Gents,
This is an interesting antenna idea, and I did a quick EZNEC/TLW look on the
5 major HF bands. Unfortunately, the SWR ranges from a low of 5:1 (80 and 10
meters) to 11:1 on 40. 100 feet of RG-213 will have a loss of more than 2 dB
on all bands, except about 1 dB on 80.
An alternative, and what I am using here, is to feed the 130 foot cf antenna
with lower loss window line and a balun at the bottom, with a short length
of coax to a tuner. Window line is lighter (less sag), cheaper and has less
loss than coax.
The same discussion about names could take place in the window line realm
<g>!
Regards, Joel Hallas, W1ZR
Westport, CT
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of John F.
Sent: Wednesday, September 10, 2014 10:16 AM
To: tentec@contesting.com; Jim Allen
Subject: [TenTec] Zepp?
Jim,
I like the sound of Zepp better than dipole. Actually it's probably a
matter of semantics, and I'm not going to argue how many angels will fit on
the head of a pin! ;>) There is a reason I called it a zepp, and I think it
was in the 95 or 98 Handbook. Terms many have changed by now.
I actually think it's a dipole only on 80 meters, and technically a doublet
on the other bands! Ooops, I did it!
73,
John, K4AVX
Yes the balun, I think is a 9 to one. It will load and put out a signal on
all bands except 160 meters. Trying to work out an inverted L again on that
band - tricky.
> Message: 3
> Date: Tue, 9 Sep 2014 15:46:59 -0500
> From: Jim Allen<jim.allen@longhornband.net>
> To: Discussion of Ten-Tec Equipment<tentec@contesting.com>
> Subject: Re: [TenTec] Eagle Tuner
> Message-ID:
> <CAO5v6iLk96Oi-DVfpCPLpO35MphtsfoFD7K4MUvGOP9wPokQEw@mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> What makes a 130' center fed dipole a Zepp?
>
> 73 de W6OGC Jim Allen
>
> On Tue, Sep 9, 2014 at 3:44 PM, Rick - DJ0IP / NJ0IP<Rick@dj0ip.de>
wrote:
>
>> That is an excellent setup, John. Nice choice.
>>
>> I'm a friend of that antenna too and have used it most of the time
>> for the past 50 years.
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