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[TowerTalk] TopBand: Antenna Tuner for Zepp

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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 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 (
>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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