Things sure have changed now with how the SAT TV works from just a few years back...
Never had any luck using the SAT CONNECTION jacks on the side of my various trailers for SAT TV. It was always an issue with the DC POWER needed to fire up the SAT DISH heads.
The only way I could get SAT TV to work without modifying things was to run separate RG cables from each of the two SAT DISH heads going to the living room and bedroom TV sets.
When the National Broadcast from local towns came out with digital TV I quit bringing all my SAT TV STUFF from the house along with us on trips. National Broadcast is free to the public and is full blown high def digital HDTV signals...
Things keep progressing along...
Roy Ken