The US has decided to keep its July 1 deadline for airlines to fit special sensors that prevent disruption to altimeters. Without the sensors, planes could be diverted from low-visibility landings.
C-band RSS
After telecom companies Verizon and AT&T agreed to delay deployment of 5G towers near airports, the FAA has started to rapidly clear airplanes for landing as the C-band won't hamper altimeters.