Having gone through each of the SGs giving examples of some of their key areas of current study, want to conclude by spending a few minutes focussing on the output products from the SGs.
Firstly, the SGs are responsible for preparing the technical bases for the forthcoming WRC. Many of the topic areas discussed are conference-related and in such cases the responsible SG must provide appropriately agreed text as a contribution to the report prepared by the CPM – the Conference Preparatory Meeting.
Also, many of the topic areas are the subject of draft or revised ITU-R Recommendations.
Thirdly, an important product of the SGs are the handbooks. These are essentially tutorial in nature and make reference to Recommendations and how to apply them but usually with considerably more background information to help the user understand the principles involved.