Airlines have voiced concern that the rollout of 5G mobile technology in the United States could cause potentially dangerous interference with aircraft systems. The C-Band frequencies used for 5G networks are close to those used by the altimeters of airplanes. The 5G rollout was then delayed until January 19 following a request from the Federal Aviation Administration to ensure the system is safe. South Korea, a leader in the new-generation mobile technology, gave 5G networks a ceiling of 3.7 GHz. But the US telecom industry's lobby group, CTIA, has pointed to another example: Japan, where 5G networks have been given a frequency spectrum as high as 4.1 GHz.

Source: News 24 January 20, 2022 21:24 UTC