WRC 2027 Agenda Item Details

Agenda Item: Agenda Item 1.5
Resolution(s): Resolution 14 (WRC-23)
Description of work:

This agenda item is to consider regulatory measures and their implementability to limit the unauthorized operations of non-GSO ES in the FSS and MSS and associated issues related to the service area of non-GSO satellite systems in the FSS and MSS.

The ITU-R is invited to:

  1. study regulatory measure to limit the unauthorized operations of non-GSO FSS and MSS earth stations in the Earth-to-space direction
  2. studies on regulatory measures that take account of some administrations wishing to exclude operation within their territory without adversely affecting the provision of services in the rest of the non-GSO system's service area

WRC-27 is invited to consider the results of the above studies and take necessary actions, as appropriate.


There was some controversy about this agenda item during WRC-23 as initial proposals considered both the Earth-to-space and also the space-to-Earth direction. Progress was made easier by limiting the agenda item to the Earth-to-space direction, where operation of ES is subject to Article 18 which species the requirements of licensing the operation of stations within a given territory

Lead Working Party(s): WP 4A
Involved Working Parties: WP 1B, WP 4C
How Visualyse products can help:

Visualyse Professional can be used to model unauthorised operation of a non-GSO FSS or MSS system including satellite and ES and be used to identify the powers levels that could be detected as part of a spectrum usage monitoring campaign.

How Transfinite consultants can help:

We can undertake studies of the impact of unauthorised operation including deriving power levels that could be detected as part of a spectrum usage monitoring and regulatory analysis including representation at ITU-R meetings.

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