[time-nuts] lawnmower robots may be the end of VLF timekeeping

[Björn]

http://forum.blitzortung.org/showthread.php?tid=705&highlight=lawn+mower

Working url. Sorry for the mistake in previous post.

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    Björn

<div>-------- Originalmeddelande --------</div><div>Från: Björn <bg at lysator.liu.se> </div><div>Datum:2015-05-09  20:15  (GMT+01:00) </div><div>Till: Discussion of precise time and frequency measurement <time-nuts at febo.com> </div><div>Rubrik: Re: [time-nuts] lawnmower robots may be the end of VLF timekeeping </div><div>
</div>The same has been observed by the lightning listeners at blitzortnung.org

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     Björn

<div>-------- Originalmeddelande --------</div><div>Från: Poul-Henning Kamp <phk at phk.freebsd.dk> </div><div>Datum:2015-05-09  14:15  (GMT+01:00) </div><div>Till: time-nuts at febo.com </div><div>Rubrik: [time-nuts] lawnmower robots may be the end of VLF timekeeping </div><div>
</div>I spent some time capturing some data today.

The measurements is from my $20 loop-antenna in the attic, which is
something like 8 meters up and 10 meters besides the lawn-mower loop:

http://phk.freebsd.dk/time/20150509.html

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
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Never attribute to malice what can adequately be explained by incompetence.
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