Article View: comp.protocols.time.ntp
Article #900Re: General help-info
From: Mills
Date: Sun, 02 Jun 1991 20:48
Date: Sun, 02 Jun 1991 20:48
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Edward, You really do need to peer with several (like three) radio clocks, because they sometimes lose their chime due to various ionspheric phenomena and carbon-based unit failures. Also, the radio transmissions used by various clocks are not available everywhere in the world and, in fact for some services, not outside continental US and continental Europe. In principle, GPS is available everywhere, but at $10K a pop, not affordable by most. At the moment there are stratum-1 servers in US, Canada, Switzerland, Germany and Norway. Even Norway is a special case, since only its timebase oscillator is synchronized to national standards and the seconds are numbered using NTP and other stratum-1 servers. It would of course be wonderful if heavy hitters with lots of hosts and bucks could buy GPS receivers for timecode-deprived parts of the world and make their ticks accessable via NTP. Dave
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!ucbvax!udel.edu!MillsShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!ucbvax!udel.edu!Mills From: Mills@udel.edu Newsgroups: comp.protocols.time.ntp Subject: Re: General help-info Message-ID: <9106021648.aa11234@huey.udel.edu> Date: 2 Jun 91 20:48:13 GMT Sender: daemon@ucbvax.BERKELEY.EDU Distribution: inet Organization: The Internet Lines: 19