[time-nuts] Need Time Help
jimlux at earthlink.net
Thu Oct 6 15:05:10 EDT 2016
On 10/6/16 11:15 AM, William H. Fite wrote:
> Indeed, Nick. And more than a little (usually) courteous one upmanship
> couched in terms of being helpful by correcting all previous posters. This
> gentlemanly "mine is bigger than yours" phenomenon is part of what makes
> this group fun to read.
Except that here, the popular metrics (AVAR, Phase Noise, etc.) are
"smaller is better" so the bragging rights go to the list member
claiming 1E-16 over, say, the relatively feeble 1E-6.
When you get to those sorts of levels, too, it's a lot of attention to
the details that lets you get there.
It's like GPS: getting 10 meter accuracy is easy
Getting 1 meter is tougher but still straightforward
But getting to centimeters, all of a sudden there's all these factors
that are insignificant at the 10 meter level but all significant at the
centimeter level: solid earth tides, ionospheric issues, multipath, etc.
And what's great about this group is that there are people on the list
who have been bitten by probably every thing that can go wrong (not one
person had ALL of them, but spanning the group) or could be speculated
to go wrong.
> On Thu, Oct 6, 2016 at 2:03 PM, Nick Sayer via time-nuts <time-nuts at febo.com
>> To be fair, this is at least partly because asking a relatively simple
>> question here routinely turns into a dissertation defense.
>>> On Oct 6, 2016, at 3:45 AM, Bob Camp <kb8tq at n1k.org> wrote:
>>> That’s very typical in a lot of forums. The OP tosses up a question and
>> then pretty much vanishes.
>>> My observation is that roughly 80% of the “I have a question” threads
>> work that way.
>>> I’ve never been able to figure out if it is an expectation that all
>> answers will arrive in an hour or two
>>> or if the OP is simply reading along and sees no reason to providing
>> more information to the group.
>>> Either way, I’m pretty sure that the focus of the answers is not all
>> that great a week after the last input.
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