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Re: [TowerTalk] Stubs

To: "Tower and HF antenna construction topics." <towertalk@contesting.com>
Subject: Re: [TowerTalk] Stubs
From: Dennis Vernacchia <n6ki73@gmail.com>
Reply-to: "Tower and HF antenna construction topics." <towertalk@contesting.com>
Date: Tue, 2 Feb 2010 20:38:13 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Warren,

 Interesting thread

Just wondered what years you were in Hawaii as Pac Mars Dir

73, Dennis N6KI

On Tue, Feb 2, 2010 at 8:35 PM, <warrenwolff@aol.com> wrote:

>  Interesting comments about a stub at low impedance output of an amp.
>
> Many years ago, I was the Pacific Area MARS Director in Hawaii.? Our
> 40 meter BC-610 had a strong 2nd harmonic overriding our 20 meter
> operation.
>
> I put a shorted stub at the output of the 40 meter rig, and monitored
> the 2nd harmonic levels while driving pins in the coax.? The 2nd harmonic
> levels dropped one heck of a lot, enabling 20 meter operation once again.
>
> The BC-610 output, I believe was a link (Lo-Z).
>
> Regards,
> Warren; W7WY
>
>
>
>
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