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Re: [TowerTalk] Th6dxx swr

To: Bob Ortasic <rortasic@neo.rr.com>
Subject: Re: [TowerTalk] Th6dxx swr
From: jimlux <jimlux@earthlink.net>
Date: Tue, 14 Oct 2008 21:30:46 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Bob Ortasic wrote:
>>From KN8M..
> 
>  
> 
> Just finished putting together a th6dxx. I have it on a mast approx 6foot off 
> the ground for testing..
> 
>  
> 
> I cut all three bands for the low end (CW). I don't spend a lot of time on 
> SSB and figured the rig tuner will take care of SSB contacts..
> 
>  
> 
> Using an MFJ SWR Analyzer I find that the resonant freq on all 3 bands are 
> below the bottom edge of the band. I haven't graphed it yet.. But on 20 mtrs 
> am 2:1 at about 14030?? Anyone have any thoughts..
> 

Not surprising that close to the ground, which essentially puts a lossy 
capacitor in parallel with the element. Try pointing it straight up, 
rather than horizontally.


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