I noticed my Z3815A was show 0ns (zero) for predicted uncertainty tonight. Is there something wrong or is its predicted holdover uncertainty below measureable (displayable) value? Is there a pForth command that would give me an accurate figure for PHU? My 5 other Z3805A smartclocks are all in the 100-800ns range as well so I am not sure what's going on up there. New birds? -marki Kind Regards, Mark Stephens Mark Clemens Stephens | Customer service engineer | Non-Stop Computer Ltd * +61 2 9011 8186 | ( +61 428 256 334 | * marks@non-stop.com.au<mailto:marks@non-stop.com.au> Non-Stop Computer PTY LTD 79 Devon St North Epping NSW 2121 Australia Timezone: AEST (UTC +10) Email: service@non-stop.com.au<mailto:service@non-stop.com.au>

Hi The holdover prediction is entirely dependent on the OCXO and how it's behaving. Your OCXO likely had a pair of events that caused the aging estimate to get very low. Bob On Jun 28, 2013, at 8:16 AM, Mark C. Stephens <marks@non-stop.com.au> wrote: > I noticed my Z3815A was show 0ns (zero) for predicted uncertainty tonight. > > Is there something wrong or is its predicted holdover uncertainty below measureable (displayable) value? > Is there a pForth command that would give me an accurate figure for PHU? > My 5 other Z3805A smartclocks are all in the 100-800ns range as well so I am not sure what's going on up there. > New birds? > > -marki > > > > Kind Regards, > Mark Stephens > > Mark Clemens Stephens | Customer service engineer | Non-Stop Computer Ltd > * +61 2 9011 8186 | ( +61 428 256 334 | * marks@non-stop.com.au<mailto:marks@non-stop.com.au> > > Non-Stop Computer PTY LTD > 79 Devon St > North Epping > NSW 2121 > Australia > Timezone: AEST (UTC +10) > > Email: service@non-stop.com.au<mailto:service@non-stop.com.au> > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.