Exclusive: What is VSAT.? In which places VSAT mostly used.?
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26-11-2014, 09:59 AM
(This post was last modified: 26-11-2014 10:05 AM by Sgokul gp.)
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What is VSAT.? In which places VSAT mostly used.?
Answer :
Short for Very Small Aperture Terminal, an earthbound station used in satellite communications of data, voice and video signals, excluding broadcast television. A VSAT consists of two parts, a transceiver that is placed outdoors in direct line of sight to the satellite and a device that is placed indoors to interface the transceiver with the end user's communications device, such as a PC. The transceiver receives or sends a signal to a satellite transponder in the sky. The satellite sends and receives signals from a ground station computer that acts as a hub for the system. Each end user is interconnected with the hub station via the satellite, forming a star topology. The hub controls the entire operation of the network. For one end user to communicate with another, each transmission has to first go to the hub station that then retransmits it via the satellite to the other end user's VSAT. VSAT can handle up to 56 Kbps. http://www.webopedia.com/TERM/V/VSAT.html A very small aperture terminal (VSAT), is a two-way satellite ground station or a stabilized maritime VSAT antenna with a dish antenna that shorter than 3 meters. The majority of VSAT antennas range from 75 cm to 1.2 m. Data rates range from 4 kbit/s up to 4 Mbit/s; some upgraded modules can even reach a max downlink of up to 16 Mbit/s. VSATs access satellites in geosynchronous orbit to relay data from small remote earth stations (terminals) to other terminals (in mesh topology) or master earth station "hubs" (in star topology). VSATs are used to transmit narrowband data (e.g., point-of-sale transactions using credit cards, polling or RFID data, or SCADA), or broadband data (for the provision of satellite Internet access to remote locations, VoIP or video). VSATs are also used for transportable, on-the-move (utilising phased array antennas) or mobile maritime communications. http://en.wikipedia.org/wiki/Very-small-...e_terminal |
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The following 2 users Like Sgokul gp's post: SENTHIL KUMAR, SHFARUN |
26-11-2014, 10:23 PM
Post: #2
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RE: What is VSAT.? In which places VSAT mostly used.?
Good update bro
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The following 1 user Likes Sajee's post: SENTHIL KUMAR |
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