Call Dish to confirm. But you should be able to use what you have in the RV with no problem even after you add Dish at home. And you should be able to set up a home account and add the RV to that home account for an extra $7/month (unless the price has gone up). We have had Dish at home for over 20 years and had the RV added to the home account for $7/mo for a number of years before breaking it off as a separate dishformyrv account. Only did that because our daughter moved back in with us and when we traveled and changed our locals it would also affect the home account and she could not get local channels while we were traveling.