[TowerTalk] 43' Vertical - Feed Point Tuner or Shack Tuner?

[john at kk9a.com]

The coax loss and antenna impedance are both frequency dependant.  Your 
question is impossible to answer without knowing what bands you intend to 
use with this antenna.

John KK9A



To: Towertalk <towertalk at contesting.com>
Subject: [TowerTalk] 43' Vertical - Feed Point Tuner or Shack Tuner?
From: Richard Thorne
Date: Sun, 01 Feb 2009 09:40:27 -0600

I have a vertical in my backyard that I currently feed at the base with
an SG-239 200 watt tuner.  I want to increase my power from 100 watts to
400 watts.  In order to accomplish this I either need a tuner at the
base like an SG-235 or CG-5000 both expensive.

The other less expensive solution is a tuner in the shack.

So how much loss will I have if I tune a 125' length of coax?  I know it
works as I bypassed the base tuner and used my rigs tuner.  No problem
tuning, I'm just curious how much loss I'll have compared to the tuner
located at the base of the antenna.

Rich - N5ZC