Just purchased a homepatrol 1 but not having any luck with the sd system. The scanner is receiving the Mn AMER system just fine. I am in the NE corner of the states the summit tower is the main site I should recieve. I do have a GRE 500 that has worked great for years but I know that also gave me some grief getting it setup the first time. I have a current database loaded. Would like to hear from others about their experience with the homepatrol in sd.