I believe what I want exists but I haven't been able to find it yet.
Briefly; I have two, soon to be three wire antennaes each connected 
by an approximately fifty foot length of coax, out of the shack, 
through the utility room, through the crawl space and then 
outside.  My hope is to consolidate the coaxes to one, have an 
automatic tuner just inside the PVC where the wires leave the house 
and do my tuning/switching at that point.
It is my belief that a tuner exists that will meet my criteria.  Or 
is it just in my mind!
Is anyone using such a beast and if so, can a total positively know 
which antenna is connected?
Thanks a lot.
Pat, K9JAU