[Elecraft] KAT500 remote operation

[Don Wilhelm]

Knut,

You might try adding or subtracting feedline at the shack end of the 
feedline to bring the SWR down on those bands.  I would suggest 
experimenting with an antenna analyzer rather than the tuner - you will 
be able to see which way to go for making improvement.

The fact is that the feedline with SWR will act as an impedance 
transformer, and it will be more of a transformer on bands with high SWR 
than on the bands that are better matched.

Some experimentation may be in order.

73,
Don W3FPR

On 12/7/2012 5:52 PM, ab2tc wrote:
> Hi,
>
> Still can't manage to get any improvement doing this. Anyway, right now the
> tuner is doing a great job to my G5RV on all bands except 15m and 80m. For
> those bands the raw SWR is above 12:1 so is outside the design parameters
> for the tuner. These are screen shots for the bands where the tuner is
> finding a good match:
>
> http://ab2tc.getmyip.com/g5rv_10m.png
> http://ab2tc.getmyip.com/g5rv_12m.png
> http://ab2tc.getmyip.com/g5rv_17m.png
> http://ab2tc.getmyip.com/g5rv_20m.png
> http://ab2tc.getmyip.com/g5rv_40m.png
>
> I'll continue to work on the 15m and 80m to see if I can improve it.
>
> AB2TC - Knut
>