| タイトル | Potential markets for a satellite-based mobile communications system |
| 本文（外部サイト） | http://hdl.handle.net/2060/19760019170 |
| 著者（英） | Jamieson, W. M.; Peet, C. S.; Bengston, R. J. |
| 著者所属（英） | Battelle Columbus Labs. |
| 発行日 | 1976-04-16 |
| 言語 | eng |
| 内容記述 | The objective of the study was to define the market needs for improved land mobile communications systems. Within the context of this objective, the following goals were set: (1) characterize the present mobile communications industry; (2) determine the market for an improved system for mobile communications; and (3) define the system requirements as seen from the potential customer's viewpoint. The scope of the study was defined by the following parameters: (1) markets were confined to U.S. and Canada; (2) range of operation generally exceeded 20 miles, but this was not restrictive; (3) the classes of potential users considered included all private sector users, and non-military public sector users; (4) the time span examined was 1975 to 1985; and (5) highly localized users were generally excluded - e.g., taxicabs, and local paging. |
| NASA分類 | SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING |
| レポートNO | 76N26258
NASA-CR-148194
BCL-OA-TFR-76-4 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/185480 |
