Does 4G and 5G use radio waves?

The problem is that a study conducted last year shows that 5G transmissions in this spectrum interfere with radio altimeters on aircraft , saying there is a “major risk” that these systems “will cause harmful interference to radar altimeters on all civil aircraft.” These radio altimeters operate in an adjacent spectrum …

5G uses a specific frequency of radio waves to deliver the internet to mobile devices, just like 4G and 3G before that. This type of radiation, and for that matter much stronger radiation, is commonly part of our daily lives.

A: 5G is based on OFDM (Orthogonal frequency-division multiplexing), a method of modulating a digital signal across several different channels to reduce interference . 5G uses 5G NR air interface alongside OFDM principles. 5G also uses wider bandwidth technologies such as sub-6 GHz and mmWave.