February 06, 2020
Amitraj
Modulation
The process of impressing low-frequency information to be transmitted on to a high-frequency wave, called the carrier wave, by changing the characteristics of either its amplitude, frequency or phase angle is called modulation.
OR
In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted.
Advantages Of Modulation
Reduction of antenna size
No signal mixing
Increased communication range
Multiplexing of signals
Possibility of bandwidth adjustments
Improved reception quality
Need for Modulation
Short Operating Range
Poor Radiation Efficiency
Mutual Interference
Huge Antenna Requirement
The process of impressing low-frequency information to be transmitted on to a high-frequency wave, called the carrier wave, by changing the characteristics of either its amplitude, frequency or phase angle is called modulation.
OR
In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted.
Advantages Of Modulation
Reduction of antenna size
No signal mixing
Increased communication range
Multiplexing of signals
Possibility of bandwidth adjustments
Improved reception quality
Need for Modulation
Short Operating Range
Poor Radiation Efficiency
Mutual Interference
Huge Antenna Requirement
