Micro earth stations as personal computer accessories
Abstract
The growth and services of a small company providing 60 cm satellite earth stations for low-cost thin route communications capability are described. The firm targeted its product at remote users with computer terminals or telex machines. Spread spectrum (SS) techniques and hardware were developed to accommodate the small dishes and permit 6/4 GHz links at low power. The SS methods involved direct sequence coding, wherein every data bit is transmitted as a sequence of symbols. The receiver processor performs a pattern recognition analysis on each message to identify one- or zero-bits. The configuration permitted 5 MHz bandwidths for each channel, and over 100,000 stations have been installed at $2500 each. The network architecture, packet switching techniques, and interfaces with microcomputers are outlined.
- Publication:
-
IEEE Proceedings
- Pub Date:
- November 1984
- Bibcode:
- 1984IEEEP..72.1526P
- Keywords:
-
- Communication Satellites;
- Data Transmission;
- Earth Terminals;
- Low Cost;
- Personal Computers;
- Satellite Networks;
- Cost Estimates;
- Data Processing Terminals;
- Message Processing;
- Microcomputers;
- Network Control;
- Packet Switching;
- Spread Spectrum Transmission;
- Switching Circuits;
- Communications and Radar