Can I still use my old Winegard antenna that I got with Voom when I hook my old Dish 301 receiver back up. I was using a diplexer with the Voom receiver but I don't know if the 301 can be used like that. I really do want to run two separate cable from the dish but I thought I might save some money on local channels if I can get them with the Winegard and not have Dish provide them. Thanks for any advice.