08.02.07
FCC Report on TV Band Prototype Measurements Released
Correct sensing at -114 dBm was shown. This may or may not be sufficient depending on the configuration.
Read the report (pdf) here.
*Update* Wow. Here’s a heck of a pull-quote:
Where a DTV signal was strong enough to be received on the TV, [Microsoft's] scanner reported its channel to be free or available 40% to 75% of the time with an average of 58.2% of the time. These percentages are particularly high for Sites 3 and 4.