What do you think about this airline vs 5G brouhaha?

Tom Beecher beecher at beecher.cc
Wed Jan 19 16:13:05 UTC 2022

Altimeter Band : 4.2Ghz - 4.4Ghz

VZ and AT&T agreed (long ago) to reduce power and stay inside 3.7Ghz -
3.98Ghz once the full deployment was done, staying 200MHz away from

In Japan, they have been running 5G for over a year now up to 4,1Ghz, and
restarting again at 4.5Ghz. Only 100MHz of guard on either side of the
altimeter band. I think EU is close-ish, but not totally sure.

I can't find a single report or study that has shown radio altimeter
issuers in Japan since 5G was turned on there.

Aside from a single study which a LOT of smart people have called out flaws
in, there isn't much out there that proves there WILL be interference with
altimeters, just a lot of FUD that says it MIGHT. I dunno what the angle
is, but this has turned into a shitshow.

On Tue, Jan 18, 2022 at 3:32 PM Michael Thomas <mike at mtcc.com> wrote:

> I really don't know anything about it. It seems really late to be having
> this fight now, right?
> Mike
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