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On Thursday, 28 November 2019 08:50:07 GMT Walter Dnes wrote: |
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> On Wed, Nov 27, 2019 at 09:28:59AM +0000, Mick wrote |
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> |
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> > The world is moving towards high speed wireless connectivity anyway, |
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> > so more and more devices will not need a physical switch port or |
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> > ethernet cables to gain access to the network. |
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> |
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> "High speed wireless" is going to be a big disappointment. Due to |
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> laws of physics, you need high frequencies for faster wireless speeds. |
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> But higher frequencies have a lot less penetrating power. They might |
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> scream in a short range lab test, but in the real world, lower |
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> frequencies actually perform better. See |
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> https://arstechnica.com/information-technology/2019/04/millimeter-wave-5g-wi |
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> ll-never-scale-beyond-dense-urban-areas-t-mobile-says/ for a demo. This is |
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> about cellphone frequencies, but the same laws of physics apply. |
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Quite so. This is why infrastructure providers are planning to use lamp |
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posts, public buildings and the like. In rural areas where no street lighting |
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exists this becomes a problem. |
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However, many domestic WiFi routers come with dual WiFi SSIDs and separate |
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VLANs to allow 3rd parties to use your WAP as a WiFi hot-spot, as long as they |
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already have a user account with the same ISP, or are willing to register and |
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pay exorbitant fees (at least in the UK) for a few hours usage. |
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I can see a possibility for this hot-spot functionality extending to offer |
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domestic 5G aerial repeaters, but in the country side with miles of 'no-spots' |
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this is not going to offer much geographic cover anyway. |
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-- |
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Regards, |
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|
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Mick |