No choke necessary.
Also, "OCFD" is not = "OCFD"
It all depends on how far away from the middle the feedpoint is.
Now my question to you, Jon:
What is the difference between feeding with coax or Openwire?
Why is it ok to feed it with a coax and not with openwire?
IN FACT, if you study up on the history of the migration of Windom to OCFD,
it was first fed with a single wire, then with openwire, then with coax thru
a balun.
73 - Rick, DJ0IP
(Nr. Frankfurt am Main)
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of k6jek
Sent: Sunday, September 14, 2014 9:02 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Zepp?
OCFD fed with open wire? I suppose everyone else here understands how that
would work but I don't. Wouldn't the imbalance of the antenna turn the open
wire into a radiator or did you have some kind of choke up in the air?
Jon
On Sep 14, 2014, at 11:42 AM, Rick - DJ0IP / NJ0IP wrote:
> Don, you put me on the spot here.
> I have never tried a 44' OCFD.
> I have tried both the 66' and 132' OCFD fed at that split, fed with
> open wire, but not the 44'.
> I don't like to comment on things that I have not actually tried myself.
>
> 73 - Rick, DJ0IP
> (Nr. Frankfurt am Main)
>
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Don
> Jones
> Sent: Sunday, September 14, 2014 5:47 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Zepp?
>
> I like the 44ft doublet idea.
> But I would like to try the OCF method mentioned by Rick DJ0IP.
> Sounds like for a 44 ft OCF antenna the feed point would be 19ft/25ft.
> Correct?
> Hoping I can get 10M to play better and would like better efficiency
> as compared to a 34 doublet on 30M.
> 73, Don
>
>
> On 9/13/2014 7:29 PM, Augie "Gus" Hansen wrote:
>>
>> <snip>
>> Elecraft sells a nice low-power balun that is switchable as 1:1 or
>> 4:1. I have used it for field/portable ops, but it's usually set to
>> 1:1 for the antennas I use (44' or 88' doublet).
>>
>> 73,
>> Gus
>> <snip>
>>
>
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