Don the only difference is the dish size. The house dish is a 18" round, the camper dish is a 18x20. I will be taking the receiver from the house to use in the camper.
Bill I apologize! I spent the past weekend helping my nephew while he dialed in his Dish system and had the 311 receiver burned in my brain.
The Directv receiver I have is a D12-700. This is , as I'm sure you know, a SD receiver. But, the lnb I mentioned is mounted on both the house dish and the portable dish. The tag says - Dual LNB - Model ZKF-G52N on both dishes.
on edit - I see in my original post that I left out a letter in the lnb model number, a G. I promise I haven't been drinking, yet!! lol