[time-nuts] MSF Scheduled Maintenance Periods
Poul-Henning Kamp
phk at phk.freebsd.dk
Mon Feb 9 20:45:49 UTC 2015
--------
In message <20150209121219.GY21469 at belle.intranet.vanheusden.com>, folkert writ
es:
>> MSF Scheduled Maintenance Periods
>>
>> The MSF 60 kHz standard-frequency and time signal, broadcast by Babcock on
>> behalf of NPL, is occasionally taken off-air to allow maintenance work on
>> the masts and antennas at Anthorn Radio Station to be carried out in safety.
>> This means that your radio-controlled clock will not be picking up the MSF
>> signal, so may not be working correctly.
>
>Could it be that they changed something with their setup?
The most likely explanation is a switch-mode power-supply in the
local environment. 60kHz is a very popular choice of switching
frequency.
--
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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