The ionosphere reflects radio waves back to Earth. Actually I heard it is refraction, not reflection; but the term "reflection" is commonly used.
ionosphere <novanet>
The layer of charged particles in Earth's atmosphere is called the ionosphere. The most famous application of this layer is AM radio, which bounces its waves off of the ionosphere for radio receivers to use.
The ionosphere there are particles called ions in the ionosphere (hens the name). The ions cause radio waves from am radio stations to bounce off of it.
The methosphere is a layer but it is not a major layer of the earth
there are 5 layers of the atmosphere :-troposphere ( our layer)-stratosphere ( the layer which contains the ozone layer)-mesosphere (the coldest layer)-thermosphere (the hottest layer)-exosphere ( the layer that leaves into space)
To be specific, its ionosphere. It is one of the layers above the earth's atmosphere consisting of ions of gases. Radio signals are reflected back to the earth from this very layer.
I believe it is the Ionosphere.
ionosphere <novanet>
The ionosphere bends radio waves . . . most go out into space, but a fair number hit the earth far away, and are reflected back up to the ionosphere. Radio operators call this phenomenon, "The skip".
The ionosphere is the layer of the atmosphere that reflects radio waves. This layer is able to reflect specific frequencies of radio waves back to Earth, allowing for long-distance communication using radio signals.
Radio waves are reflected by many solid objects, such as wood, stone, and notably metal, allowing the use of microwaves in radar applications.Also importantly in broadcast radio, the ionosphere (an upper layer of the Earth's atmosphere) can bounce signals back down to locations beyond the line-of-sight horizon.
The ionoshere
The atmospheric layer that refracts (bends) radio signals is called the ionosphere. The radio waves are reflected a little, as you say, but are mostly refracted, that is, bent, back to earth. Happenss in the daytime, too, but too little to be useful in most cases. By the way, it is a similar process that messes up GPS locator precision.
The ionosphere. To clarify, only the low-frequency radio waves incorrectly called "high-frequency" or "HF" of about 50MHz and below are reflected. "Very High Frequency" VHF signals are not reflected, but go straight off into space. For example, in the "AM" commercial broadcast spectrum, the transmission is reflected back to the Earth and is receivable for great distances, a phenomenon that used to be called "skip". AM signals are in the band of 550KHZ to 1.6 MHz. "FM" stations in the band from 88MHz to 108MHz are only received by "Line of sight" transmissions.
Radio LinksThe physical layer transmits signals in form of radio waves.
Ozonosphere has concentration of ozone, sufficient to block the ultraviolet radiation from sun. Thats why this layer of atmosphere called ozonosphere. Ionosphere, this layer enables wireless transmission, radio wave transmitted from earth, is reflected back to earth by these ions. The ionosphere is the top most layer of earth atmosphere usually its where the satelites hang around.
The layer of charged particles in Earth's atmosphere is called the ionosphere. The most famous application of this layer is AM radio, which bounces its waves off of the ionosphere for radio receivers to use.