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Electromagnetic Compatibility between Marine Automatic Identification and Public Correspondence Systems in the Maritime Mobile VHF Band; Technical rept
| 题名： | Electromagnetic Compatibility between Marine Automatic Identification and Public Correspondence Systems in the Maritime Mobile VHF Band; Technical rept |
| 作者： | Sole, R. L.; Bedford, B.; Patrick, G. |
| 关键词： | Mobile communication systems; Telecommunications; Coast guard; Marine transportation; Radio communication; Waterways(Transportation); Transponders |
| 摘要： | The Coast Guard funded the National Telecommunications and Information Administration (NTIA) to perform electromagnetic compatibility (EMC) tests between an ITU-R M. 825-3 (Characteristics Of a Transponder System Using Digital Selective Calling Techniques for Use with Vessel Traffic Services and Ship-to Ship Identification) based Automatic Identification System (AIS) operating on 12.5 kHz channels and Public Correspondence (PC) Systems operating on 25 kHz channels. The tests were performed between January 17-28, 2000 in and around an AIS base station communications tower located at Point Ala Hache, La. by NTIA, SETA Corporation, and Coast Guard personnel. NTIA recommends that the Coast Guard consider: (1) Developing an AIS frequency coordination plan for the lower Mississippi River for the PC and AIS systems that will ensure mutually compatible and satisfactory operations. (2) Performing additional EMC testing between ship-to-ship AIS and PC operations. (3) Performing EMC tests between PC systems and ITU-R. M 1371 compliant AIS equipment when such equipment becomes available, (4) Pursuing necessary regulatory changes to improve AIS and PC operations in the same geographical area (e.g., including a12.5 kHz channelization plan for both AIS and PC operations and developing appropriate receiver standards). |
| 总页数： | 35p |
| 报告类型： | 科技报告 |
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