Tom, there are so many ways to do this. Like I've said before, it's not easily explained, without writing a book. And I for one, don't want to write a book. It's all been explained before, somewhere in these Forums? It may not be easy to find, but it's there, somewhere? It would be easier for me if you had a direction for me to go by, but you don't? So, I'm going to assume you want to use your current lnb's, which is probably a good idea? And in my assumption that you have servo type lnb's and a feedhorn (on both dishes) with a servo motor to change the polarity of the lnb's. To use these lnb's, you are going to have to get an analog receiver to change the polarity of the lnb's. An analog receiver will also drive the actuator to move the dish. Or you can get a DVB receiver that will change the polarity for the servo type lnb's. There are only a couple (that I know of) that do this. Manhattan is one and some Pansats will (but some won't) and there may be another, but I can't think of any? Manhattan is the only one that has a model that will also drive an actuator. With a DVB receiver you will need a analog receiver to drive the actuator or a V-Box positioner to drive the actuator. As you can see, there are lots of ways you can go. If you're going to have multiple receivers in your house, you could use this diagram if you decide to use analog receivers to drive your dish:
Add a receiver
This is the method I use, with the exception that I use 1x4 high frequency splitters and 4x1 diseqc switches. But, I already had an existing C-Band system, before I got into DVB receivers and FTA. This may not be what you are looking for, until I know a certain direction you are heading, I don't know what to tell you. I'm sure the more I write, the more confused you may get, and I don't want to confuse you. I should stop here, until you show a direction? I would suggest you make one dish work with one receiver and the other dish for another receiver. Then start to integrate the 2 to work to gether along with other possible receivers through out the house? Like I have said before, I don't want to write a book, and a book is probably what you need at this point. So you can see the different ways you could do it, to decide which way would be best for you. I know this is tough on you, but I really don't know which direction to point you in? I don't want to get you going in a direction that won't be best for you. Good Luck Tom..!!!