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Thread: AMAZING new wireless (again)

  1. #1
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    AMAZING new wireless (again)

    I'm aware that this kind of thing happens a lot, wimax...etc. But if this is real and works then it
    should be absolutely revolutioary and amazing.
    http://technology.guardian.co.uk/wee...637573,00.html

  2. #2
    The late but legendary peterb - Onward and Upward peterb's Avatar
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    Long on hype, short on technical detail... Like to see some technical review of the theory.. (But I am a bit of a cynic...)
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    Almost in control. autopilot's Avatar
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    Well just read this before getting excited... http://www.theregister.co.uk/2005/11/09/xmax/

    Search google news, and you get only nine hits, all about this week's announcement.

    Go back only a little way in history, however, and you start finding the names iDigi Communications, and Island Labs, and the word "fraud" pops up, together with the names of Bobier's colleague, Richard Mooers.

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    OOH yeah seems like another hoaxy-thing, then again it is just about possible that the company couldnt show the workings because they were waiting for a patent

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    Almost in control. autopilot's Avatar
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    Here's how it works; Start a company. Float it on the stock market. Announce an amazing new product. Shares sky-rocket. Some people make a tonne of money. Money get's creatively accounted away into a foreign bank account. Company folds/files for bankruptcy.

    Either that, or a load of third party companies get ripped off investing in it.

    Not saying that this is the case. I really hope it's true. But when something appears too good to be true, they usually are.
    Last edited by autopilot; 11-11-2005 at 08:42 PM.

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    Seething Cauldron of Hatred TheAnimus's Avatar
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    While it was almost 3 years ago i did any radio theory, this is setting off my bull shizer detectors.

    Amplitude Modulation, and Frequency Modulation. Amplitude you change the power strenght of the wave, frequency you change the time it takes for a cycle to complete. Nyquest rule is used to determine the lowest possible carrier frequency.

    Now if you've got a bit on a singal cycle, then your going to have horrific error rates.
    Whats more to the point is how this would help with range. But in the example they had its beliveable, becuase they would of had line of sight. With line of sight bob standard wireless gear can go for miles, importantly with omnidirectional.

    Now the point is you can't have frequency modulation with one bit per cycle without errors occuring. This is why you sample audio at twice the max frequency you can hear, because otherwise it might not always frame up correctly.

    To be fair i could be completely wrong about this, its just i can't see how by cunning signal modulation they've improved range. You either improve range by adding more redundancy to the signal, or you improve speed at the cost of range by having less redundancy, now it sounds like "one bit per cycle" would greatly reduce redundancy (so much framing errors would occur). But this is a very vague explanation, they might of thought of some way round this with very good clock sources.
    throw new ArgumentException (String, String, Exception)

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