Dangerous 5G networks continue to roll out

a reply to: ChaoticOrder

The frequencies you'll be referring to are the 28GHz, 37GHz and 39GHz bands - which are currently used (safely!) for point-to-point links, PMSE and other fixed and mobile uses. Again, the roll out of 5G service on these bands is purely for densely populated areas - including indoor coverage, however the main-stay service (ie. your normal out and about mobile service) will be deployed on frequencies considerably lower - especially as 5G replaces 3G and 4G services.

As an example, say you're in a large shopping mall with many thousands of other people - Traditional cell services cope very poorly with this type of area. Either you have one large high-powered low frequency cell tower, or you have multiple higher-frequency medium power towers. Neither work particularly well indoors - the former can not cope with the bandwidth requirement and causes your 'phone to transmit on a higher power than necessary - and when all the phones in the area do the same thing it means that the noise floor increases and all calls fail or data goes incredibly slowly.

The second method can carry the bandwidth, but does not penetrate all the "dark" areas of the mall - meaning there are pockets of areas where there is no service.

The solution to this, and this is where 5G is unique, is to use the same principle as 4G service - ie. a totally IP based end-to-end network that does not rely on any one radio interface, but allow it to be deployed from multiple access points (cells).

So by mixing standard service, say at 900MHz for the "core" VoLTE network but allowing micro cells at much higher frequencies to "gap fill" - it means you end up with a service that works under all conditions and with the lowest possible power (to prevent each cell overlapping the next).

This is the same principle many offices use to provide WiFi - there might only be one WiFi network, but there will be many access points - all running at a lower power than your domestic WiFi - enabling you to roam freely between the access points.

So yes, in the US at least, some of the very high frequency bands will be used for indoor coverage and gap filling - and by doing this, again you are overall using a lower power density than having a bigger cell at a lower frequency.

Trust me when I say this. The radiowave content passing through you on a daily basis is so much more vast than what will happen with any type of connectivity roll-out, that it's pissing in a hurricane, in neck deep water.

Absolutely - people forget the biggest source of radio emissions across the entire spectrum is the big bright thing that appears in the sky daily. The highest-powered, broadest-band transmitter in the solar system that has more umph than any terrestrial transmitter.