Radio Waves
Radio Waves
About Understanding And Kind Of Radio Waves. the frequency
of the radio waves propagate at a frequency of 100,000 Hz to 100,000 Hz, 000,
000, which was used as a communication tool. This wave is used as carriers of
information from one place to another. Due to its easily reflected by layers of
the ionosphere of Earth, then the radio waves can reach places on earth that
the distance is very far from the radio transmitter. Information form a voice
carried by the radio waves as a change in the amplitude modulation called
amplitude, as well as the change of frequency is called frequency modulation.
About Understanding And Kind Of Radio Waves
Radio waves are a form of electromagnetic radiation, and are
formed when electrically charged object of wave oscillator (carrier wave) is
modulated with the audio waves (modulated frequency) on the frequency found in
the frequency of the radio waves (RF; "radio frequency") on a
spectrum of electromagnetic radiation, and elektromagnetiknya move by means of
electric oscillations or magnetic.
Types of radio waves
Wave length (long wave); This type of wave has a long signal
so that it is able to reach a very broad range of areas. The disadvantage of
this wave is requires a very large electrical power so expensive in its
operational, due to its length and width type cause susceptible to interference
(noise)
Short waves (short wave) wave which uses air as a mediator.
This type of wave is a SW (short wave), the advantage of this wave is capable
of reaching the territory (coverage area) that is widely used by Many
international or transcontinental transmitter, the disadvantage of this wave is
a lot of noise-in particular from its Sun, weather, air, lightning etc., the
human voice can be heard well but pengguanaan sound effect kulitasnya loss of
quality (blurry)
Medium wave (medium wave); the waves using the surface of
the Earth as a mediator. In General most of the waves used by radio stations.
The type that is used by this wave was the AM (amplitude modulation) and FM (frequency
modulation) of the advantages of this wave is the Earth's surface is less
influenced by the weather so there happen to nicer broadcasting Quality noise
in sound quality and sound effects. The disadvantage of this wave is the ground
absorbs more quickly than the air that causes the broadcast range more narrowly
so as to require a booster, lands in Indonesia contain iron which absorbs
quickly so it is a poor conductor
Propagation Of Waves
Radio waves through cable Is an easy way in moving sound
through the radio, but also the most expensive. The principle of propagation of
a wave like this generally digudakan in the building or better known as the in
house radio (e.g. college campuses in America or inhouse radio department store
at the Sun) of the benefits of this wave is sound very nice, there is no
disturbance of the disadvantages of this wave is the cost that much because it
takes thousands of cables.
Radio wave Transmission through the air this way usually use
short wave. The mechanism works is to throw the sound waves with a certain
angle to the ceiling space. The sounds in the wave form that subsequently
reflected with the same angle to the surface of the Earth
Steaming Radio/Radio Online Radio Online is that in the
broadcast using digital technology based, which is shipped via Media media
sender data such as Satellite and cable networks. Sound and music from the
radio station will be converted into a binary number, which form a code-code
that the code can be later converted back into sounds we can hear.
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