0
What else can I help you with?
Which modulation technique is most prone to noise PWM or AM?
AM = Amplitude Modulation and is more prone to noise because the signal amplitude caries the intellegence, Noise changes this easily. PWM is Pulse Width Modulation and noise does not change the width of the pulses, though it may introduce other pulses. Therefore the original intellegence is still recoverable.
What is the impedance of water?
Impedance of water is the density of water times the sound velocity in water ANSWER: Pure water has a high resistivity. An ohmmeter i a good way to check for quality of water. If resistance is low it means that it is has other material floating in there.
How many channels has 2MB PCMpulse code modulation?
Total 32 channels out of which 30 for voice 1 for signalling and other for Syncronization
Compare high level modulation and low level modulation?
IN LOW LEVEL MODULATION THE MODULATING SIGNAL IS APPLIED NEARER THE CARRIER OSCILLATOR N IN HGH LEVEL MODULATION MODULATING SIGNAL IS APPLIED AT OUTPUT OF FINAL POWER AMPLIFIER OR FAR FROM CARRIER OSCILLATOR... IN OTHER WORDS :::: IN HAIGH LEVEL MODULATION THE AF SIGNAL IS APPLIED TO COLLECTOR OR PLATE AS THEIR RESPECTIVE DEVICES..... N IN LOW LEVEL MODULATION AF SIGNAL IS APPLIED AT BASE OR GRID IN TRANSISTOR AND TUBES RESPECTIVILY IN LOW LEVEL MODULATION THE MODULATING SIGNAL IS APPLIED NEARER THE CARRIER OSCILLATOR N IN HGH LEVEL MODULATION MODULATING SIGNAL IS APPLIED AT OUTPUT OF FINAL POWER AMPLIFIER OR FAR FROM CARRIER OSCILLATOR... IN OTHER WORDS :::: IN HAIGH LEVEL MODULATION THE AF SIGNAL IS APPLIED TO COLLECTOR OR PLATE AS THEIR RESPECTIVE DEVICES..... N IN LOW LEVEL MODULATION AF SIGNAL IS APPLIED AT BASE OR GRID IN TRANSISTOR AND TUBES RESPECTIVILY
The total power content of an AM signal is 1000W Determine the power being transmitted at the carrier frequency and at each of the sidebands when the percent modulation is 100 percent?
In Double Sideband AM (DSB-AM) modulation, two thirds of the power is consumed by the carrier, so 667W would be transmitted at the carrier frequency. The remaining 333W is split equally between the two sidebands, each being mirror images of each other.
Difference between velocity and current modulation in klystron?
Velocity modulation in a klystron involves the interaction between the electron beam's velocity and the RF field to produce amplification. Current modulation, on the other hand, involves varying the electron beam's current to control the amplification of the RF signal. In summary, velocity modulation affects the electron beam's speed, while current modulation affects the electron beam's density in a klystron.
What are the microwave tubes is based on the principal of velocity modulation?
The klystron and the traveling wave tube (TWT) are two types of microwave tubes based on the principle of velocity modulation. In these tubes, the electron beam's velocity is modulated by an external signal, leading to the amplification of microwave signals. These tubes are commonly used in radar systems, satellite communications, and other high-power microwave applications.
Explain how distance time and velocity are related to each other?
They are related through the formula distance = time x velocity (assuming constant velocity).
How are position, velocity, and acceleration related?
Position, velocity, and acceleration are related in that velocity is the rate of change of position, and acceleration is the rate of change of velocity. In other words, acceleration is the second derivative of position, and velocity is the first derivative of position.
How are mass and density related to each other?
mass = volume x density
How do salinity and density related to each other?
Increasing the salinity the density is also increased.
How are acceleration and velocity alike and different from each other?
-- both are related to measurements of motion of objects -- acceleration is the rate at which velocity changes
What are displacement velocity and acceleration and what are their relationships to each other in terms of motion?
Displacement is the change in position of an object, velocity is the rate at which an object changes its position, and acceleration is the rate at which an object's velocity changes. In terms of motion, acceleration is related to velocity by the derivative of velocity with respect to time, and velocity is related to displacement by the derivative of displacement with respect to time.
How are gravity and velocity related?
Gravity and velocity are related in the sense that gravity is the force that pulls objects toward each other, causing them to accelerate. As an object moves faster (increases velocity), it may experience a larger gravitational force depending on its mass and the mass of the other object. Thus, velocity can affect the gravitational interaction between objects.
What is the meaning of FM in FM Radio?
FM means frequency modulation AM means amplitude modulation
Is velocity and energy related?
Any object that has velocity has a type of energy known as kinetic energy - i.e., energy of movement. However, there are other types of energy that are not directly related to velocity.
What is Modulation index in Frequency modulation?
Modulation Index is the ratio of the maximum deviation frequency to the frequency of modulation. In other words it is the ratio of the spread in frequency spectrum to the frequency that was used to modulate the carrier. For FM, modulation index is given by the formula mf= df/f where, mf=modulation index for FM df=difference in carrier frequency f=frequency of the signal
