[TowerTalk] Shunt Fed tower question

[RLVZ at aol.com]

Hi Guys,
 
I'm shunt feeding a 90' aluminum tower for  160-meters.  .
 
I found the 50 ohm tap point on the tower and have the shunt wire  
connected to the tower at that point.   At the base of the Shunt  wire I'm measuring 
the following:
 
-Rs = 51 ohms.
 
-Xs = 344.
 
-Q = 6
 
-Ls = 30.1 uH.
 
Please advise what I need to add to this circuit... such as: a 30uH  
inductor?  If a 30uH inductor can I easily make one, such as: X turns of  #10 wire 
with a 3" diameter?
 
Thanks,
 
Dick