[email protected] said:
> Does the glitch mean you had a 16-second outage or what?  I'm not clear. 

Yes.

For the previous year or so, my local power has been very good.  I've seen 
occasional off-by-one counts in both directions but nothing more interesting 
than that.

I haven't tracked single-cycle steps down to either the raw power or my 
collection setup.  Here are examples:
  http://www.megapathdsl.net/~hmurray/time-nuts/60Hz/60Hz-2012-Jan-17-a-drop.p
ng
  http://www.megapathdsl.net/~hmurray/time-nuts/60Hz/60Hz-2012-Jan-26-a-pick.p
ng
Note that the vertical scale is cycles rather than seconds.

I also see occasional cases where it looks like a generator is dropping off 
line and it takes a while for the rest of the system to catch up:
  http://www.megapathdsl.net/~hmurray/time-nuts/60Hz/60Hz-2012-Mar-30-a-dip.pn
g

One of these days, I'll capture the audio.


> BTW: although the URLs have a .PNG file extension, the images come across in
>  .GIF format.  Are you converting on-the-fly? 

Thanks for the heads-up.  It was just a fatfinger.  They should be fixed now.


-- 
These are my opinions.  I hate spam.




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