I am using a Radioshack VU-190XR outdoor antenna. It is a little over 5' long and almost 4' wide. I also have a DB8 antenna and both are connected together using a Radioshack model 15-2507 amplifier. I have 2 converter boxes the RCA DTA 800B and the Insignia NS-DXA1. (The Insinia is by far the better box as far as editing channels and overall use). My question is that I can recieve some analog channels rather clear but not on digital. Depending on the weather I can recieve certain channels on digital that won't even come close to being recieved on analog. After looking at the coverage page that was put on the site some channels I recieved were twice the distance as some of the channels I am supposed to be recieving that are closer to me but I do not. Is part of my problem because I have both of these antennas hooked together? I have noticed that the DB8 picked up some channels the bigger antenna wouldn't but then again I have both the antennas together. I have also noticed some problems with the RS amp cutting in and out, meaning I can be viewing a channel with high signal strength and it will all of a sudden go to zero signal and back up....even during perfect weather conditions. Any help is greatly appreciated and I thank you very much.