[time-nuts] Loran Europe Lessay seems to be back on air?

Pieter-Tjerk de Boer ptdeboer at cs.utwente.nl
Mon Jan 4 19:03:24 EST 2016


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 "extra" signal, the total
power was _lower_ than the "usual" value, implying that Anthorn (which is
now the strongest signal here) was off-air; it seems to have been on the
air only intermittently between 15:00 and 16:26 UTC.

So whatever it was that happened this afternoon, it wasn't just the switch
on of Lessay (if at all), something was (also) going on at Anthorn...
That might be a hint that the extra signal also came from Anthorn, e.g.
a dual-rate test. But this is of course just speculation.

Regards,
  Pieter-Tjerk, PA3FWM



On Mon, Jan 04, 2016 at 02:19:29PM -0500, paul swed wrote:
> I somewhat may guess its Anthorn.
> My 2 cents from across the ocean.
> 
> The Brits are pretty good about shutting things down. The fact that Anthorn
> stayed operational was pretty odd even if you thought the new years parties
> got in the way. Lets face it drink beer with friends or shut a transmitter
> in some far away place. I know my choice.
> 
> They can easily dual rate Anthorn. But then the signal level should be
> equal.
> On eLORAN tests in the US its a Master and the Y station. But its one
> transmitter. The same transmitter has no problem with some other rate
> running at the same time.
> 
> Regards
> Paul
> WB8TSL
> 
> 
> On Mon, Jan 4, 2016 at 1:19 PM, Poul-Henning Kamp <phk at phk.freebsd.dk>
> wrote:
> 
> > --------
> > In message <576b98.2a1f5672.43bc052e at aol.com>, GandalfG8--- via time-nuts
> > writes:
> >
> > >As of 1725, 4th January, Lessay seems to have been transmitting  again for
> > >at least 30 minutes, and showing the same or a slightly stronger  signal
> > >here on the west coast of Scotland than Anthorn.
> >
> > Are you sure it's not UK trying to rig something up for their eLoran
> > trials ?
> >
> > --
> > Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> > phk at 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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