Satellite sound broadcasting to fixed, portable and mobile radio receivers
Abstract
Direct broadcasting by satellite (DBS) of television signals to the home has received much attention recently; less attention has been paid to sound-only (i.e., radio) broadcasting from satellites. This Report reviews the present range of terrestrial sound broadcasting and explores the possible scope and technical feasibility of using satellites. Satellite broadcasting of sound programs to receivers of all types, including portable and mobile, situated in national or regional areas appears technically practicable, but there are problems to be overcome. The most significant are regulatory in nature, in particular there is no appropriate frequency allocation. A new system possibility is presented using digital modulation which has a number of advantages, including potential for good spectrum utilization. Various technical details require further study to produce a system of optimum performance, flexibility and spectrum efficiency.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1985
- Bibcode:
- 1985STIN...8627514S
- Keywords:
-
- Broadcasting;
- Mobility;
- Portable Equipment;
- Radio Receivers;
- Spacecraft Communication;
- Digital Techniques;
- Feasibility Analysis;
- Frequency Assignment;
- Spectrum Analysis;
- Communications and Radar