Shunt-fed tower

[C. Logan Dietz (KE5FI)]

Steven R. Schmidt wrote:
> 
> I have an Easyway HD 40 (41') crank-up tower that I'm trying to shunt-feed
> for 80 meters.  

I have used many shunt fed towers in the past.  They work very well with 
radials.  I would tap the shunt on to your tower between 20 and 30 feet 
from the ground.  Conduit would be a good shunt, but you can hang some 
old coax away from the tower and use the braid.

It can be tuned by two vacuum variables one in series with the center 
conductor to the lower end of the shunt and one to ground (if necessary).
When it is matched, measure the caps and replace with transmitting 
capacitors.  This also works on inverted "L" antennas too.

Chuck, KE5FI


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