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5G C-band on Airplanes?

 

The C-band network is scheduled to launch in December. On October 5, 2021, the aviation industry and the FAA argued that the C-band signal from aircraft radios, which estimates the distance of aircraft from the ground for landing in bad weather, should be picked up. These altimeters are designed to use the same band as the 5G network (the aircraft frequency is 400 MHz in the network launch of 2022), but some of them are designed not to scan the surrounding frequencies, because these frequencies are not used to power when altimeters. was built. The FAA and air carriers agree on a two-mile "exclusion zone" around most airports where air carriers will not launch c band first. cities like Chicago, Dallas, New York and San Diego that are close to the airport. Our tests showed that Verizon appears to maintain a signal beyond the two-mile limit, at least in New York.

 

The FAA is also working to review and approve altimeter models with precision filters, although some observers wonder why the agency could not have done so a year ago, when a different model was installed. separate for the sale. No aircraft interference affects frequencies below 3.7 GHz. This means that it does not affect CBRS, or T-Mobile's mid-band, or AT&T's 3.45 GHz. This gives AT&T and T-Mobile a significant advantage over Verizon right now, as they are able to install centralized systems near airports where Verizon is not.