> From: "Richard B. Gilbert" <[EMAIL PROTECTED]> > Date: Wed, 13 Jun 2007 16:15:33 -0400 > Sender: [EMAIL PROTECTED] > > Kevin Oberman wrote: > >>From: Karl Denninger <[EMAIL PROTECTED]> > >>Date: Wed, 13 Jun 2007 12:07:22 -0500 > >>Sender: [EMAIL PROTECTED] > >> > >>Steve Kostecke wrote: > >> > >>>On 2007-06-13, Karl Denninger <[EMAIL PROTECTED]> wrote: > >>> > >>> > >>>>If Multitech can't get me something better than what I have I may try > <snip> > > > > Carl, > > > > We use CDMA and can keep time within a couple of microseconds. I am using > > an EndRun Technologies CDMA clock which provides PPS, but the jitter on > > the raw (TrueTime emulated) once a second update is about 4 ms at > > worst. This sucks compared to the PPS, but should be good for most cases > > where high precision is not an issue. > > > > By the way, the external CDMA clock from EndRun is pretty well hidden on > > the web pages under "Other Products". It is found at: > > http://www.endruntechnologies.com/network-time-source.htm > > > > They say "Email or call us for a competitive price quote...." > Why do I always get nervous when someone says that? It generally means > "all the traffic will bear and then some!" I much prefer to deal with > someone who says, up front, "it's $1253.99 plus shipping from. . . ." > It saves us both a bit of time because there's no way I'm going to pay > that much. It might be different if I had a corporate sponsor but > nowadays it's strictly out of my pocket!
Hmm. Since I called them before I visited the web page, I didn't notice that. In any case, they ran about $1100 when we bought our last batch last year. Work very well and will emulate several different types of clock including TrueTime, Spectacom, and Trimble Palisade. We have about a dozen scattered around the country. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
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