802.11b and NTIA Emissions Designator

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biff44

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802.11 + 22m0

Does anyone know the necessary bandwidth of a standard 802.11b card, transmitting 11 Mbps in CCK modulation?

I think the NTIA emissions designator for my application would be 22M0G7W, where the "22M0" implies a 22 MHz necessary bandwidth. Is that correct? It seems too big to me.
 

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