[TowerTalk] Open wire

[n8de at thepoint.net]

Assuming you use the antenna on bands other than 80m:

How about option #4 ?

4.  Reroute the open-wire feedline by pulling it aside with a nylon tether.

Used that method for years with a 160m EDZ.  Worked well by pulling  
the feedline to one side at an angle but maintaining the same feedline  
length.


Don
N8DE

Quoting w4lde <w4lde at numail.org>:

> This is off topic but here goes.
>
> I am feeding a 80 meter center feed with open wire, about 100ft feed-line.
>
> Due to some new construction work that is going to start on the back of
> our home this week I am forced to move the feed-line.
>
> The original installation had about 50 ft vertical from the center of
> the dipole and then across and under a raised wood porch and then up to
> a second floor shack.
>
> The porch is going and a new covered screened porch is replacing it.
>
> I have three choices during construction, they are:
>
> 1.  Leave the 100' feed-line coiled out in the yard and not operate.
> (Not a great idea)
>
> 2.  Cut the feed line down to around 50' which would be temporary but
> then I would have to splice it later after construction.
>
> 3.  Coil about 40' near the 4:1 balun, however I am concerned that the
> coiled feed line will act a one big inductor and change and or
> significantly reduce the antenna efficiency.
>
> #3 is the easiest but I am worried about open wire feed-line coiled,
> thoughts please!
>
> 73 de
> Ron W4LDE
>
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