[ntp:questions] how do I lock in average frequency correction

[David J Taylor]

> That's OCXO, oven controlled crystal oscillator.  Why X for crystal?
> Christ if I know.  There's a great article at
>
> http://en.wikipedia.org/wiki/Crystal_oscillator
>
> that includes a table of abbreviations you can refer to.
>
> Cheers,
> Dave Hart

X is easier to write than "Crys" and it's shorter in Morse code as well! 
Likely from the earlier days of radio when many abbreviations and codes 
were used.  73 = best wishes.

73,
David