Thanks a million Piggie! I do appreciate all the help you give to everyone on the board.
What you say about the distance between the antennas and that it could vary some seems spot on. I measured one of my U4000's and it's exactly 20" wide from reflector element tip to reflector element tip. Then I looked up the U8000 and it's 40.5" wide, so that model has a half inch cap between the two antennas.
Looking up Antenna Directs DB4, it's 19" wide while the AD DB8 is 42" wide so it has a 4" gap between the antennas.
I'm also going to try to hook them together like they do the U8000 so as to avoid using two baluns, two cables, and a combiner. Should get less signal loss if that works. If not then it's two baluns, two cables, and a combiner.
And Thanks Again. You're the bestest
