Zip code 95051 puts address at Cabrillo Ave and Santa Cruz Ave. . Thats LOS = Line Of Site to 28 digital Tv stations. And the signals are Very Strong. . So what type of structure do you live in? Is it a metal box ? Metal siding on the out side ? . Read this
http://forum.tvfool.com/showthread.php?t=233 I will look at the satellite and street views of Santa Clara.