> I was thinking of using a Datum 1000B Ultra Stable Oscillator (the one > used in the FTS 4060 Cesium standard). The data sheet says that after a > few years the aging rate gets down to parts in E-12/day. I would think > that the Allan plot would be cleaner if the control voltage was well > behaved than if it was derived from a noisy process like GPS or maybe > Cesium.
The 1000B makes a good standalone standard. What tau range of the Allan plot were you thinking of making cleaner? Note that frequency standards like the HP 105B use a very clean control voltage: a 10k pot. /tvb _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts