[Antennas] tuning a TH6DXX

Sat Jun 11 16:28:55 EDT 2005

I also mounted my TH7DXX pointing straight up to the sky and my antenna
analyser indicated that the factory settings were spot-on.
Of all the methods that I have used in the past to tune yagis, this method
is the easiest, most accurate and consistent.
Deon ZS1ZL
----- Original Message -----
From: <paul at w8aef.com>
To: "John Luthy" <jluthy at worldnet.att.net>; <Antennas at mailman.qth.net>
Sent: Friday, June 10, 2005 5:21 AM
Subject: Re: [Antennas] tuning a TH6DXX
I suspect there may be something under the surface of the roof that is
messing you up. I would move it back to the ground and point it straight up
for the SWR observations. Stick a tube or something in the rear end of the
mast to keep the reflector up off the ground and use some rope to hold it
vertical.
This is the method I have used on all of my yagi's and it works great. The
4 element 20m monobander on the 41 foot boom was a challenge, but it did
work.
And my observations held when I got the antennas on the tower.
de Paul, W8AEF
----- Original Message -----
From: "John Luthy" <jluthy at worldnet.att.net>
To: <Antennas at mailman.qth.net>
Sent: Friday, June 10, 2005 1:00 AM
Subject: [Antennas] tuning a TH6DXX
>I need advice on tuning this antenna TH6DXX I have followed the
> instructions very carefully to set it in the phone band, However the
> 20m "sweet spot" is in the cw portion. Here are the frequencys where
> I get the lowest SWR