As the WRC-23 approaches so the studies regarding AI9.1b (23cm and RNSS) are working towards conclusions. However the IARU is not content that all the operational aspects of the amateur service usage of the 1 240- 1 300 MHz band are being properly considered to develop an acceptable compromise for all concerned parties. You can find some more detail on the areas of concern in this discussion paper posted in the global IARU WRC23 web pages on this topic. See IARU Perspective on the AI9.1b Progress — September 2022.
23cm Band and WRC-23 — Discussion Document
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