[time-nuts] MSF Scheduled Maintenance Periods

Poul-Henning Kamp phk at phk.freebsd.dk
Mon Feb 9 15:45:49 EST 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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