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Don't The FCC set maximum levels of noise a device can emit and minimum levels of noise other devices must tolerate. Unless the antennas are way above their li

Don't The FCC set maximum levels of noise a device can emit and minimum levels of noise other devices must tolerate. Unless the antennas are way above their limits this shouldn't be an excuse...

p_l 5y ago
In a way, this is a case of disagreement on both accepted levels of noise generated by 5G equipment, and how big the noise is in reality, with FCC having very strong lobby to push through, while FAA having very strict safety requirements (and extra reason to avoid cutting corners after the MCAS fiasco)
- LatteLazy 5y ago
  But the FAA don't set the noise tolerance limit, the FCC do. And so far, despite weeks of work, no one has shown anyone is breaking the noise generation limit. What confuses me here is exactly the FAAs safety requirements: they've said there could be a problem. But they've also not done any research to assess it. And they're not grinding any planes. So they apparently aren't that bothered by safety!?
  - p_l 5y ago
    Noise tolerance limits for SOHO gear or telcos are completely different to requirements on FMCW radar transmitting a signal across all of 200MHz band... There is ongoing body of work, done internationally, for several years now. They aren't grounding planes because there's no operational need to right now - worst case expect a lot of canceled flights and maybe Southwest going bust as their scheduling flaps too much (also, USA is a bit lucky in having lower need for Category II or worse approaches than some other countries). And as someone else mentioned in comments, there are already issues cropping up with malfunctioning 5G transmitters despite 400MHz guard bands...
  - theYipster 5y ago
    Your confused perhaps because your assertion about research done to assess the problem is wrong. Here is the industry research, presented two years ago: https://www.rtca.org/wp-content/uploads/2020/10/SC-239-5G-Interference-Assessment-Report_274-20-PMC-2073_accepted_changes.pdf https://www.rtca.org/wp-content/uploads/2020/10/SC-239-5G-In... Note the telco industry have attacked and politicized the research, but they have not offered up their own data to back up their claims. The aviation industry is on much stronger ground here. And as another commenter put it so eloquently, the aviation industry assumes something is dangerous until proven safe, not that something is safe until proven dangerous.

Don't The FCC set maximum levels of noise a device can emit and minimum levels of noise other devices must tolerate. Unless the antennas are way above their limits this shouldn't be an excuse...

p_l 5y ago

In a way, this is a case of disagreement on both accepted levels of noise generated by 5G equipment, and how big the noise is in reality, with FCC having very strong lobby to push through, while FAA having very strict safety requirements (and extra reason to avoid cutting corners after the MCAS fiasco)

LatteLazy 5y ago
But the FAA don't set the noise tolerance limit, the FCC do. And so far, despite weeks of work, no one has shown anyone is breaking the noise generation limit. What confuses me here is exactly the FAAs safety requirements: they've said there could be a problem. But they've also not done any research to assess it. And they're not grinding any planes. So they apparently aren't that bothered by safety!?
- p_l 5y ago
  Noise tolerance limits for SOHO gear or telcos are completely different to requirements on FMCW radar transmitting a signal across all of 200MHz band... There is ongoing body of work, done internationally, for several years now. They aren't grounding planes because there's no operational need to right now - worst case expect a lot of canceled flights and maybe Southwest going bust as their scheduling flaps too much (also, USA is a bit lucky in having lower need for Category II or worse approaches than some other countries). And as someone else mentioned in comments, there are already issues cropping up with malfunctioning 5G transmitters despite 400MHz guard bands...
- theYipster 5y ago
  Your confused perhaps because your assertion about research done to assess the problem is wrong. Here is the industry research, presented two years ago: https://www.rtca.org/wp-content/uploads/2020/10/SC-239-5G-Interference-Assessment-Report_274-20-PMC-2073_accepted_changes.pdf https://www.rtca.org/wp-content/uploads/2020/10/SC-239-5G-In... Note the telco industry have attacked and politicized the research, but they have not offered up their own data to back up their claims. The aviation industry is on much stronger ground here. And as another commenter put it so eloquently, the aviation industry assumes something is dangerous until proven safe, not that something is safe until proven dangerous.