Location should be fine.. You just gotta remember that it's not as easy as just pointing towards a strong signal in roughtly the right direction like a TV antenna.. Best thing to do is to find a strong signal and then tune in the tuner to see which sat group you're on (compare the channel listings with
www.lyngsat.com ) If it's you're below 28E then you need to move the dish left and if it's above then too the right..
One thing to check is that the pole you mount the dish on is perfectly upright, just grab a small spirit level and check at multiple positions