> <i>"“The primary frequency allocation in P band is for huge SOTR [single-object-tracking radars] Americans use to detect incoming intercontinental ballistic missiles. That was, of course, a problem for us,” Scipal says. To get an exemption from the ban on space-based P-band radars, ESA had to agree to several limitations, the most painful of which was turning the Biomass radar off over North America and Europe to avoid interfering with SOTR coverage."</i><p><a href="https://www.technologyreview.com/2025/04/18/1115388/esa-airbus-biomass-mission-measure-earths-forests-from-orbit/" rel="nofollow">https://www.technologyreview.com/2025/04/18/1115388/esa-airb...</a><p>I guess that's referring to things such as these?<p><a href="https://en.wikipedia.org/wiki/PAVE_PAWS" rel="nofollow">https://en.wikipedia.org/wiki/PAVE_PAWS</a> (<i>"...The radar operates in the UHF band between 420 - 450 MHz..."</i>)