Guys, thank you for your inputs.
As Nelson61, Garys and Oljim pointed out, I need a specific FSS lnb to pick-up that dish. Though, this is only one part of the issue as far as I understand it.
If I want to have an automatic tracking system (I would already be pleased with stationary), I guess that I need to achieve two things, first to get the satellite signal, so I need the right size dish and the right LNB. Second, I need to have the satellite tracking system locking onto that satellite. This is where I believe I will have a problem if I change the LNB of a Winegard dish (or any other manufacturer), as Nelson61 suggests, since 118.7 is not part of the supported satellites, so it will not be traked. Or can I reprogram the system to track that satellite?
Harshness, you suggest using mounts to support conventional dishes. This might be a good option for me, since it does not seem anyone designs a programmable traking system; I could mount a standard 500+/1000+ dish on that RV mount. Do you have references? Are those crank-up, or mounted on the ladder?
Harshness suggests to go away from 118W. Well, I would be pleased, but some of the channels I am interested in are unfortunately only available on that satellite :-(