[Elecraft] Re: KX1 Help (Paul Gates, KD3JF)

Paul Huff phuff at mi.rr.com
Sun Aug 10 08:05:27 EDT 2008


Hi Paul,

I'm not sure that I really have an answer to your question other than to 
raise the possibility that you might not actually have an issue with the 
output power of your KX1.  How are you measuring the output power?  I have 
found that the KX1's own display of output power is very dependent on the 
antenna match.  If the SWR is even a little bit higher than 1:1 the bar 
graph will not give you an accurate reading.  Now if you are measuring your 
output power with an external meter and into a good dummy load then you do 
have an issue to work on.  If that is the case I'm afraid that I don't have 
the expertise to help you.  I know that the spread of the turns on some of 
the torroids in the KX1 can impact the output power.  There have been 
postings on this that you should be able to find in the archives.  Hopefully 
someone with more knowledge on this will be able to give you some 
assistance.  With 13.7 volts my KX1 outputs 3-4 watts into a dummy load 
(somewhat depends on the band), and with 12 volts its 2-3 watts.  Good luck.

73,
Paul - N8XMS

> What can I do to get more output on my KX1 on 20 meters?... Would
> like more than 1.5 to 2 watts. Am using 13.5 V battery.
>
> Paul Gates, KD3JF



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