0
Why aren't ultraviolet waves not used to transmit signals to and from communication satellites?
Because they are of the highest frequencies in the known electromagnetic spectrum. This means their wavelength are very short, which means they will not travel very far, as opposed to low-frequency RF waves. In comparison, the same idea applies to vehicle taillights and why they're colored red (the color red has the longest wavelength in visible light and it will be visible even from a long distance).
What else can I help you with?
What is the difference between high frequency signals and low frequency signals in terms of 1 distance that can be traveled 2 transmit power required and 3 susceptability to EMI?
mota
How does the presence of myelin help axons work?
Myelin makes it easier for acons to transmit signals- it speeds there work.
What data do infrared satellites use to create image?
They convert infrared radiation into electrical signals which is then converted into visible light.
Which types of electromagnetic waves are used for communication?
Technically all could be used for communication. Although not all may be suited for the use. Here are a few examples: Radio waves - short wave/long wave radio Microwaves - Used for communication of space objects (spacecraft, satellites, radar etc) Infra-red - Used as a wireless communication between devices like mobile phones Ultra Violet - Butterflies use two ultraviolet signals, UV reflectance or absorbance as a communication system X-Rays - High powered telescopes Dont forget fibre optics for the visible part of the spectrum.
Gps satellite altitude?
The constellation of GPS satellites usually rotates about 20 000km altitude. Each satellite is about the size of a small truck, plus its solar sails for electricity generation. About 24 satellites per constellation, and constellations exist or are under construction for the US, the Soviets, the EU, and for China. Nowadays they contain an atomic clock, and effectively give out accurate time signals which may be decoded on the earth's surface.
Which satellites transmit and receive signals in the 12 to 18 GHz band?
ku-
Did tv stations air their brodcasts from space?
No, TV stations do not broadcast their programs directly from space. Satellite communication technology is used to transmit signals from Earth to satellites in space, which then retransmit the signals to users on the ground.
How did satellite improve communication?
The satellites are sent into outer space by rockets. They revolve around the Earth. Signals are sent up to the satellites which transmit them back to Earth, covering a much larger area in the process. It is because these satellites that you can see events such as cricket matches being played in England or West Indies live on your television. Telephone and computer signals are also sent to other countries through satellites.
Do television satellites use infrared waves to transmit?
Television satellites do not use infrared waves to transmit signals; instead, they primarily use radio waves, specifically in the microwave frequency range. These microwaves are effective for long-distance communication, allowing satellites to transmit audio and video data back to Earth. Infrared waves, while used in certain applications like remote controls and some optical communication systems, are not suitable for the large-scale transmission required by television broadcasting.
What type of wavelength are commonly used to communicate with satellites?
Microwaves are commonly used to communicate with satellites due to their ability to penetrate the Earth's atmosphere and transmit data over long distances. This frequency range is well-suited for satellite communication because it can effectively transmit signals without being significantly attenuated by the atmosphere.
How active satellite differ from passive explain with an example?
active satellites are receives the transmitted signal from earth ,amplify the signal and transmit it. it is also called as transponders. but passive satellites just receive and transmit the signal.itac as the reflector
What do all satellites have in common?
All satellites orbit the Earth, whether they are used for communication, navigation, weather observation, or scientific research. They are designed to transmit or receive signals or data for various purposes while in orbit around the Earth.
What is the purpose of having communication satellites?
The purpose for having communication satellites in space, is by providing telecommunication throughout the world. Communication satellites are mostly used for mobile phone signals, weather tracking, and broadcasting television programs.
How is a communication satellite is used?
A communications satellite operates as a transceiver (TRANSmitter - reCEIVER). Signals from a base station on Earth are sent to a satellite receiver. The data is either stored for a period of time or sent immediately to a transmitter on the same satellite. The transmitters on satellites are positioned to transmit towards Earth or towards other satellites. A base station on Earth will receive the transmitted signals and pass them to land based equipment. As satellite signals rely on line of sight, they each have a range over which they can send signals. Too far round the Earth and the signal won't make it. That's why they can also transmit to other satellites before the signal is finally returned to Earth, far round the globe. The data carried by communication satellites is used for a wide variety of applications. Television, telephones, computer networks and far more are regularly sent to and from satellites.
What do electromagnetic waves do in the process of communication?
Electromagnetic waves are used in communication to carry information through the air or space. They transmit signals between devices like radios, cell phones, and satellites, allowing for the exchange of data and messages over long distances.
Which satellite configuration allows you to transmit signals globally?
At least three geosynchronous satellites orbiting equidistantly from one another.
How do artificial satellites work in the Philippines?
In the Philippines, artificial satellites work as transmitters. These transmit cellular phone communications, Internet, weather observation, television channels' signals, and navigation.
