[TenTec] Re. [Ten Tec] Grounds and balanced fed verticals

[Joel Hallas]

Steve,

Well keep in mind that everything here is close to being matched. The
generator was delivering all it could to the optimum load that was presented
to it. Think transmitter - transmission line - tuner - antenna. 

End of story.

Regards, Joel Hallas
Westport, CT


-----Original Message-----
From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com]
On Behalf Of Steve Hunt
Sent: Friday, January 27, 2012 5:24 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Re. [Ten Tec] Grounds and balanced fed verticals

Joel,

Then that puzzles me even more !

If you made a change to the line and then adjusted the single tuner at 
the load end, the impedance terminating the line changed. If the 
terminating impedance changed and the line remained matched, the load 
seen by the generator changed. If the load seen by the generator changed 
then so did the power it delivered to the system.

That suggests that some of the level change measured on the 
microvoltmeter might have been due to variation in generator output 
rather than changes in line loss. It seems to me that another tuner at 
the source end would be essential to ensure that the generator always 
"sees" 50Ohms, and always delivers the same power to the line.

Or did I misunderstand something?

73,
Steve G3TXQ

On 27/01/2012 21:47, Joel Hallas wrote:
> Steve,
>
> I stand corrected, my memory is good but short<g>. I went back and looked
> at the article. The single tuner was at the far end. That did make it
easier
> to adjust it while looking at the uW meter. At maximum output, it still
> reflected an impedance back to the generator that provided maximum output.
>
> Regards, Joel Hallas, W1ZR
> Westport, CT
>
>
>
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