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Frequency hopping spread spectrum – Siemens IEEE802.11 User Manual

Page 20

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© Siemens, 2002

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FREQUENCY

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Frequency Hopping Spread Spectrum

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2.4GHz band is 83.5MHz wide (US & Europe)

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Band is divided into at least 75 channels

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Each channel is < 1MHz wide

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Transmitters and receivers hop in unison among
channels in a pseudo random manner

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Power must be filtered to -20db at band edge