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A comment on FAA says 5G could impact radio altimeters on most Boeing 737s. Parent comment

Re:FAA says 5G could impact radio altimeters on most Boeing ... by dataflow on Wednesday February 23, 2022 @06:13PM (#30447972)
Yeah so my question is (how) did they not see this problem last year? What made it so unpredictable until Feb 2022?
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Re:FAA says 5G could impact radio altimeters on most Boeing ... by Wiseacre on Wednesday February 23, 2022 @06:24PM (#30448104)
Here's an article from 2020 [0]. I'm sure plenty of this prior research was classified.

0 - https://www.defensenews.com/2020/12/21/the-military-is-scram...

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Re:FAA says 5G could impact radio altimeters on most Boeing ... by mulmen on Wednesday February 23, 2022 @06:21PM (#30448073)
They did know. Both the FAA and the FCC knew.
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Re:FAA says 5G could impact radio altimeters on most Boeing ... by dataflow on Wednesday February 23, 2022 @06:47PM (#30448340)
Yeah so we circle back to my original question: What did they expect would happen instead? Why didn't they do anything? The problem wasn't going to just disappear randomly right?
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Re:FAA says 5G could impact radio altimeters on most Boeing ... by tjohns on Wednesday February 23, 2022 @07:54PM (#30448946)
Two different government agencies with different incentives.

The FCC really wants to proceed with the 5G rollout. The FAA really wants to make sure aircraft don't crash. They do not agree with each other on this, so they each proceeded in the only way they administratively could...

The FCC continued with the 5G rollout, the the FAA recently banned use of approaches requiring a radio altimeter until each individual model can get recertified or upgraded - and the public will just have to tolerate additional travel delays for the next couple years as a result.

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Re:FAA says 5G could impact radio altimeters on most Boeing ... by mulmen on Wednesday February 23, 2022 @08:58PM (#30449397)
FAA issued NOTAMs. They don’t have the authority to stop the FCC from doing anything.

FCC was warned by industry groups but dismissed the warnings.

We’re watching the process play out.

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