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In order to understand antennas it is helpful to understand electricity and it's effect on metals, so for a comprehensive understanding you should first educate yourself on that subject. However, if you are just curious and would like to have a basic knowledge then consider the following analogy. When you throw a beach ball into a calm swimming pool, you will see waves go out in all directions from the beach ball. The waves will proceed across the pool until they encounter the interference of the edges of the pool. The height of the waves depends both on the size of the beach ball you throw and how much power you put into that throw. Antennas work in the same way. When electricity is "thrown" into the metal of an antenna, the metal reacts to the electricity at an atomic level in the form of a wave. This wave, just like the beach ball wave in the swimming pool, radiates outward from the point where the electricity enters the antenna. Now, because antennas are working with radio waves and not water waves, the waves in the metal of the antenna actually produce waves in the air touching the antenna. The waves also continue outward through the air until they encounter interference which is why you will have difficulty receiving a radio signal deep inside a building. The structure of the building is stopping the radio waves in the air from getting to you, just like the edge of the pool prevents the water waves from getting to you as you sit in your pool side lounger.
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoIt 'collects' the radio waves, and they reflect off the dish to a 'focal point' - At the focal point is a 'horn' containing a tiny antenna. This is connected by cable to the receiver.
Wiki User
∙ 10y agoAM and FM radio antennas work by capturing electromagnetic radio waves in the air and feeding them into the radio. They are then broadcast in sound through the speakers.
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What makes FM radios different from AM radios?
AM radio is KHz FM radio is MHz AM radio can cover the world. FM radio can cover a county. AM radio is excellent in communication. FM radio is completely worthless, except for good sound quality. AM radio doesn't have as good sound quality as FM. FM is much higher on the radio spectrum than AM.
What are the differences between AM and FM radio?
The main difference between AM and FM radio is the dial-in number and the amount of static each receive. AM radio preceded FM radio, with FM becoming popular in the 1950s.
Difference between satellite radio and regular radio?
One of the main differences between satellite radio and FM radio is that there is a cost for satellite and FM is free. Satellite radio also does not operate using the same numerical AM and FM channels as FM radio.
When was Radio Manila FM created?
Radio Manila FM was created in 2010.
When was Switch FM Radio created?
Switch FM Radio was created in 2010.
What will be the effect of mounting two different fm radio antennas with different frequencies on the same mast?
There will be no interference because the antennas are on different frequencies.
Why would your radio work on the AM stations and not on the FM on a 99 grand Cherokee jeep?
Am signal but no FM signalAM and FM signals use different antennas to receive the frequencies they use. If you are receiving an AM signal (if you can tune in to an AM radio station), but you can't receive an FM signal (you cannot tune into an FM radio station), then the most likely cause of your problem is that your FM antenna is broken. This is assuming that you get only static while on the FM setting on the radio. If you get nothing, meaning no sound at all, then there is most likely a mechanical or electrical problem with the insides of the radio. (the FM button is broken, the chipset is blown...or a number of other electrical problems)
Why do cell phones have very short antennas?
Cell phones use radio waves travelling at the speed of light with a typical frequency of 800 MHz, which is ten times greater than FM radio frequency. Due to shorter wavelengths, the cell phones use very short antennas.
What makes FM radios different from AM radios?
AM radio is KHz FM radio is MHz AM radio can cover the world. FM radio can cover a county. AM radio is excellent in communication. FM radio is completely worthless, except for good sound quality. AM radio doesn't have as good sound quality as FM. FM is much higher on the radio spectrum than AM.
What is an FM radio?
A radio that receives Frequency Modulated (FM) transmissions.
Does the FM radio on the HTC freestyle cost money?
Nope, FM radio on phones doesn't use any data plan or money. If it says the headphones work as an antenna, it's free. FM radio would just connect to a radio station. AT&T Radio does need a data plan and will cost you money.
What are the differences between AM and FM radio?
The main difference between AM and FM radio is the dial-in number and the amount of static each receive. AM radio preceded FM radio, with FM becoming popular in the 1950s.
Difference between satellite radio and regular radio?
One of the main differences between satellite radio and FM radio is that there is a cost for satellite and FM is free. Satellite radio also does not operate using the same numerical AM and FM channels as FM radio.
When was Switch FM Radio created?
Switch FM Radio was created in 2010.
When was FM Radio Gods created?
FM Radio Gods was created in 2006.
When was Radio Manila FM created?
Radio Manila FM was created in 2010.
What antenna do I need for my CB radio?
The main thing to remember for CB radio antennas is that taller antennas will work better. If this is for a vehicle, select a tall antenna where at least 50 percent of it will be above the roof line. You will have the best range this way.
