And here are some actual test results:
https://www.rtca.org/wp-content/uploads/2020/10/SC-239-5G-Interference-Assessment-Report_274-20-PMC-2073_accepted_changes.pdf
People who understand radios don't think much of that report or the
similar AVSI one. If its claims were true, planes would be falling out of
the sky before anyone turned on a C band radio. See, for example:
https://www.fiercewireless.com/5g/rational-decisions-needed-c-band-and-altimeters-industry-voices-rysavy
Look, we understand that altimeters are safety critical equipment. We
also understand that after the FCC's little experiment with
self-regulation at Boeing, they're ultra cautious now. On the other hand,
you probably saw that after a string of apocalyptic warnings earlier this
year about shutting down all air traffic the FAA said, well, actually, the
altimeters in every plane flying commercial routes are OK.
Five years ago everyone knew that C band was coming. A reasonable
response would have been for the FAA to work with the FCC to figure out
which altimeters might be affected (old cruddy ones, we now know), and
come up with a plan and schedule to replace them. If the telcos had to
pay some of the costs, they would have grumbled but done it. If the
replacement schedule weren't done by now, they could live with that, too,
so long as there were a clear date when it'd be done.
Instead the FAA stuck their fingers in their ears and said no, nothing can
ever change, we can't hear you. Are you surprised the telecom industry is
fed up?
Regards,
John Levine, jo...@taugh.com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. https://jl.ly
