I agree completely George. I have one of those transmission line
dipoles myself ! :) :) :)
73 de Gary. AA2IZ
----- Original Message -----
From: "George, W5YR" <w5yr@att.net>
To: "Gary Hoffman" <ghoffman@spacetech.com>
Cc: <tentec@contesting.com>
Sent: Tuesday, October 15, 2002 10:37 PM
Subject: Re: [TenTec] TWINCOM feedline ?????????????
> Jerry can deal with this at whatever level he chooses, but the short
answer
> is that parallel lines do NOT radiate precisely because they are close
> enough in terms of wavelength for their equal and opposite fields to
> essentially cancel.
>
> As the lines are moved further apart, the "field strength volume" they
> share decreases as does the degree of cancellation. Eventually you have
two
> wires far enough removed that they exert little or no effect on one
> another. And thus radiation occurs from each in the manner of an antenna.
>
> In fact, if you take a parallel-line transmission line and feed it at one
> end and then start spreading the wires apart until they are separated by
> 180 deg, you have a dipole. And they radiate quite well . . . <:}
>
> Visualize an open-wire line with five-foot spacing being used on two
meters
> . . .
>
> 73/72, George
> Amateur Radio W5YR - the Yellow Rose of Texas
> In the 57th year and it just keeps getting better!
> Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
> K2 #489 Icom IC-765 #2349 Icom IC-756 PRO #2121
>
>
> Gary Hoffman wrote:
> >
> > Why would a wider spaced feed line radiate more ? It should not
> > radiate at all, unless you are assuming there is unbalance, or poor
> > construction. But, given proper implementation, it should radiate
nothing.
> >
> > 73 de Gary, AA2IZ
> >
> > ----- Original Message -----
> > From: "Dr. Gerald N. Johnson, electrical engineer" <geraldj@isunet.net>
> > To: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>
> > Cc: <tentec@contesting.com>
> > Sent: Tuesday, October 15, 2002 1:54 PM
> > Subject: Re: [TenTec] TWINCOM feedline ?????????????
> >
> > > The wider the space the more the feed line radiates.
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