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Given the fragility of signals at these frequencies, how useful is this?

By that I mean that they're easily blocked, diffracted, whatever.




Fragility is a benefit; it reduces interference. This could be used for wireless VR goggles, for example.


Has there been any studies on the health effects that might arise from using these frequencies so close to the brain?


Plenty. It’s the same frequency range as cellphones, just at far lower power.


> It’s the same frequency range as cellphones, just at far lower power.

Cite?


Its not the same frequency range. Most cellphone networks use frequencies roughly between 500-3000MHz.


The alleged/misunderstood "fragility" can be exploited though. A lot of residential walls are gypsum board, which contains a lot of water, and attenuates microwave signals.

Rather than fight this by trying to shout as loud as you can from a single AP across the house, you can put smaller, weaker APs in multiple rooms. Because of the excellent open air penetration and high frequency, you can get a multi-gig links with no interference or competition.


Can you get that down to low latency? Say less than 1ms for the hops?


No, at least not with current stack. Each hop adds big overhead


Well, you can get close if you pull ethernet to the APs.


Then you don't have the hops, and the question was about that..


Yes if I have an ethernet cable in each room, I just extend that to the device. Palaces may be exceptions to that.


But you can't extend that cable to a mobile phone or a VR headset, in which case high-speed low-interference access points could prove useful.


As long as the signal can make it all the way from a phone in my pocket to earphones or glasses on my head it's useful.


Not much different than 5Ghz which is heavily used currently.


6ghz isn't very fragile, 60ghz is


60ghz is isn't very fragile, 600 ghz is


You kids get off my submillimetre lawn.


600ghz isn’t very fragile at 50db, 6THz is! (6THz if a common wavelength for fiber)


6THz isn't very fragile at gigawatt levels in a tight beam path. Travels right through most objects (eventually)


“Can you hear me now? Goo— oh, wait a sec… How ‘bout now? Good!”


Pew pew




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