On Fri, 18 Sep 2009 08:25:12 +0100, Arfa Daily wrote:

Why the clcok is now 4hrs slow is an odd one. If there is any
identifying marks numbers etc on the meter try feeding them into to
google to see if more information about the meter can be found. It
may have a radio receiver in it, which uses phase modulation(?) on R4
LW 198kHz to get time information and possibly when to switch rates.

--
Cheers
Dave.




Yes, it is an odd one, as the meter is otherwise working completely
correctly, and it happened suddenly apparently, during Wednesday night.
You're right with the R4 transmissions. I definitely remember reading that
timecode transmissions were put on there to synchronise Economy 7 clocks,
and I think that you are right on the phase mod as well. I've no idea
whether these 'modern' meters also have sync by radio, but I would have
thought that it was a bit 'dangerous' for them not to have, for both the
customer and the supply company. I was half expecting that when I checked
this morning, it would have put itself right and that the error was just
some anomaly that had occured, but no. There it is large as life (well
pretty small LCD actually !) still exactly 4 hours slow, so still at this
time, recording night units, even though we are now well into what should be
the day period.

The chap who fitted mine a few weeks ago said that it wasn't controlled by
R4; I'll know at the end of next month.
--
Peter.
The head of a pin will hold more angels if
it's been flattened with an angel-grinder.