Well there are some "Automatic" portable antennas for Sat-TV but all, without exception, have issues
All the Dome and Cube type portables are single Sat devices. They can see one satellite at a time. For DirecTV that is 101W For DirecHDTV that is.. Sorry folks that service needs two more birds those antennas can not even see.
For dish it is one of 3 or six. but only one at a time, if you have multi-channel capability (More than one receriver or a DVR) not joy there either as if one channel wants say 110 and the other 119, That takes a dish.
AUTOMATIC dish antennas DO exist, but they are not designed for portable use.
Still. you could make a portable mount and make them portable but .. Well. I do not recommend, big, bulky and heavy.
NOW. on an open site, the automatic roof mounts work great. But on a wooded site, parked under the evil signal eating tree.. No joy.