[CQ-Contest] Feeding an 80m Delta Loop

PY1NB - Felipe Ceglia felipeceglia2 at gmail.com
Sat Nov 10 13:27:54 EST 2012

Hi Carol,

For DX usage, a good option is a vertically mounted (base of the triangle
parallel to ground), vertically polarized delta loop.
The best feeding position is 1/4 wave from top to bottom, using 1/4
electric length of 75 ohm coaxial.

If you polarize it horizontally, you will depend on having it very high to
ensure a low radiation angle.


Felipe Ceglia - PY1NB
PR1T team member /// Rio DX Group member /// Araucaria DX Group member
http://dxwatch.com /// http://reversebeacon.net /// http://riodxgroup.com

On Fri, Nov 9, 2012 at 11:39 PM, Carol Richards <n2mm at comcast.net> wrote:

> I am confused. I have an 80m delta loop configured for 3.525mhz. That
> makes each side of the triangle 95 feet. I am going to use ladder line to
> an outdoor tuner. I have been reading all I can on the subject. 1/4
> wavelength down from the top is 66feet. Some say to feed it there, some say
> to feed it in the corner and some say to feed it about 15 feet from the
> corner. Which is optimum for vertical polarization?
> carol
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