Unlicensed Frequencies

The following table defines the unlicensed frequencies available in a number of countries:

Country	Frequency	Notes	Standards
US	2.400-2.483.5 GHz	ISM Band (max 4W EIRP)	802.11/11b
	902-928 MHz	ISM Band (Used by GSM in most countries)
	5.800-5.925 GHz	ISM Band
	5.15-5.25 GHz	UNII (Unlicensed - National Information Infrastructure) max. 200 mw EIRP	802.11a
	5.25-5.35 GHz	UNII max. 1w EIRP	802.11a
	5.725-5.825 GHz	UNII max. 4w EIRP	802.11a

For a complete list of all US frequencies go to the US Frequency Allocation site.

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