[Elecraft] Using X-lock to stabilize PLL osc??

[N2PD]

Well, I made some measurements tonite.  Using the k2 counter to track the BFO
and an external counter to track the PLL, I measured from cold start to 45
minutes, with no transmitting.  The results:
PLL drifted 50hz UP, and the BFO drifted 60 hz DOWN.  Perfect for the higher
bands where they almost cancel, but not so for the lower bands where they
add (do I have that right?).
Does anyone have any info on frequency compensating the oscillators using
negative coefficient caps?




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Paul, N2PD
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