Ask your electrician if he has experience with those dishes. He might be able to move it for you, or help you (You help HIM).
That is a good idea!
IF you end up moving the dish to a distant location the electrical code calls for back bonding ground rods. Directv techs for sure do not have 8ft ground rods to pound in nor do they have the 6ga (I think) ground cable. They just don't ask or tell if the dish is not grounded or is at excessive length.
For some reasons electricians insist on twist on fittings which just fail all the time. Let the DTV tech cut the approved fittings.