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EPFD examination support

Welcome to support page dedicated to Equivalent-Power Flux Density limits examination under Resolution 85 (Rev. WRC-23).

For any inquiry relating to EPFD examination software you may contact Radiocommunication Bureau using support e-mail.

Please also consult Questions & Answers section to review frequently asked questions relating to Recommendation ITU-R S. 1503 specific topics or seek support.


What’s new

  • November 2026
    • Question & Answers page was replaced by Frequently Asked Questions and Contact Form which removes the requirement to register to post the question.

  • October 2026
    • Release of new test version of radians test version (S.1503-2 calculator) – available from Resources page.
    • Release of new version of EPFD Static (v. 1.8.13)
    • Release of new version of EPFD Prepare (v. 1.8.4)
    • Release of new version of radians.vis (v. 1.0.3)