Re: [time-nuts] Frequency deviations in Europe affect clocks

2018-03-08 Thread Bill Hawkins
Well, if you don't pay your bills, the power company can't afford the fuel required to keep up with demand. Stability of the system frequency requires a balance between supply and demand. If the demand exceeds supply then the generators must slow down. In a synchronous network, all generators must

Re: [time-nuts] Frequency deviations in Europe affect clocks

2018-03-08 Thread Hal Murray
If you don't pay your bills, the guy who was sending you power stops sending it so your zone starts running without enough power. -- These are my opinions. I hate spam. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] Frequency deviations in Europe affect clocks

2018-03-08 Thread Forrest Christian (List Account)
When there is more demand than generation, the frequency of the grid drops. My understanding is that one particular country is pulling more from the grid than they are generating, and for political/and or financial reasons which are a bit unclear, noone is willing to generate enough power to

Re: [time-nuts] Frequency deviations in Europe affect clocks

2018-03-08 Thread Andy Backus
Please forgive that I am a lurker and have not contributed. But this last thread caught my eye since I monitor the time error for the Western Grid here in the US. Over the last year the usual variation is very much the same as in David's graph for 2017 -- i.e., +/- 30 seconds. The power

Re: [time-nuts] Frequency deviations in Europe affect clocks

2018-03-08 Thread David G. McGaw
Can someone please explain why not paying your bills causes the grid and therefore the clocks to slow down?  None of the reports, either for the technical or lay person, give a reason. David N1HAC On 3/8/18 5:00 PM, Pieter-Tjerk de Boer wrote: Hello all, Here's my graph of the mains grid

[time-nuts] GPS L2 CNAV health reporting changes

2018-03-08 Thread J. Grizzard
I got a message from the Swiftnav support folks yesterday (I have a piksi multi amongst my little fleet of GPSen) because they had an emergency firmware patch to their kit because of a change in the L2C signal was giving them issues. (Props to them for getting a firmware update out in ~12

Re: [time-nuts] Frequency deviations in Europe affect clocks

2018-03-08 Thread Pieter-Tjerk de Boer
Hello all, Here's my graph of the mains grid phase deviation over the last month, and for comparison the normal behaviour during the previous year: http://wwwhome.ewi.utwente.nl/~ptdeboer/misc/mains-2018.html This is measured in Enschede, the Netherlands, by time-stamping every mains cycle

Re: [time-nuts] Frequency deviations in Europe affect clocks

2018-03-08 Thread Tim Shoppa
If the drift had been 5 or 15 seconds over a few days, sure, "catching up" is right. But after two months of accumulated 7 minutes deviation, surely everyone has already manually adjusted their clocks? And in the process of the grid "catching up" won't everyones clocks now be 7 minutes fast after

Re: [time-nuts] Frequency deviations in Europe affect clocks

2018-03-08 Thread Bill Woodcock
> On Mar 8, 2018, at 6:39 AM, Jean-Louis Rault wrote: > > A picture of my own microwaves oven, this 8th of march, near Paris, France .

[time-nuts] Frequency deviations in Europe affect clocks

2018-03-08 Thread Jean-Louis Rault
A picture of my own microwaves oven, this 8th of march, near Paris, France . The time reference is a DCF77 radio controlled clock. Jean-Louis Rault ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] Frequency deviations in Europe affect clocks

2018-03-08 Thread Jean-Louis Rault
A picture of my own microwaves oven, this 8th of march, near Paris, France . The time reference is a DCF77 radio controlled clock. Jean-Louis Rault Le 07/03/2018 à 21:09, Poul-Henning Kamp a écrit : In message <1520456485.3091982.1295242984.442b4...@webmail.messagingengine.com>,

Re: [time-nuts] TymServe TS2100 dead power supply

2018-03-08 Thread Philip Jackson
This might be of interest. I don't know any more about it than is stated at the site below: https://www.greenlake-eng.com/it/products/time-products/gle-tcsw/ Philip -- Forwarded message -- From: Bob Martin Date: Wed, Mar 7, 2018 at 2:34 PM Subject: Re:

Re: [time-nuts] TymServe TS2100 dead power supply

2018-03-08 Thread Magnus Danielson
Hi, On 03/07/2018 09:05 PM, Mark Sims wrote: > I once looked into adding IRIG generation to Lady Heather. I never came up > with a reliable / robust way to do it. It could possibly be done with some > of the Windows multi-media support, but that would leave the > Linux/macOS/FreeBSD people

Re: [time-nuts] How to properly simulate PLLs?

2018-03-08 Thread Sebastian Weiß
Hi Attila, have a look at CPPSim. http://www.cppsim.com/Tutorials/synthesizer_tutorial.pdf Sebastian On 07.03.2018 17:42, Attila Kinali wrote: > Hi, > > I have a small side task, where I need to design a PLL system > As it is a bit non-conventional, I am not confident that my > pen and paper