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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 are the types of microwave communication?
it is technic used to exchange information from point to point or from tower to tower by using radio wave and it must be in line of sight with distance about 35 km and it must be no stracure metween these tower
Basic types of communication?
inerta communication inter communication mass communication group communication
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.
How does noise impact the effectiveness of communication?
Because it distrupts the wave frequency to which you comunicate 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.
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.
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.
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.
Which signal is used in mobile communications?
micro wave is used in cell phone communication.
