What is the maximum range of satellite communication?
What is the maximum range of satellite communication?
Satellite communications use the very high-frequency range of 1–50 gigahertz (GHz; 1 gigahertz = 1,000,000,000 hertz) to transmit and receive signals.
Is satellite communication distance sensitive?
A feature of any satellite system is that the cost is distance insensitive, meaning that it costs about the same to provide a satellite communications link over a short distance as it does over a large distance. Thus a satellite communications system is economical only where the system is in continuous use…
What is the function of the antennas at a satellite station?
The antenna is the eye-catching, parabolic dish. The dish shape is designed to accurately direct and reflect incoming radio waves. However, the main purpose of the antenna is to amplify the incoming signal without adding significant noise.
What is ground segment in satellite communication?
All earth stations and network operation centers on the ground that comprise a particular satellite communications system or network. The ground segment can be connected to an end user’s equipment directly or over a terrestrial network.
What is the range of a satellite?
Medium Earth orbit (MEO) satellites are closer to Earth. Orbital altitudes range from 2,000 to 36,000 kilometres (1,200 to 22,400 mi) above Earth. The region below medium orbits is referred to as low Earth orbit (LEO), and is about 160 to 2,000 kilometres (99 to 1,243 mi) above Earth.
What is the orbital spacing of satellites?
They will make about a dozen orbits every day, and at the equator each orbit will be about 3000 km apart. Almost all satellites used for remoted sensing and GIS work are polar orbiters.
How many types of satellite communication are there?
three types
There are three types of communication services that satellites provide: telecommunications, broadcasting, and data communications. Telecommunication services include telephone calls and services provided to telephone companies, as well as wireless, mobile, and cellular network providers.
What is the length of the antenna?
The physical length of an antenna is the actual physical dimensions of the antenna. Consider a dipole antenna from the Antenna Toolbox™ with an operating frequency of 75 MHz and corresponding wavelength of 4 m.
What is antenna subsystem?
The antenna subsystem are complicated mechanical assemblies that are folded into dense packet for launch and must be deployed in large accurately alight assembly during orbit. Antenna receive the uplink signal and transmit the downlink signal .
What is space qualification?
To space-qualify is to take a product, process, or material and test it in order to prove that it will withstand the environment of space flight. This process can include the following tests and processes: parts screening. thermal test. vacuum test.
How is satellite distance measured?
From the known position of three satellites and the measured distances between them and the receiver, coordinates of receiver position can be calculated. The distances are determined by multiplying the travelling time of the radio signals by the speed of light.