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5G could interfere with radio altimeters on most Boeing 737s, FAA says
FAA is warning that 5G emissions could interfere with radio altimeters in most Boeing 737 jets and impact airplane landings.The Federal Aviation Administration's directive affects all Boeing 737 family jets except its 200 and 200-c series, a Federal Register notice posted online on Wednesday said. (www.airlinerwatch.com) Más...Sort type: [Top] [Newest]
In this case it is a wider bandwidth causing the problem. Cheap equipment. Bad quality. Greedy guys. Why not affecting Airbus or Embraer?
People please keep in mind that mmicrowave power satellites are back on the drawing board being backed by the military for military uses. How this 5G issue is resolved will be a learning example for similiar problems to come.
Bill C.
Bill C.
Well, they're just going to have to land the old-fashioned way, by knowing what 50, 40, 30, 20, 10 feet looks like just by looking.
So the 737 needs an upgrade to one that does a better job of rejecting off-frequency input.
No one builds a radio receiver (1/2 of an altimeter) with perfect total out of band frequency rejection. Physics does not work that way. Frequency may be modulated digitally but it is in fact not digital. You build good enough. Now thanks to FCC good enough is no longer good enough.
Proving safe requires testing all versions of antennas, altimeters, Cell equipment in real world environments to show mutual compatibility. Just pray that there will not be two or three crashes before the world figures out there is a problem.
Proving safe requires testing all versions of antennas, altimeters, Cell equipment in real world environments to show mutual compatibility. Just pray that there will not be two or three crashes before the world figures out there is a problem.
Radio altimeters have been around long before cellular technology. Sophomoric perhaps, but cellular should be made to adapt to aviation not the other way around. Reminds me of the whiners who buy a house adjacent to an existing airport then complain about the noise and expect the airport to adapt to them.
The radar altimeters were properly certified when there was not an issue with high-powered radio transmitters located near airports, on an adjacent frequency band. These radar altimeters have operated for decades without these problems. Both sides should have looked at this several years ago to resolve the issue before it came to this.