US authorities have asked telecom operators AT&T and Verizon to delay for up to two weeks their already postponed rollout of 5G networks amid uncertainty about interference with vital flight safety equipment.
The US rollout of the high-speed mobile broadband technology had been set for December 5, but was delayed to January 5 after aerospace giants Airbus and Boeing raised concerns about potential interference with the devices planes use to measure altitude.
The US letter asked the companies to "continue to pause introducing commercial C-Band service" -- the frequency range used for 5G -- "for an additional short period of no more than two weeks beyond the currently scheduled deployment date of January 5." The officials say their priority has been "to protect flight safety, while ensuring that 5G deployment and aviation operations can co-exist."
But when Airbus and Boeing raised their concerns about possible interference with airplanes' radio altimeters -- which can operate at the same frequencies -- the launch date was pushed back to January.The FAA requested further information about the instruments, and it issued directives limiting the use of altimeters in certain situations, which sparked airline fears over the potential costs.
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