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Does some wavelength of radio wave are reflected by the ionosphere and come back to Earth?
Question: Why do low freqs reflect from the ionosphere while high freqs go straight thru?
ANS:- ANSWER: -for the same reason that high freqs can pass thru a parabolic dish
of screen but the low freq reflects off the screen.
The spacing of the screen wires have to be a small % of wavelength.
The ionosphere must have ions that are spaced further apart than say 1 meter
---so that a 300MHz signal (wavelength = 1 meter) will not see it as a "solid"
whereas a 1MHz AM-band signal (wavelength =300 meters) will see the ion field
as as as a "solid" wall to bounce off. (PhilDragonetti, RF Engineer)
What else can I help you with?
Radio waves bounce and return to earth?
The Radio waves are reflected back to Earth in the Ionosphere.
What level of atmosphere bounces off radio waves off of the earth?
Radio waves are in all parts of the atmosphere. Some, but not all, radio waves are reflected from the ionosphere, permitting transmission over greater distances.
Which Atmospheric layer reflects radio wave?
It is the ionosphere, a general region that includes all of the thermosphere and parts of the two bordering layers. In this region, between 60 and 1000 kilometers above the Earth, ionized particles refract and reflect radio waves back toward the ground. This enables radio transmissions that are normally "line of sight" only to reach over the horizon for hundreds or thousands of miles. This includes broadcast radio (HF) and shortwave bands.
What do radio waves bounce off?
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.
How do you communicate with astronauts if radio waves are reflected back to earth?
Radio signals at frequencies up to roughly 40 to 60 MHz are absorbed or reflected from the ionosphere. At higher frequencies, the signals easily penetrate the ionosphere and continue on into space. This is the reason that AM radio (1 MHz) and "short-wave" broadcasts (4-13 MHz) are often received from great distances, but TV (54 MHz and up) and FM radio (100 MHz) are not.
Radio waves bounce and return to earth?
The Radio waves are reflected back to Earth in the Ionosphere.
What layer of the earth's atmosphere where the radio communication are reflected back to the earth?
I believe it is the Ionosphere.
Does AM radio travel through the ionosphere?
Any Amplitude Modulated radio signal will penetrate the ionosphere if its carrier frequency is high enough. Signals in the commercial AM broadcast band, with frequencies between 530 and 1700 KHz, aren't high enough. Most of their energy reflects from the ionosphere.
What is the layer of atmosphere where radio signals are reflected back to the earths surface?
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".
What level of atmosphere bounces off radio waves off of the earth?
Radio waves are in all parts of the atmosphere. Some, but not all, radio waves are reflected from the ionosphere, permitting transmission over greater distances.
Which Atmospheric layer reflects radio wave?
It is the ionosphere, a general region that includes all of the thermosphere and parts of the two bordering layers. In this region, between 60 and 1000 kilometers above the Earth, ionized particles refract and reflect radio waves back toward the ground. This enables radio transmissions that are normally "line of sight" only to reach over the horizon for hundreds or thousands of miles. This includes broadcast radio (HF) and shortwave bands.
Radio and tv signals are reflected back to earth in witch layer?
Radio and TV signals are reflected back to Earth in the ionosphere, specifically in the F layer. This layer is located approximately 150-500 kilometers above the Earth's surface and is characterized by its ability to reflect high-frequency radio waves.
What is the type of wave is reflected by particles in the ionosphere?
Radio waves are reflected by particles in the ionosphere. These waves are commonly used in long-distance communication because they can bounce off the ionosphere and travel long distances by reflecting and refracting off the charged particles in the Earth's upper atmosphere.
What do radio waves bounce off?
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.
Radio waves are reflected by the?
Good conductors like metals, the ionosphere, etc.
Why are short-waves used in long distance broadcasrs?
Long-distance radio waves are particularly affected by the E and F layers of Earth's ionosphere, causing them to be refracted and reflected back to Earth at a much farther distance or range than they would travel along the Earth's surface. The Earth's surface often reflects the radio waves back up to the ionosphere, where they are again refracted and reflected back to Earth, adding another large distance to their range
Type of radiation stopped in the ionosphere?
High-energy radiation such as gamma rays and X-rays are stopped in the ionosphere by interactions with the particles and magnetic fields present in this region of the Earth's atmosphere. The ionosphere acts as a shield, absorbing and scattering these types of radiation before they can reach the Earth's surface.
