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What is FHSS and DSSS?

DSSS FHSS
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What is FHSS and DSSS?

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FHSS is Frequency Hopping Spread Spectrum, and DSSS is Direct Sequence Spread Spectrum. Both operate from 2.400-2.485 GigaHertz, in what is known as the ISM band. The 802.11 wireless standard covers both DSSS and FHSS, although not all manufacturers employ or fully adhere to 802.11. Both FHSS and DSSS use the middle 79 frequencies and must leave the top and bottom 3 alone as a “buffer”.

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