Many people do not think about the series of technical processes that must be completed in order to connect to the internet or use a mobile phone. Satellite communications systems are complicated networks. They require transmitters, satellites, receivers, dishes, and lots of other equipment in order to function properly. Following are some terms related to satellite systems that will help you understand how these complex communication devices operate.
Antenna Gain – This is an increase in the receiving capabilities of an antenna due to the location of a satellite or the direction of its signal. High speed internet, for instance, needs to have sufficient antenna gain in order to functional acceptably.
Bandwidth – This refers to the amount of information that a particular frequency or range of frequencies can handle. A low bandwidth connection will take longer to download content or buffer a live program.
Broadband – An increased bandwidth system. Broadband is a fairly general term and no specific regulations are in effect for what can and cannot be considered a broadband system. Ideally, broadband means a higher phone and internet speed.
Crosslink – The term referring to a communication path from one satellite to another.
Downlink – A communication path from a satellite to the earth. The place on earth that receives the signal is a terminal. Signals can be sent almost anywhere. They could be sent to a dish next to your home or to one located on a military ocean vessel.
Footprint – A portion of earth that has adequate antenna gain. This means that that area is capable of using satellite powered phone and internet.
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Satellites relay information to and from systems to provide images on a TV, for example. Homeowners can mount dishes on their roofs to obtain signals from satellites in the sky. Via a receiver, images are transmitted to the television, providing a wide array of channels to choose from.
Satellite communication companies provide telecommunications services utilizing satellites to transmit radio, TV, phone, and other wireless signals to industrial, commercial, and residential customers. Customers can include large entities, such as the military, or smaller clients such as small businesses and start-ups. Residential service is a big part of satellite communications services as well, allowing homeowners to hook up to the Internet seamlessly, download images, and transmit data.
Among their many services, satellite communications providers offer solutions for clients regarding antennas and complete the end-to-end satellite links, with a focus on areas like consulting, design, customer support, installation, and maintenance. Satellite communications systems can be the backbone of direct broadcast satellite, Internet service providers (ISPs), streaming media, live cable TV, and data transfer.
They may provide mobile and fixed connectivity services, along with antenna and satellite communication service and installation. They may also sell products used in conjunction with satellite dishes, TV and computer systems, and radio. One company may focus on residential cable services, while another may focus on larger clients like the military, government, or even NASA.
Satellites have been important fixtures in space since the 1950s. They’ve aided in research, defense, complex radio communications, and in most recent years have been crucial to operations of mobile phones and TVs, global positioning systems, and high-speed Internet access.