It's the Strong signal reflections (multipath) off the other buildings that is killing the reception. The Digital Tv Tuner says , I can't deal with all those strong signal reflections so you will not watch some channels. Install a variable attenuator to 'Dial Down' the signal strength. Do Not use any type or kind of antenna amplifier or amplified antenna. In the
http://www.solidsignal.com , search box type , 1296f. . Put the
http://www.winegarddirect.com , FVHD30 antenna in the south window.