Leaves on trees will kill Ku reception, be it Dish or FTA.
With the Fortec FTA dish, you skew the LNB; the mount doesn't allow for that.
And if you're only a few degrees off your true south satellite, the LNB skew won't be much.
You didn't say where you were, but I'm assuming pretty far south.
If your elevation is 56º, then it's 56º.
What Ice was saying is that when you dial your dish to 56º, it appears to be looking 22º lower than it is really receiving a signal from.
So , the dish may appear to be aimed at the trees, when it is actually looking over them.
You don't add the two numbers together.
To get more clearance over the trees to your south, you move the base of the dish either UP in the air, or North on your property.
Either will get it away from the trees.
There's a web site around here some place with calculations (I'm sure someone will chime in) for "your satellite elevation" and the height of "distant objects".
BUT, the easy way is to
build this free sighting-inclinometer.
Okay, one buck for the angle gauge (protractor) at the 99¢ store...
