There were concerns some altimeters might not properly filter 5G signals. | Photo by Nicolas Economou/NurPhoto via Getty Images
The FAA has announced that an “estimated 78 percent of the U.S. commercial fleet” have been cleared to land at airports with 5G C-band, even under low-visibility conditions. The agency’s statement comes after a week of controversy surrounding the rollout of AT&T and Verizon’s upgraded cellular tech, which saw US airlines warning of “catastrophic disruption” to travel and shipping and some international airlines announcing they’d halt flights to some US airports.
At issue are concerns that some radio altimeters won’t properly ignore signals from the new 5G transmitters. While there are precautions that should keep this from happening, including creating buffer zones around airports, an incorrect altimeter reading could cause real problems…