i've had sucess combining two yagi's pointing in different directions. I just use a regular 2-way splitter at the antennas, with two short coaxial cords going from the splitter to the two antennas.

i have one aiming at Buffalo, and one at Toronto, and it seems to work fairly good. The problem i'm having is CH out of Hamilton, which is all ghosting and weird colours...

i haven't figured out how to combine my CM4228 with my yagi's into my ATSC tuner.

my yagis can pick up the Buffalo stations but not the Toronto ones, so I want to aim my 4228 at T.O. and then combine these two into my tuner. Problem is, the (preamped) CM4228 powers out the yagis, so only the strong Buffalo stations get come through. It also reduces my Toronto recpetion by going through a splitter like this.