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Boeing, Airbus executives urge delay in U.S. 5G wireless deployment
oeing (BA.N) Chief Executive Dave Calhoun and Airbus Americas (AIR.PA) CEO Jeffrey Knittel on Monday urged the Biden administration to delay planned deployment of new 5G wireless services, saying it could harm aviation safety. (www.reuters.com) 기타...
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FAA is wrong here. Trying to get a pass for sloppy altimeter filtering with adjacent bands THAT ARE NOT ASSIGNED TO AVIATION is poor practice.
Lobbyist did a job on FCC rule making and frequency assignment for the Cell companies If the FCC stood their ground we would be here today.
I wish someone with the detailed technical knowledge would explain it is not all of 5G that is the problem. If I understand correctly, there are over 7 frequency bands where 5G is planned to be deployed. There are only 2 of the frequency bands that are the problem as the FCC allowed them to be to close and slightly over lap with frequencies assigned to aviation functions. The other problem the FCC lowered the standard for 5G of frequency bleed-over. They need to keep the cellphone systems engineered as clean and frequency tight as they require aviation systems. The biggest problem is for Verizon who owns most the the frequency space across the country that is next to the Aviation spectrum assignment. For sure 5G should be fixed and specific 5G frequency towers should be prohibited within 15-20 miles of aviation systems, navaids etc., approach paths and away from airports. Good news for the 5G cellphones functions there are alternative spectrum assignment they can use that will not interfere with aviation.
I wish someone with the detailed technical knowledge would explain it is not all of 5G that is the problem. If I understand correctly, there are over 7 frequency bands where 5G is planned to be deployed. There are only 2 of the frequency bands that are the problem as the FCC allowed them to be to close and slightly over lap with frequencies assigned to aviation functions. The other problem the FCC lowered the standard for 5G of frequency bleed-over. They need to keep the cellphone systems engineered as clean and frequency tight as they require aviation systems. The biggest problem is for Verizon who owns most the the frequency space across the country that is next to the Aviation spectrum assignment. For sure 5G should be fixed and specific 5G frequency towers should be prohibited within 15-20 miles of aviation systems, navaids etc., approach paths and away from airports. Good news for the 5G cellphones functions there are alternative spectrum assignment they can use that will not interfere with aviation.
This almost happened with Light Speed and GPS got caught before it happened. Was being pushed by politicians as I think back and almost went on line. FCC didnt do there job on that one and looks the same for this one too. One crash of and AC and who will pay for it? The survivors of the dead.
It isn’t all 5G that is the problem.
If they were deploying LTE in the C-Band spectrum we would still have the same problem.
The FAA says that cell towers are too powerful and might interfere with radio altimeters.
It wasn’t a problem before because C-Band originated from satellites 23,000 miles up and needed big dishes to amplify the signal to something usable. The signal was overall weaker.
The FAA is going to need to tell the manufacturers of the altimeters to spend the extra few bucks and put better RF filters in so they can block the signals in adjacent bands.
If they were deploying LTE in the C-Band spectrum we would still have the same problem.
The FAA says that cell towers are too powerful and might interfere with radio altimeters.
It wasn’t a problem before because C-Band originated from satellites 23,000 miles up and needed big dishes to amplify the signal to something usable. The signal was overall weaker.
The FAA is going to need to tell the manufacturers of the altimeters to spend the extra few bucks and put better RF filters in so they can block the signals in adjacent bands.
This is not just an "airliner" issue. It impacts all segments of aviation including the military. Flying MEDEVAC helicopters to an accident scene on a freeway, or landing at small hospitals and clinics in remote areas, my RADALT is a very important aid. Enroute at low level, I rely on TAWS to avoid CFIT. 5G will impact these flights day or night, VFR or IFR.
https://www.youtube.com/watch?v=942KXXmMJdY