ITU-R QUESTION 109-1/4-2007
1530-1544 MHz 和1626.5-1645.5 MHz频段内移动卫星系统的全球海上遇险和安全系统要求

Global Maritime Distress and Safety System requirements for mobile-satellite systems operating in the bands 1 530-1 544 MHz and 1 626.5-1 645.5 MHz

ITU-R QUESTION 109-1/4-2007 发布历史

The ITU Radiocommunication Assembly considering a) that the requirements for the Global Maritime Distress and Safety System (GMDSS) entered into force on 1 February 1992 in accordance with the 1988 Amendments to the 1974 International Convention for the Safety of Life at Sea (SOLAS) concerning radiocommunications for the GMDSS; b) that multiple mobile-satellite systems designed for operation in the 1 530-1 544 MHz and 1 626.5-1 645.5 MHz bands are currently being developed and introduced; c) that the 1 530-1 544 MHz and 1 626.5-1 645.5 MHz bands, used for GMDSS distress and safety communications (see Table 15-2 of Appendix 15 to the Radio Regulations), are also available for other services; d) that currently the International Maritime Organization (IMO) has recognized only one provider of mobile-satellite communications (Inmarsat) for the GMDSS in these bands; e) that if multiple mobile-satellite systems operate in these bands, not all may elect to participate in the GMDSS; f) that, as a major element of the GMDSS, the satellite system provides for priority processing of distress alerts from ship earth stations to the coast earth stations; g) that coast earth stations provide for expeditious handling and delivery of distress messages to their associated rescue coordination centres; h) that, in these frequency bands, distress and safety receives the highest order of priority of communications in the maritime mobile-satellite service; j) that, in these frequency bands, any emission causing harmful interference to maritime mobile-satellite distress and safety communications is prohibited; k) that satellite systems participating in the GMDSS may provide a number of telecommunication services not associated with the GMDSS; l) that use of these bands for distress and safety purposes in the maritime mobile-satellite service is an important part of the GMDSS; m) that implementation of these telecommunication services under the GMDSS has been ongoing for some time.

ITU-R QUESTION 109-1/4-2007由国际电信联盟 IX-ITU 发布于 2007-01-01。

ITU-R QUESTION 109-1/4-2007 在中国标准分类中归属于: M35 卫星通信设备。

ITU-R QUESTION 109-1/4-2007的历代版本如下：

• 2007年01月01日 ITU-R QUESTION 109-1/4-2007 1530-1544 MHz 和1626.5-1645.5 MHz频段内移动卫星系统的全球海上遇险和安全系统要求

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标准号

ITU-R QUESTION 109-1/4-2007

发布日期

2007年01月01日

实施日期

废止日期

无

中国标准分类号

M35

发布单位

IX-ITU

适用范围

The ITU Radiocommunication Assembly considering a) that the requirements for the Global Maritime Distress and Safety System (GMDSS) entered into force on 1 February 1992 in accordance with the 1988 Amendments to the 1974 International Convention for the Safety of Life at Sea (SOLAS) concerning radiocommunications for the GMDSS; b) that multiple mobile-satellite systems designed for operation in the 1 530-1 544 MHz and 1 626.5-1 645.5 MHz bands are currently being developed and introduced; c) that the 1 530-1 544 MHz and 1 626.5-1 645.5 MHz bands, used for GMDSS distress and safety communications (see Table 15-2 of Appendix 15 to the Radio Regulations), are also available for other services; d) that currently the International Maritime Organization (IMO) has recognized only one provider of mobile-satellite communications (Inmarsat) for the GMDSS in these bands; e) that if multiple mobile-satellite systems operate in these bands, not all may elect to participate in the GMDSS; f) that, as a major element of the GMDSS, the satellite system provides for priority processing of distress alerts from ship earth stations to the coast earth stations; g) that coast earth stations provide for expeditious handling and delivery of distress messages to their associated rescue coordination centres; h) that, in these frequency bands, distress and safety receives the highest order of priority of communications in the maritime mobile-satellite service; j) that, in these frequency bands, any emission causing harmful interference to maritime mobile-satellite distress and safety communications is prohibited; k) that satellite systems participating in the GMDSS may provide a number of telecommunication services not associated with the GMDSS; l) that use of these bands for distress and safety purposes in the maritime mobile-satellite service is an important part of the GMDSS; m) that implementation of these telecommunication services under the GMDSS has been ongoing for some time.