I'm having a slimline installed for my sister and bro-in-law today. I will be giving the H20 (hopefully an h20 and not h21) to them on Christmas day. I'm guessing the installer will need to hook up the receiver to check signal strengths after the dish swap (currently a 3lnb), but I don't want to activate the receiver until Christmas. They currently have a Samsung receiver that they own and may move that or may just deactivate it for awhile. Can the installer hook up the receiver and check the signals without activating the receiver?