U.S. carriers have fired back on the 5G expansion

At the last minute, the two largest U.S. mobile operators, AT&T and Verizon, pushed back on the inclusion of 5G cells in the so-called C-band, in response to a request from the Secretary of Transportation and the local aviation authority, the Federal Aviation Administration (FAA). The start was planned a month earlier by the two companies, the waiting period has now been extended for another two weeks, and both sides have pledged to limit tax performance at fifty U.S. airports over the next six months.

Conflicts of interest between prominent players in the U.S. aviation industry and telecom operators received more serious press coverage in mid-December as major U.S. airlines and Boeing and Airbus sounded the alarm, citing a new FAA aviation recommendation.

Industry has argued that the use of 3.7-3.98 GHz radio altimeters could cause interference with mobile communications networks operating in the C-band, which could ultimately jeopardize approach maneuvers and landings at some airports.

At the same time, according to telecommunication companies, the networks operating in the C-band are well suited to the RADALT equipment used by airports, the problem indicated by the FAA is rather caused by the lack of regulation of the latter equipment (power control, improper use of guard bands).

The aviation authority can now use the next six months to address these shortcomings, thus creating safe conditions for the use of radio altimeters in civil aviation, similar to those used in European airspace.

Source: HWSW Informatikai Hírmagazin by www.hwsw.hu.

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