[Elecraft] K3 + KPA500 + [future] KAT500 AND QSK

[Eric Swartz - WA6HHQ, Elecraft]

The KAT500 works fine with QSK. It will not cause any problems.

73, Eric  WA6HHQ

www.elecraft.com


On 12/22/2011 9:33 AM, iain macdonnell - N6ML wrote:
> It appears that the HF-Auto's method of interrupting amp keying
> involves a separate relay, inside the ATU, that only activates when RF
> is sensed and the tuner considers itself "tuned". This doesn't work
> for QSK, which depends on the amp being keyed *before* RF is
> generated.
>
> I would assume that QSK is included in the design criteria for the
> KAT-500, but we all know what it is to assume, so it's a valid concern
> to raise, IMO...
>
>      ~iain / N6ML
>
>
> On Thu, Dec 22, 2011 at 9:25 AM, Phil&  Debbie Salas<dpsalas at tx.rr.com>  wrote:
>> This sounds strange to me.  Why would the tuner care whether it is in a QSK
>> environment?  I run QSK with my K3, KPA500 and MFJ-998 with no problems.
>> Almost sounds like there is some hot-switching going on that makes the tuner
>> declare a SWR fault.  The tuner should be outside the QSK loop anyway.
>> I.e., the Ameritron QSK5 switches the amp in and out at CW speed.  It sounds
>> like maybe the tuner is right at the output of the PA where it connects into
>> the QSK5.  If the tuner is at the output of the QSK5, I find it hard to
>> believe the tuner would see a problem.
>>
>> Phil - AD5X
>>
>> "I have been following a short message dialog over on the Palstar yahoo
>> group for the new Palstar HF-Auto automatic tuner.  This started with a
>> problem reported that the Palstar tuner does not support QSK which was
>> uncovered when one person complained that the tuner did not work right
>> (would fault) when an external QSK box (Ameritron) was used with the amp."
>>
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