The Problem With 5G

https://www.ainonline.com/aviation-news/general-aviation/2022-01-11/problem-5g 

At issue, the impact of wireless signals in the 3.7 to 3.98 GHz range bumping up against radar/radio altimeters that live in the 4.2 to 4.4 GHz environment, causing those altimeters to give potentially false readings to pilots and the various aircraft systems they support, endangering aviation safety, particularly during takeoff and landing in low visibility conditions