Hello Good People... Came back to a vacation property with box brought from home that works great at home and has worked great at vacation property in the past. Getting 771 error code. Checked on screen signal strength and got “0” across the board. Had mid / high 90’s when it was working properly (I bought an AIM meter on eBay to help dial it in). Update: My Dad notice the integrated level bubble in the mast was off for some reason and readjusted the supporting struts to get it back in level. Worked for 5 minutes and then went to error 775 with no picture. I’m guessing this is an alignment issues at this point and we need to start over by ensuring it is level and then use the AIM meter to nail the signal strength. Sound right? Appreciate your help!