[time-nuts] Yukon Energy causes time sync problems

J. Forster jfor at quik.com
Sat Apr 10 14:35:41 EDT 2010


Bill,

I think you are quite right.

And some rotating machinery was still there 8-10 years later, as was
Kingsley, Woodson, Melcher, and Richardson.

-John

=============

> Tom, I don't intend to challenge your knowledge but to discuss
> the subject. It's amazing what a different viewpoint can do, and
> how difficult it is to share viewpoints in email.
>
> As a person who grew up with synchronous clocks, when real men used
> vacuum tubes, I find it incredible that a lightly loaded synchronous
> clock motor could go any faster than the line frequency. It can go
> slower if the bearings gum up with old oil and the motor drops out
> of sync. That's why I say that the reference clock slowed down.
>
> We can't resolve this until we know what Yukon was using for clocks.
> I thought the article implied that their reference clock was a wall
> clock somehow driven by some signal from some satellite. GPS wasn't
> mentioned.
>
> Bill Hawkins
> BSME MIT 1960 (minor EE) (would have majored in EE but the old
> rotating machinery was torn out and replaced by vector math)
>
>
> -----Original Message-----
> From: Thomas A. Frank
> Sent: Saturday, April 10, 2010 11:00 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Yukon Energy causes time sync problems
>
>
> On Apr 10, 2010, at 2:17 AM, Bill Hawkins wrote:
>
>> Read the quote again, please.
>
> I did, which is why I am a bit confused.
>
>> Their line clock was *faster* than the
>> satellite clock. When they reduced mechanical power to slow their
>> line clock to track the satellite clock, the customer's clocks slowed
>> down.
>
> Which is exactly as it should be.  It reads to me like their line
> clock malfunctioned and was running fast *when it had no cause to*,
> so they responded as expected (slow the generators), with the
> expected result (everyones clocks slowed down).
>
>> The satellite clock was slow.
>
> Yet my takeaway from the article was not that the satellite clock was
> in error, but that the line clock was.  It was running fast when it
> shouldn't have.
>
> I can see where a line clock would run fast when it shouldn't, but I
> can't see where a GPS clock would run slow...
>
> Tom Frank, KA2CDK
> BSEE RPI 1985
>
>
>
>
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