| 摘要 |
The CCIR,
CONSIDERING
(a) that manned deep-space research has unique requirements for extreme reliability of telecommunications so as to ensure safety of life;
(b) that both manned and unmanned deep-space research have unique requirements for extreme reliability of telecommunications so as to ensure successful reception of valuable scientific data collected at particular critical times, and that repeat transmission of these data is often not possible;
(c) that the extreme sensitivity of deep-space earth stations results in unusually low levels of permissible interference;
(d) that some terrestrial and earth stations in other services have sufficient e.i.r.p. to cause interference to stations in deep space;
(e) that sharing studies and protection criteria have been presented in Report 685 for deep-space research earth stations and for stations in deep space;
(f) that protection criteria for relay stations in earth orbit, used for deep-space research, have not yet been determined and are not considered in Report 685 |
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