23cm band and Sat-Nav Coexistence: ITU‑R WP4C Studies
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<p>These results have been developed based the ITU‑R defined receiver protection level for the GALILEO RNSS. For the narrow band modes this is ‑134.5dBW and for the wideband modes is ‑140dBW/MHz. In addition, measurement campaigns have shown that an improvement in the compatibility potential can be seen if the amateur signals avoid the centre portion of the GALILEO receiver passband.</p>
<p>Of course the studies cannot take into account every possibility that might mitigate the problem (e.g clutter, terrain blocking etc.) but it is clear that the potential for interference is considerable.</p>
<p>The IARU is working hard to ensure that the amateur service can continue to develop in this band and allow all the amateur applications in use today to continue. However, given the heavy spectrum occupancy of the band by the various RNSS systems it is evident that proposals will come calling to restrict our ability to operate in certain parts of the band and at the power levels possible today. IARU is totally engaged in the discussion of these considerations and these will continue within ITU‑R (and other regional bodies).</p>
<p>The IARU summary report on the WP4C meeting can be found at<br />
<a href=)
Link to the full draft study https://storage.iaru-r1.org/index.php/s/BtpxWjL7La7syr7
Source IARU Region 1 https://iaru-r1.org/
m5aka
AMSAT-UK
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 100vw, 593px»></a></p>
<p>These results have been developed based the ITU‑R defined receiver protection level for the GALILEO RNSS. For the narrow band modes this is ‑134.5dBW and for the wideband modes is ‑140dBW/MHz. In addition, measurement campaigns have shown that an improvement in the compatibility potential can be seen if the amateur signals avoid the centre portion of the GALILEO receiver passband.</p>
<p>Of course the studies cannot take into account every possibility that might mitigate the problem (e.g clutter, terrain blocking etc.) but it is clear that the potential for interference is considerable.</p>
<p>The IARU is working hard to ensure that the amateur service can continue to develop in this band and allow all the amateur applications in use today to continue. However, given the heavy spectrum occupancy of the band by the various RNSS systems it is evident that proposals will come calling to restrict our ability to operate in certain parts of the band and at the power levels possible today. IARU is totally engaged in the discussion of these considerations and these will continue within ITU‑R (and other regional bodies).</p>
<p>The IARU summary report on the WP4C meeting can be found at<br />
<a href=)
Link to the full draft study https://storage.iaru-r1.org/index.php/s/BtpxWjL7La7syr7
Source IARU Region 1 https://iaru-r1.org/
m5aka
AMSAT-UK
Powered by WPeMatico