Hi Mike,
Every installation is different since quality of signal received by the antenna depends on a number of things such as distance to the transmitters; topography; line of sight (obstructions); etc.
Do go to the antennaweb.org site above to do a desktop analysis for your location. For antenna recommendations, go to my site.
Thanks,
Errol
Keohi HDTV
[Link: keohi.com]Your Friendly HDTV Tips Site