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Background – EPFD Support

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Background

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Questions & Answers

Resources

About ITU

Radiocommunication

Standardization

Development

Background

Resolution 85 (Rev. WRC-23) 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 in 2016 a validation software package to calculate EPFD levels produced by non-GSO satellite systems.

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

Current EPFD Validation Software and XML-mask format is implementing the methodology of Recommendation S. 1503-2.

New version of ITU-R Recommendation S. 1503-4 was approved end of 2023 and yet to be implemented

EPFD Validation Software

EPFD Validation Software is distributed within Space Software GIBC Package

User Guide for EPFD validation software

Click here to open User Guide for EPFD validation software package

List of data items required for EPFD examination

Detailed List of Appendix 4 data items required for EPFD examination

The results of EPFD limits validation

The results of RR Article 22 EPFD limits examination for non-GSO systems and their input data

Related documents

Circular Letter CR/414

Recommendation ITU-R S.1503-2

Recommendation ITU-R S.1503-4

Related Conference decisions

Doc. WRC15/354

Minutes of the seventh plenary meeting, Doc. WRC15/504

Doc. WRC15/398

Minutes of the eighth plenary meeting, Doc. WRC15/505

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