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The ITU Radiocommunication Assembly, recognizing the adoption by the Plenipotentiary Conference of Resolution 154 (Antalya, 2006) on use of the six official languages of the Union on an equal footing, which instructed the Council and the General Secretariat on how to achieve the equal treatment of the six languages.
The organization of vocabulary work covering terms and definitions
systems having various Earth-to-space, space-to-space, and space-to-Earth links; that systems in the Earth exploration-satellite and meteorological-satellite services may utilize transmission
Protection criteria for radiocommunication links for manned and unmanned near-Earth** research satellites***
that frequency bands allocated to the Earth exploration-satellite and meteorological-satellite services may be shared by several systems, including systems operating in other service
Telecommunication Requirements for Manned and Unmanned Deep-Space Research
A more extended list of astrophysically important and often observed line frequencies, the “Recommended Rest Frequencies for Observed Interstellar Molecular Microwave Transitions”, is maintained by a group at the National Institute of Standards and Tech
Preferred frequency bands for radio astronomical measurements Question ITU-R 145/7
The electromagnetic spectrum is now so heavily used on Earth that much of its potential value for passive scientific research has already been seriously affected. Because of the general increase in radiocommunications, especially involving earth satelli
Protection of frequencies for radioastronomical measurements in the shielded zone of the Moon
that many of the most fundamental astronomical advances made in the past five decades, (e.g. the discovery of radio galaxies, quasars, and pulsars, the direct measurement of neutral hydrogen, the direct measurement of distances of certain external gala
Protection criteria used for radio astronomical measurements (Question ITU-R 145/7)
The ITU Radiocommunication Assembly, considering that the ITU Convention includes among the functions of Radiocommunication Study Groups the study of technical, operational and procedural matters to be considered by World and Regional Radiocommunication Conferences (CV 156).
Study of regulatory/procedural matters
that permissible levels of interference for systems operating in the Earth exploration-satellite and meteorological-satellite services should be based on performance objectives for those services
Preferred Frequency Bands for Deep-Space Research in the 1-40 GHz Range
that, although on-board data compression techniques could allow a reduction of symbol rates, it may be necessary to use error correcting coding techniques to achieve the performance objectives thus resulting in increased bandwidths
Sharing Considerations Relating to Deep-Space Research
The long-term and short-term interference criteria are determined using equations (3) and (6) with values for M and n determined in the analysis of performance achievable in the absence of inter-system interference.
Preferred Frequency Bands for Deep-Space Research in the 40-120 GHz Range
This Annex presents a method of calculating attenuation, noise temperature, and link performance, based on ITU-R Recommendations concerning the characteristics of radio wave propagation. The method can be extended to include equipment characteristics.
(WITHDRAWN) Protection Criteria and Sharing Considerations Relating to Deep-Space Research - Section 2E - Space Research
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