[R-390] Antenna matching

[Rick Brashear]

I am curious as to the different methods in use to more closely match 
the unbalanced antenna input on the R-390?  I am using, at this time, a 
Butternut 40/80/160 vertical that has an impedance of approximately 50 
ohms.  The antenna trim control helps considerably, but it seems more 
could be done.  I have a  wire I will be installing soon, but it too has 
a feed point of 50 ohms.  I am assuming the best method would be to use 
a dipole and ladder line, but I have no plans at this time to do that.

Any suggestions?

Rick/K5IZ