This guy did a pretty good job.. The Federal Communications Commission (FCC) claimed low-band 5G will range from 600 GHz to 900 GHz. High-band 5G (millimeter wave) (MM wave), the spectrum between 30 GHz and 300 GHz that provides high-speed connectivity MM wave is also the only type of 5G with potentially different use cases (????) 5G service early in 2022 AT&T also intends to extend its 39 GHz mmWave 5G coverage, which the company calls 5G+ https://www.techtarget.com/searchnetworking/feature/The-3-different-types-of-5G-technology-for-enterprises Just remember how the graphene oxide moves when excited by energy like a magnet or cell phone signals. I don't need to draw a picture, you can imagine what may happen.. Low band is the spectrum to 4G and 4G LTE and operates on the closest frequencies to TV and radio stations. BUT this is microwave, like microwave oven freq. at 2.5G cspoa,org