I don't know where you are, and so don't know the angles for your location, but here in Colorado, 120' away means it would have to be 100' high to have me drag out the protractor.mburgess said:there is one tree... a tall tree yes but it's like 40 yards aways... I thought the elevation would be higher then that....
Here's some angle calculators for you. The first one knows about Dish 500, the second one has a magnetic declination map on the page.
http://www3.telus.net/rampage/skew.htm
http://www.csgnetwork.com/antennasatelazposcalc.html