[Elecraft] KAT500: Tuning on 6m

[Don Wilhelm]

Bob,

Did you QSY after tuning?  If so that would explain what is happening - 
you may have moved out of the band segment that you used for the TUNE.
See the lower half of page 9 in the KAT500 manual.

You may want to 'train' your KAT500 on all segments of the 6 meter band.
If you have done that already, you may need to contact support.

73,
Don W3FPR

On 7/14/2013 7:43 AM, KD7YZ Bob wrote:
> Howdy K3' people:
>
> There is an 8-element yagi connected to the KAT500 for the K3 internal
> 6m selected 6m antenna.
>
> I set KAT500 default antenna for 6m to Ant2.
>
> On the KAT500 I can press 'TUNE' then tap K3 "XMIT" and the KAT500 will
> usually settle on or about 1.1:1 .
>
> Then when I .run a WSJT, Data, QSO, if the KAT500 is left in "AUTO",
> re-tuning will often take occupy 10 or more seconds of the time before
> the KAT500 finds a place it likes. Often the SWR is then in the RED or
> worse, FAULT. Not very often on FAULT however.
>
> Mostly what I see are SWR's around 2:1 .  (KAT500 in AUTO .
>
> If I put KAT500 in BYP,  the K3 often shows SWR's of 2 to 3.
>
> If left in AUTO, the mismatch is apparent in received audio.
>
> Without the KAT500, the antenna itself exhibits a 1.3 SWR consistently .
>
> The constant re-tuning or irregular attenuation due to mismatch form
> KAT500 is annoying. On a weak-signal QSOit means the difference from
> making the QSO or not decoding.