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Re: [gpsd-dev] Clarifications needed for the time-service HOWTO
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO |
Date: |
Wed, 23 Oct 2013 12:06:33 -0700 |
Yo Hal!
On Wed, 23 Oct 2013 11:12:45 -0700
Hal Murray <address@hidden> wrote:
> > We are just going for stability.
>
> Huh?
>
> A clock that is stable but wrong isn't helpful.
For some definitions of "wrong". I would turn it around and ask you how
you can know a clock is "right"? Is the current definition of a kilogram
wrong becase it only goes to 7 digits? We can go to 10 with PPS!
If I can only comfirm, by tracing to a national standards body, that
my time is only good to 4 digits, is my time "wrong"?
I suggest you get a good book on metrology.
"accuracy" is what yuo can prove beyond the shaodw of a dout.
"resolution" is what you can measure.
Do not confuse accuracy with reslution.
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701
address@hidden Tel:+1(541)382-8588
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- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, (continued)
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Gary E. Miller, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Eric S. Raymond, 2013/10/24
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Hal Murray, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Eric S. Raymond, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Gary E. Miller, 2013/10/23
- Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Beat Bolli, 2013/10/23
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Miroslav Lichvar, 2013/10/23
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Hal Murray, 2013/10/23
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Eric S. Raymond, 2013/10/24
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Gary E. Miller, 2013/10/24
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Eric S. Raymond, 2013/10/24
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Gary E. Miller, 2013/10/24
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Harlan Stenn, 2013/10/24
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Hal Murray, 2013/10/25
Re: [gpsd-dev] Clarifications needed for the time-service HOWTO, Harlan Stenn, 2013/10/25