So I had a local installer come and give me a hand in realigning the dish. Signal strength on average was about 70 and we improved it to about 86 or so. Channels 259, 264, 281 for example are still displaying 39 as a signal strength. I bought another quad lnbf and swapped it out with my original and it did not change a thing. We observed that channels 259, 264, 281 all use vertical polarization. All the horizontal polarization channels (254, 267, 269, 280, etc) work just fine. The installer believes it is the receiver so I will go and purchase a DSR600 from my current 505. Is it likely that the receiver is the problem since all vertical polarization channels are showing 39 while horizontal are 86+?
Thanks for your help.