I do not know what a "closed array sat antenna" is. But here's what we have. We have two DISH receivers in the house in Oregon and a third DISH receiver in the coach. We can watch TV in the house in three rooms and in the coach in two rooms all at the same time. Our one DISH subscription covers all three receivers. When we're home we usually are watching TV in the house. But we are able to also use the DISH receiver in the coach while it's sitting parked in our driveway. But here's the great part. We have a house sitter who lives in our house year round. When we're gone in the coach for the Winter, usually five months or so, we're watching TV in the coach wherever we are, and he is watching TV in the house in Oregon. The one problem is when we change the locals as we move around in the coach, then he is without locals on DISH because of the spot-beam technique used by the DISH satellite transmitters. He can watch almost all the same channels we get except the local channels from 2 to 80 or so. If he or we put an over-the-air antenna on one of the house TVs, then he could get the locals, just not through the DISH system. The other nice thing is when we have guests from time-to-time, we put them in the "condo." That's what we call the coach when it's home parked in the driveway. In the condo our guests have privacy, their own bathroom, shower and bedroom, and their own TVs in two rooms.
The monthly charge for this is a bit expensive - about $145 - but the subscription is the DISH "Top 250 Gold" package with locals and The Golf Channel.