Gateways - Hubs White Papers
Interactive VSAT
Overview Low cost business terminals with small antennas (generally less than 2 meters in diameter) are often termed Very Small Aperture Terminals (VSATs). These are usually perceived as being two way data terminals, though strictly speaking many of the systems used for data broadcast are really one-way VSATs. Taking the USA as an example, approximately half of all installed VSATs are only used for one way data links. As terminal technology advances, the size of the antenna required to achieve a particular link quality (bit error rate) decreases. A class of terminals smaller than VSATs is now available; these are termed Ultra Small Aperture Terminals (USATs). It must always be remembered, however, that as antenna size decreases, the antenna beam widens and that a point is rapidly reached when there is no further advantage in decreasing antenna size because of increased interference with other.
| Publisher | Microcom Systems Ltd | File Format | HTML |
|---|---|---|---|
| Date Published | January 1995 | Downloads | 20 |
| Format | White Papers | ||
| Topics | |||
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