[Elecraft] KXAT1 with dipole

[Don Wilhelm]

I believe two points need to be made about this:
First, if the SWR on the feedline was 1:1, changing the length of the
feedline would have no effect.  The conclusion is that the original SWR had
to have been something other than 1:1.
Secondly, the inductance and capacitance range of the KXAT1 is limited (3
inductors and 3 capacitors), the result of that is the impedance matching
range decreases as the frequency is reduced.  On 80 meters, the matching
range is quite narrow, a bit better on 40, but on 30 and 20, the range
becomes broader so that one can match most anything on 20 meters.

73,
Don W3FPR


> -----Original Message-----
> Sorry Karl-Ron had it exactly right.Feedline length is always a
> potential factor; I've run into it before and just forgot.Both with
> coax and ladder line sometimes you have to add or subtract a bit for
> impedance mismatch. You can look it up in the ARRL handbook In fact,
> you can even do a fair matching job with ladder line bypassing a
> tuner with the correct lengths.I added two feet of feedline and it
> loaded right up sweet as pie. I also should have realized it wasn't a
> shorted feedline as it still took some power and signal strengths
> were not hugely different as when there's nothing connected.
> --
>