[time-nuts] cheap 5V OCXO in 14DIP has about 1E-9 drift per day

Charles P. Steinmetz charles_steinmetz at lavabit.com
Thu Apr 7 19:55:15 UTC 2011


>I wonder if "conjugate regenerative divider" qualifies as an
>inexpensive converter

As we used to say in racing, "Speed costs money.  How fast do you want to go?"

CRDs are not particularly expensive, especially when you consider the 
performance and what it would take to achieve that performance with 
other solutions -- assuming you need/want that performance (and what 
kind of time nut would you be if you didn't?).

However, I'm not convinced that a cheap (or even free) 26 MHz 
oscillator plus a downconverter will be less expensive for a given 
level of performance than just buying a decent 10 MHz OCXO in the 
first place -- I've bought quite a few very nice ones on-line in the 
$20-50 range.  Mark Sims has suggested some as well (check the list archives).

Best regards,

Charles









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