[Elecraft] KX3 SWR display when used with KXPA100

[Edouard Lafargue]

  And as a quick follow-up: when my KXPA100 is off - and my understanding
is that when it is off, it is bypassed with a relay - then I get a very
high SWR on my KX3, whereas if I connect my antenna to the KX3 directly,
then I have a great tuning...

Ed

On Tue, Sep 1, 2015 at 4:18 PM, Edouard Lafargue <edouard at lafargue.name>
wrote:

>
>   A quick question:
>
>  I use a KX3 + KXPA100 as my QTH setup.
>
>  I recently did work on my QTH antenna, and the SWR indicator on my KX3
> now jumps around a lot when transmitting on digital modes, with peaks up to
> 2/3. As does the power output. Audio levels are good though, same as usual.
> And when looking at the KXAP100 SWR LED indicator, it stays at "1" and does
> not fluctuate at all. The antenna is well tuned for 20m and the ATU is able
> to take SWR to 1.1 or 1.0 on that band.
>
>   I am a bit confused: shouldn't the KX3 and KXPA100 SWR indicators show
> the same values? Does the KX3 SWR indicator only indicate the link between
> the KX3 and the amplifier? In which case it should remain at a steady "1"
> all the time, nothing has changed on my KX3-KXPA100 link... Can someone
> shed some light on this behaviour to understand what's going on?
>
>    Ed
>
> W6ELA
>