[Elecraft] K3 vs RigExperts SWR meter issue

Alexander Sack pisymbol at gmail.com
Fri May 13 11:20:23 EDT 2011


On Mon, May 9, 2011 at 6:03 PM, Jeff Cochrane - VK4BOF
<vk4bof.elecraft at gmail.com> wrote:
> Hi Alexander,
> I see this a lot with my K3.
> The truth is that the KAT3 is never really out of circuit.
> The trick is to enable the KAT3 (Hold ATU Tune), use it to show a low VSWR
> to the rigs finals, then disable it (Hold ATU TUNE) again.
> You will then find that the VSWR will presented to the rig will be correct
> as per the analyser.
> I don't why the KAT3 still appears to be in circuit when supposedly switched
> out but at least there is a workaround.

That works!  I tried it last night (been busy).  I had a 1.5 on my
RigExpert and the K3 confirmed it.  You absolutely have to tune it
FIRST or the VSWR will be off.  Seems strange.

@Elecraft (Wayne/Eric/Alan, etc):

Can you confirm this is by design?  :-)

And what does *bypass* do exactly?  I would assume leave the circuit
tuned based on the last push of the ATU button which of course maybe
wrong depending on what frequency you are on (which is why I initially
had a "HI SWR" message.

73

-aps


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