Airlines warn of problems with 5G, asking to halt rollout (Page 4/4)
82-T/A [At Work] JAN 20, 07:45 AM

quote
Originally posted by williegoat:

I can tell you that my doorbell, which communicates by WiFi, has a severely degraded signal because of the fact that it is mounted to a steel frame.





That's kind of cool... is that just a front gate before the front door? Would love to see what the front looks like. I'm assuming "desert modern."
theogre JAN 20, 08:33 PM
Note:
This only covers 5G on C-band radio.
5G uses several radio bands including "mmWave" that may cause "health/safety problems."

And Telco delayed the turn on of this band for another 2 weeks

It affects ATT 5G Plus, Verizon 5GUW, and maybe some other phone plans using same networks.
T-Mobile and "sub operators" using T-Mobile's network doesn't use C-band and not apply to them.

(Even many expert saying cell phones are safe have doubts on "mmWave" phone use because No Studies for short or long term for this use. This band is similar to Body Scans use by TSA et al but scanners expose you in few seconds to few minutes max.)

see
what you need to know https://www.cnet.com/tech/m...at-you-need-to-know/
US 5G operators agree to delaying C-band deployment near airports https://itwire.com/5g/us-5g...t-near-airports.html
randye JAN 21, 02:35 AM
Here is a video that fully explains the issue with 5G
2.5 JAN 21, 11:17 AM

quote
Originally posted by randye:

Here is a video that fully explains the issue with 5G






Its like listening to todays news casters.
"Just say it with confidence"
hnthomps JAN 21, 12:32 PM

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Originally posted by blackrams:

As I understand the issue, the problem only exists when the airspace is under IMC conditions and an "instrument" approach is required utilizing the radar altimeter.

These conditions are not always present but, most of the time (I believe) commercial aircraft still use the same approaches. I never flew with a radar altimeter so, I don't know but, I can see this being a major issue to airlines, passenger and cargo getting where it's supposed to go if, this isn't addressed the right way. I'm not for or against 5G but, I am for safe landings. ATT and Verizon both state it's safe, the airlines and cargo carriers aren't so sure. The FAA put out a NOTAM (Notice to Airmen) to not use radar altimeters at airports where 5G is a problem.

This will become a big deal if, 5G causes the crash of one aircraft is all I'm saying.

Rams



Ron,

It is my understanding that the older radar altimeters are or may be subject to some issues with a 5G signal in the area. If that is the case, one wonders why the older aircraft have not been upgraded to a newer version that is compatible with 5G signals in the area (other than the airline not wanting to spend the upgrade cost). I do not know the cost associated with modifying an older radar altimeter or installing a newer version but what ever the cost is, it is potentially inconsequential compared to the cost of litigation against the airline if an aircraft with an older style radar altimeter remains in service. The old standby pressure altimeter can still be used but does lack the more absolute accuracy of the radar altimeter.

I do suspect that the 5G issue could affect the Decision Height on an instrument approach and might slow down approaches or cause diversions to alternate airports under certain conditions. I am also relatively certain that the Zero/Zero takeoff and landing capability of most commercial aircraft could suffer. There are a lot of ways around this potential issue but most of them require expenditure of significant cash and there is then the question as to who will pay for this.

Nelson
blackrams JAN 21, 12:58 PM

quote
Originally posted by hnthomps:


Ron,

It is my understanding that the older radar altimeters are or may be subject to some issues with a 5G signal in the area. If that is the case, one wonders why the older aircraft have not been upgraded to a newer version that is compatible with 5G signals in the area (other than the airline not wanting to spend the upgrade cost). I do not know the cost associated with modifying an older radar altimeter or installing a newer version but what ever the cost is, it is potentially inconsequential compared to the cost of litigation against the airline if an aircraft with an older style radar altimeter remains in service. The old standby pressure altimeter can still be used but does lack the more absolute accuracy of the radar altimeter.

I do suspect that the 5G issue could affect the Decision Height on an instrument approach and might slow down approaches or cause diversions to alternate airports under certain conditions. I am also relatively certain that the Zero/Zero takeoff and landing capability of most commercial aircraft could suffer. There are a lot of ways around this potential issue but most of them require expenditure of significant cash and there is then the question as to who will pay for this.

Nelson



Nelson,
Having never flown an aircraft with anything other than a barometric altimeter, I obviously don't have any experience with the newer instruments but, it's not hard for me to understand how this could affect safety. I also agree that the cost of one incident could or should outweigh any cost of upgrading an aircraft or possibly an entire fleet.
I have had to land in zero conditions one time and would rather not have to do that again. Weather can do some funny things that isn't always predicted.

Rams

[This message has been edited by blackrams (edited 01-21-2022).]

maryjane JAN 21, 06:38 PM
Weather Pilots can do some funny things that isn't always predicted.
What is the #1 cause of aircraft accidents?
blackrams JAN 21, 07:50 PM

quote
Originally posted by maryjane:

Weather Pilots can do some funny things that isn't always predicted.
What is the #1 cause of aircraft accidents?



Pilot Error
82-T/A [At Work] JAN 21, 09:04 PM

quote
Originally posted by maryjane:

Weather Pilots can do some funny things that isn't always predicted.
What is the #1 cause of aircraft accidents?




They ate the fish...