I have a Slimline DirecTV dish that was installed less than a year ago with a two TV SWM HD DVR system. I am generally pretty handy and wanted to save money by moving it myself. At our new house (there are trees) I have tried in two locations (one on a pole near an existing installed satellite internet pole) and also on the roof where there is a sight line through trees. I have set elevation and tilt per DirecTV provided numbers, and used compass app on my phone to set azimuth (I don't have a signal meter). Masts were plumb at both locations. Everything is wired exactly as it was at old location (dish to splitter, coax to swm box, swm ird output to sat1 input on HD DVR), with the exception of TV 2 box not set up. I have tried making adjustments to azimuth and always get zeros on signal strength screen. I also get alternatively 771 and 775 error messages. I am beyond frustrated and looking for any tips on mistakes I may be making. Do I really need to get a signal meter? Is there something I need to do via the hd dvr menu to make it work? Does the second box need to be hooked up too in order for the main tv to work? If you have insight on what I'm doing wrong it would be SO appreciated. I really don't want to have to pay DirecTV to send someone out, especially after all my effort so far. Thanks!