[Elecraft] KXB-3080 after modification

[Leigh L. Klotz, Jr.]

OK, call me a nut. I checked my records and used to get 3.5W on 30 and
3W on 40.  So yes, call this a success.
Leigh/WA5ZNU

I wrote:
> I made the drive modification and power output is up, but may not back 
> quite up to what it was before, at least in my recollection, hi hi.
> The instructions didn't call for any realignment afterwards, and I 
> didn't do any.
>
> The power figures below were calculated from the DL1, a DMM, and 
> ATU=CAL, with a 13.2v power supply.
> 80m and 75m were at band edges; others were in the CW portion.
>
> m  W
> 80 2.7
> 75 2.3
> 40 2.9
> 30 3.7
> 20 2.8
>
> The supply voltage measured internally sags a bit more on TX than I'd 
> expect: 0.5v vs 0.1v measured externally, but if I compensate for that 
> and get 13.2V on the internal meter during TX with a variable supply, 
> I still get only 3.0W on 40m, not the 3.5 I was getting before.
>
> On internal batteries, 9.2v RX / 8.1v TX I get respectable results:
>
> m  W
> 80 1.0
> 75 0.9
> 40 1.0
> 30 1.5
> 20 1.1
>
> I would like to get the 3.5-4W output I was used to on 40m, and am a 
> little bit jealous of the reports of others.  I realize it's only 
> 0.8db, it doesn't matter that much, and is likely due only to 
> variation in components, and in fact if it had always been like this I 
> probably wouldn't have given it a thought.  And if indeed there is a 
> problem, it may be unrelated to the 80m option.   Yet it still nags at 
> me.
> Leigh / WA5ZNU
>
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