[Elecraft] K2 and the KPA100 Power Fluctuation - Another Follow up

Sat Jun 14 21:12:00 2003

I almost did that but then deceided to do it the hard way :)

--- Michael Harris <[email protected]> wrote:
> G'day,
> 
> Another one bites the dust.....  Niggle, that is.
> 
> Based on comments read I took the simple route and just removed the
> bottom
> cover extracted R98, trimmed the leads of a 1kohm resistor, dropped
> it in
> place and soldered from the same side.
> 
> Confirmed that I could still hit 10W on 10 metres.  Fired up the
> KPA100 and
> bingo, rock steady power.  A good 15 minutes work by any measure.
> 
> Anyone without the KPA100 wouldn't understand the hassle factor 'cos
> it
> isn't particularly noticeable with the basic K2.
> 
> Regards,
> 
> Mike VP8NO (IOTA SA-002)
> GQRP 10148
> QRP-Canada #57
> K2/100 #1400
> 
> > As per the Tech Note: "Your goal is to find the largest value of
> R98
> > (up to 1 K) that allows for the desired maximum power output on 10
> > meters using TUNE. Try various R98 settings until you find this
> value."
> >
> >
> > The tech note said to use a 1K max pot but I could not achieve
> enough
> > range, My final measurement came out to be 2.18k, I then installed
> a
> > 2.15k (2.2k that measured out to be 2.15k) resistor in it's place.
> >
> >
> > Closed up the case and the Fluctuation is gone.
> 
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=====
Harry - AB2PN

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