[Elecraft] KX1 still Low Power

[Phil Wheeler]

Thanks for that data point, Ron:  First I've seen for the KX1.

So I am OK on 40 (can get to 4.4 W), low on 20 (max is 3.2 W) and TBD on 
30 (in the process of installing the 30 m module now).  I wonder what I 
could change to increase 20 without changing 40?  Compressing L2 went 
the wrong way.  BTW -- L1 and L2 are OK turnwise.  Perhaps fiddling with 
the transformer is next .. assuming I care about the differnce between 
3.2 W and 3.8 W :-)

I will rethink all of this after I get the 30 m band going.

BTW .. is your data with or without the atu installed?  Will that make a 
difference?

73, Phil

Ron D'Eau Claire wrote:

>Well, if it helps establish expectations of "adequate" at all, my S/N 004
>does the following with 13.8 vdc applied:
>
>40: 4.1 watts
>30: 4.8 watts
>20: 3.8 watts
>
>I believe that it's normal (the way the output network works) to see a
>"peak" in the 30 meter range.
>
>My dry cells are wiped, only producing about 6.8 volts. This is what I get
>on them:
>
>40: 1 watt
>30: 1.2 watts
>20: 0.7 watts
>
>As I recall the output is in the 1.3 to 1.7 watt range with fresh batteries
>installed. 
>
>
>Ron AC7AC
>
>-----Original Message-----
>I fiddled with L2 and compressing the turns increased the difference 
>between 40 and 20.  so I went back to where it was originally.
>
>Conclusion: I have R4 set to I have 4.2 W on 40 (a tad high) and 3.1 W 
>on 20 (in the 3-4 W range) -- this with a 13.8 V supply.
>
>I'm going to leave this as is and move on.  I would like 20 and 40 to be 
>closer to one another, but it seems I am out of parameters to adjust, 
>unless L1 would have some effect.  I will go back and make sure I do not 
>have L1 and L2 interchanged or some such.  But if not, I am moving on to 
>the 30 m module and the atu.
>
>73, Phil
>
>
>
>  
>


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