ITU-R QUESTION 149-1/7-1993
月球远侧的频率利用

Frequency utilization on the far side of the Moon

ITU-R QUESTION 149-1/7-1993 发布历史

The ITU Radiocommunication Assembly considering a)that some radioastronomical and other scientific experiments are difficult, and perhaps impossible, to carry out on the surface of the Earth by reason of tropospheric and ionospheric absorption and scintillation;b)that the development of spacecraft will enable experiments to be carried out in the relatively quiet environment on the far side of the Moon;c)that in addition to the establishment of line-of-sight communication links for scientific and other purposes between the Earth and spacecraft, it may be necessary to establish links between stations on the far side of the Moon and other stations either on or visible from the Earth.

ITU-R QUESTION 149-1/7-1993由国际电信联盟 IX-ITU 发布于 1993-01-01。

ITU-R QUESTION 149-1/7-1993 在中国标准分类中归属于: M30 通信设备综合。

ITU-R QUESTION 149-1/7-1993的历代版本如下：

• 1993年01月01日 ITU-R QUESTION 149-1/7-1993 月球远侧的频率利用

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标准号

ITU-R QUESTION 149-1/7-1993

发布日期

1993年01月01日

实施日期

废止日期

无

中国标准分类号

M30

发布单位

IX-ITU

适用范围

The ITU Radiocommunication Assembly considering a)that some radioastronomical and other scientific experiments are difficult, and perhaps impossible, to carry out on the surface of the Earth by reason of tropospheric and ionospheric absorption and scintillation;b)that the development of spacecraft will enable experiments to be carried out in the relatively quiet environment on the far side of the Moon;c)that in addition to the establishment of line-of-sight communication links for scientific and other purposes between the Earth and spacecraft, it may be necessary to establish links between stations on the far side of the Moon and other stations either on or visible from the Earth.