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The way the signal is transmitted and processed. FM radios are transmitted via signal generators and amplifiers on the ground while digital radio like Sirius or AM are transmitted via satellites. The digital signals are sent in packets vs. lower frequency radio waves.
The antenna should be parallel to the electrostatic field of the wave, and perpendicular to its magnetic field and to its direction of propagation.
He did some early experiments with radio in Canada, and he may have transmitted before Marconi in Italy.
On Christmas Eve night, a Canadian inventor named Reginald Fessenden played. "Largo" by Handel using an alternator transmitter. He then transmitted himself playing, "O Holy Night" on the violin.
Radio controlled watches use radio waves that are set by synchronizing a time code that are transmitted by a radio transmitter. These radio controlled watches are used to set and display the time accurately.
''The radio waves were transmitted from the the radio tower and were picked up by the radio itself'' Hope that helps!
The data was transmitted via email. Disease can be transmitted from one person to another through contact with common objects such as a doorknob. The radio station transmitted a live rock concert on its station last night.
If you mean "on air" as with radio and television, mobile telephones etc., then no they do not. They are part of the electromagnetic spectrum and are transmitted through this. I suppose you could say they pollute the electromagnetic spectrum.
radio waves radiation
Space craft send messages electronically via radio waves. And these actually move through a vacuum better then through the atmosphere.
Radio Waves
The Earths ionosphere reflects low frequency radio waves. At night it moves higher up. You can literally aim your antenna at it and bounce a signal to a very far away location.
The way the signal is transmitted and processed. FM radios are transmitted via signal generators and amplifiers on the ground while digital radio like Sirius or AM are transmitted via satellites. The digital signals are sent in packets vs. lower frequency radio waves.
Your radio separates the stations according to their frequency (wavelength).
FM radio is transmitted anywhere in the spectrum of 88Mhz to 108Mhz
Radio. If you can't talk to them directly by hearing their voices, then it is transmitted by radio.
The antenna should be parallel to the electrostatic field of the wave, and perpendicular to its magnetic field and to its direction of propagation.