The installer that put in my 1000+ and VIP622 a week ago saturday did not install the DPP44 with a power insertion. He said that the switch did not need to be powered unless there were two or more receivers and I only have a single 622. I have noticed some pixalation on several channels at times even with good signal strength (over 80 on 129). In researching the switch it states that the switch needs to be powered and I can't find any reference to the number of receivers. My question to the group is does the switch need to be powered and does the lack of a power insertion have and thing to do with the pixalation. The installer was a sub for dish and took the power insertion module with him. Should I call them back and insist that the power insertion module be installed? I do have some loss of signal with OTA going into the 622 that I did not have when the OTA antenna was hooked directly to the TV. I do believe that the tuners that dish uses are not as good as those that are installed on the new generation of plasmas.