On the Feasibility of Direct Emergency Spot Broadcast Service from Satellite to Ordinary Ground Receivers.
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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It is feasible with current technology to provide B-grade broadcast service coverage area from a satellite in circular 24 hr or elliptical 12 hr orbit to home receivers, without any unusual receiving antenna, in any standard broadcast band for such signals, utilizing on the order of 10 Kw of power and 1000 sq m aperture antenna. Methods are suggested for increasing antenna aperture and prime power by an order of magnitude each, within payload weight constraints, to reach A-grade signal levels. By using modular construction the satellite can be engineered to fail gracefully in the face of natural or manmade environmental hazards. Possible uses include emergency spot broadcasting to areas devastated by flood or storm, entertainment for fishing fleets or armed forces abroad, and spot propaganda broadcast. Author
- Unmanned Spacecraft
- Radio Communications