I was going to post link to the actual lab URL when I mentioned IEEE 802.22 in the other UHF thread going on here: »Threat to WISP's and ISP's? Free Super WiFi FCC White Space
»www2.nict.go.jp/wireless/smartla ··· dex.html
BTW although they claim to be first "prototype" for 802.22, there are a few others in development. Sort of like 802.16 prototypes in early 2005.