Re: [time-nuts] Optical link connects atomic clocks over 1400 km of fibre

You'd need a rather thick copper jacket to shield effectively against the 50Hz magnetic field. Bruce On Thursday, 25 August 2016 3:00 PM, André Esteves wrote: So the way to eliminate that perturbation would be to put a copper jacket over it to attenuate the EM field? André Esteves 2

Re: [time-nuts] Optical link connects atomic clocks over 1400 km of fibre

So the way to eliminate that perturbation would be to put a copper jacket over it to attenuate the EM field? André Esteves 2016-08-25 0:33 GMT+01:00 Bruce Griffiths : > The Kerr effect is Proportional to the square of the field so one would > expect a strong 100Hz component from this. > > The mag

Re: [time-nuts] Optical link connects atomic clocks over 1400 km of fibre

The Kerr effect is Proportional to the square of the field so one would expect a strong 100Hz component from this. The magneto optical Kerr eefect which rotates the plane of polarisation is linear however. Bruce On Wednesday, August 24, 2016 07:04:31 AM Bob kb8tq wrote: > Hi > > I would not ru

[time-nuts] 270 fs clock accuracy achieved at UCLA

This is a nice advance - where do I get one? LOL http://advances.sciencemag.org/content/2/4/e1501489 Russ K0WFS ___ 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

[time-nuts] Confidential -Review Signed Contract

*djen...@ieee.org * *Sent you some files* *OPEN HERE* ___ 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.

Re: [time-nuts] How to get PPS from ublox mini-PCI GPS to APU2 SoC serial port for ntpd

> [I'm responding to the list in case I need correcting] >You started with NTP and my responses have all been in that context. The >Soekris modification is an example of time-nut pursuit of a goal. A side >effect was a very good NTP local clock. If you goal is a very good local >clock then t

Re: [time-nuts] Optical link connects atomic clocks over 1400 km of fibre

Hi I would not rule out line noise into the electronic side of things. Bob > On Aug 23, 2016, at 7:06 PM, Magnus Danielson > wrote: > > Don't over-interpret the 50 Hz aspect, I don't remember those details from > 4.5 months back or so, as I already indicated. I can ask on the details > tomo