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  1. #1

    wireless, frequency vs range?

    Say for example I'm designing a wireless product, such as a new type of cell phone or computer. And it's supposed to be a point to point system, instead of going through the corporate cell towers or cable modems like the internet and cell phone networks now. With that there is the concern of range, will my device be able to reach others from a decent distance?

    I know there are two main unlicensed bands that are commonly used, the 900 MHz one and the 2.4 GHz. I've heard there is such a relationship that the lesser the frequency, the greater the range. Is this true? Consider a suburban area for this kind of thing. And also, I've heard that 900 MHz isn't much used outside the US, is this true? Because it's not allowed in many countries?

  2. #2
    Linux User ved's Avatar
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    Jan 2008
    New Delhi
    Take risks: if you win, you will be happy; if you lose, you will be wise.
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  3. #3
    Linux Guru Rubberman's Avatar
    Join Date
    Apr 2009
    I can be found either 40 miles west of Chicago, in Chicago, or in a galaxy far, far away.
    Your antennas are probably the most important part of this. Lower frequency = longer wavelength = greater distance. However, there are other issues, such as attenuation due to weather conditions, whether or not you are line-of-sight between nodes, urban vs. open range, etc.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!


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