[DishCharlie]

Another possible way to maximize signal for scanning is to scan directly at the antenna, bypassing the normal losses from the cable and switch. Once the receiver scans a channel into it's memory, it will allow the channel to be received at the normal location by the TV even if the signal is sub-par.

Normal housekeeping will also help keep signal losses to a minimum. Clean, dry, tight cable connections, clean dish LNB/reflector and proper grounding of dish/switch. Any connection changes must done with the receiver switch off to prevent damages to sensitive electronic components.