrete
Name three types of transmission impairment - ansAttenuation, Distortion, Noise
We modulate several voice signals and send them through the air. Is this
baseband or broadband transmission? - ansBaseband transmission
We send a digital signal from one station on a LAN to another station. Is
this baseband or broadband transmission? - ansBaseband transmission
We send a voice signal from a microphone to a recorder. Is this baseband
or broadband transmission? - ansBroadband transmission
What does the amplitude of a signal measure? What does the frequency of a
signal measure? What does the phase of a signal measure? - ansAmplitude is value of signal
at any point on the wave on a time domain plot graph.
Frequency is rate of change with respect to time.
Phase is described the position of the waveform relative to time zero.
What does the Nyquist theorem have to do with communications? - ansit is a theoretical
formula that calculates the data rate for a noiseless channel.
For a noiseless channel, the Nyquist bit rate formula defines the theoretical
maximum bit rate
What does the Shannon capacity have to do with communications? - ansa formula, to
determine the theoretical highest data rate for a noisy channel.
What is the relationship between period and frequency? - ansPeriod is the inverse of
frequency, and frequency
is the inverse of period,
,Transmission Impairments-Data Communication-Lecture Notes|Already Graded A+
Why do optical signals used in fiber optic cables have a very short wave length? -
ansOptical signals have very high frequencies. A high frequency means a short wave
length because the wave length is inversely proportional to the frequency (λ = v/f),
where v is the propagation speed in the media.
Can we say whether a signal is periodic or non periodic by just looking at its
frequency domain plot? How? - ansIf a signal is periodic, we can see the signal was
consistent or same size and shape along the signal. For a signal nonperiodic , we can see
the signal was not consistent, and have difference size and shape.
Distinguish between a low-pass channel and a band-pass channel. - anslow-pass channel is
having bandwidth between 0 and infinity(f). The lowest supported frequency of a low pass
channel is 0. Band- pass channel is having a bandwidth between f1 and f2, this means, the
least frequency supported by a band pass channel is not zero.
Distinguish between baseband transmission and broadband transmission. - ansbaseband
transmission is sending a digital signal over a channel without changing the digital signal to
analog.
broadband is changing the digital signal to analog for transmission
How can a composite signal be decomposed into its individual frequencies? - ansby
frequency domains
Is the frequency domain plot of a voice signal discrete or continuous? - ansFrequency
domain plot of a voice signal is continuous because voice is non periodic signal.
Is the frequency domain plot of an alarm system discrete or continuous? - ansThe
frequency domain plot of an alarm signal is discrete
Name three types of transmission impairment - ansAttenuation, Distortion, Noise
We modulate several voice signals and send them through the air. Is this
baseband or broadband transmission? - ansBaseband transmission
We send a digital signal from one station on a LAN to another station. Is
this baseband or broadband transmission? - ansBaseband transmission
We send a voice signal from a microphone to a recorder. Is this baseband
or broadband transmission? - ansBroadband transmission
What does the amplitude of a signal measure? What does the frequency of a
signal measure? What does the phase of a signal measure? - ansAmplitude is value of signal
at any point on the wave on a time domain plot graph.
Frequency is rate of change with respect to time.
Phase is described the position of the waveform relative to time zero.
What does the Nyquist theorem have to do with communications? - ansit is a theoretical
formula that calculates the data rate for a noiseless channel.
For a noiseless channel, the Nyquist bit rate formula defines the theoretical
maximum bit rate
What does the Shannon capacity have to do with communications? - ansa formula, to
determine the theoretical highest data rate for a noisy channel.
,Transmission Impairments-Data Communication-Lecture Notes|Already Graded A+
What is the relationship between period and frequency? - ansPeriod is the inverse of
frequency, and frequency
is the inverse of period,
Why do optical signals used in fiber optic cables have a very short wave length? -
ansOptical signals have very high frequencies. A high frequency means a short wave
length because the wave length is inversely proportional to the frequency (λ = v/f),
where v is the propagation speed in the media.
Can we say whether a signal is periodic or non periodic by just looking at its
frequency domain plot? How? - ansIf a signal is periodic, we can see the signal was
consistent or same size and shape along the signal. For a signal nonperiodic , we can see
the signal was not consistent, and have difference size and shape.
Distinguish between a low-pass channel and a band-pass channel. - anslow-pass channel is
having bandwidth between 0 and infinity(f). The lowest supported frequency of a low pass
channel is 0. Band- pass channel is having a bandwidth between f1 and f2, this means, the
least frequency supported by a band pass channel is not zero.
Distinguish between baseband transmission and broadband transmission. - ansbaseband
transmission is sending a digital signal over a channel without changing the digital signal to
analog.
broadband is changing the digital signal to analog for transmission
How can a composite signal be decomposed into its individual frequencies? - ansby
frequency domains
Is the frequency domain plot of a voice signal discrete or continuous? - ansFrequency
domain plot of a voice signal is continuous because voice is non periodic signal.
Is the frequency domain plot of an alarm system discrete or continuous? - ansThe
frequency domain plot of an alarm signal is discrete
Name three types of transmission impairment - ansAttenuation, Distortion, Noise
We modulate several voice signals and send them through the air. Is this
baseband or broadband transmission? - ansBaseband transmission
We send a digital signal from one station on a LAN to another station. Is
this baseband or broadband transmission? - ansBaseband transmission
We send a voice signal from a microphone to a recorder. Is this baseband
or broadband transmission? - ansBroadband transmission
What does the amplitude of a signal measure? What does the frequency of a
signal measure? What does the phase of a signal measure? - ansAmplitude is value of signal
at any point on the wave on a time domain plot graph.
Frequency is rate of change with respect to time.
Phase is described the position of the waveform relative to time zero.
What does the Nyquist theorem have to do with communications? - ansit is a theoretical
formula that calculates the data rate for a noiseless channel.
For a noiseless channel, the Nyquist bit rate formula defines the theoretical
maximum bit rate
, Transmission Impairments-Data Communication-Lecture Notes|Already Graded A+
What does the Shannon capacity have to do with communications? - ansa formula, to
determine the theoretical highest data rate for a noisy channel.
What is the relationship between period and frequency? - ansPeriod is the inverse of
frequency, and frequency
is the inverse of period,
Why do optical signals used in fiber optic cables have a very short wave length? -
ansOptical signals have very high frequencies. A high frequency means a short wave
length because the wave length is inversely proportional to the frequency (λ = v/f),
where v is the propagation speed in the media.
Can we say whether a signal is periodic or non periodic by just looking at its
frequency domain plot? How? - ansIf a signal is periodic, we can see the signal was
consistent or same size and shape along the signal. For a signal nonperiodic , we can see
the signal was not consistent, and have difference size and shape.
Distinguish between a low-pass channel and a band-pass channel. - anslow-pass channel is
having bandwidth between 0 and infinity(f). The lowest supported frequency of a low pass
channel is 0. Band- pass channel is having a bandwidth between f1 and f2, this means, the
least frequency supported by a band pass channel is not zero.
Distinguish between baseband transmission and broadband transmission. - ansbaseband
transmission is sending a digital signal over a channel without changing the digital signal to
analog.
broadband is changing the digital signal to analog for transmission
How can a composite signal be decomposed into its individual frequencies? - ansby
frequency domains
Is the frequency domain plot of a voice signal discrete or continuous? - ansFrequency
domain plot of a voice signal is continuous because voice is non periodic signal.
Is the frequency domain plot of an alarm system discrete or continuous? - ansThe
frequency domain plot of an alarm signal is discrete
Name three types of transmission impairment - ansAttenuation, Distortion, Noise
We modulate several voice signals and send them through the air. Is this
baseband or broadband transmission? - ansBaseband transmission
We send a digital signal from one station on a LAN to another station. Is
this baseband or broadband transmission? - ansBaseband transmission
We send a voice signal from a microphone to a recorder. Is this baseband
or broadband transmission? - ansBroadband transmission
What does the amplitude of a signal measure? What does the frequency of a
signal measure? What does the phase of a signal measure? - ansAmplitude is value of signal
at any point on the wave on a time domain plot graph.
Frequency is rate of change with respect to time.
Phase is described the position of the waveform relative to time zero.
What does the Nyquist theorem have to do with communications? - ansit is a theoretical
formula that calculates the data rate for a noiseless channel.
For a noiseless channel, the Nyquist bit rate formula defines the theoretical
maximum bit rate
What does the Shannon capacity have to do with communications? - ansa formula, to
determine the theoretical highest data rate for a noisy channel.
What is the relationship between period and frequency? - ansPeriod is the inverse of
frequency, and frequency
is the inverse of period,
,Transmission Impairments-Data Communication-Lecture Notes|Already Graded A+
Why do optical signals used in fiber optic cables have a very short wave length? -
ansOptical signals have very high frequencies. A high frequency means a short wave
length because the wave length is inversely proportional to the frequency (λ = v/f),
where v is the propagation speed in the media.
Can we say whether a signal is periodic or non periodic by just looking at its
frequency domain plot? How? - ansIf a signal is periodic, we can see the signal was
consistent or same size and shape along the signal. For a signal nonperiodic , we can see
the signal was not consistent, and have difference size and shape.
Distinguish between a low-pass channel and a band-pass channel. - anslow-pass channel is
having bandwidth between 0 and infinity(f). The lowest supported frequency of a low pass
channel is 0. Band- pass channel is having a bandwidth between f1 and f2, this means, the
least frequency supported by a band pass channel is not zero.
Distinguish between baseband transmission and broadband transmission. - ansbaseband
transmission is sending a digital signal over a channel without changing the digital signal to
analog.
broadband is changing the digital signal to analog for transmission
How can a composite signal be decomposed into its individual frequencies? - ansby
frequency domains
Is the frequency domain plot of a voice signal discrete or continuous? - ansFrequency
domain plot of a voice signal is continuous because voice is non periodic signal.
Is the frequency domain plot of an alarm system discrete or continuous? - ansThe
frequency domain plot of an alarm signal is discrete
Name three types of transmission impairment - ansAttenuation, Distortion, Noise
We modulate several voice signals and send them through the air. Is this
baseband or broadband transmission? - ansBaseband transmission
We send a digital signal from one station on a LAN to another station. Is
this baseband or broadband transmission? - ansBaseband transmission
We send a voice signal from a microphone to a recorder. Is this baseband
or broadband transmission? - ansBroadband transmission
What does the amplitude of a signal measure? What does the frequency of a
signal measure? What does the phase of a signal measure? - ansAmplitude is value of signal
at any point on the wave on a time domain plot graph.
Frequency is rate of change with respect to time.
Phase is described the position of the waveform relative to time zero.
What does the Nyquist theorem have to do with communications? - ansit is a theoretical
formula that calculates the data rate for a noiseless channel.
For a noiseless channel, the Nyquist bit rate formula defines the theoretical
maximum bit rate
What does the Shannon capacity have to do with communications? - ansa formula, to
determine the theoretical highest data rate for a noisy channel.
,Transmission Impairments-Data Communication-Lecture Notes|Already Graded A+
What is the relationship between period and frequency? - ansPeriod is the inverse of
frequency, and frequency
is the inverse of period,
Why do optical signals used in fiber optic cables have a very short wave length? -
ansOptical signals have very high frequencies. A high frequency means a short wave
length because the wave length is inversely proportional to the frequency (λ = v/f),
where v is the propagation speed in the media.
Can we say whether a signal is periodic or non periodic by just looking at its
frequency domain plot? How? - ansIf a signal is periodic, we can see the signal was
consistent or same size and shape along the signal. For a signal nonperiodic , we can see
the signal was not consistent, and have difference size and shape.
Distinguish between a low-pass channel and a band-pass channel. - anslow-pass channel is
having bandwidth between 0 and infinity(f). The lowest supported frequency of a low pass
channel is 0. Band- pass channel is having a bandwidth between f1 and f2, this means, the
least frequency supported by a band pass channel is not zero.
Distinguish between baseband transmission and broadband transmission. - ansbaseband
transmission is sending a digital signal over a channel without changing the digital signal to
analog.
broadband is changing the digital signal to analog for transmission
How can a composite signal be decomposed into its individual frequencies? - ansby
frequency domains
Is the frequency domain plot of a voice signal discrete or continuous? - ansFrequency
domain plot of a voice signal is continuous because voice is non periodic signal.
Is the frequency domain plot of an alarm system discrete or continuous? - ansThe
frequency domain plot of an alarm signal is discrete
Name three types of transmission impairment - ansAttenuation, Distortion, Noise
We modulate several voice signals and send them through the air. Is this
baseband or broadband transmission? - ansBaseband transmission
We send a digital signal from one station on a LAN to another station. Is
this baseband or broadband transmission? - ansBaseband transmission
We send a voice signal from a microphone to a recorder. Is this baseband
or broadband transmission? - ansBroadband transmission
What does the amplitude of a signal measure? What does the frequency of a
signal measure? What does the phase of a signal measure? - ansAmplitude is value of signal
at any point on the wave on a time domain plot graph.
Frequency is rate of change with respect to time.
Phase is described the position of the waveform relative to time zero.
What does the Nyquist theorem have to do with communications? - ansit is a theoretical
formula that calculates the data rate for a noiseless channel.
For a noiseless channel, the Nyquist bit rate formula defines the theoretical
maximum bit rate
, Transmission Impairments-Data Communication-Lecture Notes|Already Graded A+
What does the Shannon capacity have to do with communications? - ansa formula, to
determine the theoretical highest data rate for a noisy channel.
What is the relationship between period and frequency? - ansPeriod is the inverse of
frequency, and frequency
is the inverse of period,
Why do optical signals used in fiber optic cables have a very short wave length? -
ansOptical signals have very high frequencies. A high frequency means a short wave
length because the wave length is inversely proportional to the frequency (λ = v/f),
where v is the propagation speed in the media.
