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RE: [dxatlas] STRATUM-0 NTP / GPS Time Server

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  • Dave
    Great stuff. Thank you for sharing. I think it could make a world of difference with Faros. Dave DM78qg // KA0SWT /++++++++++++++++++++++++++++++++/ ... From:
    Message 1 of 2 , Dec 24, 2009
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      Great stuff. Thank you for sharing. I think it could make a world of
      difference with Faros.

      Dave
      DM78qg // KA0SWT
      /++++++++++++++++++++++++++++++++/





      -----Original Message-----
      From: dxatlas_group@yahoogroups.com [mailto:dxatlas_group@yahoogroups.com]
      On Behalf Of guvgeek
      Sent: Thursday, December 24, 2009 05:44
      To: dxatlas_group@yahoogroups.com
      Subject: [dxatlas] STRATUM-0 NTP / GPS Time Server

      Alex (VE3NEA) indicated that members of the group were interested in an
      accurate NTP Time Server. Out of necessity, I built one for my FAROS 1.3
      Beacon Monitoring Station in South Africa.

      See http://kw1o.com/faros/ for information on how to put one together.
      Select the (Review the Stratum-0 Project) link.

      Worse case cost should be under $500. Gross accuracy over my home network
      is +-20ms, but you can achieve better than +-10ms accuracy in Faros due to
      the way it averages the time data. I never even approached this level of
      accuracy from NTP Internet Time here in South Africa. Much of the time
      +-100ms was the norm, and Internet downtime is high. If you build one, I
      think you will be surprised at how poor Internet Time really is. In my
      research for the project, I found that in general, Internet business
      transactions only require +-200ms accuracy, thus there really is no need for
      very accurate time on the Internet, at least from an Internet business
      perspective!

      -Mark
      KW1O





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