[Elecraft] {KX1} Antenna Matching Question

[Don Wilhelm]

Stan,

Have you tried the 16 foot counterpoise wire on 20 meters.
I don't know, but it is worth a try.

Is your counterpoise wire on the ground?  If not, that may be the 
difference.  A wire on the ground produces a coupling with Mother Earth. 
  The same wire in the air is just another part of the antenna.

As a fallback, you might want to try something more close to resonance 
on 20.  A radiator 16 feet long and a radial also 16 feet long.  Double 
those lengths for 40 meters.

Bruce Prior - a Field Tester for the KX2 had good luck with a 58 foot 
radiator and a 13 foot counterpoise wire on the ground for 40 through 
10.  Although the KX2 ATU has a much greater range than the KX1, it just 
may work.

73,
Don W3FPR

On 6/9/2017 4:55 PM, stan levandowski wrote:
> When following the instruction in the KXAT1 manual and using a wire 
> between 24-28 feet and a 16' counterpoise for 40 and an 8' counterpoise 
> for 20, the best I can ever get is a 1.6 SWR on 20 and 2.8 SWR on 40.
> 
> I've spent lots of time shortening and lengthening wires and writing 
> down results and I can't hit the magic combination.