I picked up a portable SAT DISH for DIRECTV with a two port head and I would bring along the SAT RCVR that was in our two bedrooms.
Sometimes I would have to reset my service by calling DIRECTV and they would reset it just fine. I guess when I unplugged my older SAT RCVR it would lose it chip setting.
I ran two RG cables from the two heads of the SAT DISh with one going to the living room area of the Rv and the other one going to the bedroom tv.
After hooking up the SAT RCVR I would use the VIDEO out of the SAT RCVR and feed the video input on the TV set. This way I could use OTA-CABLE-SAT by just switching the remote setting...
Never had any problems with DIRECTV doing this. i would however lose my LOACL TV stations when I moved outside my ZIP CODE area.
I did this until NATL TV came out with digital HDTV a few years back and then just stopped bring along my DIRECTV stuff with us. The OTA TV signal were all in HIGH DEF HDTV mode so this was a much better signal then coming from the standard DIRECTV signals. OTA HDTV is free to the public of course. My BATWING OTA antenna with the dipoles works great for us pointing at the local towns that transmit OTA HDTV signals.
The newer SAT TV setups for RVs today appears to be alot different than back in the old days. Probably way to expensive for me to try to use them...
My SAT TV story...
Roy Ken