>>8307015 (PB)

If you have sauce for actual 6GHz equipment availability, who is the manufacturer? Which carriers are installing 6Ghz? Whose test equipment is being used? Thus far, so far as I know, none of this is commercially available.

Satellite Technology

Some of the advantages of sub-6 GHz spectrum include, according to the Pacific Telecommunications Council:

The existing investment by satellite industry (169 commercial satellites, investments of $50 billion to $60 billion and growing, user base = several hundred millions)

Unique technical properties (rain fade, coverage); often preferred solution for broadcasting, telemetry, disaster relief, meteorological, aeronautical, etc.

https://www.rcrwireless.com/20160815/fundamentals/5g-sub-6ghz-tag31-tag99

Qualcomm

https://www.fiercewireless.com/wireless/qualcomm-5g-all-about-sub-6-ghz-and-mmwave

Huawei

In fact, some companies have begun to concentrate their 5G efforts on these kinds of sub-6 GHz improvements. Chinese smartphone manufacturer Huawei has said that sub-6GHz bands will be “the primary working frequency” for 5G, and Qualcomm recently announced a new 5G radio prototype focused on the same batch of frequencies.

https://spectrum.ieee.org/tech-talk/telecom/wireless/real-5g-will-broadcast-above-6-gigahertz-analyst-says

Samsung

https://www.fiercewireless.com/devices/new-samsung-5g-phones-can-tap-both-sub-6-ghz-and-millimeter-wave-spectrum