Check your remote. Some DISH receivers have a short antenna on the rear and the remote to receiver is actually UHF, no line of sight needed. The IR lights on the front of those remotes are for the TV, etc. The typical DISH receivers draw about 50-100w, so reasonable ventilation is needed. I've been looking for a suitable bracket to mount mine against the wall under the dinette, primarily since this is where the the existing cable port is.
Air Safe Hitch, Reese Dual Cam 800#, Centramatics