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As long as a radio signal is shooting from one place to another through space, it's
a wave of electromagnetic fields. Once it hits an electrical conductor ... like a piece
of wire that happens to be part of an antenna (aerial) ... the electromagnetic fields
set up a small electric current in the conductor, and the signal has been "captured".
That small electric current runs directly into electronic equipment that's used to make
the current stronger, pick out the one single frequency from all the hundreds or
thousands of separate signals that have set up currents in the antenna as they
passed by, then make that one stronger again, and eventually strip the information
from it, and use the information to reconstruct the sound of a song, the voice of
a newscaster or a cellphone caller, a TV picture, the data off of the Wifi in your
house, or the data from ten different satellites for the GPS unit on your dashboard.
One of the primary goals of the art and science of antenna design is to squeeze
the maximum antenna current out of that incredibly weak electromagnetic signal
as it flies by.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoLong wave radio signals are picked up by long antennas.
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What is a wireless transmission medium that distributes radio signals through the air over long distances?
Broadcast Radio
Why were long-range radio signals important?
so people could communicate over long distances
Is a wireless transmission medium that distributes radio signals through the air over long distances?
broadcast
In which date the first radio was invented?
The first radio was invented by gugliemo marconi but jc Bose who first showed that radio signals could be sent over long distances without wires. Radio was invented in i921.Ansered byvaibhav gupta
What were radios called in 1937?
By 1937, radio had long been known as "radio." But if you had been around in the early 1920s, radio was called a number of things-- wireless, wireless telephone, radiophone, and radio telephone. By the mid-1920s, however, the other words had fallen out of use, and radio was in fact only called "radio." What is interesting about 1937 is that FM was beginning to get into the news. In radio's first several decades, all stations were on AM. But in the late 1930s, inventor Edwin Howard Armstrong was demonstrating his new way of broadcasting-- which was generally referred to as "static-free radio"-- since AM signals tended to pick up all kinds of interference from the atmosphere, whereas FM signals did not.
How do long radio signals get back down to earth?
How do THEY get back to earth?!
What does AM and FM on the radio stand for?
Amplitude Modulation and Frequency Modulation. They are different methods of transmitting radio signals. AM is good for transmitting radio signals long distance FM is good for transmitting radio signals short distances but better quality
What is a wireless transmission medium that distributes radio signals through the air over long distances?
Broadcast Radio
What is the is wireless transmission medium that distributes radio signals through the air over long distances?
Broadcast Radio
How long ago has Earth been broadcasting radio signals into outer space?
Earth has been broadcasting radio signals into outer space since the late 1800's.
Why were long-range radio signals important?
so people could communicate over long distances
How long after Marconi sent radio signals were the first black and white pictures telecast?
5years
What is a piece of equipment made of wire or long straight pieces of metal for receiving or sending radio and television signals?
This might be a description of a radio antenna.
Is a wireless transmission medium that distributes radio signals through the air over long distances?
broadcast
What is the difference between an aerial and an antenna?
i think.... and i only think this, it may not be correct, an antenna transmits as well as receives, an aerial only receives there is no difference between antenna and aerial. According to British spelling it is called Aerial and according to American English antenna. So there is no difference just the English In the U.S. sometimes antenna is used for rigid structures used to transmit or receive radio signals, while aerial is used for a simple wire hung between insulators used to transmit or receive radio signals.
How long has Earth been broadcasting radio signals into outer space?
Radio signals on Earth have been travelling outwards for almost 100 years, but the range is not very great because they go below the level of galactic noise quite quickly as they spread out.
In which date the first radio was invented?
The first radio was invented by gugliemo marconi but jc Bose who first showed that radio signals could be sent over long distances without wires. Radio was invented in i921.Ansered byvaibhav gupta
