Hi Mike the problem with this is it becomes a narrow band antenna which is
not what JB wants.....It also destroys its action as a "travelling wave"
antenna. It will then be a heavily top-loaded but very low "L" . It might
even be worse than as it is !! I dont know what happens if he uses
distributed loading, it then looks like a low-pass filter!!
Alan G3NYK
----- Original Message -----
From: "Mike WE0H" <[email protected]>
To: <[email protected]>
Sent: Tuesday, January 22, 2008 2:19 PM
Subject: Re: LF: Fenceline longwire
> What if JB put a big loading coil in the fence wire? I would think that
> would work just like our loaded short verticals...Sure there would be
> losses but we have losses in our transmitting antennas also.
>
> Mike
> WE0H
>
>
> Rik Strobbe wrote:
> > J.B. ,
> >
> > I simulated the fence wire with MMANA.
> > On HF (80m, 40m) I got the expected (bi)directivity and low offset
> > angle.
> > But on 500kHz the horizontal pattern is almost omnidirectional and the
> > offset angle is 78 degrees.
> > It seems that (at least in theory) even 1200 foot is too short to be
> > long on 500kHz ...
> > Or does MMANA not work properly ?
> >
> > 73, Rik ON7YD
>
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