[time-nuts] 53230A weirdness

2017-11-23 Thread Ole Petter Ronningen
Hi, all I've done some experiments on my 53230A, and I've come across an issue I think could be worth knowing about. I have not tested this on other 53230A's - if anyone has a 53230A and some spare time, I'd be grateful if someone could try to replicate. In a nutshell, the first frequency measur

Re: [time-nuts] 53230A weirdness

2017-11-24 Thread Magnus Danielson
Ole, Is this part of the behavior that the Norwegian NMI was presenting at a poster session at EFTF 2016 in York? I remember they borrowed your 53230A for that work. Cheers, Magnus On 11/23/2017 09:05 PM, Ole Petter Ronningen wrote: Hi, all I've done some experiments on my 53230A, and I've

Re: [time-nuts] 53230A weirdness

2017-11-24 Thread Ole Petter Ronningen
Hi Magnus No, I believe this is a separate issue. The data for that paper was collected gap free, and was not affected by this particular issue. It may be related somehow - as presented in that paper, data collected in CONT mode shows a slope of tau^-1/2 on ADEV. Data collected gap free in RCON-

Re: [time-nuts] 53230A weirdness

2017-11-24 Thread Ole Petter Ronningen
Although, as I read the paper again, it is possible that the frequency bias in the 10 second CONT-mode measurements could come from this effect. That particular series (and only that) was collected using TimeLab. I supplied them with a custom compiled driver that does not use repeated calls to REA