[Elecraft] KX3 anormal output voltage reading

[Don Wilhelm]

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
>
>