| Unlicensed
Bands |
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| n | Industrial,
Scientific, and Medical (ISM): |
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| – | 915
MHz band (902 - 928 MHz, 26 MHz bandwidth) |
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| n | only
available in North America |
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| n | highly
crowded, expected to become even more crowded |
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| n | many
existing users are non-spread-spectrum applications |
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| – | 2.4
GHz band (2.4 - 2.4835 GHz, 83.5 MHz |
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| bandwidth) |
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| n | available
worldwide |
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| n | lightly
loaded, but interference from microwave ovens |
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| – | 5.8
GHz band (5.725 - 5.85 GHz, 125 MHz bandwidth) |
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| n | only
available in North America |
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| n | lightly
loaded, radar interference |
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