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RF/Microwave??

ISM band witnesses wireless revolution

Posted: 12 Aug 2009 ?? ?Print Version ?Bookmark and Share

Keywords:ISM band? wireless? spectrum frequency?

Imagine a farmer facing the challenges of tracking the temperatures of 1,000 heads of cattle daily to prevent some animal diseases such as foot and mouth disease from decimating his herd. With wireless technology, such challenges can be easily overcome by simply attaching a temperature sensor equipped with a wireless transmitter on each cow, transmitting its reading to a main terminal. Such a method helps save time and the costs of dispatching crews for frequent and more often than not, unnecessary measurements. This illustrates the level of penetration of the low-power wireless devices operating in the ISM frequency band into everyday life (security, medical, industrial, agricultural etc.). This penetration is being driven by three main factors:

? The desire to get rid of hardwired communications that are otherwise required for transmitting data over a long range;
? The allocation of the ISM frequency band by the regulatory bodies of various countries;
? The emergence of different wireless standards to offer interoperability in the ISM band.

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