Tom Van Baak wrote: > Also an idea - is there an easy way to artificially increase Vref > noise, by say 10x, so one could see if that change made any > measurable change in OCXO output ADEV or phase noise? > > /tvb > Tom
1) Increase the cutoff frequency of any low pass filter used. 2) With a discrete zener reference is to use a very low zener current. 3) Use a reverse biased base emitter junction of a small signal transistor as a zener at low current (don't reuse the transistor for small signal applications afterwards). 4) Inject noise from say a pseudorandom noise generator via a resistive network in the EC line. If you havent got a pseudorandom noise generator (or one of the pseudorandom noise generator chips that chips National Semiconductor used to sell) you could try the method suggested in: http://www.edn.com/article/CA200385.html Bruce _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
