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What is the transmission from a satellite to an earth-based station?
The transmission from a satellite to an earth-based station is typically done using radio frequency signals. The satellite sends data to the ground station through a process called downlinking. The ground station receives the signals, processes the data, and distributes it to its intended destination.
What sends data to a satellite?
A transmitter sends data to a satellite, typically using radio waves. The data is transmitted from a ground station, a vehicle, or a mobile device to the satellite, which then relays the information to other satellites or back down to Earth.
How do satellites transfer information to television?
satellites must transmit all their information to the earth down .satellites transmit information gathered by their sensors during each contact with the ground station. They contact the station using a large dish antennae which is situated on earth, at the site of the ground station. During the contacts between the satellite and ground station the satellites usually transmit information about the state of its various subsystems abd its position in space.
What was the mission of the challenger?
The mission of the space shuttle Challenger was to deploy a satellite called the Tracking and Data Relay Satellite (TDRS). This satellite was designed to improve communication between ground stations and other orbiting spacecraft.
What are the basic elements of satellite communication systems?
Satellite communication is one particular example of wireless communication systems. Similar and maybe more familiar examples of wireless systems are radio and television broadcasting and mobile and cordless telephones. Systems of this type rely on a network of ground-based transmitters and receivers. They are commonly referred to as 'terrestrial' systems as opposed to satellite systems. these are the following important element in the satellite communication system 1.user 2.terrestrial system 3.earth station 4.repeaters user: user are located on the earth and they produces the baseband signal terrestrial system: terrestrial system can be switch or telephone line or network. the function of terrestrial system is to proceed the baseband signal to the earth station which are coming from the user earth station : Earth station is the common name for every installation located on the Earth's surface and intended for communication (transmission and/or reception) with one or more satellites. Earth stations include all devices and installations for satellite communications: handheld devices for mobile satellite telephony, briefcase satellite phones, satellite TV reception, as well as installations that are less familiar, eg VSAT stations and satellite broadcast TV stations. The term Earth station refers to the collection of equipment that is needed to perform communications via satellite: the antenna (often a dish) and the associated equipment (receiver/decoder, transmitter). repeaters: repeaters accept all the modulated R.F career in its uplink and amplifies back it to earth station in its down link
Transmitting a signal from a ground station to a satellite is called?
uplinking
What is the transmission from a satellite to an earth-based station?
The transmission from a satellite to an earth-based station is typically done using radio frequency signals. The satellite sends data to the ground station through a process called downlinking. The ground station receives the signals, processes the data, and distributes it to its intended destination.
Why in satellite communication power at radio station is higher than at satellite?
Because of economics. On the ground you an afford to use a big transmitter and a big antenna, while on the satellite both have to be smaller. Therefore most of the power and the gain happens at the ground station.
What is passive satellite?
A satellite that simply reflects light or radio waves transmitted from one ground station to another without any amplification or retransmission.
Uplinking and downlinking in TV broadcasting?
In up-link the portion of a communications link used for the transmission of signals from an earth terminal to a satellite platform.. a down link is the link from a satellite to a ground station..
What the name of the cement at the bottom of the house near the ground?
The cement at the bottom of the house near the ground is called the foundation. It provides support for the structure by transferring the load of the building to the ground.
What sends data to a satellite?
A transmitter sends data to a satellite, typically using radio waves. The data is transmitted from a ground station, a vehicle, or a mobile device to the satellite, which then relays the information to other satellites or back down to Earth.
What is uplink frequency?
Uplink frequency is a frequency that goes from the ground to the satellite. Downlink frequency goes from the satellite to the ground.
How do satellites transfer information to television?
satellites must transmit all their information to the earth down .satellites transmit information gathered by their sensors during each contact with the ground station. They contact the station using a large dish antennae which is situated on earth, at the site of the ground station. During the contacts between the satellite and ground station the satellites usually transmit information about the state of its various subsystems abd its position in space.
What is the Round Trip time of a RF signal for GEO satellites?
the speed of light = 299792458 m / sGEO (Geostationary Earth Orbit) = 35863000 m above the Earth's surfaceround trip time = 2*(35863000)/299792458 =0.239 sthe time needed for an RF signal to reach a GEO satellite and gets retransmitted back to a ground station on earth is approximately 240 milliseconds(assuming zero signal propagation/processing time in the satellite and equatorial ground station location with the same longitude as the satellite slot)
What is the significance of the curvature of the Earth in relation to satellite communication?
The curvature of the Earth is important for satellite communication because it determines the line of sight between the satellite and the ground station. Satellites need to be positioned at a certain height above the Earth to maintain line of sight and ensure effective communication. If the Earth were flat, satellites would not be able to maintain a consistent connection with ground stations around the globe.
Is satellite half duplex?
Half duplex means it communicates in one direction only. It either listens all the time, or it talks all the time. A half duplex satellite would be pretty useless. In reference to services like DirectTV, the user sees the satellite as half duplex, but for the satellite owner, it is full duplex communication to their ground station.
