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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 ...
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- 10-03-2010 #1
- Join Date
- Jul 2009
wireless, frequency vs range?
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?
- 10-09-2010 #2
- 10-10-2010 #3
- 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!