5G Puts Airplanes At Risk Electrical Engineer Explains

5G Puts Airplanes At Risk Electrical Engineer Explains

The new high-speed mobile services have raised concerns about interference with Airplanes aviation operations especially when aircrafts arrive at airports. According to the Federal Aviation Administration has assured Americans that commercial planes are secure. And AT&T as well as Verizon have decided to delay. The installation of their new antennas close to airports for six months. However, the issue hasn’t been completely resolved.

Concerns first surfaced after they learned that the U.S. government auctioned. Part of the C-band spectrum wireless companies in 2021, for US$81 billion. The carriers are using the C-band spectrum to offer 5G services in full speeds. Which is 10 times faster than 4G networks.

The spectrum of C-band frequencies is very close to the frequencies utilized. By the key electronic components that airplanes rely on to safely land. This is why it could cause problems.

The Orderly Airplanes Flow Of The Spectrum

Wireless signals are transmitted by radio waves. The radio spectrum spans from 3 hertz up to 3000 gigahertz, and is a an element of electromagnetic spectrum. The part of the spectrum of radio that transmits signals from your mobile as well as other devices. That wirelessly connect ranges from 20 kilohertz up to 300 gigahertz.

In the event that two radio signals within the same region use identical frequencies, it results in noisy garble. This is evident when you’re halfway between two radio stations. That use the same frequency or similar bands to broadcast their information. The signals are distorted and you may hear one station. And sometimes the other, mixed in with a healthy dose noise.

In the U.S., the use of these frequency bands is strictly control in the Federal Communications Commission. To ensure that wireless carriers, radio stations and other companies are allocated. Lanes, or frequency spectrums, that they make use of in a systematic manner.

Radio Waves That Bounce From The Ground

Modern aircrafts are equip with altimeters that calculate the amount of amount of time it takes for a signal bounce off the ground in order to determine a plane’s altitude. Altimeters are an essential component of automated landing systems that are beneficial in situations in which visibility is not great.

Therefore, if an altimeter interprets signals from wireless carriers as the ground’s signal that rebound it could conclude that ground level is further than it actually is, and then attempt to raise the landing gear, and perform the other maneuvers require to land an aircraft. If interference from wireless carrier signals a problem and muddles the altimeter’s radio signals the altimeter might not be able to recognize the signal that rebound and may not know how far from the earth the airplane.

The spectrum of radio frequencies used by cellphone companies and airplanes differ. The issue is that airplane altimeters operate in their frequencies within the 4.2 up to 4.4 gigahertz spectrum, whereas the recently purchased and previously unexplored C-band spectrum that wireless carriers use covers 3.7 up to 3.98 gigahertz. It’s been discover that the 0.22 gigahertz difference between these signals might not be enough to guarantee that the signal from a cell phone cannot be misinterpret as or degrade the signal of an altimeter.

Stay Clear Airplanes Of Trouble Right Now

The telecom industry has said in favor of the idea that the gap 0.22 gigahertz is adequate to ensure there’s no interference. The airlines industry is more cautious. Even if the danger is small I think the effects of a plane crash are huge

Which is the truth? The odds of interference are quite low However, the reality is that there’s not much evidence to suggest that such interference will never occur. The likelihood of interference is dependent on the receivers within Altimeters, and also their sensitiveness. My view is that the only way is to guarantee that these stray signals won’t get to the altimeters.

If the altimeters are able to recognize the signals that are not in their proper order as noise and remove them from the system and perform their job correctly. The upgrade of aircraft altimeters is expensive, however it’s unclear who will pay for the upgrade.

The FAA has been testing altimeters, and is currently clearing ones that it can rely to be reliable in the coming years. AT&T along with Verizon have agreed not to install 5G transmitters or receivers in the 50 biggest airports for six month while the solution is being formulate. This will prevent a huge problem in the short term but isn’t the only solution. Furthermore, regional airlines and rural airports are also in danger of being impact by.