[time-nuts] yesterday's European Loran-C shutdown

2016-01-01 Thread Pieter-Tjerk de Boer 

Yesterday I made an SDR recording of the LW/MW spectrum to capture the
shutdown of the European LORAN-C stations. An analysis of that recording
is now available at http://pa3fwm.nl/signals/loran-2015/ .

Regards,
  Pieter-Tjerk, PA3FWM
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[time-nuts] Europe VLF almost without Loran-C

2016-01-01 Thread Poul-Henning Kamp 
I spent an hour with the HP8568B to document the time-relevant
signals left in VLF:

http://phk.freebsd.dk/hacks/20151231_end_of_nels/index.html


-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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Re: [time-nuts] beaglebone black, debian, NTP client

2016-01-01 Thread Attila Kinali 
On Thu, 31 Dec 2015 17:27:40 -0800
jimlux  wrote:

> Has anyone fooled with using NTP on a beaglebone black running Debian 
> (the beagleboard.org image)?
> 
> I assume it's just a matter of turning on ntpd (which I'm not sure is 
> even installed) and/or running ntpdate (I'm not looking for super 
> accuracy.. it's for a sprinkler timer)

A couple of people have. If you look at the archives you'll find
a few of those. Dan Drown sticks out a bit here, as he is AFAIK
the only one who used a GPIO as a PPS input on the BBB:
(last mail seen around december 2014)

http://blog.dan.drown.org/beaglebone-black-timer-capture-driver/
http://blog.dan.drown.org/tcxo-beaglebone-black/

HTH

Attila Kinali

-- 
It is upon moral qualities that a society is ultimately founded. All 
the prosperity and technological sophistication in the world is of no 
use without that foundation.
 -- Miss Matheson, The Diamond Age, Neil Stephenson
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[time-nuts] Public lecture on atomic and optical clocks

2016-01-01 Thread Ole Petter Ronningen 
Hello

There is a relatively recent (november 2015) public lecture by David
Wineland on Youtube, titled "Keeping Better Time: The Era of Optical Atomic
Clocks". I thought it an interesting, clear overview for the non-expert.

Link: https://youtu.be/LxbkyuzXst4

I searched the archives, but could not find it - apologies if this has
already been reported.

Ole
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Re: [time-nuts] beaglebone black, debian, NTP client

2016-01-01 Thread David J Taylor 
Has anyone fooled with using NTP on a beaglebone black running Debian 
(the beagleboard.org image)?



I assume it's just a matter of turning on ntpd (which I'm not sure is 
even installed) and/or running ntpdate (I'm not looking for super 
accuracy.. it's for a sprinkler timer)



Yes, please see:
 http://www.satsignal.eu/ntp/BBB-vs-RPi.html

Happy New Year!

David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-tay...@blueyonder.co.uk
Twitter: @gm8arv
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Re: [time-nuts] eLORAN will be on the air

2016-01-01 Thread wb6bnq 

A whole year ago ? ? ? ? ?


paul swed wrote:


The Wildwood, NJ eLoran transmitter will be continuously broadcasting from
0900 (EST) on 05 January 2015 through 1500 (EST) on 15 January 2015.
Wildwood will be broadcasting as 8970 Master and Secondary most of the time
but occasionally may operate at other rates.

Happy New Year everyone.

Regards
Paul
WB8TSL
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Re: [time-nuts] Gregorian Calendar

2016-01-01 Thread lstoskopf 
 OK, not to the precision this group uses, but interesting:

"https://www.stratfor.com/analysis/geopolitics-gregorian-calendar;>The 
Geopolitics of the Gregorian Calendar is republished with permission of 
Stratfor."

https://www.stratfor.com/analysis/geopolitics-gregorian-calendar

N0UU
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