[Elecraft] K2 drif problems?

Sun Dec 15 13:19:00 2002

I've only operated my K2 in the house where the temperature only varies a
few degrees F.
Running 5-10 W, I haven't noticed more than 20-30Hz drift on WWV for hours
at a time.

I have removed one xtal from the Reference Oscillator, but I've still got
the original BFO coil
in K2 #2856.  My drift is so small now it would be hard to detect any
improvement.

Just an idea for the K3 would be to use a TXCO and mux the oscillators into
the freq counter
so the software can calibrate and make long-term corrections automatically.

73/ Bob - AG5Q

----- Original Message -----
From: "Joe Malloy" <[email protected]>
To: "Eddy Avila" <[email protected]>; <[email protected]>
Sent: Sunday, December 15, 2002 11:31 AM
Subject: RE: [Elecraft] K2 drif problems?

> Eddy, let me give you my take on the K2's drift "problem": I don't really
> notice it.  I operate mostly CW, some SSB and the drift issue is not an
> issue for me.  I also have a Ten-Tec Jupiter, which has a TXCO, and
frankly
> I can't tell the difference between the two (except that the K2 has a
better
> receiver!).  If that's the only thing keeping you from building one, don't
> let it stop you any longer.  Only  if you expect no drift at all (an
> impossibility!) would I shy away from the K2.
>
> 73,
>
> Joe, W2RBA
>
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]]On Behalf Of Eddy Avila
> > Sent: Sunday, December 15, 2002 11:42 AM
> > To: [email protected]
> > Subject: [Elecraft] K2 drif problems?
> >
> >
> > Elecraft reflector question.....
> >
> > I've seen a lot written on this reflector about frequency-drift
> > problems in
> > the K2 (and some fits for this problem) - I don't yet own a K2 -
> > but I'm now
> > wondering if this is a significant problem with the K2 that should be
> > considered before purchasing the kit?
> >
> > Now, I've been a licensed ham since the early 60's and I've owned
> > plenty of
> > rigs that drifted a lot and this was ok and acceptable given the
> > technology
> > of the times! But, with modern osc circuits nowadays I've grown
> > accustom to
> > expecting no or almost no freq drift anymore so I'm a bit
> > concerned why the
> > K2 (otherwise a killer rig!!) would even have a
> > frequency-stability problem
> > at all. This definitely could be a pivotal issue as to whether I
> > buy a K2 or
> > not...
> >
> > Thanks in advance to anyone offering your honest (no flaming
> > please, I'm an
> > ardent Elecraft fan!!) opinion on the subject helping to enlighten me on
> > this problem!
> >
> > 73....ed
> >
> >
> >
> >
> >
> >
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