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[TowerTalk] TopBand: Antenna Tuner for Zepp

To: <towertalk@contesting.com>
Subject: [TowerTalk] TopBand: Antenna Tuner for Zepp
From: btippett@CTC.Net (Bill Tippett)
Date: Thu, 12 Jun 1997 07:28:49 -0500 (EST)
The following message was posted on the Topband reflector.
I suspect that there are some of you on Towertalk that could
help this guy so I'm posting it here as well.  Please reply
directly to hl5bpl@www.hdpic.co.kr and NOT to me!   73,  W4ZV

>Hi, all!
>
>Greetings from Korea.   I recently subscribed to the list.
>
>I installed a half wave length Zepp (over 80m long) for 160m 
>on the top of 20th floor aprtment house and I fed it by 450 ohm
>ladder line(ready made one) with end-feed style because 
>center-feed is little bit difficult for my location.
>
>I tried to tune the zepp with my homebrew tuner for all HF bands.
>My tuner has "SPC" transmatch configuration with 4:1 toroid core
>balun incorporated.
>
>I found out tuning avove 40 meters are impossible.
> 
>I believe this kind of antenna configuration needs real balanced 
>tuner with capablity of switching between serial and parallel 
>tuning according to the impedance of each bands.
>
>I tried to find out any references for this situations, but failed.
>
>Does anyone can comment me?   Any Inernet sources for constructing
>such kind of tuner?
>
>73!  HL5BPL from Ulsan, Korea (hl5bpl@www.hdpic.co.kr)
>
>
>P.S. Frequency range of 160m for Korean (HL and DS) stations are 
>     1.800 thru 1.825 MHz and there are very low activities
>     currently on this band.
>
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>


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