[time-nuts] Wenzel 100 MHz Oscillators (w/ EFC) available

Gerhard Hoffmann dk4xp at arcor.de
Fri Dec 5 19:29:00 EST 2014

Am 05.12.2014 um 23:54 schrieb John Miles:
> I have a few of the 500-6769 parts here, and measured a couple of them awhile back:
> http://www.ke5fx.com/Wenzel_500_06769_PN.png
> Not a bad price at all.  If a $2000 OCXO can achieve -140 dBc/Hz at 100 Hz and a $50 OCXO will do -117, that's almost 10 dB better than the expected 20*log10($2000 / $50) ratio. :)

Ok, not an oven, but @100 Hz offset, that ElCheapo Crystek is on par.
If it was a few dB better far out, it would outwenzel the Wenzel, 
-117 is not a heroic deed. And the oven makes it easier to get along with a
smaller tuning range, that helps a lot. Just forget these temperature corner
cases that are major stumble stones in XO design.


regards, Gerhard

More information about the time-nuts mailing list