[Elecraft] K3 cleanest signal possible

[Matt Zilmer]

Hi Kjeld,

One thing I do here is run the input voltage at 14.5V.  The K3 can
accept up to 15V, and the 0.5V gives the power supply some margin for
overshoot.  

This station is on solar power, so its "natural" voltage is 13.6V.  I
use an N8XJK battery booster to get the 14.5V to the K3.  The battery
is an Optima D-series, rated 75 AH.

The more voltage range the K3 works with, the better the IMD.

73,
matt
W6NIA


On Mon, 19 Jan 2015 18:10:57 +0100, you wrote:

>Dear all,
>
>I have a K3/100 and an Acom 2000A and I am wondering how to get the cleanest
>signal. The K3 is supplied with 13.8V. 
>I see several options. Adjusting the K3 to 9W thinking that the KPA100 does
>not kick in could be one method. Another one could be adjusting the K3 to
>14W thinking that the KPA100 will be running very easily (and clean). A
>third one could be adjusting the K3 to 40W thinking that the KPA100 will be
>running in the middle of its power range (and therefore being very clean).
>I do not have the technical knowledge to decide which option is relevant. 
>Of course I know that the output from the Acom 2000A will vary very much
>according to the selected output from the K3. 
>Vy 73 de OZ1CCM "Kel"
>
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Matt Zilmer, W6NIA
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