No I have not tried it without the "T", understanding it does lose 3 db, but it's run directly into the GRE amp then out to the "T" then out to two scanners, the GRE amp should take any loss out and it is defiantly putting some gain back into it, as I mentioned in a post prior, without the amp it does not receive at all or at least it doesn't seems to.
Coax, Is Commscope 18awg and approx. 50 feet, Should be o.k., it's good heavy coax, believe its from the roll of sat cable the neighbor gave me from his last sat install and the sat company left it behind.
It could be desensitizing with the amp, but like i said, it doesn't seem to receive with out it, but it's very difficult to tell, most transmissions are not long enough to switch off the amp to tell (amp is behind all my equipment).
I am receiving allot of good strong signals with this antenna in civilian air bands (in AM mode) which kind of is confusing since it should be way to short for those signals. But still not strong enough to pick up Any ground towers planes in the air is all I seem to be able to pick up, but I still don't understand why it's picking up civil airband at all, But it does. I have tried other bands as well (public service) and it does not work very well if at all.
Truly not sure what to do with it at this point, but cold weather is setting in and access to the roof will soon be gone in a month or so probably. I have an old discone (missing two disc. and two cone elements) I might put it up there for the winter, Just not sure........
Thanks hertzian for your comments.