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Equivalent power-flux density limits validation in accordance with Resolution 85 (WRC-03)

​Resolution 85 (WRC-03) requires the Bureau to verify compliance of frequency assignments of non-geostationary fixed satellite service  systems with the single-entry equivalent-power flux density (EPFD) limits in Tables 22-1A, 22-1B, 22-1C, 22-1D, 22-1E, 22 2 and 22-3 of Article 22 of the Radio Regulations and to determine the coordination requirements under Nos. 9.7A and 9.7B.

In order to perform this regulatory examination, the Bureau in collaboration with two software companies developed a validation software package to calculate EPFD levels produced by non-GSO satellite systems.

Final version is available to administration at space software web-page: http://www.itu.int/en/ITU-R/software/Pages/epfd.aspx

Details of the  EPFD validation process are provided in Circular Letter CR/414.

For the User Guide of EPFD validation software package please refer to the following document: User Guide.pdf

An EPFD Validation tool Support Forum is also available at http://groups.itu.int/epfd, offering a user guide, FAQs  as well as exchanges and sharing of experience by users in the form of posted messages.

The results of RR Article 22 EPFD limits examination as well as an input data required for examination can be found here.

Current EPFD Validation Software and XML-mask format is implementing the methodology of Recommendation S. 1503-2. New version of ITU-R Recommendation S. 1503-3  was approved in January 2018 and yet to be implemented.

 

Related documents


Circular Letter CR/414

Recommendation ITU-R S.1503-2 “Functional description to be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite system networks with limits contained in Article 22 of the Radio Regulations”

Recommendation ITU-R S.1503-3 “Functional description to be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite system networks with limits contained in Article 22 of the Radio Regulations”

The description of XML-format for PFD and EIRP masks in accordance with Recommendation ITU-R S.1503-2, Part B

Workshop on non-geostationary satellite issues, 21st April 2016

Director’s Report to WRC-15:
      Addendum 1 to Doc. WRC15/4, Section 2.2.2.4
      Revision 1 to Doc. WRC15/4(Add.2), Section 3.2.2.4
      Addendum 1 to Doc. WRC15/4(Add.2)