Total misinformation.
You can use a ground based dish assembly just fine. Does not have to be a Winegard. I bought my ground based open faced dish tripod assembly off of an internet reseller for less than two hundred dollars. To do so, yoh will need to learn how to set it up and find the 101 satelite. A 500 dollar AIM meter, the exact same one Directv techs use is the best. But there are some lower cost options that work well. For years I used a 200 dollar Align A Site that allowed me to set the dish anywhere and as long as I had a clear view of the southern sky got a signal in a hurry.
Yea, for around 2 grand you can put an automatic roof top dish on your roof. Had two, would never do it again. Problem is any trees blocking your line of site and you have no signal. Thus I used my ground based assembly probsbly 90% of the time. BTW Winegard is junk. RFMogul is a better product if you go that way. At least it can be serviced on your roof. Winegard makes you take it down and ship it to them.
In fact to the OP for the price of shipping I will give you a perfectly good dish tripod assembly and if I still have them the power inserter and splitter you would need to duplicate your home setup in your trailer.
