[time-nuts] Time nut newbie
lists at rtty.us
Wed May 1 07:00:33 EDT 2013
It was tired old eyes and tiny numbers on the calculator ….That plus to much distraction to double check things.
On Apr 30, 2013, at 9:57 PM, Rex <rexa at sonic.net> wrote:
> It doesn't affect the general magnitude conclusions by Bruce, but as long as we are making corrections, my calculator seems to think
> 60 * 60 * 24 * 12 = 1036800 seconds in 12 days, not 1024800. That does come out to 115.7 days for 1 sec error. Maybe the 12-day number was a typo?
> On 4/30/2013 12:57 PM, Bruce Griffiths wrote:
>> 12 days is 1024800 s ie just over 1 million seconds so a frequency offset of 0.1ppm results in a time error of ~ 0.1s not 1s.
>> 1sec error would occur in just under 116 days,
>> Bob Camp wrote:
>>> If you take a look down in the fine print on the OCXO spec, the aging rate
>>> is 100 ppb / year in the first year. If you are off by 0.1 ppm (100 ppb)
>>> your clock will gain a second in less than 12 days.
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