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Why is 5G wireless service causing problems for US airlines?

Carriers worry over interference with altimeters, but telecoms groups say there is no safety problem

The highly technical realms of wireless technology and avionics exploded into a furore in the US this week, after airlines warned of chaos if telecoms groups launched new 5G networks as planned on Wednesday.

5G will offer mobile phone users superfast connections and is expected to hasten the digitisation of many industries. But airlines have raised concerns over potential interference with their instrument systems.

AT&T and Verizon, the telecoms groups, on Tuesday said they had voluntarily agreed to scale back 5G near certain airport runways while pushing ahead with nationwide rollouts. The moves eased the showdown with the airline industry.

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