[TowerTalk] My results with the QSO King 125' antenna

[Mike Ryan]

Sounds similar to a Carolina Windom (off center fed dipole sold by the Radio 
Works). - Mike

-----Original Message----- 
From: Jim in Waco WB5OXQ
Sent: Wednesday, March 12, 2014 8:27 PM
To: towertalk at contesting.com
Subject: [TowerTalk] My results with the QSO King 125' antenna

I just want to let you know how well my antenna works.  I compare it to my 
other wire antenna a 135' doublet fed with 300 ohm window line intlo a 
Dentron MT3000A tuner.  The dipole center is 55' and the QSO King fed end is 
at 50'.  The dipole ends are 20' and the far end of the QSO King is at 30' 
The Coax on the QSO runs 50' straight down to the ground and turns right 2' 
to the outside wall of the house and runs 20' along the ground to a wire 
spool where about 25' are wrapped around the spool and the remaining 5' go 
into the shack to the tuner.  There is a 14ga solid insulated wire on the 
ground terminal straight down beside the coax where there are 450' of 
insulated radials stapled to the ground in as many directions as possable. 
Some are only 25' others are as long as 60'.
Both antennas will tune 160-10 with the Dentron tuner.  The internal tuner 
in my TS-2000 can only be used with the QSO King because the dipole is 300 
ohm.  On some bands 20-15 the QSO King barely needs tuning at all.  I can 
tune the lower end of 6 meters on the QSO King with the internal tuner.  6 
meters is outside the tuning range of the Dentron tuner.
Performance is in most bands pretty equal both transmitting and receiving. 
Sometines ther dipole is very slightly better but others the QSO is better 
but neither wins by much.  On a nightly 75 meter net I work stations in many 
states from my Central Texas home mostly using the QSO King and run a 
killowat and get 40 over s9 reports from nearly all stations.  The QSO King 
antenna can be used in all weather but the dipole can not be used when windy 
conditions blow the feedline against the support tower and the swr fluctuats 
too much.  Over all I am very pleased with the antenna.  Jim WB5OXQ

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