I have been using this one now for the second year. Website
www.tvsatusa.com. It is completely portable and seeks satellites automatically. I have been very pleased with its performance and ease of setup. Takes all of 10 minutes, if I am moving slow. It also uses SWiM technology and I am able to run as many recievers I want. Currently I run 2 hd recievers in my camper. Works great!