:lol: I would like to thank everyone with effort to help me. I finally got it working. It's all about the patience (three weeks) needed to "search" for the signal. 1/8" could make a BIG different. I patiently moved the dish while my wife kept her eyes on the screen. When there's a flash on the signal quality, my wife stopped me. Then, I narrow down to the point to get good signal. I could never believe that it's so very sensitive.
Someone even suggested me to buy a small TV, so I can bring to the roof and work on signal search, and then return the TV...I think it's a very good idea, but I didn't have to do it
.
Thank you all!