When we are out on the road in the RV I preset the tilt and elevation settings to the figure I get on
www.dishpointer.com. Then I set the dish arm to the compass setting I get from that same site. Next you power everything up setting the receiver to use the signal strength meter in the receiver. Then you slowly move the dish left and right until you get the best reading on the meter. When you have the best reading, tighten the bolts that control the azimuth setting tight enough that they will not move during the "tweaking" of the elevation setting. Once the bolts are tight on the pole, you loosen the bolts on the sides of the elevation setting. Now, while holding the dish by the top, you loosen the nut on the connector that holds the "dithering" shaft. This allows you to move the dish up an down for the best reading on the elevation. Once you get the best reading tighten the "dithering" holder nut first then the two that slide on the elevation settings. I find that this is "good enough" for "on the road" settings. I have yet to experience drop outs on the HD channels using this technique. I know others talk about doing the full "dithering" thing. But, for a temporary setup this seems to be enough.
I used to recommend a couple of android phone apps for help with the setup. But after a recent RV trip trying to use them I found that the compass on my Samsung Galaxy SIII is so crappy as to make them basically useless. If you have another brand of android phone you may want to try Satellite AR which shows you any obstructions that may cause problems or SatFinder that will give you actual settings to use for setup. If you have a Galaxy type phone, however, I now recommend a standard compass for the original azimuth setting.
Hope this helps