[Elecraft] KX3 Field Ant. for 80/40/30

[Erlend Grimseid]

Hi.
Feet is not my everyday system for length measure, but i think it
transelate to very close to an full wave length on 40m and close to an half
wave on 80. That is an tough match for any tuner. Even so,  with the
transformer and the coax I think it should have given better results than
6.4:1 on most bands.

Did you have an choke between the coax and the radio/tuner? That might be
worth a try.  Also I would look for malfunction somewhere.

BUT. To answer your question. My go to antenna for the lower bands is an
simple dublet, feed with some old army field telephone  wire. It's an
twisted pair of multi strand wire. I belive it has four strands of copper,
ant three stainless steel, but I might be mistaken. The dublet is 2x20 (
aprox) meters. Might be worth a try.

La4tta Erlend



18. nov. 2017 10:37 p.m. skrev "JT Croteau" <jt.tobit at gmail.com>:

Friends, what would be a good end fed wire setup that will match well
with the internal KX3 ATU and cover, hopefully, 80, 40, and 30 meters?

I went out to my winter camp site, with two really tall pine trees,
and tried to experiment with a 9:1 UNUN, 135' radiator, and 35' of
RG8X.  It was a total disaster.  Best matches were on 20, 17, and 15
meters but only with 6.4:1 SWR.  No match at all on the lower bands.
With my two trees, the radiator made for a perfect inverted-L shape.

What should I try next?  I did try some pruning of the antenna but
quickly gave up due to the WX conditions.

Thanks
N1ESE
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