Thanks for the info on the splitters and combiners.
The CC-7870 isolation combiner is particularly welcome.
I'm gonna try a DB8E. I'll point the edges of its two 4-bays 90 degrees apart as you say (205 & 295 degrees.) If necessary I'll replace the existing combiner on that with the CC-7870. I'm getting a $20 Y5-7-13 VHF antenna and a diplexer to couple the VHF in.
If that does not get me enough signal I will turn the DB8E flat and point it at CoSprngs, then get a CM4228HD to point at Denver. It may then be more problematic on what to do with VHF, since the CM4228HD has some VHF gain.
I'll stick with the attic if I can. Not much metal in my attic to cause multipath.
I'll post how it goes...
Thanks.
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