Why are airlines worried about 5G and how will it affect global flights?


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Major international airlines have rushed to rejig or cancel flights to the US ahead of a 5G wireless roll out on Wednesday that has triggered safety concerns, despite two wireless carriers saying they will delay parts of the deployment.

AT&T and Verizon agreed on Tuesday to a partial delay in activating their 5G networks following an outcry from US airlines, who said the rollout could lead to travel chaos.

Emirates airline was one of several aviation companies that announced it will suspend flights to several US destinations as of 9.01am on Wednesday.

An Emirates airline Airbus A380-800 plane takes off from Dubai International Airport. Reuters
An Emirates airline Airbus A380-800 plane takes off from Dubai International Airport. Reuters

Why has the 5G rollout affected flights?

Telecom giants spent tens of billions of dollars to obtain 5G licences, but as the launch date approached aviation industry groups raised concerns about possible interference with aircrafts' radio altimeters – which can operate at the same frequencies – particularly in bad weather.

Radio altimeters give precise readings of the height above the ground on approach and help with automated landings, as well as verifying the plane has landed before allowing reverse thrust. Altimeters operate in the 4.2-4.4 GHz range and the concern is that the auctioned frequencies sit too close to this range.

Which airlines have been affected by the 5G rollout?

The heads of 10 passenger and cargo airlines, including American, Delta, United and Southwest, said 5G will be more disruptive than they originally thought because dozens of large airports that were to have buffer zones to prevent 5G interference with aircraft will still be subject to flight restrictions announced last week by the Federal Aviation Administration, and because those restrictions will not be limited to times when visibility is poor.

The world's largest operator of the Boeing 777, Dubai's Emirates, said it would suspend flights to nine US destinations from January 19, the planned date for the deployment of 5G wireless services.

Emirates flights to New York's JFK, Los Angeles and Washington DC will continue to operate.

Emirates airline president Sir Tim Clark said he was unaware of the potential danger posed by the introduction of 5G networks in the US until Tuesday morning. Speaking on CNN, Mr Clark described the situation as "one of the most delinquent, utterly irresponsible" in his aviation career.

"We were not aware of this until Tuesday morning, to the extent it was going to compromise the safety of operation of our aircraft and just about every other 777 operator to and from the United States and within the United States," Mr Clark told CNN's Richard Quest.

Etihad Airways’s services to the US, meanwhile, are not currently affected by the introduction of 5G networks. The national airline of the UAE will continue to operate flights to New York, Washington DC and Chicago as scheduled, the airline said on Wednesday.

Japan's two major airlines, All Nippon Airways (ANA) and Japan Airlines (JAL), said they would curtail Boeing 777 flights.

ANA said it was cancelling or changing the aircraft used on some US flights. JAL said it would not use the 777 on US mainland routes "until safety is confirmed," according to a notice to passengers reported by airline publication Skift.

Korean Air said it had switched away from 777s and 747-8s on six US passenger and cargo flights and expected to also change planes used on another six flights on Wednesday.

Taiwan's China Airlines said on Wednesday it would reschedule some flights, while Hong Kong's Cathay Pacific Airways said it would deploy different aircraft types if needed.

The airlines said they were acting in response to a notice from Boeing that 5G signals may interfere with the radio altimeter on the 777, leading to restrictions.

Workers install equipment on a 5G cell tower in Salt Lake City, Utah, US, on Tuesday, January 11. George Frey / Bloomberg
Workers install equipment on a 5G cell tower in Salt Lake City, Utah, US, on Tuesday, January 11. George Frey / Bloomberg

What is 5G exactly?

Fifth generation of cellular mobile technology, or 5G, will enable rapid data transfer, energy saving, cost reduction and widespread device connectivity through the Internet of Things.

5G networks rely on denser arrays of small antennas and the cloud to offer data speeds up to 50 or 100 times faster than current 4G networks and serve as critical infrastructure for a range of industries.

By 2025, 1.2 billion people are set to have access to 5G networks – a third of them in China, according to the global wireless trade group GSMA.

Unlike the upgrades of cellular standards 2G in the early 1990s, 3G around the millennium and 4G in 2010, 5G standards will deliver not just faster phone and computer data but also help connect cars, machines, cargo and crop equipment.

How can this be fixed?

In the short-term, AT&T and Verizon agreed to temporarily defer turning on some wireless towers near key airports to avert a significant disruption to US flights. Read more

Longer-term, the FAA needs to clear and allow the vast majority of the US commercial airplane fleet to perform low-visibility landings at many airports where 5G C-band will be deployed. This means certifying altimeters to operate near 5G base stations.

The alternatives

• Founded in 2014, Telr is a payment aggregator and gateway with an office in Silicon Oasis. It’s e-commerce entry plan costs Dh349 monthly (plus VAT). QR codes direct customers to an online payment page and merchants can generate payments through messaging apps.

• Business Bay’s Pallapay claims 40,000-plus active merchants who can invoice customers and receive payment by card. Fees range from 1.99 per cent plus Dh1 per transaction depending on payment method and location, such as online or via UAE mobile.

• Tap started in May 2013 in Kuwait, allowing Middle East businesses to bill, accept, receive and make payments online “easier, faster and smoother” via goSell and goCollect. It supports more than 10,000 merchants. Monthly fees range from US$65-100, plus card charges of 2.75-3.75 per cent and Dh1.2 per sale.

2checkout’s “all-in-one payment gateway and merchant account” accepts payments in 200-plus markets for 2.4-3.9 per cent, plus a Dh1.2-Dh1.8 currency conversion charge. The US provider processes online shop and mobile transactions and has 17,000-plus active digital commerce users.

• PayPal is probably the best-known online goods payment method - usually used for eBay purchases -  but can be used to receive funds, providing everyone’s signed up. Costs from 2.9 per cent plus Dh1.2 per transaction.

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Founders: Iheb Triki and Mohamed Ali Abid
 
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Investment raised: $4 million 
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Dubai works towards better air quality by 2021

Dubai is on a mission to record good air quality for 90 per cent of the year – up from 86 per cent annually today – by 2021.

The municipality plans to have seven mobile air-monitoring stations by 2020 to capture more accurate data in hourly and daily trends of pollution.

These will be on the Palm Jumeirah, Al Qusais, Muhaisnah, Rashidiyah, Al Wasl, Al Quoz and Dubai Investment Park.

“It will allow real-time responding for emergency cases,” said Khaldoon Al Daraji, first environment safety officer at the municipality.

“We’re in a good position except for the cases that are out of our hands, such as sandstorms.

“Sandstorms are our main concern because the UAE is just a receiver.

“The hotspots are Iran, Saudi Arabia and southern Iraq, but we’re working hard with the region to reduce the cycle of sandstorm generation.”

Mr Al Daraji said monitoring as it stood covered 47 per cent of Dubai.

There are 12 fixed stations in the emirate, but Dubai also receives information from monitors belonging to other entities.

“There are 25 stations in total,” Mr Al Daraji said.

“We added new technology and equipment used for the first time for the detection of heavy metals.

“A hundred parameters can be detected but we want to expand it to make sure that the data captured can allow a baseline study in some areas to ensure they are well positioned.”

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7pm, Pitch 5, Bahrain v Dubai Eagles 2

 

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Updated: January 20, 2022, 7:51 AM