[Elecraft] KX3 anormal output voltage reading

JEAN-FRANCOIS MENARD jf.va2ss at gmail.com
Sun Jan 26 20:31:06 EST 2014


Hi Don,

I did the procedure on page 33.

On the 4W test, these bands failed with the error code ERR TXG D=0000

Bands that failed are 60m, 40m, 20m, 17m, 12m

On the 6W test, all bands passed the test.

Regards,

===

Jean-François Ménard / VA2SS



Le 2014-01-26 à 20:12, Don Wilhelm-4 [via Elecraft] <ml-node+s365791n7583337h65 at n2.nabble.com> a écrit :

> J-F, 
> 
> Do you have an early KX3 that was a kit?  If so, the Transmit nulling 
> procedure may not have been done at the factory as it is now done for 
> KX3 kits as well as factory builds.  Check page 33 of the manual that 
> shipped with your KX3.  If you have that procedure listed in the manual, 
> try to do the steps, I believe it has a good possibility to solve your 
> problem. 
> 
> 73, 
> Don W3FPR 
> 
> On 1/26/2014 7:49 PM, VA2SS wrote:
> 
> > I found my problem with my recent KXPA100 purchase. 
> > 
> > My KX3 always have voltage reading on the antenna port even if the power set 
> > is set to 0. 
> > 
> > I found this when pushing the MIC PTT only. I am able to read approximately 
> > 9V on the Elecraft DL1. The KX3 always show RF bar on the display of about 
> > 3W !!!! 
> > 
> > Even without the mic, I still have a reading. Power set from 0 to Max always 
> > gave me in SSB a strange reading of 9V without talking. 
> > 
> > This seems to be RF or something. 
> > 
> > I removed every options that was installed : roofing filter, antenna tuner, 
> > battery charger. 
> > 
> > I also removed the RF board and instead of using the Elecraft BNC with the 
> > filter & toroïd , I connect directly the dummy load to the block header on 
> > the RF board inside the KX3. 
> > 
> > I still have a 9V or so reading when pushing the PTT in SSB without talking. 
> > 
> > At this moment, this prevent me of using my KXPA100. 
> > 
> > I hope someone could help. 
> > 
> > 73 
> > 
> >
> 
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