[Motor City Peep]

Hi. I live on the 27th floor of a concrete apartment building in downtown Detroit. I get most of the local DTV channels but am wondering why I don't get any of the Windsor, Ontario channels? I just recently bought a Winegard SS-3000 Amplified Low Profile Indoor Antenna, and like I said, I get the US channels that I want. I even get a Canadian channel 70 miles away. I just don't get the Canadian channels 5 miles away. And I'm clueless about pointing the antenna, if it's even the right one given where I live. So I appreciate what advice you can offer.