[ntp:questions] Re: questions on msf (via shm) clock

dave morgan morgad at eclipse.co.uk
Thu Dec 30 11:27:52 UTC 2004


On Thu, 30 Dec 2004 10:54:18 +0000, Jonathan Buzzard
<jonathan at uk.me.buzzard> wrote:

>On Mon, 27 Dec 2004 20:07:27 +0000, dave morgan wrote:
>
>> Hi,
>
>> b) why does the refid for this clock show SHM(0), even though the 
>> lines for it in the ntp.conf file is as follows?
>> 
>> #msf rx on serial port 1
>> server 127.127.28.0 prefer
>> fudge 127.127.28.0 stratum 2  time1 0.022  refid MSF
>
>>From memory because you have changed fudged the stratum level.

*bingo* - is this a bug or a feature?

>You should leave it at it's default stratum level of zero. This is because
>what you have is a genuine stratum zero reference clock. All hardware
>reference clocks that acquire their time from a remote source via radio or
>microwaves are by definition stratum zero. Don't be fooled by the fact
>that it did not cost very much.
>

Now running stratum zero. 

many thanks all
Dave
(back in a month or two with some similar questions about GPS, but
need to wait till Debian 'Sarge' released first)

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