0
When an electrical field changes sign, some of the energy will radiate into space. When the sign reverses the field will change again.
Thus radiated into space at approx the speed of light will be a series of electromagnetic waves.
These waves can also carry modulation - a characteristic of the wave may be varied. In the simplest form, the amplitude of the radio wave (commonly known as the carrier) may be varied by applying a speech signal for example.
Several other modulation styles are also available, and I'll just name them, rather than describing them. Phase Modulation, Frequency Modulation, Pulse Modulation.
In addition, the polarization of a wave may be varied.
What else can I help you with?
What waves can be used for communication?
Any wave can be used for communication. This is because waves (of any kind) can be made to form patterns, and those patterns can be defined to mean certain things. The most common wave used for communication is the sound wave (or more accurately, a pressure wave through the air). Radiowaves and other electromagnetic waves are also commonly used, as they can cover long distances extremely quickly and don't have as much interference.
Why is talking important in communication?
well if you didn't talk in communication then what is the point of communication? communication means how to communicate with people and lots of people talk to explain how to communicate nicely with other people. eg. some one says hi in a nice manner and you just wave. that isn't very good communication, that is poor communication. If You want to communicate then talking is important.
What are the two types of wave communication used in broadcasting?
AM and FM AM=Amplitude Modulation FM=Frequency Modulation Hope this helps
What is different between baseband communication and carrier communication?
Baseband communication transmits digital signals directly over a communication medium without modulation, typically used in local area networks (LANs) where the entire bandwidth of the medium is utilized for a single signal. In contrast, carrier communication involves modulating a carrier wave to transmit information over longer distances, allowing multiple signals to occupy the same medium simultaneously through techniques like frequency division multiplexing. This makes carrier communication more suitable for broadcasting and long-range transmissions.
What unit is a cw?
A "cw" typically refers to a "continuous wave," which is a type of electromagnetic wave that maintains a constant amplitude and frequency. In the context of communication, particularly in radio and telecommunications, it often relates to the use of continuous wave signals for transmitting information, such as Morse code. While "cw" can also refer to "centiwatt," a unit of power equal to one-hundredth of a watt, its specific meaning depends on the context in which it's used.
What is the cause of error in wireless communication?
normally, it is where a radio wave is interfering with the communication wave that you are sending out (I think).
Which wave Mobile phones uses for communication?
Electrom magnetic wave
Which signal is used in communication?
micro wave is used in cell phone communication.
What type of propagation is used in telephone communication?
Wave propagation
What is demodulation in communication?
recovering the information content from modulated carrier wave
Do bearded dragons wave as a form of communication or behavior?
Yes, bearded dragons wave as a form of communication and behavior. This behavior is often used to signal submission or to establish social hierarchy among themselves.
What waves can be used for communication?
Any wave can be used for communication. This is because waves (of any kind) can be made to form patterns, and those patterns can be defined to mean certain things. The most common wave used for communication is the sound wave (or more accurately, a pressure wave through the air). Radiowaves and other electromagnetic waves are also commonly used, as they can cover long distances extremely quickly and don't have as much interference.
How does noise impact the effectiveness of communication?
Because it distrupts the wave frequency to which you comunicate with.
Should I wave back at my bearded dragon when it waves at me?
No, bearded dragons do not wave as a form of communication or social interaction. They may wave their arms for other reasons, such as stretching or adjusting their position.
Do Tasmanian devils wave their tail to communicate with others?
No. Tasmanian devils do not wave their tails as a means of communication. This trait is more characteristic of felines.
Traveling wave of excitation is known as?
Traveling wave of excitation is known as an action potential in nerve cells or an impulse in muscle cells. This wave allows for communication and coordination of cell activities in the body.
What are the names of the 5 great waves?
The five great waves refer to significant movements in the history of communication and technology that have transformed society. They are: the printing wave, which revolutionized information dissemination; the telegraph wave, which enabled instant long-distance communication; the telephone wave, which enhanced personal connectivity; the television wave, which changed entertainment and news consumption; and the internet wave, which has connected the world in unprecedented ways. Each wave has significantly impacted how people interact and share information.
