It is more sensitive noise. I did not say it was impossible though to design radar with a higher noise floor in mind. Like the main reason this is problem is not really Boeing's or Airbus's fault. It's only now the FAA went wait a minute when they could have been looking at this years ago since the FCC did announce this quite a bit ago now. The allocation here in the US is closer than to other countries so spurious emissions from 5G equipment and higher order harmonics could possibly be larger issue.