Friday night seems to be all the good metal... it went from 1200 watts to 9600http://www.umassd.edu/communications....cfm?a_key=810http://www.wers.org/
this one is only 4,000 watts. they tried a bit of a multicast but it was just a delay of their normal content.
Even less than that is this one only 1700 wattshttp://en.wikipedia.org/wiki/WKAF
I'm not in range enough for 107.3 to come in hd (it's in worchester 53 miles away)
These ones are pretty sensitive though. I'm more apt to get them stationary rather than moving and I think they might be more directional.