[Elecraft] KXPA100 et Smarttuner SG230

[Dick Dievendorff]

We have beta firmware for the KXPA100, now revision 1.28, that causes the KXPA100 to be much more tolerant of SWR and reflected power encountered while tuning an external tuner.  As others have suggested, set TUN PWR to a low value between 5 and 20 watts depending on the needs of your tuner, but normal Tx power can be  left at 100 watts.  The KXPA100 won't tolerate without faulting really high reflected power (above 50 watts) or long duration reflected power above 20 watts or so.

See the KXPA100 firmware page on our website.

73 de Dick, K6KR

> On Apr 9, 2014, at 1:50, Luc Favre <luc-favre at orange.fr> wrote:
> 
> Hello,
> 
> My configuration : KX3, KXPA100 (with KXAT100, not used in normal operation), coax line, SG230 (Smartuner), doublet.
> 
> My question :
> In way to tune the Smarttuner, I must send some RF into the Smartuner via the coax line. Before the tuning process begins, the SWR in the coax line to the Smartuner may be very high. In this case, the KXPA100 goes into Fault Condition ("Err Ant") ; no RF more, the tuning process stops.
> 
> Roundabouts :
> 1. PA off (via menu), tuning with KX3 barefoot.
> 2. KXAT100 on, KXAT100 tuning, Smartuner tuning, KXAT100 off.
> 
> Doing so (1. or 2 above), I can get the Smartuner tuned, but it's a bit cumbersome.
> 
> Any idea ?
> 
> 73
> Luc/F6HJO/HB9ABB
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