Hi,
Apparently India plans to build two longwave transmitters for a national
time signal service:
http://www.thehindu.com/todays-paper/tp-national/coming-huge-towers-to-publicise-right-time/article23377284.ece
No technical details such as frequency and modulation are given, nor whether
the
Hello,
It looks like the European (ENTSOE) mains grid phase is now heading back
to what it was before the large deviation of February.
See my measurements at
http://wwwhome.ewi.utwente.nl/~ptdeboer/misc/mains-2018.html
The ENTSOE website doesn't mention this correction yet, other than as a
using NTP for reference.
Naturally, the 2018 part of the graph nicely matches the graph Detlef posted.
Regards,
Pieter-Tjerk de Boer (PA3FWM)
On Thu, Mar 08, 2018 at 03:50:42PM +0100, d.schuec...@avm.de wrote:
>
> Hi,
>
> from new years eve until today 00:00 the European Elec
On Tue, Mar 07, 2017 at 05:37:54PM +0100, emmanuel.fuste--- via time-nuts wrote:
> Here you have bulletin H from Observatoire de Paris (responsible for SYRTE
> and IERS/ICRS,IRTS)
> https://syrte.obspm.fr/tfc/temps/outgoing_data/laboTAF/bulH/
> And here the monitoring of the TDF162 signal from
On Tue, Mar 07, 2017 at 10:04:45AM +, Iain Young wrote:
> On 07/03/17 03:35, paul swed wrote:
> >Actually as I think about it from the earlier part of the thread. Locking
> >to the carrier with a 2-4 second time constant removes the phase modulation
> >since its only in the first 200 ms. The
On Sun, Mar 05, 2017 at 10:42:52PM +, Iain Young wrote:
> That's TDF from France. Their equivalent of WWV/MSF/DCF.
> Average phase and frequency deviation is
> zero over 200msec (see link above for details)
This is not quite correct, since the transmitter does not just carry the
time data
It seems France's TDF timesignal (phase modulation of a 162 kHz carrier,
which until the end of 2016 also carried France Inter radio sound as
amplitude modulation) inserted their leapsecond a minute early.
Like MSF and DCF77, TDF transmits one bit per second, together composing
the exact time at
On Wed, Jan 06, 2016 at 05:05:37PM +, Poul-Henning Kamp wrote:
> It seems to me that the code they use for the 6731M signal is botched,
> anybody who can confirm ?
Indeed, see the attached plot (from a recording I made earlier this
evening): the master signal is totally lacking the 180
On http://websdr.ewi.utwente.nl:8901/fullday/ , one can see that the extra
LORAN signal has been on the air roughly from 16:26 till 17:30 UTC: the
waterfall clearly shows that the total received power around 100 kHz was
higher during that time.
One also sees that just _before_ the start of the
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
___
time-nuts
On Sat, Dec 19, 2015 at 10:01:44PM +, Poul-Henning Kamp wrote:
>
> In message <5675ac3c.8020...@aei.ca>, Graham writes:
>
> >Would you be able to record what you want via the online web SDR at the
> >Twente University?
>
> Not really. That would only give a water-fall.
>
> What
national library has a copy:
http://catalogue.bnf.fr/ark:/12148/cb359121237/PUBLIC
and there's a button on that page (Acheter une reproduction) to buy
a paper copy or a scan.
Regards,
Pieter-Tjerk de Boer
___
time-nuts mailing list -- time-nuts
On Sun, Jan 01, 2012 at 11:55:26PM +0100, Azelio Boriani wrote:
Pieter, please, would you be so kind as to share, for example, the last 60
seconds file?
At present I only have it in a rather unwieldy form (namely a recording
of the entire 0 - 96 kHz spectrum made with two orthogonal loop
I did manage to make a recording of HBG's shutdown this morning.
It was at 07:00:13.2 UTC.
Why precisely then, I don't know...
HNY,
Pieter-Tjerk, PA3FWM
On Sun, Jan 01, 2012 at 01:24:09PM +0100, Azelio Boriani wrote:
Yes, the HBG has gone... I wasn't able to record the last transmission. If
On Fri, Jul 01, 2011 at 01:06:31PM -0700, Chris Albertson wrote:
On Fri, Jul 1, 2011 at 12:46 PM, Will Matney xfor...@citynet.net wrote:
. For accuracy sake,
I'd still compare the line freq. to a standard, but that's just me.
If the computer used for this is also running ntpd the
Hello 50 60 Hz nuts,
The recent discussions here on measuring the mains frequency and
phase prompted me to revive an experiment I set up some 3 years ago.
Live data about the phase and frequency of the 50 Hz mains here in
the Netherlands can now be viewed at:
During the leap second, I recorded 6 parts of the radio spectrum,
containing a few time and frequency stations, and a lot of AM
broadcast stations.
An analysis of these recordings is now here:
http://wwwhome.cs.utwente.nl/~ptdeboer/ham/sdr/leapsecond-2008.html
Out of 33 long- and mediumwave
On Wed, Dec 31, 2008 at 09:01:20AM -0600, Scott Newell wrote:
What's everyone else planning on recording?
I hope to record roughly the following parts of the radio spectrum:
0 - 300 kHzMSF, HBG, DCF, Loran, longwave broadcast
700 - 1300 kHz part of the medium-wave broadcast band
On Tue, May 08, 2007 at 02:09:53PM -0400, Maggie Leber wrote:
Perhaps my hard core requirement should be restated as no
transistors rather than no semiconductors. :-)
In that case, I guess my clock also qualifies: it uses neon lamps
as its active components.
The only semiconductors used are
On Fri, Oct 06, 2006 at 03:17:14PM -0500, Bill Hawkins wrote:
Does anybody in this group look at power line frequency drift?
Not currently, but I did so last year during a few months:
http://wwwhome.cs.utwente.nl/~ptdeboer/misc/mains.html
Pieter-Tjerk (PA3FWM)
On Sat, Jan 07, 2006 at 12:12:10PM +0100, Poul-Henning Kamp wrote:
Looks like the inserted the leapsecond after the minutemarker:
http://phk.freebsd.dk/Leap/20051231_HBG/
I have noticed this error too (and errors in MSF and Deutschlandfunk);
see
Hello,
During the leap second, I recorded the (V)LF radio spectrum between
10 and 204 kHz. At my location in Enschede, The Netherlands, this
includes at least four time signal stations:
- MSF (England) on 60 kHz;
- HBG (Switzerland) on 75 kHz;
- DCF77 (Germany) on 77.5 kHz;
- the French AM
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