[Elecraft] RE: Effective Antennas for use with K2 ATU

[Don Wilhelm]

Nicholas,

You can't get much better or more simple than a dipole.  Get it up as high
as possible and feed it with parallel line.  44 feet is a great length for
40 thru 10 meters and will do 80 meters in a pinch.  Can you get one end to
the peak of the roof?  That may give you the extra distance needed for a
straight run, but lacking that, fold the ends downward and get as much of
the full length up as high as possible.  The ATU will handle it fine - use a
balun at the shack - you may want to equip youself with both a 1:1 balun and
a 4:1 balun, the one that will work better depends on the band and the
length of your feedline, so you may have to experiment a bit with the shack
end of the feedline.

For portable operation, the same answer applies, but if you can find no
suitable supports, perhaps a vertical is the better answer - use a 22 foot
vertical wire or tubing and use one or more 22 foot lengths of wire as
radials.  Feed with parallel transmission line the same as the dipole and
you should have an effective antenna.

73,
Don W3FPR

----- Original Message ----- 
>
> My K2 is complete and I will finish the auto ATU tonight. I am sure this
is
> FAQ please feel free to refer me! So, here goes..
>
> What simple Antennas would you recommend for use with my K2 and the built
in
> auto ATU for
>
> 1. Base station use, a small back garden 30ft by 22ft? My "shack" is on
the
> first floor in a room facing the garden. At the moment I have no holes in
> the wall!! If I have to run wires around the window frame to start with
that
> is fine. Just keen to get going!!
> 2. Portable, by the seaside or in a pub garden?
>
> Thanks!
>
> Regards
> Nicolas
> www.m1hog.com
>
>
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