I’ve posted before about TVfool.com which can help you locate the proper location and orientation for your antenna.  It’s one of the best tools I’ve found thus far for trying to compare analog to digital ranges from OTA sources.
While taking a look around the web today, I came across the FCC’s own mapping tool to help consumers figure out what signals they’ll be able to receive after the transition.  By entering your address and zip code, the site will show you what stations you’re served by and the signal strength …